From mboxrd@z Thu Jan  1 00:00:00 1970
From: Jamie Heilman <jamie@audible.transient.net>
Subject: Re: [Nouveau] nouveau regression post v5.8, still present in v5.10
Date: Mon, 4 Jan 2021 17:23:02 +0000
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To: Karol Herbst <kherbst@redhat.com>
Cc: Ben Skeggs <bskeggs@redhat.com>, LKML <linux-kernel@vger.kernel.org>, nouveau <nouveau@lists.freedesktop.org>
List-Id: nouveau.vger.kernel.org

Karol Herbst wrote:
> do you think you'd be able to do a kernel bisect in order to pinpoint
> the actual commit causing it? Thanks

No.  I can't reproduce it reliably.  I if I could, bisection wouldn't
be a problem but as I can't and as it can take weeks for the problem
to occur there's essentially no chance.  I know it regressed roughly
in 5.8-rc1 only because that's what I was running when the first event
occured.

> On Sun, Dec 27, 2020 at 8:16 PM Jamie Heilman
> <jamie@audible.transient.net> wrote:
> >
> > Something between v5.8 and v5.9 has resulted in periodically losing video.
> > Unfortunately, I can't reliably reproduce it, it seems to happen every
> > once in a long while---I can go weeks without an occurance, but it
> > always seems to happen after my workstation has been idle long enough
> > to screen blank and put the monitor to sleep.  I'm using a single
> > display (Dell 2405FPW) connected via DVI, running X (Xorg 1.20.x from
> > Debian sid).  I don't really do anything fancy, xterms, a browser or
> > two, play the occasional video, but like I said, I can't reliably
> > reproduce this.  I've had it happen about 11 times since August.
> >
> > lspci -vv output is:
> >
> > 01:00.0 VGA compatible controller: NVIDIA Corporation G86 [Quadro NVS 290] (rev a1) (prog-if 00 [VGA controller])
> >         Subsystem: NVIDIA Corporation G86 [Quadro NVS 290]
> >         Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+
> >         Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
> >         Latency: 0, Cache Line Size: 64 bytes
> >         Interrupt: pin A routed to IRQ 28
> >         Region 0: Memory at fc000000 (32-bit, non-prefetchable) [size=16M]
> >         Region 1: Memory at d0000000 (64-bit, prefetchable) [size=256M]
> >         Region 3: Memory at fa000000 (64-bit, non-prefetchable) [size=32M]
> >         Region 5: I/O ports at dc80 [size=128]
> >         Expansion ROM at 000c0000 [disabled] [size=128K]
> >         Capabilities: [60] Power Management version 2
> >                 Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-)
> >                 Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-
> >         Capabilities: [68] MSI: Enable+ Count=1/1 Maskable- 64bit+
> >                 Address: 00000000fee01004  Data: 4023
> >         Capabilities: [78] Express (v1) Endpoint, MSI 00
> >                 DevCap: MaxPayload 128 bytes, PhantFunc 0, Latency L0s <512ns, L1 <4us
> >                         ExtTag+ AttnBtn- AttnInd- PwrInd- RBE+ FLReset- SlotPowerLimit 25.000W
> >                 DevCtl: CorrErr- NonFatalErr+ FatalErr+ UnsupReq-
> >                         RlxdOrd+ ExtTag+ PhantFunc- AuxPwr- NoSnoop+
> >                         MaxPayload 128 bytes, MaxReadReq 512 bytes
> >                 DevSta: CorrErr- NonFatalErr- FatalErr- UnsupReq- AuxPwr- TransPend-
> >                 LnkCap: Port #0, Speed 2.5GT/s, Width x16, ASPM L0s L1, Exit Latency L0s <512ns, L1 <4us
> >                         ClockPM- Surprise- LLActRep- BwNot- ASPMOptComp-
> >                 LnkCtl: ASPM Disabled; RCB 64 bytes, Disabled- CommClk+
> >                         ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt-
> >                 LnkSta: Speed 2.5GT/s (ok), Width x16 (ok)
> >                         TrErr- Train- SlotClk+ DLActive- BWMgmt- ABWMgmt-
> >         Capabilities: [100 v1] Virtual Channel
> >                 Caps:   LPEVC=0 RefClk=100ns PATEntryBits=1
> >                 Arb:    Fixed- WRR32- WRR64- WRR128-
> >                 Ctrl:   ArbSelect=Fixed
> >                 Status: InProgress-
> >                 VC0:    Caps:   PATOffset=00 MaxTimeSlots=1 RejSnoopTrans-
> >                         Arb:    Fixed- WRR32- WRR64- WRR128- TWRR128- WRR256-
> >                         Ctrl:   Enable+ ID=0 ArbSelect=Fixed TC/VC=01
> >                         Status: NegoPending- InProgress-
> >         Capabilities: [128 v1] Power Budgeting <?>
> >         Capabilities: [600 v1] Vendor Specific Information: ID=0001 Rev=1 Len=024 <?>
> >         Kernel driver in use: nouveau
> >
> > The last time this happened, this is what got logged:
> >
