Displaying 5 results from an estimated 5 matches for "purge_lock".
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2009 Sep 09
4
Dmesg log for 2.6.31-rc8 kernel been built on F12 (rawhide) vs log for same kernel been built on F11 and installed on F12
Previous 2.6.31-rc8 kernel was built on F11 and installed with modules on F12.
Current kernel has been built on F12 (2.6.31-0.204.rc9.fc12.x86_64) and installed
on F12 before loading under Xen 3.4.1.
Dmesg log looks similar to Michael Yuong''s ''rc7.git4'' kernel for F12.
Boris.
--- On Tue, 9/8/09, Boris Derzhavets <bderzhavets@yahoo.com> wrote:
From: Boris
2015 Feb 06
0
[PATCH] x86 spinlock: Fix memory corruption on completing completions
...ed-by: Linus Torvalds <torvalds at linux-foundation.org>
> Signed-off-by: Raghavendra K T <raghavendra.kt at linux.vnet.ibm.com>
With this patch, my VMs lock up quickly after boot with:
[ 161.613469] BUG: spinlock lockup suspected on CPU#31, kworker/31:1/5213
[ 161.613469] lock: purge_lock.28981+0x0/0x40, .magic: dead4ead, .owner: kworker/7:1/6400, .owner_cpu: 7
[ 161.613469] CPU: 31 PID: 5213 Comm: kworker/31:1 Not tainted 3.19.0-rc7-next-20150204-sasha-00048-gee3a350 #1869
[ 161.613469] Workqueue: events bpf_prog_free_deferred
[ 161.613469] 0000000000000000 00000000f03dd27f fff...
2015 Feb 06
0
[PATCH] x86 spinlock: Fix memory corruption on completing completions
...ed-by: Linus Torvalds <torvalds at linux-foundation.org>
> Signed-off-by: Raghavendra K T <raghavendra.kt at linux.vnet.ibm.com>
With this patch, my VMs lock up quickly after boot with:
[ 161.613469] BUG: spinlock lockup suspected on CPU#31, kworker/31:1/5213
[ 161.613469] lock: purge_lock.28981+0x0/0x40, .magic: dead4ead, .owner: kworker/7:1/6400, .owner_cpu: 7
[ 161.613469] CPU: 31 PID: 5213 Comm: kworker/31:1 Not tainted 3.19.0-rc7-next-20150204-sasha-00048-gee3a350 #1869
[ 161.613469] Workqueue: events bpf_prog_free_deferred
[ 161.613469] 0000000000000000 00000000f03dd27f fff...
2015 Feb 06
10
[PATCH] x86 spinlock: Fix memory corruption on completing completions
Paravirt spinlock clears slowpath flag after doing unlock.
As explained by Linus currently it does:
prev = *lock;
add_smp(&lock->tickets.head, TICKET_LOCK_INC);
/* add_smp() is a full mb() */
if (unlikely(lock->tickets.tail & TICKET_SLOWPATH_FLAG))
__ticket_unlock_slowpath(lock, prev);
which
2015 Feb 06
10
[PATCH] x86 spinlock: Fix memory corruption on completing completions
Paravirt spinlock clears slowpath flag after doing unlock.
As explained by Linus currently it does:
prev = *lock;
add_smp(&lock->tickets.head, TICKET_LOCK_INC);
/* add_smp() is a full mb() */
if (unlikely(lock->tickets.tail & TICKET_SLOWPATH_FLAG))
__ticket_unlock_slowpath(lock, prev);
which