Re: [BUG] 2.6.23-rc3 can't see sd partitions on Alpha
Kay Sievers wrote: On Fri, 2007-12-07 at 23:05 -0600, Bob Tracy wrote: Kay Sievers wrote: Is the udev daemon (still) running while it fails? Yes, and there's something else I forgot to mention that may be significant... For the bad case, in addition to udevd, ps -ef shows a sh -e /lib/udev/net.agent running with a PPID of 1. This process doesn't exit until I reboot. If this is normal under the circumstances, please disregard. Does SysRq-T show where it hangs? A quick comparison of the trace sections for udevd and net.agent indicates those traces are identical: none of the function names in the traces appear to be what you might be looking for, i.e., the processes appear to have been waiting for an event of some kind, and woke up long enough to process the SysRq-T keyboard interrupt and the corresponding action. Hmm... Ok... The state information itself is probably more useful in this context. Here's the info for net.agent: net.agent S fc32c37c 08951 fc743b10 0010 fc4f3b5c fc7601a8 0001 0074 fc747758 fc00230f 0007 0007 fc4f390c 0010 fc4e9eb8 fc00230f 0014 fc0023085140 0001 0014 fc1de000 0001 fc55dcfc fc0023085140 fc00232788c0 0001 Addresses of presumed interest from System.map: fc32c000 t do_wait fc74 D init_thread_union fc4f3b40 t sysrq_handle_showstate fc7601a8 d sysrq_showstate_op fc747758 D console_printk fc002... not in System.map (module?) -- I'll track this down later if needed. fc4f3850 T __handle_sysrq fc4e9850 t kbd_event fc1... not in System.map (?? begins with fc30 A swapper_pg_dir) fc55dc30 t input_pass_event --Bob T. - To unsubscribe from this list: send the line unsubscribe linux-scsi in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html
Re: [BUG] 2.6.23-rc3 can't see sd partitions on Alpha
Ivan Kokshaysky wrote: On Sat, Dec 08, 2007 at 10:19:39PM -0600, Bob Tracy wrote: I *do* have CONFIG_MAGIC_SYSRQ set. Anyone care to bet whether my machine starts working again if I disable it? Sheesh... Incredible... Toggling CONFIG_MAGIC_SYSRQ works for me too, so I'm finally able to reproduce the problem (which is the main positive result so far ;-) There are lots of possible reasons why this happens, but at the moment I honestly have no idea. For now I have reassigned the bug #9457 to myself and will gradually hack into udev... Thanks... Let me know if there's anything useful I can do to help. --Bob T. - To unsubscribe from this list: send the line unsubscribe linux-scsi in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html
Re: [BUG] 2.6.23-rc3 can't see sd partitions on Alpha
On Mon, Dec 10, 2007 at 09:08:53AM -0600, Bob Tracy wrote: Ivan Kokshaysky wrote: For now I have reassigned the bug #9457 to myself and will gradually hack into udev... Thanks... Let me know if there's anything useful I can do to help. It turns out to be yet another strncpy() bug that indeed shows up only with certain src/dst alignments and breaks kobject_get_path(). Ugh... Hopefully I'll have a patch tomorrow. Ivan. - To unsubscribe from this list: send the line unsubscribe linux-scsi in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html
Re: [BUG] 2.6.23-rc3 can't see sd partitions on Alpha
On Sat, Dec 08, 2007 at 10:19:39PM -0600, Bob Tracy wrote: I *do* have CONFIG_MAGIC_SYSRQ set. Anyone care to bet whether my machine starts working again if I disable it? Sheesh... Incredible... Toggling CONFIG_MAGIC_SYSRQ works for me too, so I'm finally able to reproduce the problem (which is the main positive result so far ;-) There are lots of possible reasons why this happens, but at the moment I honestly have no idea. For now I have reassigned the bug #9457 to myself and will gradually hack into udev... Ivan. - To unsubscribe from this list: send the line unsubscribe linux-scsi in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html
Re: [BUG] 2.6.23-rc3 can't see sd partitions on Alpha
On Fri, 2007-12-07 at 23:05 -0600, Bob Tracy wrote: Kay Sievers wrote: Is the udev daemon (still) running while it fails? Yes, and there's something else I forgot to mention that may be significant... For the bad case, in addition to udevd, ps -ef shows a sh -e /lib/udev/net.agent running with a PPID of 1. This process doesn't exit until I reboot. If this is normal under the circumstances, please disregard. Does SysRq-T show where it hangs? Kay - To unsubscribe from this list: send the line unsubscribe linux-scsi in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html
Re: [BUG] 2.6.23-rc3 can't see sd partitions on Alpha
Kay Sievers wrote: On Fri, 2007-12-07 at 23:05 -0600, Bob Tracy wrote: Kay Sievers wrote: Is the udev daemon (still) running while it fails? Yes, and there's something else I forgot to mention that may be significant... For the bad case, in addition to udevd, ps -ef shows a sh -e /lib/udev/net.agent running with a PPID of 1. This process doesn't exit until I reboot. If this is normal under the circumstances, please disregard. Does SysRq-T show where it hangs? Ummm... No. I didn't have the CONFIG_MAGIC_SYSRQ flag set, so I set it, and recompiled the kernel. Guess what - now the system comes up normally without any problem. The block devices appear in /dev. To recap: without CONFIG_MAGIC_SYSRQ on the 2.6.24-rc3 kernel the missing block devices error in /dev occurs and the init scripts fall over on startup, and with CONFIG_MAGIC_SYSRQ the system comes up normally. To answer the earlier questions about distro, and udev version, my system is similar to Bob's, except that I am running Debian testing/lenny which comes with udev version 114 (dpkg reports udev version 0.114-2). I am running an EV67 variant CPU. I do not run an initramfs - I have the necessary drivers for the various discs compiled into the kernel and use the root kernel option to point to the required root partition. When running the broken kernel udev is running (according to 'ps') and executing /sbin/udevtrigger manually generates a number of errors of the form: scsi_id[pid]: scsi_id: unable to access '/block' The missing /dev/* entries do not appear. Cheerz Michael. - To unsubscribe from this list: send the line unsubscribe linux-scsi in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html
Re: [BUG] 2.6.23-rc3 can't see sd partitions on Alpha
Michael Cree wrote: Kay Sievers wrote: On Fri, 2007-12-07 at 23:05 -0600, Bob Tracy wrote: Kay Sievers wrote: Is the udev daemon (still) running while it fails? Yes, and there's something else I forgot to mention that may be significant... For the bad case, in addition to udevd, ps -ef shows a sh -e /lib/udev/net.agent running with a PPID of 1. This process doesn't exit until I reboot. If this is normal under the circumstances, please disregard. Does SysRq-T show where it hangs? Ummm... No. I didn't have the CONFIG_MAGIC_SYSRQ flag set, so I set it, and recompiled the kernel. Guess what - now the system comes up normally without any problem. The block devices appear in /dev. To recap: without CONFIG_MAGIC_SYSRQ on the 2.6.24-rc3 kernel the missing block devices error in /dev occurs and the init scripts fall over on startup, and with CONFIG_MAGIC_SYSRQ the system comes up normally. I *do* have CONFIG_MAGIC_SYSRQ set. Anyone care to bet whether my machine starts working again if I disable it? Sheesh... The kernel alignment issue theory is making sense... We change the size of an initialized variable with the patch, and the problem shows up. We shift starting addresses a different way by tweaking kernel options, and two wrongs make a right? I've seen it happen, and tracking this down isn't going to be easy. Anyone want to wade through the different System.map files and hazard a guess where we're leaving the rails? Here's a very brief diff excerpt between the System.map files corresponding to sysctl_check patch reverted (the -dirty version) and with sysctl_check patch. At least they agree up to line 10870 :-) ... --- /boot/System.map-2.6.24-rc2-g6f37ac79-dirty 2007-12-07 08:03:50.0 -0 600 +++ System.map 2007-12-07 13:43:37.0 -0600 @@ -10868,9414 +10868,9414 @@ fc684b00 R kallsyms_markers fc684d00 R kallsyms_token_table fc685100 R kallsyms_token_index -fc6f61e0 r __pci_fixup_PCI_VENDOR_ID_SERVERWORKSPCI_DEVICE_ID_SERVERWORKS_CSB5IDEquirk_svwks_csb5ide -fc6f61e0 R __start_pci_fixups_early -fc6f61f0 r __pci_fixup_PCI_VENDOR_ID_INTELPCI_DEVICE_ID_INTEL_82801CA_10quirk_ide_samemode (...) -fc716120 r __param_bic_scale -fc716148 r __param_tcp_friendliness -fc716170 R __end_rodata -fc716170 R __stop___param +fc6f61f0 r __pci_fixup_PCI_VENDOR_ID_SERVERWORKSPCI_DEVICE_ID_SERVERWORKS_CSB5IDEquirk_svwks_csb5ide +fc6f61f0 R __start_pci_fixups_early +fc6f6200 r __pci_fixup_PCI_VENDOR_ID_INTELPCI_DEVICE_ID_INTEL_82801CA_10quirk_ide_samemode (...) +fc716130 r __param_bic_scale +fc716158 r __param_tcp_friendliness +fc716180 R __end_rodata +fc716180 R __stop___param fc718000 A __init_begin fc718000 T _sinittext fc718000 t set_reset_devices When running the broken kernel udev is running (according to 'ps') and executing /sbin/udevtrigger manually generates a number of errors of the form: scsi_id[pid]: scsi_id: unable to access '/block' The missing /dev/* entries do not appear. I don't get the errors that Michael is seeing, and udevtrigger seems to be exiting without errors (return code 0). The last part is the same: the missing /dev/* entries do not appear. --Bob T. - To unsubscribe from this list: send the line unsubscribe linux-scsi in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html
Re: [BUG] 2.6.23-rc3 can't see sd partitions on Alpha
I wrote:
git diff 2f1f53bdc6531696934f6ee7bbdfa2ab4f4f62a3
6f37ac793d6ba7b35d338f791974166f67fdd9ba
produced a relatively short patch (18,437 bytes). The list of involved
files:
(omitted)
Current state of the source tree is the 6f37ac... version, so I'll start
backing out the above diffs in related groups and continue until I've got
a working kernel. For lack of an obvious target, I'll start with the
seemingly innocuous change to sysctl_check.c. I'll report back when I've
got something.
