* ia64 lockdep: trying to register non-static key (mm->mmap_sem)
@ 2009-11-26 3:43 Luming Yu
2009-11-26 5:52 ` Luming Yu
0 siblings, 1 reply; 2+ messages in thread
From: Luming Yu @ 2009-11-26 3:43 UTC (permalink / raw)
To: LKML; +Cc: Luck, Tony, Ingo Molnar
Anybody know how I should do to fix the lockdep
warning below, which is triggered in
ia64_brk doing "down_write(&mm->mmap_sem)"
Any comments are appreciated.
INFO: trying to register non-static key.
the code is fine but needs lockdep annotation.
turning off the locking correctness validator.
Call Trace:
[<a000000100017330>] show_stack+0x70/0xc0
sp=e0000004807a7c50 bsp=e0000004807a1c78
[<a0000001000173d0>] dump_stack+0x50/0x80
sp=e0000004807a7e20 bsp=e0000004807a1c58
[<a0000001000f7ca0>] __lock_acquire+0x1a0/0x13e0
sp=e0000004807a7e20 bsp=e0000004807a1bc0
[<a0000001000fc310>] lock_acquire+0x170/0x1e0
sp=e0000004807a7e20 bsp=e0000004807a1b60
[<a0000001008338d0>] down_write+0x70/0x180
sp=e0000004807a7e20 bsp=e0000004807a1b28
[<a00000010003b960>] ia64_brk+0x60/0x280
sp=e0000004807a7e20 bsp=e0000004807a1aa0
[<a00000010000c620>] ia64_ret_from_syscall+0x0/0x20
Thanks,
Luming
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: ia64 lockdep: trying to register non-static key (mm->mmap_sem)
2009-11-26 3:43 ia64 lockdep: trying to register non-static key (mm->mmap_sem) Luming Yu
@ 2009-11-26 5:52 ` Luming Yu
0 siblings, 0 replies; 2+ messages in thread
From: Luming Yu @ 2009-11-26 5:52 UTC (permalink / raw)
To: LKML; +Cc: Luck, Tony, Ingo Molnar
sorry for noise, I've figured it out that locdep annoatation is missed in IA64
__rwsem_initializer.
On Thu, Nov 26, 2009 at 11:43 AM, Luming Yu <luming.yu@gmail.com> wrote:
> Anybody know how I should do to fix the lockdep
> warning below, which is triggered in
> ia64_brk doing "down_write(&mm->mmap_sem)"
>
> Any comments are appreciated.
>
>
> INFO: trying to register non-static key.
> the code is fine but needs lockdep annotation.
> turning off the locking correctness validator.
>
> Call Trace:
> [<a000000100017330>] show_stack+0x70/0xc0
> sp=e0000004807a7c50 bsp=e0000004807a1c78
> [<a0000001000173d0>] dump_stack+0x50/0x80
> sp=e0000004807a7e20 bsp=e0000004807a1c58
> [<a0000001000f7ca0>] __lock_acquire+0x1a0/0x13e0
> sp=e0000004807a7e20 bsp=e0000004807a1bc0
> [<a0000001000fc310>] lock_acquire+0x170/0x1e0
> sp=e0000004807a7e20 bsp=e0000004807a1b60
> [<a0000001008338d0>] down_write+0x70/0x180
> sp=e0000004807a7e20 bsp=e0000004807a1b28
> [<a00000010003b960>] ia64_brk+0x60/0x280
> sp=e0000004807a7e20 bsp=e0000004807a1aa0
> [<a00000010000c620>] ia64_ret_from_syscall+0x0/0x20
>
>
> Thanks,
> Luming
>
^ permalink raw reply [flat|nested] 2+ messages in thread
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