lkml.org 
[lkml]   [2006]   [Aug]   [18]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH 2.6.18-rc4 00/10] Kernel memory leak detector 0.9
On 18/08/06, Catalin Marinas <catalin.marinas@gmail.com> wrote:
> On 18/08/06, Michal Piotrowski <michal.k.k.piotrowski@gmail.com> wrote:
> > cat /sys/kernel/debug/memleak + LTP + patching repo = oops?
> >
> > BUG: unable to handle kernel paging request at virtual address 6b6b6b6b
>
> I got this as well today on an 4-CPU ARM platform. I changed some list
> traversal to the RCU variants but forgot to change the list_del/add. I
> attach another patch which fixes this (haven't tested it extensively
> yet).

Thanks.

I just added your "Fix memory leak in vc_resize/vc_allocate" patch to
my series file.

orphan pointer 0xc6110000 (size 12288):
c017480e: <__kmalloc>
c024dda4: <vc_resize>
c020ed9c: <fbcon_startup>
c0251028: <register_con_driver>
c02511e0: <take_over_console>
c020e21e: <fbcon_takeover>
c0212b08: <fbcon_fb_registered>
c0212ce1: <fbcon_event_notify>
orphan pointer 0xf55b0000 (size 8208):
c017480e: <__kmalloc>
c0211bb8: <fbcon_set_font>
c0251b17: <con_font_set>
c0251c7b: <con_font_op>
c0249a97: <vt_ioctl>
c024432e: <tty_ioctl>
c0189fd1: <do_ioctl>
c018a269: <vfs_ioctl>

This is interesting. Is it too large?
orphan pointer 0xfe09f000 (size 4194304):
c016cb9c: <__vmalloc_node>
c016cbb2: <__vmalloc>
c016cbc7: <vmalloc>
fdd3bbe1: <txInit>
fdd23b73: <init_jfs_fs>
c0149fea: <sys_init_module>

A simple way to reproduce:

while true
do
sudo mount -o loop -t jfs /home/fs-farm/jfs.img /mnt/fs-farm/jfs/
sudo umount /mnt/fs-farm/jfs/
done

A large collection of false positives :)
http://www.stardust.webpages.pl/files/o_bugs/kmemleak-0.9/ml_collection/ml1.tar

>
> Thanks.
>
> --
> Catalin
>
>
>

Regards,
Michal

--
Michal K. K. Piotrowski
LTG - Linux Testers Group
(http://www.stardust.webpages.pl/ltg/wiki/)
-
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: 2006-08-19 00:53    [W:0.090 / U:0.328 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site