Re: [RFC] Thread Migration Preemption

On Thu, 2007-07-05 at 17:51 -0400, Mathieu Desnoyers wrote: > Thread Migration Preemption > > This patch adds the ability to protect critical sections from migration to > another CPU without disabling preemption. > > This will be useful to minimize the amount of preemption disabling for the -rt >

Re: [linux-pm] Re: [PATCH] Remove process freezer from suspend to RAM pathway

> There is that. > > OK, bite the bullet. Tasks involved in fuse are special. Give them a flag > and teach the freezer to put them on ice only after all other task are > frozen. In a way they are kernel, there's no use denying that. Yet another ugly hack to work around the fact that the freezer

Re: [PATCH] Remove process freezer from suspend to RAM pathway

On Thu, 2007-07-05 at 11:30 +0200, Pavel Machek wrote: > > ...but the moment you start blocking tasks that done driver request, > you _do_ have mini-freezer of your own, with pretty much the same > problems. No, not at all the same problems. Those tasks will block, but that will be harmless becau

Re: 2.6.21.5 june 30th to july 1st date hang?

Ernie Petrides wrote: Only kernels built with the CONFIG_HIGH_RES_TIMERS option enabled were vulnerable. As I mentioned in my post to Thomas, we have high res timers disabled and were still affected. Granted, our kernel has been modified so it is possible that vanilla would not be affected.

Re: [PATCH] Remove process freezer from suspend to RAM pathway

> Will you be able to guarantee that every place where a task can/will block > will be harmless place? If so, how will you guarantee that? How will you > debug issues where a task occasionally doesn't block in the right place, > particularly instances where it is some less than obvious interact

[2.6 patch] net/core/netevent.c should #include

Every file should include the headers containing the prototypes for its global functions. Signed-off-by: Adrian Bunk <[EMAIL PROTECTED]> --- --- linux-2.6.22-rc6-mm1/net/core/netevent.c.old2007-07-03 04:59:08.0 +0200 +++ linux-2.6.22-rc6-mm1/net/core/netevent.c2007-07-03 04:5

[-mm patch] arch/i386/xen/events.c should #include

Every file should include the headers containing the prototypes for its global functions. Signed-off-by: Adrian Bunk <[EMAIL PROTECTED]> --- --- linux-2.6.22-rc6-mm1/arch/i386/xen/events.c.old 2007-07-03 04:26:28.0 +0200 +++ linux-2.6.22-rc6-mm1/arch/i386/xen/events.c 2007-07-03 04:2

[2.6 patch] lib/ioremap.c should #include

Every file should include the headers containing the prototypes for its global functions. Signed-off-by: Adrian Bunk <[EMAIL PROTECTED]> --- --- linux-2.6.22-rc6-mm1/lib/ioremap.c.old 2007-07-03 05:02:10.0 +0200 +++ linux-2.6.22-rc6-mm1/lib/ioremap.c 2007-07-03 05:02:22.0 +

[-mm patch] arch/i386/xen/mmu.c must #include

This patch fixes the following compile error: <-- snip --> ... CC arch/i386/xen/mmu.o In file included from /home/bunk/linux/kernel-2.6/linux-2.6.22-rc6-mm1/arch/i386/xen/mmu.c:46: include2/asm/mmu_context.h: In function ‘switch_mm’: include2/asm/mmu_context.h:45: error: dereferencing p

[2.6 patch] i386: no need to make enable_cpu_hotplug a variable

As long as there's no write access to this variable there's no reason to let gcc check it at runtime. Signed-off-by: Adrian Bunk <[EMAIL PROTECTED]> --- arch/i386/kernel/topology.c |2 -- include/asm-i386/cpu.h |2 +- 2 files changed, 1 insertion(+), 3 deletions(-) --- linux-2.6.

[PATCH] Libertas: Fix regression in cmd.c introduced in commit 18c96c3497aa871608d57ca5e08de3558159a6c9

Hi all, While reading the last libertas commits, I discovered that this commit introduced a regression in the libertas wireless driver, inside cmd.c : commit 18c96c3497aa871608d57ca5e08de3558159a6c9 [PATCH] libertas: fix WPA associations by handling ENABLE_RSN correctly http://git.kernel.org/?p

Re: [linux-pm] Re: [PATCH] Remove process freezer from suspend to RAM pathway

On Thu, 2007-07-05 at 10:23 -0400, Alan Stern wrote: > > How will that help? Block the kernel thread in the freezer or block it > in the driver -- either way it is blocked. So how do your deadlocks > get resolved? Because nobody is waiting on that kernel thread anyway without a freezer so the

