Re: [Chromium-users] Crash with multitile-sort

[Paul M. <p.e...@ru...>]

Brian Paul wrote:

> Paul Melis wrote:
>
>> Paul Melis wrote:
>>
>>
>>> Hello,
>>> While attempting to create a multi-tilesort configuration based on 
>>> the multitilesort.conf file included with CR1.9 two things happen:
>>> 1. I get a warning about the state tracker being re-initialized
>>> 2. One of the crservers crashes (backtrace from the coredump shows 
>>> it to be in crSPUCopyDispatchTable()).
>>>
>>>
>>
>> Just a bit more info, the crash is happening in spu_loader/spucopy.c, 
>> crSPUCopyDispatchTable().
>> In the first for-loop, the assignment temp = dst->copy_of->copyList 
>> sets temp to 0x1, which is later used as temp->copy.
>>
>> #0  0x5557f040 in crSPUCopyDispatchTable (dst=0x80d62c0, 
>> src=0x817d8c8) at spucopy.c:630
>> 630                             if (temp->copy == dst)
>> (gdb) bt
>> #0  0x5557f040 in crSPUCopyDispatchTable (dst=0x80d62c0, 
>> src=0x817d8c8) at spucopy.c:630
>> #1  0x08087fc5 in crStateDiffAPI (api=0x817d8c8) at state_flush.c:33
>> #2  0x080515e0 in crServerInit (argc=1, argv=0xffffd494) at 
>> server_main.c:240
>> #3  0x08051655 in CRServerMain (argc=1, argv=0xffffd494) at 
>> server_main.c:254
>> #4  0x08051012 in main (argc=1, argv=0xffffd494) at main.c:22
>> (gdb) p temp
>> $1 = (struct _copy_list_node *) 0x1
>> (gdb) p dst->copy_of
>> $2 = (struct _spu_dispatch_table *) 0xffffa520
>> (gdb)
>
>
> The demo was crashing for me too, but in a different way. I've checked 
> in fixes to tilesortspu_get.c and state_bufferobject.c that fixed 
> things here.  Can you try the current CVS code?

I'm sorry to say it doesn't fix the crash I'm experiencing. The stack 
trace above is still valid. I've attached a reduced version of my 
original configuration script. This shows the crash for me when running 
with e.g. "python multitilesort_crash.conf glxgears", but other apps 
fail in the same way.

I had some trouble figuring out how exactly to set up the tiling 
parameters for this setup, so I might be doing something unusual there.

Paul


-- 
Paul Melis

VR Specialist,
Center for High-Performance Computing & Visualization,
University of Groningen,
The Netherlands

T: +31 50 363 9298
E: p.e...@ru...
W: http://www.rug.nl/rc/hpcv/index