Bug#522602: xdm randomly crashes on logout

[Christian Kastner <techmail@kvr.at>]

Hi Julien,

Julien Cristau wrote:
> On Sun, Apr  5, 2009 at 07:40:46 +0200, Christian Kastner wrote:
> 
>> Sometimes, when I log out of XFCE4, xdm crashes. I have found four
>> different types of crashes in /var/log/xdm.log:
>>     A) Crash (with backtrace) because of 'corrupted double-linked list'
>>     B) Crash (with backtrace) because of 'double or free corruption (out)'
>>     C) Crash (with backtrace) because of 'double or free corruption (!prev)'
>>     D) Crash with no backtrace
> 
> Hi,
> 
> can either of you still reproduce this xdm crash?

Yes, this still occurs regularly. For some time, I had a suspicion that these
crashes were related to the proprietary Nvidia drivers I was using, however I am
seeing the exact some issue on my netbook (MSI Wind U100, i386, Intel onboard
graphics) as well. There, it *always* occurs, not only sometimes. This is with a
vanilla lenny + some backports.

> If so, is there any
> chance you could try running xdm under valgrind to try and track it
> down?

I will. I'll try to get this done sometime this week, it could take me until
next week or so though.

Regards,
Christian