Created attachment 29993 [details] boot into X, first suspend/resume went fine, second suspend/resume triggered the PGRAPH_ERROR Almost every time I suspend/resume, a PGRAPH_ERROR appears in dmesg. I cannot see any bad consequences of it, but it doesn't seem normal so I thought I would report it. [ 327.678728] [drm] nouveau 0000:01:00.0: PGRAPH_ERROR - nSource: PROTECTION_ERROR DMA_R_PROTECTION, nStatus: [ 327.678734] [drm] nouveau 0000:01:00.0: PGRAPH_ERROR - Ch 1/1 Class 0x502d Mthd 0x08dc Data 0x00000000:0x00000060 [ 327.678736] [drm] nouveau 0000:01:00.0: magic set 1: [ 327.678739] [drm] nouveau 0000:01:00.0: 0x00408900: 0x80000077 [ 327.678743] [drm] nouveau 0000:01:00.0: 0x00408904: 0xfbef7fff [ 327.678746] [drm] nouveau 0000:01:00.0: 0x00408908: 0xfff5dfff [ 327.678749] [drm] nouveau 0000:01:00.0: 0x0040890c: 0xc000d7eb [ 327.678752] [drm] nouveau 0000:01:00.0: 0x00408910: 0xffff3fef [ 327.678756] [drm] nouveau 0000:01:00.0: 0x00408e08: 0x800bbf61 [ 327.678760] [drm] nouveau 0000:01:00.0: 0x00408e0c: 0x00000000 [ 327.678763] [drm] nouveau 0000:01:00.0: 0x00408e10: 0xf6e27b40 [ 327.678766] [drm] nouveau 0000:01:00.0: 0x00408e14: 0x0000007f [ 327.678769] [drm] nouveau 0000:01:00.0: 0x00408e18: 0x001948a8 [ 327.678772] [drm] nouveau 0000:01:00.0: 0x00408e1c: 0x3dfdb57d [ 327.678775] [drm] nouveau 0000:01:00.0: 0x00408e20: 0x063f3f6b [ 327.678778] [drm] nouveau 0000:01:00.0: 0x00408e24: 0x0f33037f [ 327.678781] [drm] nouveau 0000:01:00.0: magic set 2: [ 327.678784] [drm] nouveau 0000:01:00.0: 0x00409900: 0x8000007f [ 327.678787] [drm] nouveau 0000:01:00.0: 0x00409904: 0xdf677bdf [ 327.678790] [drm] nouveau 0000:01:00.0: 0x00409908: 0xfdffbfdf [ 327.678793] [drm] nouveau 0000:01:00.0: 0x0040990c: 0xc000defd [ 327.678796] [drm] nouveau 0000:01:00.0: 0x00409910: 0xfffd3fef [ 327.678801] [drm] nouveau 0000:01:00.0: 0x00409e08: 0x800c8a49 [ 327.678804] [drm] nouveau 0000:01:00.0: 0x00409e0c: 0x00000000 [ 327.678807] [drm] nouveau 0000:01:00.0: 0x00409e10: 0xf5fb6d60 [ 327.678810] [drm] nouveau 0000:01:00.0: 0x00409e14: 0x000000fa [ 327.678813] [drm] nouveau 0000:01:00.0: 0x00409e18: 0x44906309 [ 327.678816] [drm] nouveau 0000:01:00.0: 0x00409e1c: 0xfafefee7 [ 327.678819] [drm] nouveau 0000:01:00.0: 0x00409e20: 0x05277f78 [ 327.678822] [drm] nouveau 0000:01:00.0: 0x00409e24: 0x0b33037f
Created attachment 29994 [details] xorg log. I am using X 1.7 now but had the exact same problem on 1.6
The message is harmless. You'll also so it on the first X startup after a cold boot in all likelihood. The cause isn't known exactly, but I suspect it's random garbage in the card's error reporting regs and not an actual error per se. I haven't been able to track down exactly how to avoid it as of yet. So, as long as everything works fine, ignore the message :)
In my situation, it indeed looks totally harmless. Though pgraph errors seemed to be often associated with more severe problems in the past (as I found in irc log or in the bugtracker), so I was a bit unsure. Good to know I can safely ignore it :) For some reasons, it seems more likely to trigger after suspend/resume than on a fresh boot. I saw it many times after suspend/resume and only once after a cold boot. But well that probably does not help. Anyway, everything works fine, no big deal !
I didn't see these for a very long time.
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