All games maded with Unity engine in steam catalog crashes on AMD GPU, but worked on Intel GPU on same machine.

[Michel Dänzer]

On 2018-02-02 05:13 PM, mikhail wrote:
> On Thu, 2018-02-01 at 21:31 +0100, Marek Olšák wrote:
>>
>> Valgrind doesn't show any memory-related issue with Mesa. It does show
>> an issue with "New Unity Project". This can corrupt the heap and cause
>> a random crash on the next call of malloc/free/new/delete:
>>
>> ==17721== Mismatched free() / delete / delete []
>> ==17721==    at 0x4C311E8: operator delete(void*) (vg_replace_malloc.c:576)
>> ==17721==    by 0xD4482C: ??? (in /home/mikhail/New Unity Project/aaa.x86_64)
>> ==17721==    by 0xD315D8: ??? (in /home/mikhail/New Unity Project/aaa.x86_64)
>> ==17721==    by 0x4FD79A: ??? (in /home/mikhail/New Unity Project/aaa.x86_64)
>> ==17721==    by 0x7E6350: ??? (in /home/mikhail/New Unity Project/aaa.x86_64)
>> ==17721==    by 0x8197CC: ??? (in /home/mikhail/New Unity Project/aaa.x86_64)
>> ==17721==    by 0x4608A1: ??? (in /home/mikhail/New Unity Project/aaa.x86_64)
>> ==17721==    by 0x5D7B009: (below main) (libc-start.c:308)
>> ==17721==  Address 0x1f6bf470 is 0 bytes inside a block of size 220 alloc'd
>> ==17721==    at 0x4C308B7: operator new[](unsigned long)
>> (vg_replace_malloc.c:423)
>> ==17721==    by 0xD47CF3: ??? (in /home/mikhail/New Unity Project/aaa.x86_64)
>> ==17721==    by 0xD3EF39: ??? (in /home/mikhail/New Unity Project/aaa.x86_64)
>> ==17721==    by 0x4FD712: ??? (in /home/mikhail/New Unity Project/aaa.x86_64)
>> ==17721==    by 0x7E2B8D: ??? (in /home/mikhail/New Unity Project/aaa.x86_64)
>> ==17721==    by 0x818B52: ??? (in /home/mikhail/New Unity Project/aaa.x86_64)
>> ==17721==    by 0x4603F1: ??? (in /home/mikhail/New Unity Project/aaa.x86_64)
>> ==17721==    by 0x5D7B009: (below main) (libc-start.c:308)
>> ==17721==
>> ==17721== Mismatched free() / delete / delete []
>> ==17721==    at 0x4C311E8: operator delete(void*) (vg_replace_malloc.c:576)
>> ==17721==    by 0xD44843: ??? (in /home/mikhail/New Unity Project/aaa.x86_64)
>> ==17721==    by 0xD315D8: ??? (in /home/mikhail/New Unity Project/aaa.x86_64)
>> ==17721==    by 0x4FD79A: ??? (in /home/mikhail/New Unity Project/aaa.x86_64)
>> ==17721==    by 0x7E6350: ??? (in /home/mikhail/New Unity Project/aaa.x86_64)
>> ==17721==    by 0x8197CC: ??? (in /home/mikhail/New Unity Project/aaa.x86_64)
>> ==17721==    by 0x4608A1: ??? (in /home/mikhail/New Unity Project/aaa.x86_64)
>> ==17721==    by 0x5D7B009: (below main) (libc-start.c:308)
>> ==17721==  Address 0x1f6bf590 is 0 bytes inside a block of size 220 alloc'd
>> ==17721==    at 0x4C308B7: operator new[](unsigned long)
>> (vg_replace_malloc.c:423)
>> ==17721==    by 0xD47ED7: ??? (in /home/mikhail/New Unity Project/aaa.x86_64)
>> ==17721==    by 0xD3EF39: ??? (in /home/mikhail/New Unity Project/aaa.x86_64)
>> ==17721==    by 0x4FD712: ??? (in /home/mikhail/New Unity Project/aaa.x86_64)
>> ==17721==    by 0x7E2B8D: ??? (in /home/mikhail/New Unity Project/aaa.x86_64)
>> ==17721==    by 0x818B52: ??? (in /home/mikhail/New Unity Project/aaa.x86_64)
>> ==17721==    by 0x4603F1: ??? (in /home/mikhail/New Unity Project/aaa.x86_64)
>> ==17721==    by 0x5D7B009: (below main) (libc-start.c:308)
>>
>> Marek
> 
> 
> Tak  said: We'll investigate, but if that were the case, wouldn't it affect the intel driver the same way?
> 
> I also checked same Unity project under Valgrind on Intel GPU and see same errors in log:

It could be luck that the Unity engine's errors flagged by valgrind
result in a crash with radeonsi but not with i965.

The best course of action at this point is to fix the errors in the
Unity engine, then check if it still crashes with radeonsi.


-- 
Earthling Michel Dänzer               |               http://www.amd.com
Libre software enthusiast             |             Mesa and X developer