[Nouveau] [Bug 20341] NV31 lockup

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=20341

--- Comment #16 from Jason Detring <detringj at gmail.com> ---
Created attachment 84575
  --> https://bugs.freedesktop.org/attachment.cgi?id=84575&action=edit
Valgrind mmap trace log

Attaching valgrind mmap trace log.

Notes:
- Prior to testing the kernel was upgraded to nouveau/linux-2.6 master @
3b56bba6abaa70d629fccdcf8490e087ea3a1ab4 "drm/nv04/disp: fix framebuffer pin
refcounting" 2013-08-21 01:37:09 (GMT)

- The agpmode=0 noveau.ko parameter was removed.

- X was especially slow during the test, as expected.  This corresponds to the
note on valgrind-mmt's wiki page: "tracing slows down Xorg considerably - ~20x"

- X did not crash during this test.  The test procedure was conducted 5 times
to ensure the system didn't have a spurious nonfailure.

- This is a huge logfile.  It will expand to ~220 MB when decompressed.  This
log covers only the first test instance.

- Rerunning the test without valgrind caused the usual lockup.

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