lkml.org 
[lkml]   [2004]   [Oct]   [1]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
SubjectRe: 2.6.9-rc2-mm4 ps hang ?
From
Date
On Fri, 2004-10-01 at 16:49, Andrew Morton wrote:
> Badari Pulavarty <pbadari@us.ibm.com> wrote:
> >
> > Here is the full sysrq-t output.
>
> What's this guy up to?
>
> db2fmcd D 0000000000000000 0 11032 1 1373 11031 (NOTLB)
> 00000101b9b9bef8 0000000000000002 0000003700000037 00000101c13608a0
> 000000010000009f 0000010199649250 0000010199649588 0000000000000000
> 0000000000000206 ffffffff801353db
> Call Trace:<ffffffff801353db>{try_to_wake_up+971} <ffffffff80445570>{__down_write+128}
> <ffffffff80125e7f>{sys32_mmap+143} <ffffffff80124b01>{ia32_sysret+0}
>
>
> Something is seriously screwed up if it's stuck in try_to_wake_up(). Tried
> generating a few extra traces?
>
> Then again, maybe we're missing an up_read() somewhere. hrm, I'll check.
>
Doesn't make any sense..

According to my objdump

try_to_wake_up+971 ==> task_rq_unlock()

kernel/sched.c:580
265f: 48 8b 75 d0 mov
0xffffffffffffffd0(%rbp),%rsi
2663: 4c 89 ff mov %r15,%rdi
2666: e8 00 00 00 00 callq 266b
<try_to_wake_up+0x3cb>


578 static inline void task_rq_unlock(spinlock_t *rql, unsigned long
*flags)
579 {
580 spin_unlock_irqrestore(rql, *flags);
581 }

Why would I be stuck in spin_unlock() ?

Thanks,
Badari


-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2005-03-22 14:06    [W:0.086 / U:0.172 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site