[RFC][PATCH] introduce panic_gently

If the boot process failes to find init or the root fs, the cause has usually scrolled off the screen, and because of the panic, it can't be reached anymore. This patch introduces panic_gently, which will allow to use the scrollback buffer and to reboot, but it can't be called from unsafe conte

Re: [patch 0/3] clean gendisk out of scsi ULD structs

On Thu, Jul 05, 2007 at 06:09:27PM -0400, Douglas Gilbert wrote: > Since a scsi_device object is usually a SCSI logical unit, > one wonders why it would contain a gendisk object. Logical > units aren't necessarily disks, they might be enclosures or > just place holders that respond to an INQUIRY (e

Re: [patch 0/3] clean gendisk out of scsi ULD structs

On Thu, Jul 05, 2007 at 02:06:36PM -0700, Kristen Carlson Accardi wrote: > Since gendisk will now become part of struct scsi_device, we don't need > to store this value in any private data structs where they already store > scsi_device. This series cleans up a few drivers which did this. What the

Re: [ANNOUNCE] util-linux-ng 2.13-rc1

Christoph Hellwig wrote: On Wed, Jul 04, 2007 at 12:11:56AM +0200, Karel Zak wrote: The package build system is now based on autotools. The build system supports separate CFLAGS and LDFLAGS for suid programs (SUID_CFLAGS, SUID_LDFLAGS). For more details see the README file And this is real

Re: [PATCH] mtd : add FUJITSU MBM29F800BA and ST M29F800AB descriptions

On Thu, Jul 05, 2007 at 01:23:16PM -0400, David Woodhouse wrote: > On Thu, 2007-07-05 at 17:05 +0200, Philippe De Muyter wrote: > > Add descriptions for Fujitsu MBM29F800BA and ST M29F800AB flash chips. > > Those chips are compatible (except for the ids) with the AMD > > AM29F800BB. > > Aren't the

Re: Fw: [PATCH] ia64: race flushing icache in do_no_page path

On Thu, Jul 05, 2007 at 10:57:00AM +0200, Zoltan Menyhart wrote: > KAMEZAWA Hiroyuki wrote: > >In our test, we confirmed that this can be fixed by flushing L2I just > >before SetPageUptodate() in NFS. > > I can agree. > We can be more permissive: it can be done anywhere after the new > data is pu

Re: [git pull][resend] Input updates for 2.6.22-rc7

[ Ok, pulled. However, it's time for another installment of "Flame that stupid mail client", because this isn't the first time this bit me ] On Thu, 5 Jul 2007, Dmitry Torokhov wrote: > > Please consider pulling from: > >         git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input.g

Re: [PATCH] Remove process freezer from suspend to RAM pathway

Hi. On Friday 06 July 2007 08:46:54 Benjamin Herrenschmidt wrote: > On Thu, 2007-07-05 at 11:30 +0200, Pavel Machek wrote: > > > > ...but the moment you start blocking tasks that done driver request, > > you _do_ have mini-freezer of your own, with pretty much the same > > problems. > > No, not

Re: [linux-pm] Re: [PATCH] Remove process freezer from suspend to RAM pathway

> Yes, fuse could handle being frozen there. However that would only > solve part of the problem: an operation waiting for a reply could be > holding a VFS mutex and some other task may be blocked on that mutex. > > How would you solve freezing those tasks? That task is implicitely frozen... bu

Re: [patch 0/3] clean gendisk out of scsi ULD structs

On Fri, 2007-07-06 at 00:02 +0100, Al Viro wrote: > On Thu, Jul 05, 2007 at 02:06:36PM -0700, Kristen Carlson Accardi wrote: > > Since gendisk will now become part of struct scsi_device, we don't need > > to store this value in any private data structs where they already store > > scsi_device. Thi

Re: 2.6.21.5 june 30th to july 1st date hang?

On Thursday, 5-Jul-2007 at 16:49 MDT, Chris Friesen wrote: > Ernie Petrides wrote: > > > Only kernels built with the CONFIG_HIGH_RES_TIMERS option enabled were > > vulnerable. > > As I mentioned in my post to Thomas, we have high res timers disabled > and were still affected. Granted, our kern

Re: ov511 module does not build

Adrian Bunk wrote: On Wed, Jul 04, 2007 at 12:23:57AM +0100, Sid Boyce wrote: With the same setup in .config for linux-2.6.22-rc2-git7, it builds, after that and right up to linux-2.6.22-rc7-git1 it doesn't. /usr/src/linux-2.6.22-rc2-git7/drivers/media/video/ov511.ko # CONFIG_VIDEO_V4L1 is n

