* [Bug 107229] Metro 2033 Redux hangs
2018-07-14 20:38 [Bug 107229] Metro 2033 Redux hangs bugzilla-daemon
@ 2018-07-14 20:44 ` bugzilla-daemon
2018-07-15 16:52 ` bugzilla-daemon
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https://bugs.freedesktop.org/show_bug.cgi?id=107229
--- Comment #1 from Alexander Tsoy <alexander@tsoy.me> ---
Created attachment 140639
--> https://bugs.freedesktop.org/attachment.cgi?id=140639&action=edit
linux_metro_bisect.log
> # first bad commit: [6ed4e2e673d348df6623012a628a8ab8624e3222] drm/ttm: add transparent huge page support for wc or uc allocations v2
Bisect is done with CONFIG_TRANSPARENT_HUGEPAGE=y. This is how I came to an
idea to play with transparent huge pages. Yes, I forgot about
--term-old/--term-new bisect options :)
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^ permalink raw reply [flat|nested] 9+ messages in thread* [Bug 107229] Metro 2033 Redux hangs
2018-07-14 20:38 [Bug 107229] Metro 2033 Redux hangs bugzilla-daemon
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@ 2018-07-15 16:52 ` bugzilla-daemon
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https://bugs.freedesktop.org/show_bug.cgi?id=107229
--- Comment #2 from Alexander Tsoy <alexander@tsoy.me> ---
(In reply to Alexander Tsoy from comment #0)
> With 4.14 kernels the game process is unkillable so it hangs somewhere
> in the kernel space. With 4.17 kernels it can be killed but this
> takes some time.
The process actually can be killed in a while loop.
Perf report:
$ sudo perf report | grep metro | head
33.33% metro metro [.]
cbackend_OGL::delayed_upload
31.56% metro [kernel.vmlinux] [k] rb_prev
2.07% metro [kernel.vmlinux] [k] alloc_iova
0.20% metro [kernel.vmlinux] [k] __switch_to
0.18% metro [kernel.vmlinux] [k]
native_load_gs_index
0.13% metro [kernel.vmlinux] [k]
__x86_indirect_thunk_rax
0.12% metro [kernel.vmlinux] [k]
entry_SYSCALL_64
0.08% metro [kernel.vmlinux] [k] __schedule
0.08% metro [kernel.vmlinux] [k] read_tsc
0.07% metro libc-2.26.so [.] __nanosleep
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^ permalink raw reply [flat|nested] 9+ messages in thread* [Bug 107229] Metro 2033 Redux hangs
2018-07-14 20:38 [Bug 107229] Metro 2033 Redux hangs bugzilla-daemon
2018-07-14 20:44 ` bugzilla-daemon
2018-07-15 16:52 ` bugzilla-daemon
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From: bugzilla-daemon @ 2018-07-16 9:44 UTC (permalink / raw)
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https://bugs.freedesktop.org/show_bug.cgi?id=107229
--- Comment #3 from Michel Dänzer <michel@daenzer.net> ---
(In reply to Alexander Tsoy from comment #0)
>
> linux-4.17.x with CONFIG_TRANSPARENT_HUGEPAGE=y = OK
> linux-4.17.x with CONFIG_TRANSPARENT_HUGEPAGE=n + mesa-8.0.x / mesa-8.1.x =
> hang
Did you swap CONFIG_TRANSPARENT_HUGEPAGE=y/n here? I.e.
CONFIG_TRANSPARENT_HUGEPAGE=y is bad, CONFIG_TRANSPARENT_HUGEPAGE=n is good?
If not, how exactly did you bisect with CONFIG_TRANSPARENT_HUGEPAGE=y ?
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2018-07-14 20:38 [Bug 107229] Metro 2033 Redux hangs bugzilla-daemon
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https://bugs.freedesktop.org/show_bug.cgi?id=107229
--- Comment #4 from Alexander Tsoy <alexander@tsoy.me> ---
(In reply to Michel Dänzer from comment #3)
> (In reply to Alexander Tsoy from comment #0)
> >
> > linux-4.17.x with CONFIG_TRANSPARENT_HUGEPAGE=y = OK
> > linux-4.17.x with CONFIG_TRANSPARENT_HUGEPAGE=n + mesa-8.0.x / mesa-8.1.x =
> > hang
>
> Did you swap CONFIG_TRANSPARENT_HUGEPAGE=y/n here? I.e.
> CONFIG_TRANSPARENT_HUGEPAGE=y is bad, CONFIG_TRANSPARENT_HUGEPAGE=n is good?
Yes, after getting a clue that this bug could be related to transparent huge
pages, I tried to disable CONFIG_TRANSPARENT_HUGEPAGE in 4.17.6 kernel. This
results in the same hang I had with 4.14.x kernels.
Note that transparent huge pages must be disabled at build time. cmdline option
" transparent_hugepage=never" doesn't change anything.
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https://bugs.freedesktop.org/show_bug.cgi?id=107229
--- Comment #5 from Alexander Tsoy <alexander@tsoy.me> ---
To clarify a bit: first bad commit in bisect is actually the first good commit
that fixed hangs in Metro.
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https://bugs.freedesktop.org/show_bug.cgi?id=107229
--- Comment #6 from Alexander Tsoy <alexander@tsoy.me> ---
(In reply to Alexander Tsoy from comment #5)
> To clarify a bit: first bad commit in bisect is actually the first good
> commit that fixed hangs in Metro.
But only when transparent huge pages are enabled of course.
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2018-07-14 20:38 [Bug 107229] Metro 2033 Redux hangs bugzilla-daemon
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From: bugzilla-daemon @ 2018-08-04 11:34 UTC (permalink / raw)
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https://bugs.freedesktop.org/show_bug.cgi?id=107229
--- Comment #7 from Alexander Tsoy <alexander@tsoy.me> ---
Created attachment 140964
--> https://bugs.freedesktop.org/attachment.cgi?id=140964&action=edit
dmesg
Same problem with the latest amd-staging-drm-next (commit
bf1fd52b0632cd17ac875432a36d3e92be96d8cb). Now the kernel gives me the
following errors:
[ 324.552371] [drm:amdgpu_cs_ioctl [amdgpu]] *ERROR*
amdgpu_cs_list_validate(validated) failed.
[ 324.561030] [drm:amdgpu_cs_ioctl [amdgpu]] *ERROR* Not enough memory for
command submission!
And with CONFIG_TRANSPARENT_HUGEPAGE=y the same kernel works fine.
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https://bugs.freedesktop.org/show_bug.cgi?id=107229
Martin Peres <martin.peres@free.fr> changed:
What |Removed |Added
----------------------------------------------------------------------------
Resolution|--- |MOVED
Status|NEW |RESOLVED
--- Comment #8 from Martin Peres <martin.peres@free.fr> ---
-- GitLab Migration Automatic Message --
This bug has been migrated to freedesktop.org's GitLab instance and has been
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You can subscribe and participate further through the new bug through this link
to our GitLab instance: https://gitlab.freedesktop.org/drm/amd/issues/447.
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