That was quick :-). Backing out the sysctl_check.c diff gives me a
working kernel. Beats the [EMAIL PROTECTED] out of me how/why, though.
Michael Cree: could you try backing out the diff below from your
2.6.24-rc3 tree and see if things are now working for you?
Here's uname -a, just to confirm (maybe) I'm running on what I say
works:
Linux smirkin 2.6.24-rc2-g6f37ac79-dirty #2 Fri Dec 7 08:03:12 CST 2007 alpha
Here's the diff I backed out (patch -R). It's short...
diff --git a/kernel/sysctl_check.c b/kernel/sysctl_check.c
index 5a2f2b2..4abc6d2 100644
--- a/kernel/sysctl_check.c
+++ b/kernel/sysctl_check.c
@@ -738,7 +738,7 @@ static struct trans_ctl_table trans_net_table[] = {
{ NET_ROSE, rose, trans_net_rose_table },
{ NET_IPV6, ipv6, trans_net_ipv6_table },
{ NET_X25, x25, trans_net_x25_table },
- { NET_TR, tr, trans_net_tr_table },
+ { NET_TR, token-ring, trans_net_tr_table },
{ NET_DECNET, decnet, trans_net_decnet_table },
/* NET_ECONET not used */
{ NET_SCTP, sctp, trans_net_sctp_table },
--
Bob Tracy | They couldn't hit an elephant at this dist-
[EMAIL PROTECTED] | - Last words of Union General John Sedgwick,
| Battle of Spotsylvania Court House, U.S. Civil War
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Re: [BUG] 2.6.23-rc3 can't see sd partitions on Alpha
* Bob Tracy [EMAIL PROTECTED] wrote:
Current state of the source tree is the 6f37ac... version, so I'll
start backing out the above diffs in related groups and continue
until I've got a working kernel. For lack of an obvious target,
I'll start with the seemingly innocuous change to sysctl_check.c.
I'll report back when I've got something.
That was quick :-). Backing out the sysctl_check.c diff gives me a
working kernel. Beats the [EMAIL PROTECTED] out of me how/why, though.
Michael Cree: could you try backing out the diff below from your
2.6.24-rc3 tree and see if things are now working for you?
Here's uname -a, just to confirm (maybe) I'm running on what I say
works:
Linux smirkin 2.6.24-rc2-g6f37ac79-dirty #2 Fri Dec 7 08:03:12 CST 2007 alpha
Here's the diff I backed out (patch -R). It's short...
diff --git a/kernel/sysctl_check.c b/kernel/sysctl_check.c
index 5a2f2b2..4abc6d2 100644
--- a/kernel/sysctl_check.c
+++ b/kernel/sysctl_check.c
@@ -738,7 +738,7 @@ static struct trans_ctl_table trans_net_table[] = {
{ NET_ROSE, rose, trans_net_rose_table },
{ NET_IPV6, ipv6, trans_net_ipv6_table },
{ NET_X25, x25, trans_net_x25_table },
- { NET_TR, tr, trans_net_tr_table },
+ { NET_TR, token-ring, trans_net_tr_table },
{ NET_DECNET, decnet, trans_net_decnet_table },
/* NET_ECONET not used */
{ NET_SCTP, sctp, trans_net_sctp_table },
reverting this makes the kernel image shorter by 8 bytes - so perhaps
some alignment issue somewhere? Or something gets overflown? Does any of
this get actually used by your bootup?
Ingo
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Re: [BUG] 2.6.23-rc3 can't see sd partitions on Alpha
* Bob Tracy [EMAIL PROTECTED] wrote: I'm struggling to see how any of those could have broken block device mounting on alpha. Are you sure you bisected right? Based on what's in that commit, it *does* appear something went wrong with bisection. If the implicated commit is the next one in time sequence relative to # good: [2f1f53bdc6531696934f6ee7bbdfa2ab4f4f62a3] CRISv10 fasttimer: Scrap INLINE and name timeval_cmp better then the test of whether I bisected correctly is as simple as applying the commit and seeing if things break, because I'm running on the kernel corresponding to 2f1f53bdc6531696934f6ee7bbdfa2ab4f4f62a3 right now. Let me give that a try and I'll report back. Worst case, I'll have to start over and write off the past four days... generally it's easier to just go back in time and re-try the last known good and last-known bad commit IDs to establish that they are indeed correctly identified. if they are not then step back one more in the bisection log. No need to spend another 4 days on this, if most of the bisection is OK. You can replay a corrected git bisection log quickly, by doing: git-bisect reset git-bisect bisect.log Ingo - To unsubscribe from this list: send the line unsubscribe linux-scsi in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html
Re: [BUG] 2.6.23-rc3 can't see sd partitions on Alpha
Andrew Morton wrote: On Thu, 6 Dec 2007 23:07:08 -0600 (CST) [EMAIL PROTECTED] (Bob Tracy) wrote: Andrew Morton wrote: commit 6f37ac793d6ba7b35d338f791974166f67fdd9ba Merge: 2f1f53b... d90bf5a... Author: Linus Torvalds [EMAIL PROTECTED] Date: Wed Nov 14 18:51:48 2007 -0800 Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/n * 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6: (omitted for brevity) I'm struggling to see how any of those could have broken block device mounting on alpha. Are you sure you bisected right? Based on what's in that commit, it *does* appear something went wrong with bisection. If the implicated commit is the next one in time sequence relative to # good: [2f1f53bdc6531696934f6ee7bbdfa2ab4f4f62a3] CRISv10 fasttimer: Scrap INLINE and name timeval_cmp better then the test of whether I bisected correctly is as simple as applying the commit and seeing if things break, because I'm running on the kernel corresponding to 2f1f53bdc6531696934f6ee7bbdfa2ab4f4f62a3 right now. Let me give that a try and I'll report back. Worst case, I'll have to start over and write off the past four days... Gad. I trust the second time will be faster. git-bisect _is_ very error prone. I find one of the problems is that each step is so far apart in time that you forget what you were doing. Did I remember to test that iteration? Did I install the right kernel? etc. Sorry about this... Not appropriate ;) Thanks for helping out. Thanks for the kind words... The above-mentioned test verified that the bisection was/is correct: 2f1f53bdc6531696934f6ee7bbdfa2ab4f4f62a3 works, and 6f37ac793d6ba7b35d338f791974166f67fdd9ba doesn't. Now I've got to figure out why. git diff 2f1f53bdc6531696934f6ee7bbdfa2ab4f4f62a3 6f37ac793d6ba7b35d338f791974166f67fdd9ba produced a relatively short patch (18,437 bytes). The list of involved files: diff --git a/drivers/char/random.c b/drivers/char/random.c diff --git a/drivers/isdn/sc/card.h b/drivers/isdn/sc/card.h diff --git a/drivers/isdn/sc/packet.c b/drivers/isdn/sc/packet.c diff --git a/drivers/isdn/sc/shmem.c b/drivers/isdn/sc/shmem.c diff --git a/drivers/net/arm/ep93xx_eth.c b/drivers/net/arm/ep93xx_eth.c diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c diff --git a/drivers/net/e1000/e1000_main.c b/drivers/net/e1000/e1000_main.c diff --git a/drivers/net/fs_enet/Kconfig b/drivers/net/fs_enet/Kconfig diff --git a/drivers/net/fs_enet/Makefile b/drivers/net/fs_enet/Makefile diff --git a/drivers/net/netx-eth.c b/drivers/net/netx-eth.c diff --git a/drivers/net/s2io.c b/drivers/net/s2io.c diff --git a/drivers/net/wireless/iwlwifi/iwl3945-base.c b/drivers/net/wireless/iwlwifi/iwl3945-base.c diff --git a/include/net/sock.h b/include/net/sock.h diff --git a/kernel/sysctl_check.c b/kernel/sysctl_check.c diff --git a/net/core/dev.c b/net/core/dev.c diff --git a/net/ipv4/route.c b/net/ipv4/route.c diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c diff --git a/net/sched/sch_generic.c b/net/sched/sch_generic.c Current state of the source tree is the 6f37ac... version, so I'll start backing out the above diffs in related groups and continue until I've got a working kernel. For lack of an obvious target, I'll start with the seemingly innocuous change to sysctl_check.c. I'll report back when I've got something. -- Bob Tracy | They couldn't hit an elephant at this dist- [EMAIL PROTECTED] | - Last words of Union General John Sedgwick, | Battle of Spotsylvania Court House, U.S. Civil War - To unsubscribe from this list: send the line unsubscribe linux-scsi in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html
