Re: interference on display, Intel 945GM, 32bit system, kernel next

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On Sun, Jul 19, 2015 at 08:07:19PM +0200, Krzysztof Kolasa wrote:
> Photo laptop screen:
> 
> https://drive.google.com/open?id=0B1LAMAFWTdeweTJycjFoZkNSVmM
> 
> bisected first bad commit: [0875546c5318c85c13d07014af5350e9000bc9e9] drm/i915: Fix up the vma aliasing ppgtt binding

Are you sure about this bisect results? This changes logic used on gen6+
and shouldn't ever affect your gen3 device. The display corruption is
totally normal for gen3, it usually does that when the gpu hangs. Often a
gpu hang is caused by userspace, are you sure you didn't upgrade anything
else than the kernel?

And we need the full error dump, you cut out the interesting bits ;-)

Thanks, Daniel
> 
> crash dump /sys/class/drm/card0/error :
> 
> GPU HANG: ecode 3:0:0x0063ffe6, in Xorg [1221], reason: Ring hung, action: reset
> Time: 1437324820 s 168714 us
> Kernel: 4.2.0-rc2-winsoft-x86+
> Active process (on ring render): Xorg [1221]
> Reset count: 0
> Suspend count: 1
> PCI ID: 0x27a2
> EIR: 0x00000000
> IER: 0x00020053
> PGTBL_ER: 0x00000000
> FORCEWAKE: 0x00000000
> DERRMR: 0x00000000
> CCID: 0x00000000
> Missed interrupts: 0x00000000
>   fence[0] = 08b00021
>   fence[1] = 02800341
>   fence[2] = 04000331
>   fence[3] = 05000341
>   fence[4] = 08c00001
>   fence[5] = 08800011
>   fence[6] = 0a100001
>   fence[7] = 09f00011
>   fence[8] = 0a800341
>   fence[9] = 07000231
>   fence[10] = 03900001
>   fence[11] = 0a200001
>   fence[12] = 00000000
>   fence[13] = 00000000
>   fence[14] = 00000000
>   fence[15] = 02000341
>   INSTDONE_0: 0x7fffffc1
>   INSTDONE_1: 0x00000000
>   INSTDONE_2: 0x00000000
>   INSTDONE_3: 0x00000000
> render command stream:
>   START: 0x00000000
>   HEAD:  0x00a13778
>   TAIL:  0x000137e0
>   CTL:   0x0001f001
>   HWS:   0x00000000
>   ACTHD: 0x00000000 090088cc
>   IPEIR: 0x00000000
>   IPEHR: 0x7f9c0027
>   INSTDONE: 0x7fffffc1
>   INSTPM: 0x00000800
>   FADDR: 0x00000000 090090c0
>   seqno: 0x000477e8
>   waiting: yes
>   ring->head: 0x0001fe88
>   ring->tail: 0x000137e0
>   hangcheck: hung [40]
> vm[0]
>   Active [17]:
>     09004000    20480 7e 00 [ 477e9 00 00 00 00 ] 00 dirty uncached
>     08a4c000     4096 7e 00 [ 477ea 00 00 00 00 ] 00 dirty uncached
>     05000000  7340032 36 00 [ 477ea 00 00 00 00 ] 477ea X dirty render uncached (fence: 3)
>     02800000  6553600 36 00 [ 477ea 00 00 00 00 ] 477ea X dirty render uncached (name: 3) (fence: 1)
>     06000000  7340032 37 00 [ 477ea 00 00 00 00 ] 00 X uncached
>     08a44000    32768 76 00 [ 477ea 00 00 00 00 ] 00 dirty uncached
>     06800000  6553600 37 00 [ 477ea 00 00 00 00 ] 00 X uncached (name: 7)
>     08800000   655360 36 00 [ 477ea 00 00 00 00 ] 00 X dirty uncached (name: 8) (fence: 5)
>     03000000  6553600 37 00 [ 477ea 00 00 00 00 ] 00 X uncached (name: 10)
>     0b000000     4096 37 00 [ 477ea 00 00 00 00 ] 00 uncached
>     06f00000   786432 37 00 [ 477ea 00 00 00 00 ] 00 X uncached
>     07a00000     4096 7e 00 [ 477eb 00 00 00 00 ] 00 dirty uncached
>     04000000  6553600 02 00 [ 477eb 00 00 00 00 ] 477eb X dirty render uncached (name: 9) (fence: 2)
>     07000000  2654208 02 00 [ 477eb 00 00 00 00 ] 477eb X dirty render uncached (fence: 9)
>     07c00000  4194304 37 00 [ 477eb 00 00 00 00 ] 00 Y uncached
