Re: [patch] x86: scale cyc_2_nsec according to CPU frequency

2007-12-08 Thread Arjan van de Ven
On Sat, 8 Dec 2007 20:16:29 +0100 Ingo Molnar <[EMAIL PROTECTED]> wrote: > > * Arjan van de Ven <[EMAIL PROTECTED]> wrote: > > > > > > Firstly, we dont need the 'offset' anymore because > > > > > cpu_clock() maintains offsets itself. > > > > > > > > Yes, but a lower quality one.

Re: entropy gathering (was Re: Why does reading from /dev/urandom deplete entropy so much?)

2007-12-08 Thread Matt Mackall
On Sat, Dec 08, 2007 at 03:04:32PM -0500, Jeff Garzik wrote: > Matt Mackall wrote: > >On Sat, Dec 08, 2007 at 02:36:33PM -0500, Jeff Garzik wrote: > >>As an aside... > >> > >>Speaking as the maintainer rng-tools, which is the home of the hardware > >>RNG entropy gathering daemon... > >> > >>I

RE: Why does reading from /dev/urandom deplete entropy so much?

2007-12-08 Thread David Schwartz
> heh, along those lines you could also do > > dmesg > /dev/random > > > > dmesg often has machine-unique identifiers of all sorts (including the > MAC address, if you have an ethernet driver loaded) > > Jeff A good three-part solution would be: 1) Encourage distributions to do

Re: tipc_init(), WARNING: at arch/x86/mm/highmem_32.c:52, [2.6.24-rc4-git5: Reported regressions from 2.6.23]

2007-12-08 Thread Ingo Molnar
* Ingo Molnar <[EMAIL PROTECTED]> wrote: > the SLUB concept is proudly outlined in init/Kconfig: > > config SLUB > bool "SLUB (Unqueued Allocator)" > help >SLUB is a slab allocator that minimizes cache line usage >instead of managing queues of cached

Re: entropy gathering (was Re: Why does reading from /dev/urandom deplete entropy so much?)

2007-12-08 Thread Theodore Tso
On Sat, Dec 08, 2007 at 03:04:32PM -0500, Jeff Garzik wrote: > That's a bit of a tangent on a tangent. :) Most people don't have a > hardware RNG. Actually, most Business class laptops from IBM/Lenovo, HP, Dell, Fujitsu, and Sony laptops *do* have TPM chips that among other things, contain a

Re: RFC: outb 0x80 in inb_p, outb_p harmful on some modern AMD64 with MCP51 laptops

2007-12-08 Thread Alan Cox
> In any case, my machine does not have an ISA bus. Why should it? It's > a laptop! Yes it does. The branding spec said "No ISA bus" so it was renamed "LPC" and hidden internally, but its alive and well. > has already serviced the bus and delivered data! Why put many > microseconds into the

Re: lockdep problem conversion semaphore->mutex (dev->sem)

2007-12-08 Thread Remy Bohmer
Hello Peter, > And while you might not see it in-tree anymore, lockdep does help out > tremendously while developing new code. I'm sure that without it the > locking would be in a much worse state than it is today. I am not arguing that, I am also convinced it has done a good job. > I have a

[PATCH] pcm_native: fix sparse warning about shadowing 'state' symbol

2007-12-08 Thread Marcin Ślusarz
pcm_native: fix sparse warning about shadowing 'state' symbol Signed-off-by: Marcin Ślusarz <[EMAIL PROTECTED]> --- sound/core/pcm_native.c |6 +++--- 1 files changed, 3 insertions(+), 3 deletions(-) diff --git a/sound/core/pcm_native.c b/sound/core/pcm_native.c index fb3dde4..925f0b6

[PATCH] via82xx: minor optimization in snd_via82xx_free

2007-12-08 Thread Marcin Ślusarz
via82xx: minor optimization in snd_via82xx_free don't check X, when we just checked !X before goto Signed-off-by: Marcin Ślusarz <[EMAIL PROTECTED]> --- sound/pci/via82xx.c |2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/sound/pci/via82xx.c b/sound/pci/via82xx.c index

[PATCH] pcm_lib: fix sparse warning about shadowing 'n' symbol

2007-12-08 Thread Marcin Ślusarz
pcm_lib: fix sparse warning about shadowing 'n' symbol Signed-off-by: Marcin Ślusarz <[EMAIL PROTECTED]> --- sound/core/pcm_lib.c | 12 ++-- 1 files changed, 6 insertions(+), 6 deletions(-) diff --git a/sound/core/pcm_lib.c b/sound/core/pcm_lib.c index 806f1fb..653fb5c 100644 ---

[PATCH] pcm_lib: fix sparse warning about different signedness

2007-12-08 Thread Marcin Ślusarz
pcm_lib: fix sparse warning about different signedness Signed-off-by: Marcin Ślusarz <[EMAIL PROTECTED]> --- sound/core/pcm_lib.c |2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/sound/core/pcm_lib.c b/sound/core/pcm_lib.c index 653fb5c..f2c3cf3 100644 ---

[GIT PULL -mm] 0/2 Unionfs updates/fixes/cleanups

2007-12-08 Thread Erez Zadok
The following is a series of patches related to Unionfs: just a couple of small bug fixes and/or optimizations. These patches were tested (where appropriate) on Linus's 2.6.24 latest code (as of v2.6.24-rc4-124-gf194d13), MM, as well as the backports to 2.6.{23,22,21,20,19,18,9} on ext2/3/4,

