lkml.org 
[lkml]   [2005]   [May]   [10]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [RFC][PATCH] timers fixes/improvements
I wonder if this problem might benifit from the "breakpoint on write" capability 
in kgdb. If you are using the kgdb in the mm patch, look in
Documentation/i386/kgdb/gdbinit.hw at the hwwbrk macro. You will, of course,
have to source this file from gdb to load the macro. Then you can use the gdb
command: help hwwbrk to get info on how to use it.

If the location is not written to too often this should help find the offender.

George
--

Christoph Lameter wrote:
> On Tue, 10 May 2005, Oleg Nesterov wrote:
>
>
>>>There is no corruption around ptype_all as you can see from the log. There
>>>is a list of hex numbers which are from ptype_all -8 to ptype_all +8.
>>>Looks okay to me.
>>
>>Still ptype_all could be accessed (and corrupted) as ptype_base[16].
>>
>>Christoph, could you please reboot with this patch?
>
>
> Ok. I added padding before and after ptype_all.
> With padding the problem no longer occurs.
>
> However, if the padding is put before ptype_base and after ptype_all
> then the problem occurs.
>
> So it looks like this is due to writes intended for ptype_base going
> out of bounds. However, there nothing in the code in net/core/dev.c
> that would allow this to happen. Also why is the list head set
> to 0x10:0x10?
>
> -
> 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/
>

--
George Anzinger george@mvista.com
High-res-timers: http://sourceforge.net/projects/high-res-timers/
-
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: 2005-05-11 03:24    [W:0.099 / U:0.072 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site