>     03a00000   262144 06 00 [ 477eb 00 00 00 00 ] 477eb Y dirty render uncached
>     08a04000   262144 76 00 [ 477eb 00 00 00 00 ] 00 dirty uncached
>   Pinned [3]:
>     00000000   131072 40 40 [ 00 00 00 00 00 ] 00 P dirty uncached
>     00020000  4096000 40 00 [ 00 00 00 00 00 ] 00 P dirty uncached (name: 1)
>     02000000  6553600 02 00 [ 00 00 00 00 00 ] 00 P X dirty uncached (name: 4) (fence: 15)
> render ring (submitted by Xorg [1221]) --- gtt_offset = 0x09004000
> 00000000 :  6ba008a1
> 00000004 :  76fac688
> 00000008 :  7d040783
> 0000000c :  00000000
> 00000010 :  009020c0
> 00000014 :  00000000
> <<<<<<<<<<<<<<<<<<....................................... ( cut section of the file )
> 00004fe0 :  00000000
> 00004fe4 :  00000000
> 00004fe8 :  00000000
> 00004fec :  00000000
> 00004ff0 :  00000000
> 00004ff4 :  00000000
> 00004ff8 :  00000000
> 00004ffc :  00000000
> render ring --- 3 requests
>   seqno 0x000477e9, emitted 526211, tail 0x00013780
>   seqno 0x000477ea, emitted 526212, tail 0x000137a8
>   seqno 0x000477eb, emitted 526212, tail 0x000137d0
> render ring --- ringbuffer = 0x00000000
> 00000000 :  02000001
> 00000004 :  00000000
> 00000008 :  18800080
> 0000000c :  037c0001
> 00000010 :  02000000
> 00000014 :  00000000
> 00000018 :  10800001
> 0000001c :  000000c0
> 00000020 :  00047020
> <<<<<<<<<<<<<<<<<<...................................... ( cut section of the file )
> 0001ffdc :  00000000
> 0001ffe0 :  18800080
> 0001ffe4 :  037c0001
> 0001ffe8 :  02000000
> 0001ffec :  00000000
> 0001fff0 :  10800001
> 0001fff4 :  000000c0
> 0001fff8 :  0004701f
> 0001fffc :  01000000
> Num Pipes: 2
> Pipe [0]:
>   Power: on
>   SRC: 00000000
>   STAT: 10000000
> Plane [0]:
>   CNTR: d9000000
>   STRIDE: 00002000
>   SIZE: 031f04ff
>   POS: 00000000
>   ADDR: 02000000
> Cursor [0]:
>   CNTR: 00000000
>   POS: 00000000
>   BASE: 00000000
> Pipe [1]:
>   Power: on
>   SRC: 04ff031f
>   STAT: 10000202
> Plane [1]:
>   CNTR: 00000000
>   STRIDE: 00000000
>   SIZE: 00000000
>   POS: 00000000
>   ADDR: 00000000
> Cursor [1]:
>   CNTR: 00000000
>   POS: 00000000
>   BASE: 00000000
> CPU transcoder: A
>   Power: on
>   CONF: 00000000
>   HTOTAL: 00000000
>   HBLANK: 00000000
>   HSYNC: 00000000
>   VTOTAL: 00000000
>   VBLANK: 00000000
>   VSYNC: 00000000
> CPU transcoder: B
>   Power: on
>   CONF: 80000000
>   HTOTAL: 057f04ff
>   HBLANK: 057f04ff
>   HSYNC: 05340514
>   VTOTAL: 032f031f
>   VBLANK: 032f031f
>   VSYNC: 03270323
> 
> ------------------------------------------
> kernel log:
> 
> ul 19 18:53:40 AMILO-V3405 kernel: [ 2408.992093] [drm] stuck on render ring
> Jul 19 18:53:40 AMILO-V3405 kernel: [ 2408.993832] [drm] GPU HANG: ecode 3:0:0x0063ffe6, in Xorg [1221], reason: Ring hung, action: reset
> Jul 19 18:53:40 AMILO-V3405 kernel: [ 2408.993837] [drm] GPU hangs can indicate a bug anywhere in the entire gfx stack, including userspace.
> Jul 19 18:53:40 AMILO-V3405 kernel: [ 2408.993840] [drm] Please file a _new_ bug report on bugs.freedesktop.org against DRI -> DRM/Intel
> Jul 19 18:53:40 AMILO-V3405 kernel: [ 2408.993844] [drm] drm/i915 developers can then reassign to the right component if it's not a kernel issue.
> Jul 19 18:53:40 AMILO-V3405 kernel: [ 2408.993847] [drm] The gpu crash dump is required to analyze gpu hangs, so please always attach it.