[PATCH 1/2] Unionfs: cleanup/consolidate branch-mode parsing code

2007-12-08 Thread Erez Zadok
Also a bug fix: disallow unrecognized branch modes at mount time, instead of defaulting to "rw". Signed-off-by: Erez Zadok <[EMAIL PROTECTED]> --- fs/unionfs/main.c | 44 ++-- fs/unionfs/super.c | 12 fs/unionfs/union.h |3 +-- 3

[PATCH 2/2] Unionfs: reduce the amount of cache-coherency debugging messages

2007-12-08 Thread Erez Zadok
Signed-off-by: Erez Zadok <[EMAIL PROTECTED]> --- fs/unionfs/dentry.c | 38 +++--- 1 files changed, 23 insertions(+), 15 deletions(-) diff --git a/fs/unionfs/dentry.c b/fs/unionfs/dentry.c index 05d9914..7d27987 100644 --- a/fs/unionfs/dentry.c +++

Re: soft lockup - CPU#1 stuck for 15s! [swapper:0]

2007-12-08 Thread Parag Warudkar
On Dec 8, 2007 3:11 PM, Ingo Molnar <[EMAIL PROTECTED]> wrote: > > * Parag Warudkar <[EMAIL PROTECTED]> wrote: > > > But there are still fluctuations under 100% idle - > > do you have CONFIG_HIGH_RES_TIMERS=y? Yes - NO_HZ=y and HIGH_RES_TIMERS=y. My ssh connection still died with hpet=disable

Re: RFC: outb 0x80 in inb_p, outb_p harmful on some modern AMD64 with MCP51 laptops

2007-12-08 Thread David P. Reed
I am going to do a test on another "unused" port. However, I realized as I was thinking about this. 0x80 is the "diagnostic device" port. It is not an "unused" port. Normally, Linux would support a device like the diagnostic device by providing a character device, called

Re: lockdep problem conversion semaphore->mutex (dev->sem)

2007-12-08 Thread Remy Bohmer
Hello Ingo, > no, you are wrong. If you want to do complex locking, you can still do > it: take a look at the dev->sem conversion patches from Peter which > correctly do this. Lockdep has all the facilities for that. > (you just dont know about them) Ok. > the general policy message here is: do

Re: entropy gathering (was Re: Why does reading from /dev/urandom deplete entropy so much?)

2007-12-08 Thread Jeff Garzik
Theodore Tso wrote: I think the userspace config problems were mainly due to the fact that there wasn't a single official userspace utility package for the random number package. Comments in drivers/char/random.c for how to set up /etc/init.d/random is Just Not Enough. Absolutely. If we

[PATCH] sound/core.h: include sound/driver.h

2007-12-08 Thread Marcin Ślusarz
sound/core.h: include sound/driver.h include sound/driver.h in sound/core.h because core.h uses SNDRV_CARDS (which is defined in sound/driver.h) Signed-off-by: Marcin Ślusarz <[EMAIL PROTECTED]> --- include/sound/core.h |1 + 1 files changed, 1 insertions(+), 0 deletions(-) diff --git

Re: lockdep problem conversion semaphore->mutex (dev->sem)

2007-12-08 Thread Peter Zijlstra
On Sat, 2007-12-08 at 21:33 +0100, Remy Bohmer wrote: > Which problems? I did not see any special things, it looked rather > straight forward. What have I overlooked? On suspend it locks the whole device tree, this means it has 'unbounded' nesting and holds an 'unbounded' number of locks.

Re: soft lockup - CPU#1 stuck for 15s! [swapper:0]

2007-12-08 Thread Arjan van de Ven
On Sat, 8 Dec 2007 15:46:54 -0500 "Parag Warudkar" <[EMAIL PROTECTED]> wrote: > On Dec 8, 2007 3:11 PM, Ingo Molnar <[EMAIL PROTECTED]> wrote: > > > > * Parag Warudkar <[EMAIL PROTECTED]> wrote: > > > > > But there are still fluctuations under 100% idle - > > > > do you have

[PATCH] sound/core/memory.c: include sound/core.h

2007-12-08 Thread Marcin Ślusarz
sound/core/memory.c: include sound/core.h copy_to_user_fromio and copy_from_user_toio are declared in sound/core.h but sound/core/memory.c doesn't include it - fix it depends on: "[PATCH] sound/core.h: include sound/driver.h" Signed-off-by: Marcin Ślusarz <[EMAIL PROTECTED]> ---

[PATCH] sound/core/seq: move declarations of globally visible variables to proper headers

2007-12-08 Thread Marcin Ślusarz
sound/core/seq: move declarations of globally visible variables to proper headers Signed-off-by: Marcin Ślusarz <[EMAIL PROTECTED]> --- sound/core/seq/seq_clientmgr.c |2 -- sound/core/seq/seq_clientmgr.h |2 ++ sound/core/seq/seq_timer.c |7 --- sound/core/seq/seq_timer.h

Re: lockdep problem conversion semaphore->mutex (dev->sem)

2007-12-08 Thread Remy Bohmer
Peter, Thanks for this clear answer. Remy 2007/12/8, Peter Zijlstra <[EMAIL PROTECTED]>: > > On Sat, 2007-12-08 at 21:33 +0100, Remy Bohmer wrote: > > > Which problems? I did not see any special things, it looked rather > > straight forward. What have I overlooked? > > On suspend it locks the

