[Bug 104975] Delay in skl_disable_plane() causes a system freeze
bugzilla-daemon at freedesktop.org
bugzilla-daemon at freedesktop.org
Fri May 11 22:52:48 UTC 2018
https://bugs.freedesktop.org/show_bug.cgi?id=104975
--- Comment #74 from Azhar <azhar.shaikh at intel.com> ---
(In reply to Ville Syrjala from comment #73)
> Pushed a few more things to
> git://github.com/vsyrjala/linux.git double_buffer_ctl_simple_2
>
> cd7a3f1a64c7 ("write wm/buf_cfg regs when writing other plane regs")
> 0374055ebfdd ("clear upper half of ggtt and point all disabled planes there")
> 64bb19816a10 ("fix schedule_timeout vs. spinlock")
> dd26b543fec6 ("disable LP1+ watermarks")
>
> Please test again. If supposedly disabled planes remain on this time we
> should get getting fault errors in dmesg from the irq handler.
After applying above patches I was able to reproduce the issue once, but was
not able to collect the logs.
I have re-started the test again to get the dmesg logs with default log level.
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