After a cold boot today. Things looked relatively good for quite a while
(menus, youtube and glmark2). But while running glmark2 (for several
iterations):
[ 5792.435913] nouveau E[Xorg[1377]] cal_space: -16
[ 5792.515102] nouveau E[Xorg[1377]] cal_space: -16
[ 5792.597439] nouveau E[Xorg[1377]] cal_space: -16
[ 5919.120788] nouveau E[ DRM] GPU lockup - switching to software fbcon
[ 5954.064011] nouveau E[Xorg[1377]] failed to idle channel 0xcccc0000
[Xorg[1377]]
[ 5969.076012] nouveau E[Xorg[1377]] failed to idle channel 0xcccc0000
[Xorg[1377]]
[ 5984.404012] nouveau E[glmark2[3468]] failed to idle channel 0xcccc0000
[glmark2[3468]]
[ 5999.504012] nouveau E[glmark2[3468]] failed to idle channel 0xcccc0000
[glmark2[3468]]
[ 5999.515772] nouveau E[ PFIFO][0000:01:00.0] CACHE_ERROR - ch 1
[Xorg[3591]] subc 4 mthd 0x02fc data 0x00000003
[ 5999.525983] nouveau E[ PFIFO][0000:01:00.0] CACHE_ERROR - ch 1
[Xorg[3591]] subc 2 mthd 0x0300 data 0x0000000a
[ 5999.536167] nouveau E[ PFIFO][0000:01:00.0] CACHE_ERROR - ch 1
[Xorg[3591]] subc 2 mthd 0x0304 data 0x0d001000
[ 5999.546339] nouveau E[ PFIFO][0000:01:00.0] CACHE_ERROR - ch 1
[Xorg[3591]] subc 2 mthd 0x0308 data 0x0f490000
[ 5999.556519] nouveau E[ PFIFO][0000:01:00.0] CACHE_ERROR - ch 1
[Xorg[3591]] subc 2 mthd 0x030c data 0x017f0000
[ 5999.566688] nouveau E[ PFIFO][0000:01:00.0] CACHE_ERROR - ch 1
[Xorg[3591]] subc 4 mthd 0x0300 data 0x00000000
[ 5999.576862] nouveau E[ PFIFO][0000:01:00.0] CACHE_ERROR - ch 1
[Xorg[3591]] subc 4 mthd 0x0304 data 0x0026000a
[ 5999.587045] nouveau E[ PFIFO][0000:01:00.0] CACHE_ERROR - ch 1
[Xorg[3591]] subc 4 mthd 0x0308 data 0x001a0320
[ 5999.597221] nouveau E[ PFIFO][0000:01:00.0] CACHE_ERROR - ch 1
[Xorg[3591]] subc 2 mthd 0x030c data 0x01824000
[ 5999.607402] nouveau E[ PFIFO][0000:01:00.0] CACHE_ERROR - ch 1
[Xorg[3591]] subc 4 mthd 0x0300 data 0x001a0000
[ 5999.617569] nouveau E[ PFIFO][0000:01:00.0] CACHE_ERROR - ch 1
[Xorg[3591]] subc 4 mthd 0x0304 data 0x0000000a
[ 5999.627750] nouveau E[ PFIFO][0000:01:00.0] CACHE_ERROR - ch 1
[Xorg[3591]] subc 4 mthd 0x0308 data 0x023e0320
[ 5999.637918] nouveau E[ PFIFO][0000:01:00.0] CACHE_ERROR - ch 1
[Xorg[3591]] subc 2 mthd 0x030c data 0x017f0000
[ 6014.740012] nouveau E[compiz[2101]] failed to idle channel 0xcccc0000
[compiz[2101]]
[ 6029.756013] nouveau E[compiz[2101]] failed to idle channel 0xcccc0000
[compiz[2101]]
[ 6030.088616] ata7.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x6 frozen
[ 6030.095694] ata7.00: cmd a0/00:00:00:08:00/00:00:00:00:00/a0 tag 0 pio 16392
in
[ 6030.095694] res 40/00:02:00:08:00/00:00:00:00:00/a0 Emask 0x4
(timeout)
[ 6030.110361] ata7.00: status: { DRDY }
The ata timeout seems to be recovered. but after first falling back to a
textual console, I ended with something that is random colourful garbage
on screen. Serial console and ssh, still up. So this might be a
completely different failure caused by me using glmark2 (which I had not
before). And with the initial case(s) the lockup was complete and ssh
would not work anymore.
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https://bugs.launchpad.net/bugs/1375652
Title:
[Utopic] nouveau flush timeout lockups
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