[PATCH] asm-*/compat.h: fix typo in comment

2007-12-08 Thread Marcin Ślusarz
asm-*/compat.h: fix typo in comment Signed-off-by: Marcin Ślusarz <[EMAIL PROTECTED]> --- include/asm-ia64/compat.h|2 +- include/asm-mips/compat.h|2 +- include/asm-parisc/compat.h |2 +- include/asm-powerpc/compat.h |2 +- include/asm-s390/compat.h|2 +-

Re: soft lockup - CPU#1 stuck for 15s! [swapper:0]

2007-12-08 Thread Parag Warudkar
On Dec 8, 2007 3:51 PM, Arjan van de Ven <[EMAIL PROTECTED]> wrote: > what chipset is this? > (I wonder if there's one where we shouldn't be force-enabling the hpet) It's an Intel Mac Mini - Intel 945GM chipset. I believe OSX requires HPET and so there shouldn't be a need to force enable it on

[PATCH] info_oss: move prototype of snd_card_info_read_oss to info.h

2007-12-08 Thread Marcin Ślusarz
info_oss: move prototype of snd_card_info_read_oss to info.h Signed-off-by: Marcin Ślusarz <[EMAIL PROTECTED]> --- include/sound/info.h |2 ++ sound/core/info_oss.c |2 -- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/include/sound/info.h b/include/sound/info.h index

[PATCH] rawmidi: let sparse know what is going on _for real_

2007-12-08 Thread Marcin Ślusarz
rawmidi: let sparse know what is going on _for real_ snd_rawmidi_kernel_read1/write1 weren't annotated but used copy_to_user/copy_from_user when one of parameters (kernel) was equal to 0 remove it and add properly annotated parameter Signed-off-by: Marcin Ślusarz <[EMAIL PROTECTED]> ---

Re: entropy gathering (was Re: Why does reading from /dev/urandom deplete entropy so much?)

2007-12-08 Thread Willy Tarreau
On Sat, Dec 08, 2007 at 02:36:33PM -0500, Jeff Garzik wrote: > > As an aside... > > Speaking as the maintainer rng-tools, which is the home of the hardware > RNG entropy gathering daemon... > > I wish somebody (not me) would take rngd and several other projects, and > combine them into a

Re: use of fixmap on non-x86/sh?

2007-12-08 Thread Ralf Baechle
On Fri, Nov 30, 2007 at 04:14:55PM -0600, Kumar Gala wrote: > Ben and I are talking about using fixmap on ppc for similar applications to > it use on x86. However in poking around other arch's (sparc, mips) they > appear to have some support but not as complete as x86. > > For example both

Re: RFC: outb 0x80 in inb_p, outb_p harmful on some modern AMD64 with MCP51 laptops

2007-12-08 Thread Alan Cox
> The point here is that Linux is NOT using a defined-to-be "unused" > port. It IS using the "diagnostic" port, and talking to a diagnostic > device that *is* used, and may be present. Just like millions of other pieces of software from the same era. > 2) Start a background task with the

Re: entropy gathering (was Re: Why does reading from /dev/urandom deplete entropy so much?)

2007-12-08 Thread Willy Tarreau
On Sat, Dec 08, 2007 at 02:19:54PM -0600, Matt Mackall wrote: > On Sat, Dec 08, 2007 at 03:04:32PM -0500, Jeff Garzik wrote: > > Matt Mackall wrote: > > >On Sat, Dec 08, 2007 at 02:36:33PM -0500, Jeff Garzik wrote: > > >>As an aside... > > >> > > >>Speaking as the maintainer rng-tools, which is

Re: scsi_wait_scan Kconfig option

2007-12-08 Thread Stefan Richter
> Clemens Koller <[EMAIL PROTECTED]> wrote: >> Nick Warne schrieb: >>> I am bringing this up again - primarily as I forgot about it after >>> patching my build tree ages ago: >>> >>> http://lkml.org/lkml/2007/10/27/68 >> Please see the patch I sent some days ago, which does the very >> same

Re: Bug: get EXT3-fs error Allocating block in system zone

2007-12-08 Thread Marco Gatti
Linus Torvalds schrieb: But the disk errors are something else, doesn't ring a bell. Sounds like IO corruption on the group descriptor block or something like that. Might be worth testing to see if the problem goes away with less than 4GB of RAM.. Today, I tested with different amounts

Re: [PATCH 1/6] indirect: use asmlinkage in i386 syscall table prototype

2007-12-08 Thread Zach Brown
>> +extern asmlinkage long (*sys_call_table[])(long, long, long, > This should be something like below instead, otherwise gcc wont parse > asmlinkage as being an attribute of the function signature. > extern long (asmlinkage *sys_call_table[])(long, long, long, Yeah, thanks for

Re: programs vanish with 2.6.22+

2007-12-08 Thread Markus
Well, after that I tried to verify that 22 is really fine. Unfortunatelly under heavy load its the same... even with .19 (the oldes kernel I have still installed) I just noticed it, because its harder to produce it on .22 and before. You guys tuned the kernel so it was easier. So it must be

Re: ICH9 & Core2 Duo - kernel crash

2007-12-08 Thread Pavol Cvengros
Bill Davidsen wrote: Pavol Cvengros wrote: Bill Davidsen wrote: Pavol Cvengros wrote: On Thursday 06 December 2007 21:15:53 Bill Davidsen wrote: Pavol Cvengros wrote: Hello, I am trying LKML to get some help on one linux kernel related problem. Lately we got a machine with new HW from