Re: [BUG] 2.6.23-rc3 can't see sd partitions on Alpha
On Thu, 6 Dec 2007 23:07:08 -0600 (CST) [EMAIL PROTECTED] (Bob Tracy) wrote: Andrew Morton wrote: commit 6f37ac793d6ba7b35d338f791974166f67fdd9ba Merge: 2f1f53b... d90bf5a... Author: Linus Torvalds [EMAIL PROTECTED] Date: Wed Nov 14 18:51:48 2007 -0800 Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/n * 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6: [NET]: rt_check_expire() can take a long time, add a cond_resched() [ISDN] sc: Really, really fix warning [ISDN] sc: Fix sndpkt to have the correct number of arguments [TCP] FRTO: Clear frto_highmark only after process_frto that uses it [NET]: Remove notifier block from chain when register_netdevice_notifier f [FS_ENET]: Fix module build. [TCP]: Make sure write_queue_from does not begin with NULL ptr [TCP]: Fix size calculation in sk_stream_alloc_pskb [S2IO]: Fixed memory leak when MSI-X vector allocation fails [BONDING]: Fix resource use after free [SYSCTL]: Fix warning for token-ring from sysctl checker [NET] random : secure_tcp_sequence_number should not assume CONFIG_KTIME_S [IWLWIFI]: Not correctly dealing with hotunplug. [TCP] FRTO: Plug potential LOST-bit leak [TCP] FRTO: Limit snd_cwnd if TCP was application limited [E1000]: Fix schedule while atomic when called from mii-tool. [NETX]: Fix build failure added by 2.6.24 statistics cleanup. [EP93xx_ETH]: Build fix after 2.6.24 NAPI changes. [PKT_SCHED]: Check subqueue status before calling hard_start_xmit I'm struggling to see how any of those could have broken block device mounting on alpha. Are you sure you bisected right? Based on what's in that commit, it *does* appear something went wrong with bisection. If the implicated commit is the next one in time sequence relative to # good: [2f1f53bdc6531696934f6ee7bbdfa2ab4f4f62a3] CRISv10 fasttimer: Scrap INLINE and name timeval_cmp better then the test of whether I bisected correctly is as simple as applying the commit and seeing if things break, because I'm running on the kernel corresponding to 2f1f53bdc6531696934f6ee7bbdfa2ab4f4f62a3 right now. Let me give that a try and I'll report back. Worst case, I'll have to start over and write off the past four days... Gad. I trust the second time will be faster. git-bisect _is_ very error prone. I find one of the problems is that each step is so far apart in time that you forget what you were doing. Did I remember to test that iteration? Did I install the right kernel? etc. Sorry about this... Not appropriate ;) Thanks for helping out. - To unsubscribe from this list: send the line unsubscribe linux-scsi in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html
Re: [BUG] 2.6.23-rc3 can't see sd partitions on Alpha
On Fri, 2007-12-07 at 19:06 +0100, Ingo Molnar wrote:
* Bob Tracy [EMAIL PROTECTED] wrote:
Ingo Molnar wrote:
* Bob Tracy [EMAIL PROTECTED] wrote:
Current state of the source tree is the 6f37ac... version, so I'll
start backing out the above diffs in related groups and continue
until I've got a working kernel. For lack of an obvious target,
I'll start with the seemingly innocuous change to sysctl_check.c.
I'll report back when I've got something.
That was quick :-). Backing out the sysctl_check.c diff gives me a
working kernel. Beats the [EMAIL PROTECTED] out of me how/why, though.
Michael Cree: could you try backing out the diff below from your
2.6.24-rc3 tree and see if things are now working for you?
Here's uname -a, just to confirm (maybe) I'm running on what I say
works:
Linux smirkin 2.6.24-rc2-g6f37ac79-dirty #2 Fri Dec 7 08:03:12 CST 2007
alpha
Here's the diff I backed out (patch -R). It's short...
diff --git a/kernel/sysctl_check.c b/kernel/sysctl_check.c
index 5a2f2b2..4abc6d2 100644
--- a/kernel/sysctl_check.c
+++ b/kernel/sysctl_check.c
@@ -738,7 +738,7 @@ static struct trans_ctl_table trans_net_table[] = {
{ NET_ROSE, rose, trans_net_rose_table },
{ NET_IPV6, ipv6, trans_net_ipv6_table },
{ NET_X25, x25, trans_net_x25_table },
- { NET_TR, tr, trans_net_tr_table },
+ { NET_TR, token-ring, trans_net_tr_table },
{ NET_DECNET, decnet, trans_net_decnet_table
},
/* NET_ECONET not used */
{ NET_SCTP, sctp, trans_net_sctp_table },
reverting this makes the kernel image shorter by 8 bytes - so
perhaps some alignment issue somewhere? Or something gets overflown?
Does any of this get actually used by your bootup?
Dunno... The dmesg output is not terribly useful here, because most
of the interesting stuff concerning udev startup that appears on the
console never makes it into a log. Note that, for the bad cases, I
don't see the same console output that Michael reported, although the
net effect is the same: the partitions don't get found, so I'm offered
the chance to enter my root password and do some poking around, and
when I do, none of the block devices are present under /dev.
I'm open to suggestions on how to take this analysis further. Michael
indicated he's running a conference this week, so I don't know when
he'll be able to come up for air.
i'm not sure how to do direct debugging on udev, so i can only guess
about what effect on the kernel side could have caused this. One bad
hack would be to probe udevd's behavior by changing the NET_TR entry
in various ways:
tr - token-ring # breaks
tr - tr # works
tr - token-rin0 # ?(1)
tr - TR # ?(2)
the question is, does tweak (1) and tweak (2) work or break?
but it would be a lot more effective i guess to get some udevd expert's
attention on this ...
Could we get the output of:
ls -l /sys/block/sda/
and:
grep . /sys/block/sda/*/dev
?
Kay
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Re: [BUG] 2.6.23-rc3 can't see sd partitions on Alpha
* Bob Tracy [EMAIL PROTECTED] wrote:
Ingo Molnar wrote:
* Bob Tracy [EMAIL PROTECTED] wrote:
Current state of the source tree is the 6f37ac... version, so I'll
start backing out the above diffs in related groups and continue
until I've got a working kernel. For lack of an obvious target,
I'll start with the seemingly innocuous change to sysctl_check.c.
I'll report back when I've got something.
That was quick :-). Backing out the sysctl_check.c diff gives me a
working kernel. Beats the [EMAIL PROTECTED] out of me how/why, though.
Michael Cree: could you try backing out the diff below from your
2.6.24-rc3 tree and see if things are now working for you?
Here's uname -a, just to confirm (maybe) I'm running on what I say
works:
Linux smirkin 2.6.24-rc2-g6f37ac79-dirty #2 Fri Dec 7 08:03:12 CST 2007
alpha
Here's the diff I backed out (patch -R). It's short...
diff --git a/kernel/sysctl_check.c b/kernel/sysctl_check.c
index 5a2f2b2..4abc6d2 100644
--- a/kernel/sysctl_check.c
+++ b/kernel/sysctl_check.c
@@ -738,7 +738,7 @@ static struct trans_ctl_table trans_net_table[] = {
{ NET_ROSE, rose, trans_net_rose_table },
{ NET_IPV6, ipv6, trans_net_ipv6_table },
{ NET_X25, x25, trans_net_x25_table },
- { NET_TR, tr, trans_net_tr_table },
+ { NET_TR, token-ring, trans_net_tr_table },
{ NET_DECNET, decnet, trans_net_decnet_table },
/* NET_ECONET not used */
{ NET_SCTP, sctp, trans_net_sctp_table },
reverting this makes the kernel image shorter by 8 bytes - so
perhaps some alignment issue somewhere? Or something gets overflown?