> > nouveau 0000:01:00.0: disp: ERROR 5 [INVALID_STATE] 06 [] chid 1 mthd 0080 data 00000001
> > nouveau 0000:01:00.0: disp: Base 1:
> > nouveau 0000:01:00.0: disp:        0084: 00000000
> > nouveau 0000:01:00.0: disp:        0088: 00000000
> > nouveau 0000:01:00.0: disp:        008c: 00000000
> > nouveau 0000:01:00.0: disp:        0090: 00000000
> > nouveau 0000:01:00.0: disp:        0094: 00000000
> > nouveau 0000:01:00.0: disp:        00a0: 00000060 -> 00000070
> > nouveau 0000:01:00.0: disp:        00a4: 00000000 -> f0000000
> > nouveau 0000:01:00.0: disp:        00c0: 00000000
> > nouveau 0000:01:00.0: disp:        00c4: 00000000
> > nouveau 0000:01:00.0: disp:        00c8: 00000000
> > nouveau 0000:01:00.0: disp:        00cc: 00000000
> > nouveau 0000:01:00.0: disp:        00e0: 40000000
> > nouveau 0000:01:00.0: disp:        00e4: 00000000
> > nouveau 0000:01:00.0: disp:        00e8: 00000000
> > nouveau 0000:01:00.0: disp:        00ec: 00000000
> > nouveau 0000:01:00.0: disp:        00fc: 00000000
> > nouveau 0000:01:00.0: disp:        0100: fffe0000
> > nouveau 0000:01:00.0: disp:        0104: 00000000
> > nouveau 0000:01:00.0: disp:        0110: 00000000
> > nouveau 0000:01:00.0: disp:        0114: 00000000
> > nouveau 0000:01:00.0: disp: Base 1 - Image 0:
> > nouveau 0000:01:00.0: disp:        0800: 00009500
> > nouveau 0000:01:00.0: disp:        0804: 00000000
> > nouveau 0000:01:00.0: disp:        0808: 04b00780
> > nouveau 0000:01:00.0: disp:        080c: 00007804
> > nouveau 0000:01:00.0: disp:        0810: 0000cf00
> > nouveau 0000:01:00.0: disp: Base 1 - Image 1:
> > nouveau 0000:01:00.0: disp:        0c00: 00009500
> > nouveau 0000:01:00.0: disp:        0c04: 00000000
> > nouveau 0000:01:00.0: disp:        0c08: 04b00780
> > nouveau 0000:01:00.0: disp:        0c0c: 00007804
> > nouveau 0000:01:00.0: disp:        0c10: 0000cf00
> > nouveau 0000:01:00.0: disp: ERROR 5 [INVALID_STATE] 06 [] chid 1 mthd 0080 data 00000001
> > nouveau 0000:01:00.0: disp: Base 1:
> > nouveau 0000:01:00.0: disp:        0084: 00000000
> > nouveau 0000:01:00.0: disp:        0088: 00000000
> > nouveau 0000:01:00.0: disp:        008c: 00000000
> > nouveau 0000:01:00.0: disp:        0090: 00000000
> > nouveau 0000:01:00.0: disp:        0094: 00000000
> > nouveau 0000:01:00.0: disp:        00a0: 00000060 -> 00000070
> > nouveau 0000:01:00.0: disp:        00a4: 00000000 -> f0000000
> > nouveau 0000:01:00.0: disp:        00c0: 00000000
> > nouveau 0000:01:00.0: disp:        00c4: 00000000
> > nouveau 0000:01:00.0: disp:        00c8: 00000000
> > nouveau 0000:01:00.0: disp:        00cc: 00000000
> > nouveau 0000:01:00.0: disp:        00e0: 40000000
> > nouveau 0000:01:00.0: disp:        00e4: 00000000
> > nouveau 0000:01:00.0: disp:        00e8: 00000000
> > nouveau 0000:01:00.0: disp:        00ec: 00000000
> > nouveau 0000:01:00.0: disp:        00fc: 00000000
> > nouveau 0000:01:00.0: disp:        0100: fffe0000
> > nouveau 0000:01:00.0: disp:        0104: 00000000
> > nouveau 0000:01:00.0: disp:        0110: 00000000
> > nouveau 0000:01:00.0: disp:        0114: 00000000
> > nouveau 0000:01:00.0: disp: Base 1 - Image 0:
> > nouveau 0000:01:00.0: disp:        0800: 00009500
> > nouveau 0000:01:00.0: disp:        0804: 00000000
> > nouveau 0000:01:00.0: disp:        0808: 04b00780
> > nouveau 0000:01:00.0: disp:        080c: 00007804
> > nouveau 0000:01:00.0: disp:        0810: 0000cf00
> > nouveau 0000:01:00.0: disp: Base 1 - Image 1:
> > nouveau 0000:01:00.0: disp:        0c00: 00009500
> > nouveau 0000:01:00.0: disp:        0c04: 00000000
> > nouveau 0000:01:00.0: disp:        0c08: 04b00780
> > nouveau 0000:01:00.0: disp:        0c0c: 00007804
> > nouveau 0000:01:00.0: disp:        0c10: 0000cf00
> > nouveau 0000:01:00.0: DRM: core notifier timeout
> > nouveau 0000:01:00.0: DRM: base-0: timeout
> >
> > I've got logs of all of this, if they help I can collect them.  The
> > timeout message are consistent the error messages a little less so.
> >
> > If there's more debugging I can do when this happens, I'd love to know
> > what it is.
> >
> > kernel config: http://audible.transient.net/~jamie/k/nouveau.config-5.10.0
> > dmesg at boot: http://audible.transient.net/~jamie/k/nouveau.dmesg
> >
> > --
> > Jamie Heilman                     http://audible.transient.net/~jamie/
> > _______________________________________________
> > Nouveau mailing list
> > Nouveau@lists.freedesktop.org
> > https://lists.freedesktop.org/mailman/listinfo/nouveau
> >
> 

-- 
Jamie Heilman                     http://audible.transient.net/~jamie/