[Bug 59904] 3DMark2000 crashes: radeon: mmap failed, errno: 12

[bugzilla-daemon@freedesktop.org]

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https://bugs.freedesktop.org/show_bug.cgi?id=59904

--- Comment #2 from Andy Furniss <lists@andyfurniss.entadsl.com> ---
(In reply to comment #0)
> Created attachment 73689 [details]
> crash backtrace
> 
> A regression was introduced into Mesa that causes 3DMark2000 to crash in the
> high detail helicopter benchmark. A bisect revealed this patch:
> 
> 68a097596efdf314ec60487a1761cac789ae2367 is the first bad commit
> commit 68a097596efdf314ec60487a1761cac789ae2367
> Author: Brian Paul <brianp@vmware.com>
> Date:   Thu Jan 24 14:44:09 2013 -0700
> 
>     util: add some defensive coding in u_upload_alloc()
> 
> The terminal output when the crash occurs is this:
> 
> radeon: mmap failed, errno: 12
> radeon: mmap failed, errno: 12
> wine: Unhandled page fault on read access to 0x00000034 at address
> 0x7cdd1e9b (thread 001f), starting debugger...
> 
> A backtrace of the crash is attached. I do not know where exactly the "mmap
> failed" lines are written.

+1 

I just bisected to this commit after getting the same running nexuiz on rv790
(with and without llvm).

Extra info from dmesg -

[drm:r600_cs_packet_next_reloc_mm] *ERROR* Relocs at -1073723904 after
relocations chunk end 4 !
radeon 0000:01:00.0: bad SET_CONTEXT_REG 0x28980
[drm:radeon_cs_ib_chunk] *ERROR* Invalid command stream !

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