Re: 2.6.24-rc4-git5: Reported regressions from 2.6.23

2007-12-08 Thread Rafael J. Wysocki
On Saturday, 8 of December 2007, Andrew Morton wrote: > On Sat, 8 Dec 2007 09:28:15 +0100 Ingo Molnar <[EMAIL PROTECTED]> wrote: > > > > > * Fabio Comolli <[EMAIL PROTECTED]> wrote: > > > > > > > > > > > > Subject : Battery shows up twice in kpowersave > > > > Submitter : Rolf

Re: Correct types for mod_devicetable.h (was: Re: m68k build failure)

2007-12-08 Thread Adrian Bunk
On Mon, Dec 03, 2007 at 09:02:19PM +1100, Rusty Russell wrote: > On Sunday 02 December 2007 22:22:31 Geert Uytterhoeven wrote: > > On Sat, 1 Dec 2007, Pierre Ossman wrote: > > > Yeah, that could work. Have a header with stuff like this: > > > > > > typedef u16 __attribute__((aligned(2)))

Re: 2.6.24-rc4-git5: Reported regressions from 2.6.23

2007-12-08 Thread Rafael J. Wysocki
On Saturday, 8 of December 2007, Andrew Morton wrote: > On Sat, 8 Dec 2007 03:40:49 +0100 "Rafael J. Wysocki" <[EMAIL PROTECTED]> > wrote: > > > This message contains a list of some regressions from 2.6.23 which have been > > reported since 2.6.24-rc1 was released and for which there are no

Re: Why does reading from /dev/urandom deplete entropy so much?

2007-12-08 Thread Adrian Bunk
On Thu, Dec 06, 2007 at 02:32:05PM -0500, Bill Davidsen wrote: >... > Sounds like a local DoS attack point to me... As long as /dev/random is readable for all users there's no reason to use /dev/urandom for a local DoS... cu Adrian -- "Is there not promise of rain?" Ling Tan asked

Re: Why does reading from /dev/urandom deplete entropy so much?

2007-12-08 Thread Ismail Dönmez
Sunday 09 December 2007 00:03:45 tarihinde Adrian Bunk şunları yazmıştı: > On Thu, Dec 06, 2007 at 02:32:05PM -0500, Bill Davidsen wrote: > >... > > Sounds like a local DoS attack point to me... > > As long as /dev/random is readable for all users there's no reason to > use /dev/urandom for a

Re: 2.6.24-rc4-git5: Reported regressions from 2.6.23

2007-12-08 Thread Rafael J. Wysocki
On Saturday, 8 of December 2007, Theodore Tso wrote: > On Sat, Dec 08, 2007 at 01:42:41AM -0800, Andrew Morton wrote: > > > Subject : snd_hda_intel 2.6.24-rc2 bug: interrupts don't always > > > work on Lenovo X60s > > > Submitter : Roland Dreier <[EMAIL PROTECTED]> > > > References

Re: 2.6.24-rc4-git5: Reported regressions from 2.6.23

2007-12-08 Thread Rafael J. Wysocki
On Saturday, 8 of December 2007, Richard Purdie wrote: > On Sat, 2007-12-08 at 03:40 +0100, Rafael J. Wysocki wrote: > > Subject : leds: ledtrig-timer calls sleeping function from > > invalid context > > Submitter : Márton Németh <[EMAIL PROTECTED]> > > References :

Re: scsi_wait_scan Kconfig option

2007-12-08 Thread Matthew Wilcox
On Sat, Dec 08, 2007 at 10:21:11PM +0100, Stefan Richter wrote: > Besides, in order for scsi_wait_scan to work, drivers need to support it > explicitly, don't they? If so, simply kill the "default m" from config > SCSI_WAIT_SCAN and let any driver which is integrated with it select it. No. All

Re: Major regression on hackbench with SLUB

2007-12-08 Thread Steven Rostedt
Hi Linus, > On Fri, 7 Dec 2007, Linus Torvalds wrote: > > > > Can you do one run with oprofile, and see exactly where the cost is? It > > should hopefully be pretty darn obvious, considering your timing. The results are here: http://people.redhat.com/srostedt/slub/results/slab.op

Re: [RFC] swap image signature check upon resume

2007-12-08 Thread Rafael J. Wysocki
On Saturday, 8 of December 2007, Borislav Petkov wrote: > On Fri, Dec 07, 2007 at 09:19:09PM +0100, Rafael J. Wysocki wrote: > > ... > > > > > Well, there's a patchset in the current mainline that allows you to use > > > > arbitrary (sufficiently new) kernel to load the image and then restore >

Re: lockdep problem conversion semaphore->mutex (dev->sem)

2007-12-08 Thread Jarek Poplawski
Peter Zijlstra wrote, On 12/08/2007 09:50 PM: > On Sat, 2007-12-08 at 21:33 +0100, Remy Bohmer wrote: > >> Which problems? I did not see any special things, it looked rather >> straight forward. What have I overlooked? > > On suspend it locks the whole device tree, this means it has 'unbounded'

Re: [Bugme-new] [Bug 9482] New: kernel GPF in 2.6.24 (g09f345da)

2007-12-08 Thread Jon Nelson
I can confirm that 2.6.24rc4 with the (second) patch works fine. -- Jon -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at

Re: soft lockup - CPU#1 stuck for 15s! [swapper:0]