> Jul 19 18:53:40 AMILO-V3405 kernel: [ 2408.993850] [drm] GPU crash dump saved to /sys/class/drm/card0/error
> Jul 19 18:53:40 AMILO-V3405 kernel: [ 2408.993872] kobject: 'card0' (f4d34a08): kobject_uevent_env
> Jul 19 18:53:40 AMILO-V3405 kernel: [ 2408.993883] kobject: 'card0' (f4d34a08): fill_kobj_path: path = '/devices/pci0000:00/0000:00:02.0/drm/card0'
> Jul 19 18:53:40 AMILO-V3405 kernel: [ 2408.993951] kobject: 'card0' (f4d34a08): kobject_uevent_env
> Jul 19 18:53:40 AMILO-V3405 kernel: [ 2408.993959] kobject: 'card0' (f4d34a08): fill_kobj_path: path = '/devices/pci0000:00/0000:00:02.0/drm/card0'
> Jul 19 18:53:40 AMILO-V3405 kernel: [ 2409.449556] drm/i915: Resetting chip after gpu hang
> Jul 19 18:53:40 AMILO-V3405 kernel: [ 2409.802227] kobject: 'card0' (f4d34a08): kobject_uevent_env
> Jul 19 18:53:40 AMILO-V3405 kernel: [ 2409.802243] kobject: 'card0' (f4d34a08): fill_kobj_path: path = '/devices/pci0000:00/0000:00:02.0/drm/card0'
> Jul 19 18:53:49 AMILO-V3405 systemd[1]: Started Session c4 of user krzysiek.
> Jul 19 18:53:49 AMILO-V3405 systemd[1]: Starting Session c4 of user krzysiek.
> Jul 19 18:54:52 AMILO-V3405 kernel: [ 2481.446128] IQK:Start!!!
> Jul 19 18:54:52 AMILO-V3405 kernel: [ 2481.457252] Path A IQK Success!!
> Jul 19 18:54:52 AMILO-V3405 kernel: [ 2481.465129] Path A IQK Success!!
> Jul 19 18:54:52 AMILO-V3405 kernel: [ 2481.469895] IQK: final_candidate is 0
> Jul 19 18:54:52 AMILO-V3405 kernel: [ 2481.469902] IQK: RegE94=105 RegE9C=b RegEA4=fb RegEAC=6 RegEB4=0 RegEBC=0 RegEC4=0 RegECC=0
> Jul 19 18:54:52 AMILO-V3405 kernel: [ 2481.469902]  Path A IQ Calibration Success !
> Jul 19 18:51:48 AMILO-V3405 gnome-session[1863]: message repeated 6 times: [ (gnome-shell:1962): mutter-WARNING **: STACK_OP_RAISE_ABOVE: window 0x5b01a00019 not in stack]
> Jul 19 19:00:28 AMILO-V3405 gnome-session[1863]: (gnome-screensaver:2048): GLib-CRITICAL **: Source ID 46 was not found when attempting to remove it
> Jul 19 19:00:32 AMILO-V3405 kernel: [ 2820.832165] kobject: 'card0' (f4d34a08): kobject_uevent_env
> Jul 19 19:00:32 AMILO-V3405 kernel: [ 2820.832187] kobject: 'card0' (f4d34a08): fill_kobj_path: path = '/devices/pci0000:00/0000:00:02.0/drm/card0'
> Jul 19 19:00:49 AMILO-V3405 kernel: [ 2837.992184] [drm] stuck on render ring
> Jul 19 19:00:49 AMILO-V3405 kernel: [ 2837.993868] [drm] GPU HANG: ecode 3:0:0x7affffc1, in Xorg [1221], reason: Ring hung, action: reset
> Jul 19 19:00:49 AMILO-V3405 kernel: [ 2837.993891] i915: render error detected, EIR: 0x00000010
> Jul 19 19:00:49 AMILO-V3405 kernel: [ 2837.994019] i915: page table error
> Jul 19 19:00:49 AMILO-V3405 kernel: [ 2838.002100] i915:   PGTBL_ER: 0x00200000
> Jul 19 19:00:49 AMILO-V3405 kernel: [ 2838.010328] [drm:i915_handle_error [i915]] *ERROR* EIR stuck: 0x00000010, masking
> Jul 19 19:00:49 AMILO-V3405 kernel: [ 2838.018292] kobject: 'card0' (f4d34a08): kobject_uevent_env
> Jul 19 19:00:49 AMILO-V3405 kernel: [ 2838.018980] kobject: 'card0' (f4d34a08): fill_kobj_path: path = '/devices/pci0000:00/0000:00:02.0/drm/card0'
> Jul 19 19:00:49 AMILO-V3405 kernel: [ 2838.019799] kobject: 'card0' (f4d34a08): kobject_uevent_env
> Jul 19 19:00:49 AMILO-V3405 kernel: [ 2838.019812] kobject: 'card0' (f4d34a08): fill_kobj_path: path = '/devices/pci0000:00/0000:00:02.0/drm/card0'
> Jul 19 19:00:49 AMILO-V3405 kernel: [ 2838.065113] drm/i915: Resetting chip after gpu hang
> Jul 19 19:00:49 AMILO-V3405 kernel: [ 2838.416909] kobject: 'card0' (f4d34a08): kobject_uevent_env
> Jul 19 19:00:49 AMILO-V3405 kernel: [ 2838.416932] kobject: 'card0' (f4d34a08): fill_kobj_path: path = '/devices/pci0000:00/0000:00:02.0/drm/card0'
> 
> ---------------------------------------------
> Krzysztof
> 
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-- 
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch
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