Re: Understanding I/O behaviour

On 06/07/07, Robert Hancock <[EMAIL PROTECTED]> wrote: [snip] Try playing with reducing /proc/sys/vm/dirty_ratio and see how that helps. This workload will fill up memory with dirty data very quickly, and it seems like system responsiveness often goes down the toilet when this happens and the sy

Re: [git pull][resend] Input updates for 2.6.22-rc7

On 06/07/07, Linus Torvalds <[EMAIL PROTECTED]> wrote: On Thu, 5 Jul 2007, Linus Torvalds wrote: > > It says your user-agent is "Kmail", and maybe there is some way to fix it. > And if kmail is correct, please make a bug-report to the kmail people. Ok, googling for kmail, I think it really is

Re: Understanding I/O behaviour

Martin Knoblauch wrote: Hi, for a customer we are operating a rackful of HP/DL380/G4 boxes that have given us some problems with system responsiveness under [I/O triggered] system load. The systems in question have the following HW: 2x Intel/EM64T CPUs 8GB memory CCISS Raid controller with 4

Re: 2.6.21.5 june 30th to july 1st date hang?

Ernie Petrides wrote: That's odd, because Thomas's patch removed two calls to clock_was_set(), which is a no-op when CONFIG_HIGH_RES_TIMERS is not enabled (at least in the 2.6.21 source tree). I'm using a modified 2.6.10 tree...I expect the timer code is different. Chris - To unsubscribe from

Re: [PATCH] Remove process freezer from suspend to RAM pathway

Hi. On Friday 06 July 2007 09:20:43 Benjamin Herrenschmidt wrote: > > > Will you be able to guarantee that every place where a task can/will block > > will be harmless place? If so, how will you guarantee that? How will you > > debug issues where a task occasionally doesn't block in the right p

Re: [git pull][resend] Input updates for 2.6.22-rc7

On Thu, 5 Jul 2007, Linus Torvalds wrote: > > It says your user-agent is "Kmail", and maybe there is some way to fix it. > And if kmail is correct, please make a bug-report to the kmail people. Ok, googling for kmail, I think it really is kmail doing it, because I find others complaining abo

Re: Libata PATA status

Andi Kleen wrote: My personal wish list feature would be a little forwarder driver to forward /dev/hd* to /dev/sd* for this; then old IDE could be disabled without risking breaking old root file systems. That's on the long-term TODO list. libata is moving towards making libata-scsi an optiona

[2.6 patch] mm/shmem.c: make 3 functions static

This patch makes three needlessly global functions static. Signed-off-by: Adrian Bunk <[EMAIL PROTECTED]> --- include/linux/mm.h | 15 --- mm/shmem.c | 10 +- 2 files changed, 5 insertions(+), 20 deletions(-) --- linux-2.6.22-rc6-mm1/include/linux/mm.h.old 2007-

[2.6 patch] mm/vmstat.c: possible cleanups

This patch contains the following possible cleanups: - make the needlessly global setup_vmstat() static - #if 0 the unused refresh_vm_stats() Signed-off-by: Adrian Bunk <[EMAIL PROTECTED]> --- mm/vmstat.c |6 +- 1 file changed, 5 insertions(+), 1 deletion(-) --- linux-2.6.22-rc6-mm1/mm

[-mm patch] kernel/sched.c: make 2 functions static

This patch makes the following needlessly global functions static: - load_balance_start() - load_balance_next() Signed-off-by: Adrian Bunk <[EMAIL PROTECTED]> --- kernel/sched.c |4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) --- linux-2.6.22-rc6-mm1/kernel/sched.c.old 2007-07

[2.6 patch] kernel/sched.c: make code static

This patch makes the following needlessly global code static: - arch_reinit_sched_domains() - struct attr_sched_mc_power_savings - struct attr_sched_smt_power_savings Signed-off-by: Adrian Bunk <[EMAIL PROTECTED]> --- include/linux/cpu.h |2 - kernel/sched.c | 46

[2.6 patch] ipc/shm.c: make 2 functions static

This patch makes two needlessly global functions static. Signed-off-by: Adrian Bunk <[EMAIL PROTECTED]> --- ipc/shm.c |5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) --- linux-2.6.22-rc6-mm1/ipc/shm.c.old 2007-07-05 16:08:24.0 +0200 +++ linux-2.6.22-rc6-mm1/ipc/shm.c