Does any of this get actually used by your bootup?
Dunno... The dmesg output is not terribly useful here, because most
of the interesting stuff concerning udev startup that appears on the
console never makes it into a log. Note that, for the bad cases, I
don't see the same console output that Michael reported, although the
net effect is the same: the partitions don't get found, so I'm offered
the chance to enter my root password and do some poking around, and
when I do, none of the block devices are present under /dev.
I'm open to suggestions on how to take this analysis further. Michael
indicated he's running a conference this week, so I don't know when
he'll be able to come up for air.
i'm not sure how to do direct debugging on udev, so i can only guess
about what effect on the kernel side could have caused this. One bad
hack would be to probe udevd's behavior by changing the NET_TR entry
in various ways:
tr - token-ring # breaks
tr - tr # works
tr - token-rin0 # ?(1)
tr - TR # ?(2)
the question is, does tweak (1) and tweak (2) work or break?
but it would be a lot more effective i guess to get some udevd expert's
attention on this ...
Ingo
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Re: [BUG] 2.6.23-rc3 can't see sd partitions on Alpha
* Andrew Morton [EMAIL PROTECTED] wrote: then the test of whether I bisected correctly is as simple as applying the commit and seeing if things break, because I'm running on the kernel corresponding to 2f1f53bdc6531696934f6ee7bbdfa2ab4f4f62a3 right now. Let me give that a try and I'll report back. Worst case, I'll have to start over and write off the past four days... Gad. I trust the second time will be faster. git-bisect _is_ very error prone. I find one of the problems is that each step is so far apart in time that you forget what you were doing. Did I remember to test that iteration? Did I install the right kernel? etc. i have a fully automated bootup-hang bisection script. It is based on git-bisect run. I run the script, it builds and boots kernels fully automatically, and when the bootup fails (the script notices that via the serial log, which it continuously watches - or via a timeout, if the system does not come up within 10 minutes it's a bad kernel), the script raises my attention via a beep and i power cycle the test box. (yeah, i should make use of a managed power outlet to 100% automate it) So i dont have to a single manual decision anytime during the bisection. But the scripts are very much tied to my ad-hoc test environment so it would not be of much general use. Ingo - To unsubscribe from this list: send the line unsubscribe linux-scsi in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html
Re: [BUG] 2.6.23-rc3 can't see sd partitions on Alpha
Kay Sievers wrote: Is the udev daemon (still) running while it fails? Yes, and there's something else I forgot to mention that may be significant... For the bad case, in addition to udevd, ps -ef shows a sh -e /lib/udev/net.agent running with a PPID of 1. This process doesn't exit until I reboot. If this is normal under the circumstances, please disregard. -- Bob Tracy | They couldn't hit an elephant at this dist- [EMAIL PROTECTED] | - Last words of Union General John Sedgwick, | Battle of Spotsylvania Court House, U.S. Civil War - To unsubscribe from this list: send the line unsubscribe linux-scsi in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html
Re: [BUG] 2.6.23-rc3 can't see sd partitions on Alpha
Kay Sievers wrote: Yeah, that looks all fine. What distro is that, and what's the udev version? Mine is Debian Etch, normally with the latest released or -rcX kernel from kernel.org. Updates current as of about 18 hours ago. Udev package version is 0.105-4. The RELEASE-NOTES file in /usr/share/doc/udev says udev 105. You are booting your kernel with an initramfs? Not in my case: everything I need at boot time is built-in. Is the udev daemon (still) running while it fails? If you run /sbin/udevtrigger, do the nodes appear? I can answer the above later when I'm back in front of the machine, but even in the not good case, I still see the following messages from the /etc/rcS.d/S03udev file: Starting the hotplug events dispatcher udevd. Synthesizing the initial hotplug events. This is where udevtrigger gets called, followed by the load_input_modules and create_dev_makedev functions, then... Waiting for /dev to be fully populated. which is where udevsettle gets called. None of the above appear to be exiting abnormally for the bad case, but I'll definitely take a closer look at what MAKEDEV (/dev/MAKEDEV -- /sbin/MAKEDEV) is doing. In particular, Debian MAKEDEV is looking at /proc/devices to decide what to do, so maybe cat /proc/devices would be useful to look at for the broken case. -- Bob Tracy | They couldn't hit an elephant at this dist- [EMAIL PROTECTED] | - Last words of Union General John Sedgwick, | Battle of Spotsylvania Court House, U.S. Civil War - To unsubscribe from this list: send the line unsubscribe linux-scsi in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html
Re: [BUG] 2.6.23-rc3 can't see sd partitions on Alpha
Bob Tracy wrote: That was quick :-). Backing out the sysctl_check.c diff gives me a working kernel. Beats the [EMAIL PROTECTED] out of me how/why, though. Michael Cree: could you try backing out the diff below from your 2.6.24-rc3 tree and see if things are now working for you? Yes (conference is now over). I backed out the sysctl_check patch from 2.6.24-rc3 and, indeed, got a working kernel. The working kernel (was probably 2.6.24-rc3 less sysctl_check patch, but might have been a 2.6.23 variant) has the following in /sys/block alpha:~# ls -l /sys/block/ total 0 drwxr-xr-x 5 root root 0 2007-12-08 08:55 fd0 drwxr-xr-x 6 root root 0 2007-12-08 08:55 hde drwxr-xr-x 5 root root 0 2007-12-08 08:55 hdf drwxr-xr-x 10 root root 0 2007-12-08 08:55 sda drwxr-xr-x 9 root root 0 2007-12-08 08:55 sdb alpha:~# ls -l /sys/block/sda total 0 -r--r--r-- 1 root root 8192 2007-12-08 08:55 capability -r--r--r-- 1 root root 8192 2007-12-08 08:55 dev lrwxrwxrwx 1 root root0 2007-12-08 08:55 device - ../../devices/pci0001:01/0001:01:06.0/host0/target0:0:1/0:0:1:0 drwxr-xr-x 2 root root0 2007-12-08 08:55 holders drwxr-xr-x 3 root root0 2007-12-08 08:55 queue -r--r--r-- 1 root root 8192 2007-12-08 08:55 range -r--r--r-- 1 root root 8192 2007-12-08 08:55 removable drwxr-xr-x 3 root root0 2007-12-08 08:55 sda1 drwxr-xr-x 3 root root0 2007-12-08 08:55 sda2 drwxr-xr-x 3 root root0 2007-12-08 08:55 sda3 drwxr-xr-x 3 root root0 2007-12-08 08:55 sda4 drwxr-xr-x 3 root root0 2007-12-08 08:55 sda5 -r--r--r-- 1 root root 8192 2007-12-08 08:55 size drwxr-xr-x 2 root root0 2007-12-08 08:55 slaves -r--r--r-- 1 root root 8192 2007-12-08 08:55 stat lrwxrwxrwx 1 root root0 2007-12-08 08:55 subsystem - ../../block --w--- 1 root root 8192 2007-12-08 08:55 uevent alpha:~# grep . /sys/block/sda/*/dev /sys/block/sda/sda1/dev:8:1 /sys/block/sda/sda2/dev:8:2 /sys/block/sda/sda3/dev:8:3 /sys/block/sda/sda4/dev:8:4 /sys/block/sda/sda5/dev:8:5 The broken kernel (2.6.24-rc3) has the following in /sys/block alpha:~# ls -l /sys/block/ total 0 drwxr-xr-x 5 root root 0 Dec 8 09:22 fd0 drwxr-xr-x 6 root root 0 Dec 8 09:22 hde drwxr-xr-x 5 root root 0 Dec 8 09:23 hdf drwxr-xr-x 10 root root 0 Dec 8 09:22 sda drwxr-xr-x 9 root root 0 Dec 8 09:23 sdb alpha:~# ls -l /sys/block/sda total 0 -r--r--r-- 1 root root 8192 Dec 8 09:22 capability -r--r--r-- 1 root root 8192 Dec 8 09:22 dev lrwxrwxrwx 1 root root0 Dec 8 09:23 device - ../../devices/pci0001:01/0001:01:06.0/host0/target0:0:1/0:0:1:0 drwxr-xr-x 2 root root0 Dec 8 09:22 holders drwxr-xr-x 3 root root0 Dec 8 09:22 queue -r--r--r-- 1 root root 8192 Dec 8 09:22 range -r--r--r-- 1 root root 8192 Dec 8 09:22 removable drwxr-xr-x 3 root root0 Dec 8 09:22 sda1 drwxr-xr-x 3 root root0 Dec 8 09:22 sda2 drwxr-xr-x 3 root root0 Dec 8 09:22 sda3 drwxr-xr-x 3 root root0 Dec 8 09:22 sda4 drwxr-xr-x 3 root root0 Dec 8 09:22 sda5 -r--r--r-- 1 root root 8192 Dec 8 09:22 size drwxr-xr-x 2 root root0 Dec 8 09:22 slaves -r--r--r-- 1 root root 8192 Dec 8 09:22 stat lrwxrwxrwx 1 root root0 Dec 8 09:22 subsystem - ../../block --w--- 1 root root 8192 Dec 8 09:22 uevent alpha:~# grep . /sys/block/sda/*/dev /sys/block/sda/sda1/dev:8:1 /sys/block/sda/sda2/dev:8:2 /sys/block/sda/sda3/dev:8:3 /sys/block/sda/sda4/dev:8:4 /sys/block/sda/sda5/dev:8:5 I failed to spot any difference (other than the formatting of the dates) between the two! Cheers Michael. - To unsubscribe from this list: send the line unsubscribe linux-scsi in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html
