Re: system lockups and shutdowns fo running processes

From: Willy Tarreau (willy@w.ods.org)
Date: Thu Nov 14 2002 - 14:26:45 EST


Hi !

On Thu, Nov 14, 2002 at 01:27:50PM -0500, Richard B. Johnson wrote:
> On Thu, 14 Nov 2002, Thorsten Mika wrote:
> > Call Trace: [<c012f5b4>] [<c0131c47>] [<c0131eb5>] [<c010546c>]
> > Code: 07 20 07 20 07 20 07 20 07 20 07 20 07 20 07 20 07 20 07 20
> Yawn. It's trying to execute data...
> <TAB><SPC><TAB><SPC><TAB><SPC>..........
> Possible stack overflow.
 
It's not <TAB> <SPC>, it's a copy from a text video memory buffer of an empty
portion of the screen. 07 is the attribute (=color), and 20 the <SPC> which
fills empty space. So this does not look like a buffer overflow, but a use of
a bad pointer somewhere. Perhaps a race during a text scroll or something ?

BTW, <TAB> is 9 :-)

Cheers,
Willy

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This archive was generated by hypermail 2b29 : Fri Nov 15 2002 - 22:00:34 EST