2007-12-08 Thread Parag Warudkar
No problems after disabling CONFIG_HIGHRES_TIMERS , CONFIG_CPU_IDLE and CONFIG_NO_HZ. I will try enabling them one by one - HRT, NOHZ and CPU_IDLE last - that way we can at least tell what is required to be hit with this problem. Parag -- To unsubscribe from this list: send the line "unsubscribe

Re: broken suspend (sched related) [Was: 2.6.24-rc4-mm1]

2007-12-08 Thread Jiri Slaby
On 12/08/2007 04:24 PM, Ingo Molnar wrote: > i'm wondering why it had no effect now diff --git a/kernel/cpu.c b/kernel/cpu.c index e0d3a4f..a46c252 100644 --- a/kernel/cpu.c +++ b/kernel/cpu.c @@ -47,15 +47,21 @@ void __init cpu_hotplug_init(void) } #ifdef CONFIG_HOTPLUG_CPU - +#include void

Re: [PATCH] scheduler: fix x86 regression in native_sched_clock

2007-12-08 Thread Guillaume Chazarain
On Dec 8, 2007 9:52 AM, Ingo Molnar <[EMAIL PROTECTED]> wrote: > the scariest bit isnt even the scaling i think - that is a fairly > straightforward and clean PER_CPU-ization of the global scaling factor, > and its hookup with cpufreq events. (and the credit for that goes to > Guillaume

2.6.23.9 64-bit IRQ sharing without irqbalance with p35 vs i965?

2007-12-08 Thread Justin Piszcz
Can some please explain with almost identical kernel .config's I see this on a p965 Intel board: CPU0 CPU1 CPU2 CPU3 0: 2501669875 0 0 0 IO-APIC-edge timer 1: 8 0 0 0 IO-APIC-edge i8042

Re: Why does reading from /dev/urandom deplete entropy so much?

2007-12-08 Thread Theodore Tso
On Sun, Dec 09, 2007 at 12:10:10AM +0200, Ismail Dönmez wrote: > > As long as /dev/random is readable for all users there's no reason to > > use /dev/urandom for a local DoS... > > Draining entropy in /dev/urandom means that insecure and possibly not random > data will be used and well thats a

Re: entropy gathering (was Re: Why does reading from /dev/urandom deplete entropy so much?)

2007-12-08 Thread Theodore Tso
On Sat, Dec 08, 2007 at 09:42:39PM +0100, Willy Tarreau wrote: > I remember having installed openssh on an AIX machines years ago, and > being amazed by the number of sources it collected entropy from. Simple > commands such as "ifconfig -a", "netstat -i" and "du -a", "ps -ef", "w" > provided a

Re: [PATCH 1/3] will_become_orphaned_pgrp: we have threads

2007-12-08 Thread Eric W. Biederman
Oleg Nesterov <[EMAIL PROTECTED]> writes: > p->exit_state != 0 doesn't mean this process is dead, it may have sub-threads. > > However, the new "p->exit_state && thread_group_empty(p)" check is not correct > either, this is just the temporary hack. Perhaps we can just remove this > check, > but

Re: [PATCH 1/4 -mm] kexec based hibernation -v7 : kexec jump

2007-12-08 Thread Pavel Machek
Hi! > This patch implements the functionality of jumping between the kexeced > kernel and the original kernel. > > To support jumping between two kernels, before jumping to (executing) > the new kernel and jumping back to the original kernel, the devices > are put into quiescent state, and the

Re: [PATCH 2/6] random: use xor for mixing

2007-12-08 Thread Theodore Tso
On Sat, Dec 08, 2007 at 05:20:16PM -0600, Matt Mackall wrote: > random: use xor for mixing > > With direct assignment, we can determine the twist table element used > for mixing (the high 3 bits of the table are unique) and reverse a > single step of mixing. Instead, use xor, which should also

Re: [PATCH 1/4 -mm] kexec based hibernation -v7 : kexec jump

2007-12-08 Thread Rafael J. Wysocki
On Sunday, 9 of December 2007, Pavel Machek wrote: > Hi! > > > This patch implements the functionality of jumping between the kexeced > > kernel and the original kernel. > > > > To support jumping between two kernels, before jumping to (executing) > > the new kernel and jumping back to the

Re: 2.6.23.9 64-bit IRQ sharing without irqbalance with p35 vs i965?

2007-12-08 Thread Arjan van de Ven
On Sat, 8 Dec 2007 18:44:39 -0500 (EST) Justin Piszcz <[EMAIL PROTECTED]> wrote: > Can some please explain with almost identical kernel .config's I see > this on a p965 Intel board: your bios programmed the machines differently... the p965 has the higher performing settup, but still it's

Re: 2.6.24-rc4 hwmon it87 probe fails

2007-12-08 Thread Adrian Bunk
On Tue, Dec 04, 2007 at 09:51:54PM -0500, Mike Houston wrote: > I finally got around to testing Linux 2.6.24 (2.6.24-rc4) and found > that the it87 driver fails to probe and consequently, my sensors no > longer work. This was fine with Linux 2.6.23.8 (the last kernel I was > using) > > The

Re: 2.6.24-rc3-git4 NFS crossmnt regression

2007-12-08 Thread Maxim Levitsky
On Saturday 08 December 2007 01:43:28 Rafael J. Wysocki wrote: > On Saturday, 8 of December 2007, Andrew Morton wrote: > > On Fri, 07 Dec 2007 17:51:58 -0500 > > Trond Myklebust <[EMAIL PROTECTED]> wrote: > > > > > > > > On Fri, 2007-12-07 at 14:39 -0500, Shane wrote: > > > > On Dec 7, 2007 2:16