Re: [BUG] 2.6.23-rc3 can't see sd partitions on Alpha
Kay Sievers wrote: On Fri, 2007-12-07 at 19:06 +0100, Ingo Molnar wrote: i'm not sure how to do direct debugging on udev, so i can only guess about what effect on the kernel side could have caused this. One bad hack would be to probe udevd's behavior by changing the NET_TR entry in various ways: tr - token-ring # breaks tr - tr # works tr - token-rin0 # ?(1) tr - TR # ?(2) the question is, does tweak (1) and tweak (2) work or break? but it would be a lot more effective i guess to get some udevd expert's attention on this ... Could we get the output of: ls -l /sys/block/sda/ and: grep . /sys/block/sda/*/dev ? Here are the requested items for the 2.6.24-rc2-g6f37ac79-dirty kernel (the working one with the sysctl_check.c patch reverted): smirkin:/# ls -l /sys/block/sda total 0 -r--r--r-- 1 root root 8192 Dec 7 08:36 capability -r--r--r-- 1 root root 8192 Dec 7 08:36 dev lrwxrwxrwx 1 root root0 Dec 7 08:36 device - ../../devices/pci:00/:00:14.0/:01:09.0/host0/target0:0:0/0:0:0:0 drwxr-xr-x 2 root root0 Dec 7 08:36 holders drwxr-xr-x 3 root root0 Dec 7 08:36 queue -r--r--r-- 1 root root 8192 Dec 7 08:36 range -r--r--r-- 1 root root 8192 Dec 7 08:36 removable drwxr-xr-x 3 root root0 Dec 7 08:36 sda1 drwxr-xr-x 3 root root0 Dec 7 08:36 sda2 drwxr-xr-x 3 root root0 Dec 7 08:36 sda3 drwxr-xr-x 3 root root0 Dec 7 08:36 sda4 drwxr-xr-x 3 root root0 Dec 7 08:36 sda5 drwxr-xr-x 3 root root0 Dec 7 08:36 sda6 drwxr-xr-x 3 root root0 Dec 7 08:36 sda7 -r--r--r-- 1 root root 8192 Dec 7 08:36 size drwxr-xr-x 2 root root0 Dec 7 08:36 slaves -r--r--r-- 1 root root 8192 Dec 7 08:36 stat lrwxrwxrwx 1 root root0 Dec 7 08:36 subsystem - ../../block --w--- 1 root root 8192 Dec 7 08:36 uevent smirkin:/# grep . /sys/block/sda/*/dev /sys/block/sda/sda1/dev:8:1 /sys/block/sda/sda2/dev:8:2 /sys/block/sda/sda3/dev:8:3 /sys/block/sda/sda4/dev:8:4 /sys/block/sda/sda5/dev:8:5 /sys/block/sda/sda6/dev:8:6 /sys/block/sda/sda7/dev:8:7 Assuming /sys/block even exists for the non-working case, I'll forward that info in a few hours when I can get home to reboot the machine. -- Bob Tracy | They couldn't hit an elephant at this dist- [EMAIL PROTECTED] | - Last words of Union General John Sedgwick, | Battle of Spotsylvania Court House, U.S. Civil War - To unsubscribe from this list: send the line unsubscribe linux-scsi in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html
Re: [BUG] 2.6.23-rc3 can't see sd partitions on Alpha
Kay Sievers wrote: Is the udev daemon (still) running while it fails? Yes. If you run /sbin/udevtrigger, do the nodes appear? No. Exit status is 0, and there are no errors. Everything looks fine under /sys/block, and there doesn't seem to be a problem with /proc/devices either. -- Bob Tracy | They couldn't hit an elephant at this dist- [EMAIL PROTECTED] | - Last words of Union General John Sedgwick, | Battle of Spotsylvania Court House, U.S. Civil War - To unsubscribe from this list: send the line unsubscribe linux-scsi in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html
Re: [BUG] 2.6.23-rc3 can't see sd partitions on Alpha
On Sat, 2007-12-08 at 09:43 +1300, Michael Cree wrote: Bob Tracy wrote: That was quick :-). Backing out the sysctl_check.c diff gives me a working kernel. Beats the [EMAIL PROTECTED] out of me how/why, though. Michael Cree: could you try backing out the diff below from your 2.6.24-rc3 tree and see if things are now working for you? Yes (conference is now over). I backed out the sysctl_check patch from 2.6.24-rc3 and, indeed, got a working kernel. The working kernel (was probably 2.6.24-rc3 less sysctl_check patch, but might have been a 2.6.23 variant) has the following in /sys/block alpha:~# grep . /sys/block/sda/*/dev /sys/block/sda/sda1/dev:8:1 /sys/block/sda/sda2/dev:8:2 /sys/block/sda/sda3/dev:8:3 /sys/block/sda/sda4/dev:8:4 /sys/block/sda/sda5/dev:8:5 I failed to spot any difference (other than the formatting of the dates) between the two! Yeah, that looks all fine. What distro is that, and what's the udev version? You are booting your kernel with an initramfs? Is the udev daemon (still) running while it fails? If you run /sbin/udevtrigger, do the nodes appear? Kay - To unsubscribe from this list: send the line unsubscribe linux-scsi in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html
Re: [BUG] 2.6.23-rc3 can't see sd partitions on Alpha
Ingo Molnar wrote:
* Bob Tracy [EMAIL PROTECTED] wrote:
Current state of the source tree is the 6f37ac... version, so I'll
start backing out the above diffs in related groups and continue
until I've got a working kernel. For lack of an obvious target,
I'll start with the seemingly innocuous change to sysctl_check.c.
I'll report back when I've got something.
That was quick :-). Backing out the sysctl_check.c diff gives me a
working kernel. Beats the [EMAIL PROTECTED] out of me how/why, though.
Michael Cree: could you try backing out the diff below from your
2.6.24-rc3 tree and see if things are now working for you?
Here's uname -a, just to confirm (maybe) I'm running on what I say
works:
Linux smirkin 2.6.24-rc2-g6f37ac79-dirty #2 Fri Dec 7 08:03:12 CST 2007
alpha
Here's the diff I backed out (patch -R). It's short...
diff --git a/kernel/sysctl_check.c b/kernel/sysctl_check.c
index 5a2f2b2..4abc6d2 100644
--- a/kernel/sysctl_check.c
+++ b/kernel/sysctl_check.c
@@ -738,7 +738,7 @@ static struct trans_ctl_table trans_net_table[] = {
{ NET_ROSE, rose, trans_net_rose_table },
{ NET_IPV6, ipv6, trans_net_ipv6_table },
{ NET_X25, x25, trans_net_x25_table },
- { NET_TR, tr, trans_net_tr_table },
+ { NET_TR, token-ring, trans_net_tr_table },
{ NET_DECNET, decnet, trans_net_decnet_table },
/* NET_ECONET not used */
{ NET_SCTP, sctp, trans_net_sctp_table },
reverting this makes the kernel image shorter by 8 bytes - so perhaps
some alignment issue somewhere? Or something gets overflown? Does any of
this get actually used by your bootup?
Dunno... The dmesg output is not terribly useful here, because most of
the interesting stuff concerning udev startup that appears on the
console never makes it into a log. Note that, for the bad cases, I
don't see the same console output that Michael reported, although the
net effect is the same: the partitions don't get found, so I'm offered
the chance to enter my root password and do some poking around, and
when I do, none of the block devices are present under /dev.
I'm open to suggestions on how to take this analysis further. Michael
indicated he's running a conference this week, so I don't know when he'll
be able to come up for air.