[2.6 patch] arch/i386/mach-generic/probe.c: make struct apic_probe static

This patch makes the needlessly global struct apic_probe static. Signed-off-by: Adrian Bunk <[EMAIL PROTECTED]> --- --- linux-2.6.22-rc6-mm1/arch/i386/mach-generic/probe.c.old 2007-07-05 15:55:40.0 +0200 +++ linux-2.6.22-rc6-mm1/arch/i386/mach-generic/probe.c 2007-07-05 15:55:51.00

[2.6 patch] arch/i386/mach-es7000/es7000plat.c: cleanups

This patch contains the following cleanups: - make some needlessly global functions static - #if 0 the unused es7000_stop_cpu() Signed-off-by: Adrian Bunk <[EMAIL PROTECTED]> --- arch/i386/mach-es7000/es7000plat.c | 12 +++- 1 file changed, 7 insertions(+), 5 deletions(-) --- linux-

[2.6 patch] kernel/cpuset.c: cleanups

This patch contains the following cleanups: - make the following needlessly global functions static: - cpuset_can_attach() - cpuset_attach() - cpuset_populate() - cpuset_post_clone() - cpuset_create() - cpuset_destroy() - remove the unused EXPORT_SYMBOL_GPL(cpuset_mem_spread_node) Sign

[-mm patch] make arch/i386/xen/mmu.c:xen_pgd_pin() static

xen_pgd_pin() can become static. Signed-off-by: Adrian Bunk <[EMAIL PROTECTED]> --- arch/i386/xen/mmu.c |2 +- arch/i386/xen/mmu.h |3 --- 2 files changed, 1 insertion(+), 4 deletions(-) --- linux-2.6.22-rc6-mm1/arch/i386/xen/mmu.h.old2007-07-04 20:42:44.0 +0200 +++ li

[2.6 patch] make coretemp_device_remove() static

coretemp_device_remove() can become static. Signed-off-by: Adrian Bunk <[EMAIL PROTECTED]> --- --- linux-2.6.22-rc6-mm1/drivers/hwmon/coretemp.c.old 2007-07-04 20:46:05.0 +0200 +++ linux-2.6.22-rc6-mm1/drivers/hwmon/coretemp.c 2007-07-04 20:46:20.0 +0200 @@ -318,7 +318,7

[2.6 patch] arch/i386/mm/discontig.c: make some variables static

This patch makes some needlessly global variables static. Signed-off-by: Adrian Bunk <[EMAIL PROTECTED]> --- arch/i386/mm/discontig.c | 10 +- 1 file changed, 5 insertions(+), 5 deletions(-) --- linux-2.6.22-rc6-mm1/arch/i386/mm/discontig.c.old 2007-07-05 15:59:32.0 +0200

[2.6 patch] mm/migrate.c: cleanups

This patch contains the following cleanups: - every file should include the headers containing the prototypes for its global functions - make the needlessly global putback_lru_pages() static Signed-off-by: Adrian Bunk <[EMAIL PROTECTED]> --- include/linux/migrate.h |2 -- mm/migrate.c

[2.6 patch] mm/mempolicy.c: cleanups

This patch contains the following cleanups: - every file should include the headers containing the prototypes for its global functions - make the follosing needlessly global functions static: - migrate_to_node() - do_mbind() - sp_alloc() - mpol_rebind_policy() Signed-off-by: Adrian Bunk

Re: [patch 3/4] Enable link power management for ata drivers

On Thu, 05 Jul 2007 20:02:08 -0400 Jeff Garzik <[EMAIL PROTECTED]> wrote: > May I assume that I may delete the patches from Kristen, and assume that > you will resend an updated version of her AN and ALPM patches to me? > Sure. But I have a sneaking feeling that Kristen sneaks sneaky fixes int

Re: [BUGFIX][PATCH] DO flush icache before set_pte() on ia64.

On Fri, 6 Jul 2007 07:18:53 +0900 KAMEZAWA Hiroyuki <[EMAIL PROTECTED]> wrote: > On Thu, 5 Jul 2007 12:13:09 -0600 > Mike Stroyan <[EMAIL PROTECTED]> wrote: > > The L3 cache is involved in the HP-UX defect description because the > > earlier HP-UX patch PHKL_33781 added flushing of the instructi

Re: [-mm patch] arch/i386/xen/mmu.c must #include

Adrian Bunk wrote: This patch fixes the following compile error: Hm, OK. What .config? J - 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

Re: [2.6 patch] net/core/netevent.c should #include

From: Adrian Bunk <[EMAIL PROTECTED]> Date: Fri, 6 Jul 2007 01:22:17 +0200 > Every file should include the headers containing the prototypes for > its global functions. > > Signed-off-by: Adrian Bunk <[EMAIL PROTECTED]> Applied, thanks Adrian. - To unsubscribe from this list: send the line "unsu