Re: Allow (O=...) from file

2007-12-08 Thread Jay Cliburn
On Sat, 8 Dec 2007 21:14:09 +0100 Sam Ravnborg <[EMAIL PROTECTED]> wrote: > Jay - can I ask you to try out following patch. Hello Sam, Yes, your patch works for me. Thank you very much. > diff --git a/Makefile b/Makefile > index a5252f4..7fb1a2c 100644 > --- a/Makefile > +++ b/Makefile > @@

Re: Major regression on hackbench with SLUB

2007-12-08 Thread Steven Rostedt
Ingo, Due to email problems, I never got your reply on this thread. But I saw your reply when reading this thread on lkml.org (nor did I receive Linus's first reply). Anyway, I booted 2.6.24-rc4-mm1 with the same config, and accepted the defaults to the new config options as the git version I

Re: [PATCH 2/3] ptrace_stop: remove the wrong ->group_stop_count bookkeeping

2007-12-08 Thread Eric W. Biederman
Oleg Nesterov <[EMAIL PROTECTED]> writes: > ptrace_stop() decrements ->group_stop_count to "participate" in group stop. > This looks very wrong to me, the task can in fact decrement this counter > twice. > If the tracee returns to the user-space before other threads complete the > group > stop,

Re: [PATCH 3/6] random: do extraction before mixing

2007-12-08 Thread Theodore Tso
On Sat, Dec 08, 2007 at 05:20:17PM -0600, Matt Mackall wrote: > random: do extraction before mixing > > If an attacker manages to capture the current pool state, she can > determine the last 10 bytes extracted from the pool. That's not true; we aren't just extracting data in the

Re: [PATCH 2/6] random: use xor for mixing

2007-12-08 Thread Matt Mackall
On Sat, Dec 08, 2007 at 07:01:04PM -0500, Theodore Tso wrote: > On Sat, Dec 08, 2007 at 05:20:16PM -0600, Matt Mackall wrote: > > random: use xor for mixing > > > > With direct assignment, we can determine the twist table element used > > for mixing (the high 3 bits of the table are unique) and

Re: Bug: get EXT3-fs error Allocating block in system zone

2007-12-08 Thread Linus Torvalds
On Sat, 8 Dec 2007, Marco Gatti wrote: > > Today, I tested with different amounts of RAM: > > 2 GB: everything works fine > 4 GB: same issue as described before with allocating block in system zone > > So what to do, in order to use more than 2 Gigs of RAM? Was there a dmesg out there

Re: [BUG] 2.6.23-rc3 can't see sd partitions on Alpha

2007-12-08 Thread Michael Cree
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

Re: [PATCH 1/4 -mm] kexec based hibernation -v7 : kexec jump

2007-12-08 Thread Eric W. Biederman
"Rafael J. Wysocki" <[EMAIL PROTECTED]> writes: >> I'm not kexec hacker... but maybe this is in good enough state to be >> merged? It is useful on its own: kexec jump and back means we can dump >> system then continue running, for example... > > As far as I'm concerned, patches [1/4] and [2/4]

Re: entropy gathering (was Re: Why does reading from /dev/urandom deplete entropy so much?)

2007-12-08 Thread Jon Masters
On Sat, 2007-12-08 at 18:47 -0500, Theodore Tso wrote: > On Sat, Dec 08, 2007 at 09:42:39PM +0100, Willy Tarreau wrote: > > I remember having installed openssh on an AIX machines years ago, and > > being amazed by the number of sources it collected entropy from. Simple > > commands such as

rq_for_each_bio

2007-12-08 Thread Adrian McMenamin
I have tried to search through the mailing list and it is not entirely clear, but it looks like this has gone from the kernel: not least because my driver reports: drivers/sh/gdrom/gdrom.c:665: error: implicit declaration of function 'rq_for_each_bio' I am not arguing for a stable ABI/API, I get

Re: [PATCH 4/6] random: make backtracking attacks harder

2007-12-08 Thread Theodore Tso
On Sat, Dec 08, 2007 at 05:20:38PM -0600, Matt Mackall wrote: > random: make backtracking attacks harder > > At each extraction, we change (poolbits / 16) + 32 bits in the pool, > or 96 bits in the case of the secondary pools. Thus, a brute-force > backtracking attack on the pool state is less

Re: [PATCH 5/6] random: step more rapidly through the pool when adding and extracting

2007-12-08 Thread Theodore Tso
On Sat, Dec 08, 2007 at 05:20:39PM -0600, Matt Mackall wrote: > random: step more rapidly through the pool when adding and extracting > > Second, this patch spreads the mixing across the pool more rapidly by > using a larger step. For our secondary pools, we'll be sure to touch > both blocks with

Re: [PATCH 6/6] random: improve variable naming, clear extract buffer

2007-12-08 Thread Theodore Tso
On Sat, Dec 08, 2007 at 05:21:00PM -0600, Matt Mackall wrote: > random: improve variable naming, clear extract buffer > > - split the SHA variables apart into hash and workspace > - rename data to extract > - wipe extract and workspace after hashing > > diff -r 924f9a441236 drivers/char/random.c

Re: [PATCH 2/6] random: use xor for mixing

2007-12-08 Thread Theodore Tso
On Sat, Dec 08, 2007 at 06:40:17PM -0600, Matt Mackall wrote: > I'm working on strengthening forward security for cases where the > internals are exposed to an attacker. There are any number of > situations where this can and does happen, and ensuring we don't > expose ourselves to backtracking is