--
Bob Tracy | They couldn't hit an elephant at this dist-
[EMAIL PROTECTED] | - Last words of Union General John Sedgwick,
| Battle of Spotsylvania Court House, U.S. Civil War
-
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Re: [BUG] 2.6.23-rc3 can't see sd partitions on Alpha
On Thu, 6 Dec 2007 18:16:12 -0600 (CST) [EMAIL PROTECTED] (Bob Tracy) wrote: OK. Finally have this thing painted into a corner: git has identified 6f37ac793d6ba7b35d338f791974166f67fdd9ba as the first bad commit. From git bisect log, this corresponds to # bad: [6f37ac793d6ba7b35d338f791974166f67fdd9ba] Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 Here's the full log: git-bisect start # good: [9aae299f7fd1888ea3a195cfe0edef17bb647415] Linux 2.6.24-rc2 git-bisect good 9aae299f7fd1888ea3a195cfe0edef17bb647415 # bad: [f05092637dc0d9a3f2249c9b283b973e6e96b7d2] Linux 2.6.24-rc3 git-bisect bad f05092637dc0d9a3f2249c9b283b973e6e96b7d2 # good: [e6a5c27f3b0fef72e528fc35e343af4b2db790ff] Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/avi/kvm git-bisect good e6a5c27f3b0fef72e528fc35e343af4b2db790ff # good: [42614fcde7bfdcbe43a7b17035c167dfebc354dd] vmstat: fix section mismatch warning git-bisect good 42614fcde7bfdcbe43a7b17035c167dfebc354dd # bad: [a052f4473603765eb6b4c19754689977601dc1d1] Merge git://git.kernel.org/pub/scm/linux/kernel/git/sam/x86 git-bisect bad a052f4473603765eb6b4c19754689977601dc1d1 # good: [d8e5219f9f5ca7518eb820db9f3d287a1d46fcf5] CRISv10 improve and bugfix fasttimer git-bisect good d8e5219f9f5ca7518eb820db9f3d287a1d46fcf5 # good: [d90bf5a976793edfa88d3bb2393f0231eb8ce1e5] [NET]: rt_check_expire() can take a long time, add a cond_resched() git-bisect good d90bf5a976793edfa88d3bb2393f0231eb8ce1e5 # good: [2a113281f5cd2febbab21a93c8943f8d3eece4d3] kconfig: use $K64BIT to set 64BIT with all*config targets git-bisect good 2a113281f5cd2febbab21a93c8943f8d3eece4d3 # good: [2e2cd8bad6e03ceea73495ee6d557044213d95de] CRISv10 memset library add lineendings to asm git-bisect good 2e2cd8bad6e03ceea73495ee6d557044213d95de # bad: [6f37ac793d6ba7b35d338f791974166f67fdd9ba] Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 git-bisect bad 6f37ac793d6ba7b35d338f791974166f67fdd9ba # good: [2f1f53bdc6531696934f6ee7bbdfa2ab4f4f62a3] CRISv10 fasttimer: Scrap INLINE and name timeval_cmp better git-bisect good 2f1f53bdc6531696934f6ee7bbdfa2ab4f4f62a3 commit 6f37ac793d6ba7b35d338f791974166f67fdd9ba Merge: 2f1f53b... d90bf5a... Author: Linus Torvalds [EMAIL PROTECTED] Date: Wed Nov 14 18:51:48 2007 -0800 Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/n * 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6: [NET]: rt_check_expire() can take a long time, add a cond_resched() [ISDN] sc: Really, really fix warning [ISDN] sc: Fix sndpkt to have the correct number of arguments [TCP] FRTO: Clear frto_highmark only after process_frto that uses it [NET]: Remove notifier block from chain when register_netdevice_notifier f [FS_ENET]: Fix module build. [TCP]: Make sure write_queue_from does not begin with NULL ptr [TCP]: Fix size calculation in sk_stream_alloc_pskb [S2IO]: Fixed memory leak when MSI-X vector allocation fails [BONDING]: Fix resource use after free [SYSCTL]: Fix warning for token-ring from sysctl checker [NET] random : secure_tcp_sequence_number should not assume CONFIG_KTIME_S [IWLWIFI]: Not correctly dealing with hotunplug. [TCP] FRTO: Plug potential LOST-bit leak [TCP] FRTO: Limit snd_cwnd if TCP was application limited [E1000]: Fix schedule while atomic when called from mii-tool. [NETX]: Fix build failure added by 2.6.24 statistics cleanup. [EP93xx_ETH]: Build fix after 2.6.24 NAPI changes. [PKT_SCHED]: Check subqueue status before calling hard_start_xmit I'm struggling to see how any of those could have broken block device mounting on alpha. Are you sure you bisected right? - To unsubscribe from this list: send the line unsubscribe linux-scsi in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html
Re: [BUG] 2.6.23-rc3 can't see sd partitions on Alpha
On Friday, 7 of December 2007, Bob Tracy wrote: OK. Finally have this thing painted into a corner: git has identified 6f37ac793d6ba7b35d338f791974166f67fdd9ba as the first bad commit. From git bisect log, this corresponds to # bad: [6f37ac793d6ba7b35d338f791974166f67fdd9ba] Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 Something's gone wrong, as this commit doesn't modify code. Here's the full log: git-bisect start # good: [9aae299f7fd1888ea3a195cfe0edef17bb647415] Linux 2.6.24-rc2 git-bisect good 9aae299f7fd1888ea3a195cfe0edef17bb647415 # bad: [f05092637dc0d9a3f2249c9b283b973e6e96b7d2] Linux 2.6.24-rc3 git-bisect bad f05092637dc0d9a3f2249c9b283b973e6e96b7d2 # good: [e6a5c27f3b0fef72e528fc35e343af4b2db790ff] Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/avi/kvm git-bisect good e6a5c27f3b0fef72e528fc35e343af4b2db790ff # good: [42614fcde7bfdcbe43a7b17035c167dfebc354dd] vmstat: fix section mismatch warning git-bisect good 42614fcde7bfdcbe43a7b17035c167dfebc354dd # bad: [a052f4473603765eb6b4c19754689977601dc1d1] Merge git://git.kernel.org/pub/scm/linux/kernel/git/sam/x86 git-bisect bad a052f4473603765eb6b4c19754689977601dc1d1 # good: [d8e5219f9f5ca7518eb820db9f3d287a1d46fcf5] CRISv10 improve and bugfix fasttimer git-bisect good d8e5219f9f5ca7518eb820db9f3d287a1d46fcf5 # good: [d90bf5a976793edfa88d3bb2393f0231eb8ce1e5] [NET]: rt_check_expire() can take a long time, add a cond_resched() git-bisect good d90bf5a976793edfa88d3bb2393f0231eb8ce1e5 # good: [2a113281f5cd2febbab21a93c8943f8d3eece4d3] kconfig: use $K64BIT to set 64BIT with all*config targets git-bisect good 2a113281f5cd2febbab21a93c8943f8d3eece4d3 # good: [2e2cd8bad6e03ceea73495ee6d557044213d95de] CRISv10 memset library add lineendings to asm git-bisect good 2e2cd8bad6e03ceea73495ee6d557044213d95de # bad: [6f37ac793d6ba7b35d338f791974166f67fdd9ba] Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 git-bisect bad 6f37ac793d6ba7b35d338f791974166f67fdd9ba # good: [2f1f53bdc6531696934f6ee7bbdfa2ab4f4f62a3] CRISv10 fasttimer: Scrap INLINE and name timeval_cmp better git-bisect good 2f1f53bdc6531696934f6ee7bbdfa2ab4f4f62a3 - To unsubscribe from this list: send the line unsubscribe linux-scsi in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html
Re: [BUG] 2.6.23-rc3 can't see sd partitions on Alpha
OK. Finally have this thing painted into a corner: git has identified 6f37ac793d6ba7b35d338f791974166f67fdd9ba as the first bad commit. From git bisect log, this corresponds to # bad: [6f37ac793d6ba7b35d338f791974166f67fdd9ba] Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 Here's the full log: git-bisect start # good: [9aae299f7fd1888ea3a195cfe0edef17bb647415] Linux 2.6.24-rc2 git-bisect good 9aae299f7fd1888ea3a195cfe0edef17bb647415 # bad: [f05092637dc0d9a3f2249c9b283b973e6e96b7d2] Linux 2.6.24-rc3 git-bisect bad f05092637dc0d9a3f2249c9b283b973e6e96b7d2 # good: [e6a5c27f3b0fef72e528fc35e343af4b2db790ff] Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/avi/kvm git-bisect good e6a5c27f3b0fef72e528fc35e343af4b2db790ff # good: [42614fcde7bfdcbe43a7b17035c167dfebc354dd] vmstat: fix section mismatch warning git-bisect good 42614fcde7bfdcbe43a7b17035c167dfebc354dd # bad: [a052f4473603765eb6b4c19754689977601dc1d1] Merge git://git.kernel.org/pub/scm/linux/kernel/git/sam/x86 git-bisect bad a052f4473603765eb6b4c19754689977601dc1d1 # good: [d8e5219f9f5ca7518eb820db9f3d287a1d46fcf5] CRISv10 improve and bugfix fasttimer git-bisect good d8e5219f9f5ca7518eb820db9f3d287a1d46fcf5 # good: [d90bf5a976793edfa88d3bb2393f0231eb8ce1e5] [NET]: rt_check_expire() can take a long time, add a cond_resched() git-bisect good d90bf5a976793edfa88d3bb2393f0231eb8ce1e5 # good: [2a113281f5cd2febbab21a93c8943f8d3eece4d3] kconfig: use $K64BIT to set 64BIT with all*config targets git-bisect good 2a113281f5cd2febbab21a93c8943f8d3eece4d3 # good: [2e2cd8bad6e03ceea73495ee6d557044213d95de] CRISv10 memset library add lineendings to asm git-bisect good 2e2cd8bad6e03ceea73495ee6d557044213d95de # bad: [6f37ac793d6ba7b35d338f791974166f67fdd9ba] Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 git-bisect bad 6f37ac793d6ba7b35d338f791974166f67fdd9ba # good: [2f1f53bdc6531696934f6ee7bbdfa2ab4f4f62a3] CRISv10 fasttimer: Scrap INLINE and name timeval_cmp better git-bisect good 2f1f53bdc6531696934f6ee7bbdfa2ab4f4f62a3 -- Bob Tracy | They couldn't hit an elephant at this dist- [EMAIL PROTECTED] | - Last words of Union General John Sedgwick, | Battle of Spotsylvania Court House, U.S. Civil War - To unsubscribe from this list: send the line unsubscribe linux-scsi in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html
