lkml.org 
[lkml]   [2008]   [Feb]   [13]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: Jeste jeden bug
[ the original mail was sent by Zdenek to me offlist ]

On Wed, 13 Feb 2008, Zdenek Kabelac wrote:

> [ 68.379022] gnome-settings-[2941] trap int3 ip:3d2c840f34
> sp:7fff36f5d100 error:0<3>BUG: sleeping function called from invalid
> context at kernel/rwsem.c:21
> [ 68.379039] in_atomic():1, irqs_disabled():0
> [ 68.379044] no locks held by gnome-settings-/2941.
> [ 68.379050] Pid: 2941, comm: gnome-settings- Not tainted 2.6.25-rc1 #30
> [ 68.379054]
> [ 68.379056] Call Trace:
> [ 68.379061] <#DB> [<ffffffff81064883>] ? __debug_show_held_locks+0x13/0x30
> [ 68.379109] [<ffffffff81036765>] __might_sleep+0xe5/0x110
> [ 68.379123] [<ffffffff812f2240>] down_read+0x20/0x70
> [ 68.379137] [<ffffffff8109cdca>] print_vma_addr+0x3a/0x110
> [ 68.379152] [<ffffffff8100f435>] do_trap+0xf5/0x170
> [ 68.379168] [<ffffffff8100f52b>] do_int3+0x7b/0xe0
> [ 68.379180] [<ffffffff812f4a6f>] int3+0x9f/0xd0
> [ 68.379203] <<EOE>>
> [ 68.379229] in libglib-2.0.so.0.1505.0[3d2c800000+dc000]

Andi,

in commit 03252919 you introduced print_vma_addr(), but this funcion for
obvious reasons takes mmap_sem, so it is not safe to call it from atomic
context (i.e. do_trap(), for example), which is behavior your patch
introduced.

--
Jiri Kosina
SUSE Labs


\
 
 \ /
  Last update: 2008-02-13 17:55    [from the cache]
©2003-2014 Jasper Spaans. Advertise on this site