[Bug 90851] radeonsi on pitcairn: nine and skyrim - unable to handle kernel paging request

[bugzilla-daemon at bugzilla.kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=90851

--- Comment #3 from Christoph Haag <haagch.christoph at googlemail.com> ---
Hm, interesting. I compiled 3.19-rc4 with debug symbols.

I'm also testing Tom Stellard's VGPR register spilling llvm and mesa branches.

After a while of playing skyrim I got the familiar hang where skyrim just
freezes, but I did NOT get "BUG: unable to handle kernel paging request" in the
system log.

Instead I got this in the terminal from which I started skyrim:

radeon: mmap failed, errno: 12
radeon: mmap failed, errno: 12
radeon: mmap failed, errno: 12
radeon: mmap failed, errno: 12

I'm not very good with the wine debugger... Attaching to the TESV.exe process
and then getting a backtrace shows:

Wine-dbg>bt
Backtrace:
=>0 0xf7702bee __kernel_vsyscall+0xe() in [vdso].so (0x7eada510)
  1 0xf7514e02 __lll_lock_wait+0x21() in libpthread.so.0 (0x7eada510)
  2 0xf750f5ae __GI___pthread_mutex_lock+0x8d() in libpthread.so.0 (0x7eada510)
  3 0xed73ba1d in d3dadapter9.so.1 (+0x128a1c) (0x7eada510)
  4 0x0069df9c in tesv (+0x29df9b) (0x7eada510)
  5 0xfff0e400 (0x526077e9)

I would try to find out where exactly in d3dadapter9.so.1 this happens but I
don't get how to properly attach winedbg --gdb and addr2linux didn't give a
line with code, so I probably used it wrong.

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