| Message ID | bug-79051-2300@https.bugzilla.kernel.org/ (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
https://bugzilla.kernel.org/show_bug.cgi?id=79051
Alex Deucher <alexdeucher@gmail.com> changed:
What |Removed |Added
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CC| |alexdeucher@gmail.com
--- Comment #1 from Alex Deucher <alexdeucher@gmail.com> ---
See this patch set and discussion:
http://lists.freedesktop.org/archives/dri-devel/2014-June/062411.html
https://bugzilla.kernel.org/show_bug.cgi?id=79051 --- Comment #2 from Ed Tomlinson <edt@aei.ca> --- I am seeing a similar panic on a R7 260X. See: https://plus.google.com/u/0/photos/108244876431105742323/albums/6029631260384977873/6029631269719723986?pid=6029631269719723986&oid=108244876431105742323 I cannot reproduce this on demand. I am currently trying patch #2 and will report if I see impossible msc times.
https://bugzilla.kernel.org/show_bug.cgi?id=79051
Jonathan Howard <jonathan@unbiased.name> changed:
What |Removed |Added
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Status|NEW |RESOLVED
Resolution|--- |PATCH_ALREADY_AVAILABLE
--- Comment #3 from Jonathan Howard <jonathan@unbiased.name> ---
3.16-rc4 3.15.5 both working. Expect (unchecked) discussion (above) patch is
applied.
diff --git a/drivers/gpu/drm/radeon/evergreen.c b/drivers/gpu/drm/radeon/evergre index 971d933..e31d936 100644 --- a/drivers/gpu/drm/radeon/evergreen.c +++ b/drivers/gpu/drm/radeon/evergreen.c @@ -4967,7 +4967,8 @@ restart_ih: case 16: /* D5 page flip */ case 18: /* D6 page flip */ DRM_DEBUG("IH: D%d flip\n", ((src_id - 8) >> 1) + 1); - radeon_crtc_handle_flip(rdev, (src_id - 8) >> 1); + if (atomic_read(&rdev->irq.pflip[(src_id - 8) >> 1])) + radeon_crtc_handle_flip(rdev, (src_id - 8) >> 1) break; case 42: /* HPD hotplug */
https://bugzilla.kernel.org/show_bug.cgi?id=79051 Bug ID: 79051 Summary: Panic with radeon hd 5750, bisected Product: Drivers Version: 2.5 Kernel Version: 3.14.6 - 3.16-rc2 Hardware: x86-64 OS: Linux Tree: Mainline Status: NEW Severity: normal Priority: P1 Component: Video(DRI - non Intel) Assignee: drivers_video-dri@kernel-bugs.osdl.org Reporter: jonathan@unbiased.name Regression: No Happens usually within first minute of starting weston (drm on archlinux.) just opening windows and moving mouse. (no panic within X.) Bisected to https://git.kernel.org/cgit/linux/kernel/git/stable/linux-stable.git/commit/?h=linux-3.14.y&id=19aef29eea6e5b42e4097c2ccdd80e944e9f9f6f Still same with 3.16-rc2. Panic only dumped to screen so don't have exact copy. RIP in drm_vblank_put radeon_crt_handle_flip evergreen_irq_process notice_schd_clock radeon_irq_handler_kms handle_irq_events_percpu ... Removing the one line stops the panic so does this; switch (src_data) { Only guess work on my part. Needs someone with knowledge of code determine real fix.