Re: [BUG] 2.6.23-rc3 can't see sd partitions on Alpha
Andrew Morton wrote: commit 6f37ac793d6ba7b35d338f791974166f67fdd9ba Merge: 2f1f53b... d90bf5a... Author: Linus Torvalds [EMAIL PROTECTED] Date: Wed Nov 14 18:51:48 2007 -0800 Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/n * 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6: [NET]: rt_check_expire() can take a long time, add a cond_resched() [ISDN] sc: Really, really fix warning [ISDN] sc: Fix sndpkt to have the correct number of arguments [TCP] FRTO: Clear frto_highmark only after process_frto that uses it [NET]: Remove notifier block from chain when register_netdevice_notifier f [FS_ENET]: Fix module build. [TCP]: Make sure write_queue_from does not begin with NULL ptr [TCP]: Fix size calculation in sk_stream_alloc_pskb [S2IO]: Fixed memory leak when MSI-X vector allocation fails [BONDING]: Fix resource use after free [SYSCTL]: Fix warning for token-ring from sysctl checker [NET] random : secure_tcp_sequence_number should not assume CONFIG_KTIME_S [IWLWIFI]: Not correctly dealing with hotunplug. [TCP] FRTO: Plug potential LOST-bit leak [TCP] FRTO: Limit snd_cwnd if TCP was application limited [E1000]: Fix schedule while atomic when called from mii-tool. [NETX]: Fix build failure added by 2.6.24 statistics cleanup. [EP93xx_ETH]: Build fix after 2.6.24 NAPI changes. [PKT_SCHED]: Check subqueue status before calling hard_start_xmit I'm struggling to see how any of those could have broken block device mounting on alpha. Are you sure you bisected right? Based on what's in that commit, it *does* appear something went wrong with bisection. If the implicated commit is the next one in time sequence relative to # good: [2f1f53bdc6531696934f6ee7bbdfa2ab4f4f62a3] CRISv10 fasttimer: Scrap INLINE and name timeval_cmp better then the test of whether I bisected correctly is as simple as applying the commit and seeing if things break, because I'm running on the kernel corresponding to 2f1f53bdc6531696934f6ee7bbdfa2ab4f4f62a3 right now. Let me give that a try and I'll report back. Worst case, I'll have to start over and write off the past four days... Sorry about this... -- Bob Tracy | They couldn't hit an elephant at this dist- [EMAIL PROTECTED] | - Last words of Union General John Sedgwick, | Battle of Spotsylvania Court House, U.S. Civil War - To unsubscribe from this list: send the line unsubscribe linux-scsi in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html
Re: [BUG] 2.6.23-rc3 can't see sd partitions on Alpha
I wrote: If the implicated commit is the next one in time sequence relative to # good: [2f1f53bdc6531696934f6ee7bbdfa2ab4f4f62a3] CRISv10 fasttimer: Scrap INLINE and name timeval_cmp better then the test of whether I bisected correctly is as simple as applying the commit and seeing if things break, because I'm running on the kernel corresponding to 2f1f53bdc6531696934f6ee7bbdfa2ab4f4f62a3 right now. Let me give that a try and I'll report back. Verified that 6f37ac793d6ba7b35d338f791974166f67fdd9ba is the next commit after the good kernel I'm running now. The build is running, and I should have an answer for us in a few hours. -- Bob Tracy | They couldn't hit an elephant at this dist- [EMAIL PROTECTED] | - Last words of Union General John Sedgwick, | Battle of Spotsylvania Court House, U.S. Civil War - To unsubscribe from this list: send the line unsubscribe linux-scsi in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html
Re: [BUG] 2.6.23-rc3 can't see sd partitions on Alpha
Current progress: 11 revisions left to test. The current partial git bisect log is available per Ingo's suggestion on bugzilla. http://bugzilla.kernel.org/show_bug.cgi?id=9457 -- Bob Tracy | They couldn't hit an elephant at this dist- [EMAIL PROTECTED] | - Last words of Union General John Sedgwick, | Battle of Spotsylvania Court House, U.S. Civil War - To unsubscribe from this list: send the line unsubscribe linux-scsi in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html
Re: [BUG] 2.6.23-rc3 can't see sd partitions on Alpha
* Bob Tracy [EMAIL PROTECTED] wrote: Finally got back in town. Starting the git-bisect process. I've got a relatively slow network connection, and the PWS 433au isn't exactly what I would call fast by modern standards, so bear with me while I get things set up and crank through this. The clone of the 2.6 tree will take several more hours to finish downloading. I anticipate the best pace I'll be able to manage after that is two iterations in a 24- hour period. once you are done with the download of the initial cloned git repository (which is 200MB+), all the bisection steps will be local and you'll be only limited by kernel rebuild speed and by bootup and testing speed, not by network bandwidth. ( once you have the cloned repository i'd suggest for you to keep it - that way you can track susequent kernels via git-pull and it uses a very network-efficient delta protocol. ) Ingo - To unsubscribe from this list: send the line unsubscribe linux-scsi in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html
Re: [BUG] 2.6.23-rc3 can't see sd partitions on Alpha
Ingo Molnar wrote: once you are done with the download of the initial cloned git repository (which is 200MB+), all the bisection steps will be local and you'll be only limited by kernel rebuild speed and by bootup and testing speed, not by network bandwidth. ACK. Have tested two kernels in the past 24 hours, and the third is building as I type this. The builds seem to be taking about 3 hours each. First two tests good, so the offending commit is somewhere in the last 25% (roughly) of the changes between -rc2 and -rc3: git says 82 revisions left to test. Might have this painted into a corner in the next day or so. I'll try to be quick about it, since -rc4 is out. ( once you have the cloned repository i'd suggest for you to keep it - that way you can track susequent kernels via git-pull and it uses a very network-efficient delta protocol. ) Will do... I'm in the fortunate position of having enough disk space on my Alpha that I can maintain multiple trees for this kind of effort. -- Bob Tracy | They couldn't hit an elephant at this dist- [EMAIL PROTECTED] | - Last words of Union General John Sedgwick, | Battle of Spotsylvania Court House, U.S. Civil War - To unsubscribe from this list: send the line unsubscribe linux-scsi in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html
Re: [BUG] 2.6.23-rc3 can't see sd partitions on Alpha
On 1/12/2007, at 11:42 AM, Andrew Morton wrote: On Sat, 01 Dec 2007 11:30:01 +1300 Michael Cree [EMAIL PROTECTED] wrote: Bob Tracy wrote: Andrew Morton wrote: Could be something change in sysfs. Please double-check the config options, make sure that something important didn't get disabled. Here's hoping someone else is seeing this or can replicate it in the meantime. Snap. 2.6.24-rc2 works fine. 2.6.24-rc3 boots on Alpha but once /dev is populated no partitions of the scsi sub-system are seen. Looks like ide sub-system similarly affected. [snip] eth0: Digital DS21142/43 Tulip rev 65 at Port 0x29400, 08:00:2b:87:4c:b0, IRQ 45. Linux video capture interface: v2.00 scsi_id[402]: scsi_id: unable to access '/block' I guess this is where things go bad. Yes, that is what I thought too. scsi_id is part of udev. Perhaps some sysfs nodes aren't being created correctly. Random guess: what is your setting of CONFIG_SCSI_SCAN_ASYNC and what happens if you invert it? Is set to Y. Changed it to N and recompiled kernel and restarted. No change. Same problems remain. I now realise that not only SCSI drive device nodes are not appearing in /dev, but all disc nodes are not appearing. In my case all of fd0, hde (IDE disc), hdf (CD/DVD), sda (SCSI disc), sdb (SATA disc), sdc (memory card reader), and their accompanying partition nodes, do not get made in /dev. I'm not familiar with sysfs so don't know what what I should be looking for in particular, but I did have a quick noisy around /sys and noted that the above mentioned devices are all appearing at /sys/ block with what appeared to be sensible information in the subdirectories thereof. Sorry, but it is unlikely that I'll be able to look further into this problem at the moment as I am running a conference this week and the storm is about to hit... Cheers Michael. - To unsubscribe from this list: send the line unsubscribe linux-scsi in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html