Re: [patch 3/4] Enable link power management for ata drivers

Andrew Morton wrote: I guess we can bump ATA_DFLAG_CFG_MASK up to 12, like this? Yep Jeff - 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

Re: [patch 3/4] Enable link power management for ata drivers

Andrew Morton wrote: On Thu, 5 Jul 2007 13:05:30 -0700 Kristen Carlson Accardi <[EMAIL PROTECTED]> wrote: + ATA_DFLAG_IPM = (1 << 6), /* device supports interface PM */ ATA_DFLAG_CFG_MASK = (1 << 8) - 1, I had to bump this to (1<<7), so we've run out. You can sh

Re: [patch 3/4] Enable link power management for ata drivers

May I assume that I may delete the patches from Kristen, and assume that you will resend an updated version of her AN and ALPM patches to me? Jeff - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo inf

Re: [-mm patch] make arch/i386/xen/mmu.c:xen_pgd_pin() static

Adrian Bunk wrote: xen_pgd_pin() can become static. Hold off on that for now. I have some local patches which add other xen/ files which use it. J - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo inf

Re: [-mm patch] arch/i386/xen/events.c should #include

Adrian Bunk wrote: Every file should include the headers containing the prototypes for its global functions OK. J - 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-

Re: Linux SMP Porting Guide

On 05/07/07, Mohamed Bamakhrama <[EMAIL PROTECTED]> wrote: Hi all, Is there any mailing list or tutorial which provides guidelines for porting Linux SMP into a new architecture? Hmm, not that /I/ know of, but various generic documentation is available in the Documentation/ directory. Perhaps i

Re: [PATCH 2/3] Virtio draft IV: the block driver

On Thu, 2007-07-05 at 09:32 +0200, Christian Borntraeger wrote: > Am Mittwoch, 4. Juli 2007 schrieb Rusty Russell: > > + vbr = mempool_alloc(vblk->pool, GFP_ATOMIC); > > + if (!vbr) > > + goto stop; > [...] > > + BUG_ON(req->nr_phys_segments > ARRAY_S

Re: slow down printk during boot.

Dave Jones wrote: This patch from Randy has proven quite useful from time to time, and has been in Fedora kernels for a while for that reason. I fixed up some checkpatch warnings, and rediffed it a bunch of times, Randy did the heavy lifting. --- This one delays each printk() during boot by a v

RSA support into kernel?

Is there any attempt being made to provide software based RSA cryptographic support in kernel? I see that Linux supports Hardware based cryptographic devices (VIA Padlock ACE). How is the performance of such hardware? How well are these devices supported? -GS - To unsubscribe from this list: send

Re: [ANNOUNCE] util-linux-ng 2.13-rc1

>i dont see how blaming autotools for other people's misuse is relevant Here's how other people's misuse of the tool can be relevant to the choice of the tool: some tools are easier to use right than others. Probably the easiest thing to use right is the system you designed and built yourself.

Re: [ANNOUNCE] util-linux-ng 2.13-rc1

On Thu, Jul 05, 2007 at 11:30:20PM +0200, Karel Zak wrote: > > > > The package build system is now based on autotools. The build system > > > > supports separate CFLAGS and LDFLAGS for suid programs (SUID_CFLAGS, > > > > SUID_LDFLAGS). For more details see the README file > > > > > > And this i

Re: [git pull][resend] Input updates for 2.6.22-rc7

On Fri, 6 Jul 2007, Jesper Juhl wrote: > > > I'm constantly surprised by just how _many_ ways MUA's find to screw up. > > 'pine' actually seems to work pretty damn well once you disable the > flowed-text "feature". Yes. And 'alpine', it's modern version, does even better, but you also need to

Re: [ANNOUNCE] util-linux-ng 2.13-rc1

On Thursday 05 July 2007, Bryan Henderson wrote: > >i dont see how blaming autotools for other people's misuse is relevant > > Here's how other people's misuse of the tool can be relevant to the choice > of the tool: some tools are easier to use right than others. Probably the > easiest thing to u

Re: [PATCH] Remove process freezer from suspend to RAM pathway

On Jul 05, 2007, at 19:35:11, Nigel Cunningham wrote: On Friday 06 July 2007 09:20:43 Benjamin Herrenschmidt wrote: No, the freezer creates all those places what are harmful for a task to block because they will break the freezer :-) Nice try :) Okay then, you remove the freezer, try hibernat

Re: [2.6 patch] kernel/cpuset.c: cleanups

> - make the following needlessly global functions static: Ok by me, but this is really the patches of Paul Menage <[EMAIL PROTECTED]>, in particular: containersv10-make-cpusets-a-client-of-containers.patch that you dealing with -- adding him to the cc list. -- I won't rest

