Nouveau - Apr 2018 - [Bug 105884] New: Firefox causes a crash in the nouveau driver on GTX 1060

https://bugs.freedesktop.org/show_bug.cgi?id=105884

            Bug ID: 105884
           Summary: Firefox causes a crash in the nouveau driver on GTX
                    1060
           Product: xorg
           Version: git
          Hardware: x86-64 (AMD64)
                OS: Linux (All)
            Status: NEW
          Severity: major
          Priority: medium
         Component: Driver/nouveau
          Assignee: nouveau at lists.freedesktop.org
          Reporter: t.artem at mailcity.com
        QA Contact: xorg-team at lists.x.org

Created attachment 138576
  --> https://bugs.freedesktop.org/attachment.cgi?id=138576&action=edit
dmesg

I don't remember what exactly I was doing (something in Firefox apparently)
but
my entire X session hang and I could only move the mouse pointer - everything
else was static and didn't react to key/mouse presses.

4.15.13-300.fc27.x86_64 #1 SMP Mon Mar 26 19:06:57 UTC 2018 x86_64 x86_64
x86_64 GNU/Linux

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https://bugs.freedesktop.org/show_bug.cgi?id=105884

--- Comment #1 from Artem S. Tashkinov <t.artem at mailcity.com> ---
Created attachment 138790
  --> https://bugs.freedesktop.org/attachment.cgi?id=138790&action=edit
Another crash

This is definitely a regression in kernel 4.15 because I've never had this
issue before.

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Artem S. Tashkinov <t.artem at mailcity.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|Firefox causes a crash in   |Firefox causes a crash / X
                   |the nouveau driver on GTX   |lockup in the nouveau
                   |1060                        |driver on GTX 1060

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--- Comment #2 from Artem S. Tashkinov <t.artem at mailcity.com> ---
It is possible that kernel 4.15.9 didn't have this issue, so a regression
window is quite small.

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Artem S. Tashkinov <t.artem at mailcity.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Severity|major                       |critical
           Priority|medium                      |high
           Keywords|                            |regression

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--- Comment #3 from Artem S. Tashkinov <t.artem at mailcity.com> ---
Created attachment 138797
  --> https://bugs.freedesktop.org/attachment.cgi?id=138797&action=edit
X.org.log

Seemingly there's nothing interesting in the X.org log.

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Ilia Mirkin <imirkin at alum.mit.edu> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|Firefox causes a crash / X  |[GP106] Firefox causes a
                   |lockup in the nouveau       |crash / X lockup in the
                   |driver on GTX 1060          |nouveau driver on GTX 1060

--- Comment #4 from Ilia Mirkin <imirkin at alum.mit.edu> ---
4.15 had a number of things added to it.

One thing is using hugepages in ttm, which a lot of people have reported issues
with. Try disabling CONFIG_SWIOTLB (not really needed on modern hw, afaik).

Also nouveau's vm got a rewrite. Some fixes needed to be applied, I think
they're all in 4.16, not as sure about 4.15.x.

The start of your errors is

[ 7661.417755] nouveau 0000:01:00.0: fifo: PBDMA0: 00040000 [PBENTRY] ch 7
[017f3cc000 firefox[19007]] subc 0 mthd 0000 data 00000000
[ 7661.417774] nouveau 0000:01:00.0: gr: TRAP ch 7 [017f3cc000 firefox[19007]]
[ 7661.417780] nouveau 0000:01:00.0: gr: DISPATCH 80000002
[CLASS_SUBCH_MISMATCH]
[ 7661.417793] nouveau 0000:01:00.0: fifo: PBDMA0: 00200000 [METHOD] ch 7
[017f3cc000 firefox[19007]] subc 0 mthd 000c data 88888888

which doesn't look extremely familiar. "FIFO is confused", after
which
everything goes downhill pretty fast.

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--- Comment #5 from Artem S. Tashkinov <t.artem at mailcity.com> ---
(In reply to Ilia Mirkin from comment #4)
> 4.15 had a number of things added to it.
> 
> One thing is using hugepages in ttm, which a lot of people have reported
> issues with. Try disabling CONFIG_SWIOTLB (not really needed on modern hw,
> afaik).
> 
> Also nouveau's vm got a rewrite. Some fixes needed to be applied, I
think
> they're all in 4.16, not as sure about 4.15.x.
> 
I'd be glad to disable this option but I'm on Fedora 27 and I use the
distro
kernel, so I'm not sure how I can do that. Aren't you employed by
RedHat/Fedora, Ilia? I guess it's in your power to raise this issue
internally.

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--- Comment #6 from Ilia Mirkin <imirkin at alum.mit.edu> ---
(In reply to Artem S. Tashkinov from comment #5)
> (In reply to Ilia Mirkin from comment #4)
> > 4.15 had a number of things added to it.
> > 
> > One thing is using hugepages in ttm, which a lot of people have
reported
> > issues with. Try disabling CONFIG_SWIOTLB (not really needed on modern
hw,
> > afaik).
> > 
> > Also nouveau's vm got a rewrite. Some fixes needed to be applied,
I think
> > they're all in 4.16, not as sure about 4.15.x.
> > 
> 
> I'd be glad to disable this option but I'm on Fedora 27 and I use
the distro
> kernel, so I'm not sure how I can do that. Aren't you employed by
> RedHat/Fedora, Ilia? I guess it's in your power to raise this issue
> internally.
I don't think so. Perhaps you know something I don't?

Either way, this is the upstream bug system. If you have an issue with $distro,
bring up the problem with $distro.

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--- Comment #7 from Artem S. Tashkinov <t.artem at mailcity.com> ---
(In reply to Ilia Mirkin from comment #6)
> 
> Either way, this is the upstream bug system. If you have an issue with
> $distro, bring up the problem with $distro.
Does "iommu=off" disable SWIOTLB?

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--- Comment #8 from Artem S. Tashkinov <t.artem at mailcity.com> ---
This happens under 4.16 as well but a lot less frequently (maybe because I
switched to Google Chrome to watch youtube):

May 11 14:17:06 localhost kernel: nouveau 0000:01:00.0: fifo: PBDMA0: 00040000
[PBENTRY] ch 9 [017ed17000 firefox[14167]] subc 0 mthd 0000 data 00000000
May 11 14:17:06 localhost kernel: nouveau 0000:01:00.0: fifo: PBDMA0: 00040000
[PBENTRY] ch 9 [017ed17000 firefox[14167]] subc 0 mthd 0000 data 00000000
May 11 14:17:06 localhost kernel: nouveau 0000:01:00.0: fifo: PBDMA0: 00040000
[PBENTRY] ch 9 [017ed17000 firefox[14167]] subc 0 mthd 0000 data 00000000

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--- Comment #9 from Artem S. Tashkinov <t.artem at mailcity.com> ---
Created attachment 139854
  --> https://bugs.freedesktop.org/attachment.cgi?id=139854&action=edit
dmesg again

[14443.603553] kauditd_printk_skb: 51 callbacks suppressed

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--- Comment #10 from Artem S. Tashkinov <t.artem at mailcity.com> ---
Probably related bug 99202

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Martin Peres <martin.peres at free.fr> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         Resolution|---                         |MOVED
             Status|NEW                         |RESOLVED

--- Comment #11 from Martin Peres <martin.peres at free.fr> ---
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