Re: Please revert: PCI: fix IDE legacy mode resources

2007-12-08 Thread Ralf Baechle
On Thu, Dec 06, 2007 at 05:24:22PM +1100, Benjamin Herrenschmidt wrote: > On Thu, 2007-12-06 at 14:58 +0900, Yoichi Yuasa wrote: > > > What I don't understand is thus why you are calling resource_to_bus > > on 0x1f0 > > > which is -not- a resource value, but is already a BAR value... > > > >

Re: 2.6.24-rc4-git5: Reported regressions from 2.6.23

2007-12-08 Thread Theodore Tso
On Sat, Dec 08, 2007 at 11:30:53PM +0100, Rafael J. Wysocki wrote: > On Saturday, 8 of December 2007, Theodore Tso wrote: > > However, as far as I am concerned, Ingo's patch, first posted to LKML > > here: http://lkml.org/lkml/2007/11/16/66 should be listed as fixing > > the above regression.

Re: 2.6.24-rc4 hwmon it87 probe fails

2007-12-08 Thread Mike Houston
On Sun, 9 Dec 2007 01:05:54 +0100 Adrian Bunk <[EMAIL PROTECTED]> wrote: > On Tue, Dec 04, 2007 at 09:51:54PM -0500, Mike Houston wrote: > > I finally got around to testing Linux 2.6.24 (2.6.24-rc4) and > > found that the it87 driver fails to probe and consequently, my > > sensors no longer work.

Re: 2.6.24-rc4-mm1 -- boot process hangs -- tty4 main process (2988) terminated with status 1

2007-12-08 Thread Miles Lane
> > Dec 6 21:24:28 erratic-orbits init: tty3 main process (2991) > > terminated with status 1 > > Boggle. We broke the vt driver? > > config, please... I sent the .config. Is there nothing else to follow up on? I have tried rebuilding about seven kernels, tweaking the options each time. All

Re: [PATCH] ps3: "mm/Kconfig" fix

2007-12-08 Thread Geoff Levand
On 12/08/2007 11:30 AM, Miguel Botón wrote: > sparsemem-make-sparsemem-vmemmap-selectable.patch introduces a little bug. > > SPARSEMEM_VMEMMAP can be enabled in an architecture that doesn't support it. > If the > architecture supports SPARSEMEM_VMEMMAP, SPARSEMEM_VMEMMAP_ENABLE is enabled, > so

Re: 2.6.24-rc4-mm1 and Very Slow PCMCIA Compact Flash

2007-12-08 Thread Zan Lynx
On Sat, 2007-12-08 at 02:07 -0800, Andrew Morton wrote: > On Fri, 07 Dec 2007 22:01:33 -0700 Zan Lynx <[EMAIL PROTECTED]> wrote: > > > > > On Fri, 2007-12-07 at 15:22 -0800, Andrew Morton wrote: > > > On Fri, 07 Dec 2007 23:09:43 + > > > Zan Lynx <[EMAIL PROTECTED]> wrote: > > [cut] > > >

Re: [Bugme-new] [Bug 9482] New: kernel GPF in 2.6.24 (g09f345da)

2007-12-08 Thread Andrew Morton
On Sat, 8 Dec 2007 16:59:30 -0600 "Jon Nelson" <[EMAIL PROTECTED]> wrote: > I can confirm that 2.6.24rc4 with the (second) patch works fine. OK, thanks. We haven't heard back from Ed yet. I'll sit on this for a few more days. From: Andrew Morton <[EMAIL PROTECTED]> Cc: "Ed L. Cashin"

Re: [PATCH 5/6] random: step more rapidly through the pool when adding and extracting

2007-12-08 Thread Andrew Morton
On Sat, 8 Dec 2007 20:48:20 -0500 Theodore Tso <[EMAIL PROTECTED]> wrote: > On Sat, Dec 08, 2007 at 05:20:39PM -0600, Matt Mackall wrote: > > random: step more rapidly through the pool when adding and extracting > > > > Second, this patch spreads the mixing across the pool more rapidly by > >

Re: 2.6.24-rc4-mm1 and Very Slow PCMCIA Compact Flash

2007-12-08 Thread Andrew Morton
On Sat, 08 Dec 2007 20:02:54 -0700 Zan Lynx <[EMAIL PROTECTED]> wrote: > > On Sat, 2007-12-08 at 02:07 -0800, Andrew Morton wrote: > > On Fri, 07 Dec 2007 22:01:33 -0700 Zan Lynx <[EMAIL PROTECTED]> wrote: > > > > > > > > On Fri, 2007-12-07 at 15:22 -0800, Andrew Morton wrote: > > > > On Fri,

Re: [BUG] 2.6.23-rc3 can't see sd partitions on Alpha

2007-12-08 Thread Bob Tracy
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

Re: rq_for_each_bio

2007-12-08 Thread Neil Brown
On Sunday December 9, [EMAIL PROTECTED] wrote: > I have tried to search through the mailing list and it is not entirely > clear, but it looks like this has gone from the kernel: not least > because my driver reports: > > drivers/sh/gdrom/gdrom.c:665: error: implicit declaration of function >

sparsemem: Make SPARSEMEM_VMEMMAP selectable

2007-12-08 Thread Geoff Levand
From: Geoff Levand <[EMAIL PROTECTED]> SPARSEMEM_VMEMMAP needs to be a selectable config option to support building the kernel both with and without sparsemem vmemmap support. This selection is desirable for platforms which could be configured one way for platform specific builds and the other