Re: [PATCH] Remove process freezer from suspend to RAM pathway

Hi. On Friday 06 July 2007 11:19:32 Kyle Moffett wrote: > On Jul 05, 2007, at 19:35:11, Nigel Cunningham wrote: > > On Friday 06 July 2007 09:20:43 Benjamin Herrenschmidt wrote: > >> No, the freezer creates all those places what are harmful for a > >> task to block because they will break the fr

[PATCH] Print utsname on Oops on all architectures

Hopefully this patch has not been munged by pine; I have, minimally, unchecked the mung-patches-sent-to-lkml option in pine's config. In the case that it has been munged, I have also attached it. -- From: Joshua Wise <[EMAIL PROTECTED]> Background: This patch is a follow-on to "Info dump on Oop

Re: SATA exceptions

Hello, S.Çağlar Onur wrote: > [ 4260.278427] ata1.00: cmd ca/00:08:d0:88:bc/00:00:00:00:00/ee tag 0 cdb 0x0 > data 4096 out > [ 4260.278430] res 51/40:01:d7:88:bc/00:00:0e:00:00/ee Emask 0x9 > (media error) That's media error on sector 247236823 on WRITE. Media errors on write are bad

Re: slow down printk during boot.

On Fri, Jul 06, 2007 at 03:50:11AM +0200, Bodo Eggert wrote: > Dave Jones <[EMAIL PROTECTED]> wrote: > > > This patch from Randy has proven quite useful from time to time, > > and has been in Fedora kernels for a while for that reason. > > I fixed up some checkpatch warnings, and rediffed it

Re: [RFC PATCH 0/2] raid5: 65% sequential-write performance improvement, stripe-queue take2

On 04 Jul 2007 13:41:26 +0200, Andi Kleen <[EMAIL PROTECTED]> wrote: Dan Williams <[EMAIL PROTECTED]> writes: > The write performance numbers are better than I expected and would seem > to address the concerns raised in the thread "Odd (slow) RAID > performance"[2]. The read performance drop wa

Re: slow down printk during boot.

Dave Jones <[EMAIL PROTECTED]> wrote: > This patch from Randy has proven quite useful from time to time, > and has been in Fedora kernels for a while for that reason. > I fixed up some checkpatch warnings, and rediffed it a bunch > of times, Randy did the heavy lifting. > > --- > > This one dela

[RFC][Patch] Allow not mounting a root fs

This patch adds the option to not mount another root filesystem by specifying root=initramfs. TODO: Documentation --- BTW: Is it possible to mount a tmpfs on / before extracting the cpio? While I'm at it: In init/do_mounts.c, mount_root(void): ROOT_NFS: Is it desirable to use the floppy as a

Re: Does the kernel HPET support has problems or the hwclock from util-linux?

On 7/3/07, Luca Tettamanti <[EMAIL PROTECTED]> wrote: rae l <[EMAIL PROTECTED]> ha scritto: > from this address, I know util-linux-2.12r is the latest: > http://www.kernel.org/pub/linux/utils/util-linux/util-linux-2.12r.lsm > > My Dell OptiPlex 320 has 4 HPET timers and no RTC, so the execution o

Re: [RFC][Patch] Allow not mounting a root fs

Bodo Eggert wrote: > This patch adds the option to not mount another root filesystem > by specifying root=initramfs. Uhm, the kernel doesn't mount anything if you're using an initramfs. > BTW: Is it possible to mount a tmpfs on / before extracting the cpio? Not in the stock kernel. There have

[PATCH] PCI: do not delay when changing power states on Geode

Geode hardware requires no delay when doing power transition for PCI; the board doesn't even have a real PCI bus. Thanks to Tom Sylla for pointing this out. We can save precious milliseconds when changing power states to D3hot by getting rid of this delay. We do this as a PCI quirk. Signed-off-

[BUGFIX]{PATCH] flush icache on ia64 take2

This is a patch for fixing icache flush race in ia64(Montecito) by implementing flush_icache_page() at el. Changelog: - updated against 2.6.22-rc7 (previous one was against 2.6.21) - removed hugetlbe's lazy_mmu_prot_update(). - rewrote patch description. - removed patch against mprotect() if f

Re: [-mm Patch] INFINIBAND: check the return value of kmalloc

On Thu, Jul 05, 2007 at 02:42:37PM -0700, Roland Dreier wrote: >thanks, I added Jesper's suggestion to the original patch and queued >this for 2.6.23: > >(Steve, let me know if this looks OK or not to you) > >commit 8d339921a2cb279457dce79f8a308978e0b41b27 >Author: WANG Cong <[EMAIL PROTECTED]> >Da

