[Nouveau] [Bug 79823] [NV30/gallium] Mozilla apps freeze on startup with nouveau-dri-10.2.1 libs on dual-screen

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=79823

--- Comment #15 from Natrio <natrio at list.ru> ---
Bug not only with mozilla, but glxinfo:

-- Version 10.2.1:
 freeze afrer end of (normal) output, and print this to stderr:
nouveau: kernel rejected pushbuf: Bad file descriptor
nouveau: ch0: krec 0 pushes 1 bufs 1 relocs 0
nouveau: ch0: buf 00000000 00000002 00000004 00000004 00000000
nouveau: ch0: psh 00000000 0000000140 0000000154
nouveau:        0x0008fd6c
nouveau:        0x00000000
nouveau:        0x00000004
nouveau:        0x00020000
nouveau:        0x00000000

-- Version 10.2.1 (reverted patch):
 seems to bee ok.

-- Version 10.1.4 (from repository):
 segfault after (normal) output, in dmesg:
glxinfo[9715]: segfault at 88 ip b6d88829 sp bffa4420 error 4 in
nouveau_dri.so[b6a37000+64a000]

-- Last revision before bisected commit:
 seems to bee ok.

-- Bisected commit:
 freeze, stderr:
nouveau: kernel rejected pushbuf: Bad file descriptor
nouveau: ch0: krec 0 pushes 1 bufs 1 relocs 0
nouveau: ch0: buf 00000000 00000002 00000004 00000004 00000000
nouveau: ch0: psh 00000000 0000000140 0000000154
nouveau:        0x0008fd6c
nouveau:        0x00000000
nouveau:        0x00000004
nouveau:        0x00020000
nouveau:        0x00000000

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