Re: [PATCH 5/6] random: step more rapidly through the pool when adding and extracting

2007-12-08 Thread Matt Mackall
On Sat, Dec 08, 2007 at 08:00:55PM -0800, Andrew Morton wrote: > On Sat, 8 Dec 2007 20:48:20 -0500 Theodore Tso <[EMAIL PROTECTED]> wrote: > > > On Sat, Dec 08, 2007 at 05:20:39PM -0600, Matt Mackall wrote: > > > random: step more rapidly through the pool when adding and extracting > > > > > >

Re: RFC: outb 0x80 in inb_p, outb_p harmful on some modern AMD64 with MCP51 laptops

2007-12-08 Thread Rene Herman
On 08-12-07 20:25, David P. Reed wrote: In any case, my machine does not have an ISA bus. Why should it? It's a laptop! A bus is not something with expansion slots. Your machine has an ISA bus, or LPC rather, if only to hang its BIOS of. That earlier report about BIOS chips shitting

Re: [PATCH 6/6] random: improve variable naming, clear extract buffer

2007-12-08 Thread Matt Mackall
On Sat, Dec 08, 2007 at 08:51:54PM -0500, Theodore Tso wrote: > On Sat, Dec 08, 2007 at 05:21:00PM -0600, Matt Mackall wrote: > > random: improve variable naming, clear extract buffer > > > > - split the SHA variables apart into hash and workspace > > - rename data to extract > > - wipe extract

Re: Why does reading from /dev/urandom deplete entropy so much?

2007-12-08 Thread Willy Tarreau
On Sat, Dec 08, 2007 at 06:46:12PM -0500, Theodore Tso wrote: > On Sun, Dec 09, 2007 at 12:10:10AM +0200, Ismail Dönmez wrote: > > > As long as /dev/random is readable for all users there's no reason to > > > use /dev/urandom for a local DoS... > > > > Draining entropy in /dev/urandom means that

Re: [PATCH 4/6] random: make backtracking attacks harder

2007-12-08 Thread Matt Mackall
On Sat, Dec 08, 2007 at 08:45:50PM -0500, Theodore Tso wrote: > On Sat, Dec 08, 2007 at 05:20:38PM -0600, Matt Mackall wrote: > > random: make backtracking attacks harder > > > > At each extraction, we change (poolbits / 16) + 32 bits in the pool, > > or 96 bits in the case of the secondary

Re: [PATCH] kbuild: implement modules.order

2007-12-08 Thread Tejun Heo
Adrian Bunk wrote: > And thinking about it, it doesn't seem to add any problems regarding > what I have in mind: > > If we would ever stop having any well-defined link-order for in-kernel > code and express everything through initcall levels, we simply must > additionally update the

Re: [PATCH] depmod: sort output according to modules.order

2007-12-08 Thread Tejun Heo
Jon Masters wrote: > On Tue, 2007-12-04 at 22:55 +0900, Tejun Heo wrote: > >> Kbuild now generates and installs modules.order along with modules. >> This patch updates depmod such that it sorts module list according to >> the file before generating output files. Modules which aren't on >>

Re: 2.6.24-rc4-git5: Reported regressions from 2.6.23

2007-12-08 Thread Tejun Heo
Robert Hancock wrote: > Matthew Garrett wrote: >> On Sat, Dec 08, 2007 at 02:20:01AM -0800, Andrew Morton wrote: >>> On Sat, 8 Dec 2007 11:12:57 +0100 Andreas Mohr <[EMAIL PROTECTED]> wrote: ACPI Exception (exoparg2-0442): AE_AML_PACKAGE_LIMIT, Index (0) is beyond end of object

usb regression in 2.6.24-rc4

2007-12-08 Thread Gene Heskett
Greetings guys & gals; This was sent about an hour ago to the usb-devel list also. - Just a few minutes ago I needed to make use of my scanner, an Epson 1250u. Firing up xsane, the usual select the device menu window didn't show, and it went straight to my tv card as the only input

Re: Why does reading from /dev/urandom deplete entropy so much?

2007-12-08 Thread Ismail Dönmez
Sunday 09 December 2007 01:46:12 tarihinde Theodore Tso şunları yazmıştı: > On Sun, Dec 09, 2007 at 12:10:10AM +0200, Ismail Dönmez wrote: > > > As long as /dev/random is readable for all users there's no reason to > > > use /dev/urandom for a local DoS... > > > > Draining entropy in /dev/urandom

RE: usb regression in 2.6.24-rc4

2007-12-08 Thread Bob Gill
Hi. Just a quick reply. Is /proc/bus/usb empty? Is there no symlink named devices (and so you can't cat devices to see what is there)? Also, (if /proc/bus/usb is empty), is /dev/bus/usb/devices not empty? (When you cat devices does it list usb devices you have plugged in?) If so, then

Re: Correct types for mod_devicetable.h (was: Re: m68k build failure)

2007-12-08 Thread Jon Masters
On Sat, 2007-12-08 at 22:58 +0100, Adrian Bunk wrote: > On Mon, Dec 03, 2007 at 09:02:19PM +1100, Rusty Russell wrote: > > On Sunday 02 December 2007 22:22:31 Geert Uytterhoeven wrote: > > > On Sat, 1 Dec 2007, Pierre Ossman wrote: > > > > Yeah, that could work. Have a header with stuff like

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