Re: [RFC] bloody mess with __attribute__() syntax

On Thu, Jul 05, 2007 at 01:56:35PM -0700, Linus Torvalds wrote: > Is it slightly complex? Yes. It's a bit strange that the SYM_PTR doesn't > contain the information about the *pointer*, and the real information > about an object is actually "one removed" from the type infromation, but > it's a

Re: [git pull][resend] Input updates for 2.6.22-rc7

On Thursday 05 July 2007 19:09, Linus Torvalds wrote: > > On Thu, 5 Jul 2007, Dmitry Torokhov wrote: > > > > Please consider pulling from: > > > >         git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input.git > > for-linus > > There's somethign wrong with your emails, and it's very

Re: [PATCH] Remove process freezer from suspend to RAM pathway

On Fri, 2007-07-06 at 09:35 +1000, Nigel Cunningham wrote: > > Nice try :) Okay then, you remove the freezer, try hibernating, then get back > to me after you've fixed your filesystem because some process that wasn't > frozen started writing things after the atomic copy (making the on disk > fi

Re: [linux-pm] Re: [PATCH] Remove process freezer from suspend to RAM pathway

Benjamin Herrenschmidt <[EMAIL PROTECTED]> writes: [snip] > At the end of the day, I stand my ground, the freezer cannot be made > reliable without massive infrastructure changes or giving up on very > useful features such as fuse among others. Besides, it only partially > "hides" the problem of

Re: [PATCH] Remove process freezer from suspend to RAM pathway

> How about a freezer whose job it is to "wait for pending hard > interrupts to complete when we have already guaranteed that we won't > get any more"? That part should be really *REALLY* easy. You don't > need to care about either userspace processes or kernel threads at > all. Specifi

Re: [PATCH] Remove process freezer from suspend to RAM pathway

Hi. On Friday 06 July 2007 13:54:15 Benjamin Herrenschmidt wrote: > On Fri, 2007-07-06 at 09:35 +1000, Nigel Cunningham wrote: > > > > Nice try :) Okay then, you remove the freezer, try hibernating, then get back > > to me after you've fixed your filesystem because some process that wasn't > >

Re: [git pull][resend] Input updates for 2.6.22-rc7

On Thu, 5 Jul 2007, Dmitry Torokhov wrote: > > I was not... The copy I got from LKML looks fine in Kmail, Gmail and > MS Outlook. ^^ That's the problem. It *looks* *fine*. The " " doesn't look any different from a regular space. There's no way to tell the di

Valgrinding the kernel?

It'd be nice to see if Valgrind could catch uninitialized references in the kernel, if only to see if Coverity is missing anything that happens in practice. Back in December 2002, Valgrind started to run UML: http://user-mode-linux.sourceforge.net/diary.html http://marc.info/?l=linux-kernel&m=104

Re: [PATCH] Remove process freezer from suspend to RAM pathway

> I/O from swsusp and suspend2 use bios directly, so the page cache isn't an > issue for them (apart from the fact that Suspend2 saves the page cache > separately so it can get a full image). Not sure about uswsusp. > > Only having half the amount of memory doesn't sound like a big limitation f

Re: [PATCH] Remove process freezer from suspend to RAM pathway

On Jul 06, 2007, at 00:03:15, Nigel Cunningham wrote: On Friday 06 July 2007 13:54:15 Benjamin Herrenschmidt wrote: On Fri, 2007-07-06 at 09:35 +1000, Nigel Cunningham wrote: Nice try :) Okay then, you remove the freezer, try hibernating, then get back to me after you've fixed your filesyste

Re: 2.6.21.5 june 30th to july 1st date hang?

On Thu, 2007-07-05 at 17:45 -0600, Chris Friesen wrote: > Ernie Petrides wrote: > > > That's odd, because Thomas's patch removed two calls to clock_was_set(), > > which is a no-op when CONFIG_HIGH_RES_TIMERS is not enabled (at least in > > the 2.6.21 source tree). > > I'm using a modified 2.6.10

Re: 2.6.21.5 june 30th to july 1st date hang?