Re: [BUG] 2.6.23-rc3 can't see sd partitions on Alpha
Michael Cree wrote: On 1/12/2007, at 11:42 AM, Andrew Morton wrote: On Sat, 01 Dec 2007 11:30:01 +1300 Michael Cree [EMAIL PROTECTED] wrote: Bob Tracy wrote: Here's hoping someone else is seeing this or can replicate it in the meantime. Snap. 2.6.24-rc2 works fine. 2.6.24-rc3 boots on Alpha but once /dev is populated no partitions of the scsi sub-system are seen. Looks like ide sub-system similarly affected. [snip] eth0: Digital DS21142/43 Tulip rev 65 at Port 0x29400, 08:00:2b:87:4c:b0, IRQ 45. Linux video capture interface: v2.00 scsi_id[402]: scsi_id: unable to access '/block' I guess this is where things go bad. Yes, that is what I thought too. Thanks for the confirmation of the error condition. As best I can recall, your boot log is substantially the same as what I saw. Finally got back in town. Starting the git-bisect process. I've got a relatively slow network connection, and the PWS 433au isn't exactly what I would call fast by modern standards, so bear with me while I get things set up and crank through this. The clone of the 2.6 tree will take several more hours to finish downloading. I anticipate the best pace I'll be able to manage after that is two iterations in a 24- hour period. -- Bob Tracy | They couldn't hit an elephant at this dist- [EMAIL PROTECTED] | - Last words of Union General John Sedgwick, | Battle of Spotsylvania Court House, U.S. Civil War - To unsubscribe from this list: send the line unsubscribe linux-scsi in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html
Re: [BUG] 2.6.23-rc3 can't see sd partitions on Alpha
On Sat, 01 Dec 2007 11:30:01 +1300 Michael Cree [EMAIL PROTECTED] wrote: Bob Tracy wrote: Andrew Morton wrote: Could be something change in sysfs. Please double-check the config options, make sure that something important didn't get disabled. Here's hoping someone else is seeing this or can replicate it in the meantime. Snap. 2.6.24-rc2 works fine. 2.6.24-rc3 boots on Alpha but once /dev is populated no partitions of the scsi sub-system are seen. Looks like ide sub-system similarly affected. Rafael, I assume you have this regression in the list? Managed to get boot log. Follows below (with output of various /proc info). Cheerz Michael. Linux version 2.6.24-rc3 ([EMAIL PROTECTED]) (gcc version 4.1.3 20071019 (prerelease) (Debian 4.1.2-17)) #1 Mon Nov 26 19:28:58 NZDT 2007 Booting on Tsunami variation Monet using machine vector Monet from SRM Major Options: EV67 LEGACY_START VERBOSE_MCHECK Command line: ro root=/dev/sda3 console=ttyS0 memcluster 0, usage 1, start0, end 215 memcluster 1, usage 0, start 215, end 131062 memcluster 2, usage 1, start 131062, end 131072 freeing pages 215:384 freeing pages 930:131062 reserving pages 930:932 4096K Bcache detected; load hit latency 21 cycles, load miss latency 127 cycles Console graphics on hose 0 Built 1 zonelists in Zone order, mobility grouping on. Total pages: 130167 Kernel command line: ro root=/dev/sda3 console=ttyS0 PID hash table entries: 4096 (order: 12, 32768 bytes) Using epoch = 2000 Turning on RTC interrupts. Console: colour VGA+ 80x25 console [ttyS0] enabled Dentry cache hash table entries: 131072 (order: 7, 1048576 bytes) Inode-cache hash table entries: 65536 (order: 6, 524288 bytes) Memory: 1030896k/1048496k available (2786k kernel code, 15216k reserved, 370k data, 168k init) Mount-cache hash table entries: 512 net_namespace: 120 bytes NET: Registered protocol family 16 PCI: Bridge: 0001:01:08.0 IO window: 8000-8fff MEM window: 0900-090f PREFETCH window: disabled. SMC37c669 Super I/O Controller found @ 0x3f0 Linux Plug and Play Support v0.97 (c) Adam Belay SCSI subsystem initialized NET: Registered protocol family 2 IP route cache hash table entries: 8192 (order: 3, 65536 bytes) TCP established hash table entries: 32768 (order: 6, 524288 bytes) TCP bind hash table entries: 32768 (order: 5, 262144 bytes) TCP: Hash tables configured (established 32768 bind 32768) TCP reno registered srm_env: version 0.0.6 loaded successfully io scheduler noop registered io scheduler cfq registered (default) tridentfb: Trident framebuffer 0.7.8-NEWAPI initializing isapnp: Scanning for PnP cards... isapnp: No Plug Play device found rtc: SRM (post-2000) epoch (2000) detected Real Time Clock Driver v1.12ac Serial: 8250/16550 driver $Revision: 1.90 $ 4 ports, IRQ sharing enabled serial8250: ttyS0 at I/O 0x3f8 (irq = 4) is a 16550A serial8250: ttyS1 at I/O 0x2f8 (irq = 3) is a 16550A Floppy drive(s): fd0 is 2.88M FDC 0 is a post-1991 82077 Uniform Multi-Platform E-IDE driver Revision: 7.00alpha2 ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx CY82C693: IDE controller (0x1080:0xc693 rev 0x00) at PCI slot :00:07.1 CY82C693: not 100% native mode: will probe irqs later CY82C693U driver v0.34 99-13-12 Andreas S. Krebs ([EMAIL PROTECTED]) ide0: BM-DMA at 0x8400-0x8407, BIOS settings: hda:pio, hdb:pio CY82C693: port 0x01f0 already claimed by ide0 ALI15X3: IDE controller (0x10b9:0x5228 rev 0xc6) at PCI slot 0001:02:09.1 ALI15X3: 100% native mode on irq 28 ide1: BM-DMA at 0x28410-0x28417, BIOS settings: hdc:DMA, hdd:DMA ide2: BM-DMA at 0x28418-0x2841f, BIOS settings: hde:pio, hdf:pio hdf: LITE-ON DVDRW SOHW-1653S, ATAPI CD/DVD-ROM drive hde: ST3200822A, ATA DISK drive ide2 at 0x28438-0x2843f,0x2844e on irq 28 hde: max request size: 512KiB hde: 390721968 sectors (200049 MB) w/8192KiB Cache, CHS=24321/255/63, UDMA(100) hde: cache flushes supported hde: hde1 qla1280: QLA1040 found on PCI bus 1, dev 6 scsi(0:0): Resetting SCSI BUS scsi0 : QLogic QLA1040 PCI to SCSI Host Adapter Firmware version: 7.65.06, Driver version 3.26 serio: i8042 KBD port at 0x60,0x64 irq 1 serio: i8042 AUX port at 0x60,0x64 irq 12 mice: PS/2 mouse device common for all mice scsi 0:0:1:0: Direct-Access SEAGATE ST336706LW 0109 PQ: 0 ANSI: 3 scsi(0:0:1:0): Sync: period 10, offset 12, Wide input: AT Raw Set 2 keyboard as /devices/platform/i8042/serio0/input/input0 atkbd.c: keyboard reset failed on isa0060/serio1 TCP cubic registered Initializing XFRM netlink socket NET: Registered protocol family 1 NET: Registered protocol family 17 NET: Registered protocol family 15 scsi: waiting for bus probes to complete ... sd 0:0:1:0: [sda] 71687370 512-byte hardware sectors (36704 MB) sd 0:0:1:0: [sda] Write Protect is off sd 0:0:1:0: [sda] Write
Re: [BUG] 2.6.23-rc3 can't see sd partitions on Alpha
On Friday, 30 of November 2007, Andrew Morton wrote: On Sat, 01 Dec 2007 11:30:01 +1300 Michael Cree [EMAIL PROTECTED] wrote: Bob Tracy wrote: Andrew Morton wrote: Could be something change in sysfs. Please double-check the config options, make sure that something important didn't get disabled. Here's hoping someone else is seeing this or can replicate it in the meantime. Snap. 2.6.24-rc2 works fine. 2.6.24-rc3 boots on Alpha but once /dev is populated no partitions of the scsi sub-system are seen. Looks like ide sub-system similarly affected. Rafael, I assume you have this regression in the list? Yes, http://bugzilla.kernel.org/show_bug.cgi?id=9457 - To unsubscribe from this list: send the line unsubscribe linux-scsi in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html
