Kernel

Wrong DIF guard tag on ext2 write
When running tests with an ext2 filesystem on a device using DIF/DIX integrity data, i sometimes see invalid guard tags on write requests. To track down the problem, i patched the function sd_prep_fn in sd.c to verify the IP checksums in the guard tags against the actual data. Sometimes there is a mismatch and the ... 9 Jun 2010 13:05

KVM, Fix QEMU-KVM is killed by guest SRAO MCE (resend)
On 05/31/2010 09:28 AM, Huang Ying wrote: In common cases, guest SRAO MCE will cause corresponding poisoned page be un-mapped and SIGBUS be sent to QEMU-KVM, then QEMU-KVM will relay the MCE to guest OS. But it is reported that if the poisoned page is accessed in guest after un-mapped and before MCE i... 31 May 2010 07:35

module: fix reference to mod->percpu after freeing module.
On 05/31/2010 12:23 PM, Rusty Russell wrote: Rafael sees a sometimes crash at precpu_modfree from kernel/module.c; it only occurred with another (since-reverted) patch, but that patch simply changed timing to uncover this bug, it was otherwise unrelated. The comment about the mod being freed is self-exp... 31 May 2010 06:30

[PATCH] module: fix reference to mod->percpu after freeing module.
Rafael sees a sometimes crash at precpu_modfree from kernel/module.c; it only occurred with another (since-reverted) patch, but that patch simply changed timing to uncover this bug, it was otherwise unrelated. The comment about the mod being freed is self-explanatory, but neither Tejun nor I read it. This bug wa... 31 May 2010 06:30

lp_events: an lternitive to suspend blocker user mode and kernel API
On Sun, May 30, 2010 at 1:04 PM, mark gross <640e9920(a)gmail.com> wrote: Low Power Events is a possible alternative to suspend blocker / wake lock API used by Android. It provides comparable power state notification and kernel mode critical section definition. �It differs from suspend blocker in that: ... 31 May 2010 06:30

[PATCH 4/5] oom: the points calculation of child processes must use find_lock_task_mm() too
From: KOSAKI Motohiro <kosaki.motohiro(a)jp.fujitsu.com> Subject: [PATCH 4/5] oom: the points calculation of child processes must use find_lock_task_mm() too child point calclation use find_lock_task_mm() too. Signed-off-by: KOSAKI Motohiro <kosaki.motohiro(a)jp.fujitsu.com> --- mm/oom_kill.c | 13 ++++++++-----... 31 May 2010 06:30

[PATCH 1/5] oom: select_bad_process: check PF_KTHREAD instead of !mm to skip kthreads
From: Oleg Nesterov <oleg(a)redhat.com> Subject: oom: select_bad_process: check PF_KTHREAD instead of !mm to skip kthreads select_bad_process() thinks a kernel thread can't have ->mm != NULL, this is not true due to use_mm(). Change the code to check PF_KTHREAD. Signed-off-by: Oleg Nesterov <oleg(a)redhat.com> ... 31 May 2010 06:30

[PATCH 3/5] oom: introduce find_lock_task_mm() to fix !mm false positives
From: Oleg Nesterov <oleg(a)redhat.com> Subject: [PATCH 3/5] oom: introduce find_lock_task_mm() to fix !mm false positives Almost all ->mm == NUL checks in oom_kill.c are wrong. The current code assumes that the task without ->mm has already released its memory and ignores the process. However this is not necess... 31 May 2010 06:30

HWPOISON for hugepage (v6)
On Fri, May 28, 2010 at 09:29:14AM +0900, Naoya Horiguchi wrote: Hi, Here is a "HWPOISON for hugepage" patchset which reflects Mel's comments on hugepage rmapping code. Only patch 1/8 and 2/8 are changed since the previous post. Mel, could you please restart reviewing and testing? Thanks every... 31 May 2010 06:30

[PATCH] mfd-core: properly handle platform_device_add_resources fail in mfd_add_device
platform_device_add_resources may fail, thus add error checking for it. Signed-off-by: Axel Lin <axel.lin(a)gmail.com> --- drivers/mfd/mfd-core.c | 4 +++- 1 files changed, 3 insertions(+), 1 deletions(-) diff --git a/drivers/mfd/mfd-core.c b/drivers/mfd/mfd-core.c index 7dd76bc..1823a57 100644 --- a/drive... 31 May 2010 06:30