On Thu, 2007-07-05 at 19:12 -0400, Ernie Petrides wrote: > On Thursday, 5-Jul-2007 at 16:49 MDT, Chris Friesen wrote: > > > Ernie Petrides wrote: > > > > > Only kernels built with the CONFIG_HIGH_RES_TIMERS option enabled were > > > vulnerable. > > > > As I mentioned in my post to Thomas, we hav

[-mm PATCH 0/8] Memory controller introduction (v2)

Changelog since version 1 1. Fixed some compile time errors (in mm/migrate.c from Vaidyanathan S) 2. Fixed a panic seen when LIST_DEBUG is enabled 3. Added a mechanism to control whether we track page cache or both page cache and mapped pages (as requested by Pavel) This patchset implements an

[-mm PATCH 5/8] Memory controller task migration (v2)

Allow tasks to migrate from one container to the other. We migrate mm_struct's mem_container only when the thread group id migrates. Signed-off-by: Balbir Singh <[EMAIL PROTECTED]> --- mm/memcontrol.c | 35 +++ 1 file changed, 35 insertions(+) diff -puN mm/me

[-mm PATCH 1/8] Memory controller resource counters (v2)

From: Pavel Emelianov <[EMAIL PROTECTED]> Introduce generic structures and routines for resource accounting. Each resource accounting container is supposed to aggregate it, container_subsystem_state and its resource-specific members within. Signed-off-by: Pavel Emelianov <[EMAIL PROTECTED]> Sig

[-mm PATCH 4/8] Memory controller memory accounting (v2)

Add the accounting hooks. The accounting is carried out for RSS and Page Cache (unmapped) pages. There is now a common limit and accounting for both. The RSS accounting is accounted at page_add_*_rmap() and page_remove_rmap() time. Page cache is accounted at add_to_page_cache(), __delete_from_page

[-mm PATCH 6/8] Memory controller add per container LRU and reclaim (v2)

Add the meta_page to the per container LRU. The reclaim algorithm has been modified to make the isolate_lru_pages() as a pluggable component. The scan_control data structure now accepts the container on behalf of which reclaims are carried out. try_to_free_pages() has been extended to become conta

[-mm PATCH 3/8] Memory controller accounting setup (v2)

Basic setup routines, the mm_struct has a pointer to the container that it belongs to and the the page has a meta_page associated with it. Signed-off-by: Balbir Singh <[EMAIL PROTECTED]> --- include/linux/memcontrol.h | 32 ++ include/linux/mm_types.h |4 +++

[-mm PATCH 7/8] Memory controller OOM handling (v2)

Out of memory handling for containers over their limit. A task from the container over limit is chosen using the existing OOM logic and killed. TODO: 1. As discussed in the OLS BOF session, consider implementing a user space policy for OOM handling. Signed-off-by: Balbir Singh <[EMAIL PROTECTED]

Re: [PATCH] Remove process freezer from suspend to RAM pathway

Hi. On Friday 06 July 2007 14:41:40 Benjamin Herrenschmidt wrote: > > > I/O from swsusp and suspend2 use bios directly, so the page cache isn't an > > issue for them (apart from the fact that Suspend2 saves the page cache > > separately so it can get a full image). Not sure about uswsusp. > >

[-mm PATCH 8/8] Add switch to control what type of pages to limit (v2)

Choose if we want cached pages to be accounted or not. By default both are accounted for. A new set of tunables are added. echo -n 1 > mem_control_type switches the accounting to account for only mapped pages echo -n 2 > mem_control_type switches the behaviour back Signed-off-by: Balbir Sin

[-mm PATCH 2/8] Memory controller containers setup (v2)

Setup the memory container and add basic hooks and controls to integrate and work with the container. Signed-off-by: Balbir Singh <[EMAIL PROTECTED]> --- include/linux/container_subsys.h |6 + include/linux/memcontrol.h | 19 + init/Kconfig |8 ++ mm/Make

Re: Valgrinding the kernel?

Dan Kegel wrote: It'd be nice to see if Valgrind could catch uninitialized references in the kernel, if only to see if Coverity is missing anything that happens in practice. Back in December 2002, Valgrind started to run UML: http://user-mode-linux.sourceforge.net/diary.html http://marc.info/?l=

Re: [PATCH] Remove process freezer from suspend to RAM pathway

Hi Kyle. On Friday 06 July 2007 15:01:48 Kyle Moffett wrote: > On Jul 06, 2007, at 00:03:15, Nigel Cunningham wrote: > > The kind of thing Linus was talking about would limit you (as > > swsusp and uswsusp do now) to only half the amount of memory. > > How so? Suppose hibernate is implemented

Re: [RFC] Thread Migration Preemption

Mathieu Desnoyers wrote: > > This patch adds the ability to protect critical sections from migration to > another CPU without disabling preemption. > > Typical use: > > migration_disable(); > local_inc(&__get_cpu_var(&my_local_t_var)); > migration_enable(); > > --- linux-2.6-lttng.orig/kernel/sched

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