[Bug 99275] Kernel 4.9: amdgpu regression; gui flickers; amd radeon rx 460

[bugzilla-daemon@freedesktop.org]

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https://bugs.freedesktop.org/show_bug.cgi?id=99275

--- Comment #11 from Reimar Imhof <tuxuser@quantentunnel.de> ---
tried a bisect:
git bisect start
# good: [c8d2bc9bc39ebea8437fd974fdbc21847bb897a3] Linux 4.8
git bisect good c8d2bc9bc39ebea8437fd974fdbc21847bb897a3
# bad: [69973b830859bc6529a7a0468ba0d80ee5117826] Linux 4.9
git bisect bad 69973b830859bc6529a7a0468ba0d80ee5117826
# bad: [a5af7e1fc69a46f29b977fd4b570e0ac414c2338] rxrpc: Fix loss of PING
RESPONSE ACK production due to PING ACKs
git bisect bad a5af7e1fc69a46f29b977fd4b570e0ac414c2338
# bad: [d268dbe76a53d72cc41316eb59e7968db60e77ad] Merge tag 'pinctrl-v4.9-1' of
git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl
git bisect bad d268dbe76a53d72cc41316eb59e7968db60e77ad
# bad: [02bafd96f3a5d8e610b19033ffec55b92459aaae] Merge tag 'docs-4.9' of
git://git.lwn.net/linux
git bisect bad 02bafd96f3a5d8e610b19033ffec55b92459aaae
# bad: [9929780e86854833e649b39b290b5fe921eb1701] Merge tag
'driver-core-4.9-rc1' of
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
git bisect bad 9929780e86854833e649b39b290b5fe921eb1701
# good: [12b7bcb43e6ea834ab2f5dc52d971e379a0ca109] Merge branch
'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
git bisect good 12b7bcb43e6ea834ab2f5dc52d971e379a0ca109
# bad: [5e1b834b27fb2c27cde33a0752425f11d10c0b2d] Merge branch
'timers-core-for-linus' of
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
git bisect bad 5e1b834b27fb2c27cde33a0752425f11d10c0b2d
# bad: [110a9e42b68719f584879c5c5c727bbae90d15f9] Merge branch
'x86-apic-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
git bisect bad 110a9e42b68719f584879c5c5c727bbae90d15f9
# bad: [a399d233078edbba7cf7902a6d080100cdf75636] sched/core: Fix incorrect
utilization accounting when switching to fair class
git bisect bad a399d233078edbba7cf7902a6d080100cdf75636
# good: [1a3d027c5a6847e5d349c8527f99aada47e5467a] sched/debug: Rename and move
enqueue_sleeper()
git bisect good 1a3d027c5a6847e5d349c8527f99aada47e5467a
# good: [53061afee43bc5041b67a45b6d793e7afdcf9ca7] Merge branch 'akpm' (patches
from Andrew)
git bisect good 53061afee43bc5041b67a45b6d793e7afdcf9ca7
# good: [a18a579e5f84daa74f64b1f1b652b4a6a8d6f8b4] sched/debug: Hide printk()
by default
git bisect good a18a579e5f84daa74f64b1f1b652b4a6a8d6f8b4
# good: [eaf9ef52241b545fe63621266bfc6fd8b06559ff] sched/wait: Avoid
abort_exclusive_wait() in __wait_on_bit_lock()
git bisect good eaf9ef52241b545fe63621266bfc6fd8b06559ff
# good: [24fc7edb92eea05946119cc0258c891c26b3b469] sched/core: Introduce
'struct sched_domain_shared'
git bisect good 24fc7edb92eea05946119cc0258c891c26b3b469
# good: [10e2f1acd0106c05229f94c70a344ce3a2c8008b] sched/core: Rewrite and
improve select_idle_siblings()
git bisect good 10e2f1acd0106c05229f94c70a344ce3a2c8008b
# bad: [1b568f0aabf280555125bc7cefc08321ff0ebaba] sched/core: Optimize
SCHED_SMT
git bisect bad 1b568f0aabf280555125bc7cefc08321ff0ebaba
# first bad commit: [1b568f0aabf280555125bc7cefc08321ff0ebaba] sched/core:
Optimize SCHED_SMT

> git bisect bad
1b568f0aabf280555125bc7cefc08321ff0ebaba is the first bad commit
commit 1b568f0aabf280555125bc7cefc08321ff0ebaba
Author: Peter Zijlstra <peterz@infradead.org>
Date:   Mon May 9 10:38:41 2016 +0200

    sched/core: Optimize SCHED_SMT

    Avoid pointless SCHED_SMT code when running on !SMT hardware.

    Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
    Cc: Linus Torvalds <torvalds@linux-foundation.org>
    Cc: Mike Galbraith <efault@gmx.de>
    Cc: Peter Zijlstra <peterz@infradead.org>
    Cc: Thomas Gleixner <tglx@linutronix.de>
    Cc: linux-kernel@vger.kernel.org
    Signed-off-by: Ingo Molnar <mingo@kernel.org>

:040000 040000 2ce55347eeb85f4e6044fac184e944f5235de1d3
454406febf88e80e4c5a8e37a403ad6c79e097d6 M      kernel

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