Message-ID: <Zu3-nJ7LpVzoN5Bj@gallifrey>
Date: Fri, 20 Sep 2024 23:00:44 +0000
From: "Dr. David Alan Gilbert" <linux@...blig.org>
To: Bob Gill <gillb5@...us.net>, alex.hung@....com,
	alexander.deucher@....com
Cc: linux-kernel@...r.kernel.org, regressions@...ts.linux.dev
Subject: [REGRESSION] Re: AMDGPU 6.11.0 crash, 6.10.0 git bisect log

* Bob Gill (gillb5@...us.net) wrote:
> Hello.  Kernel 6.11.0 crashes.  6.10.0 builds.  Al Viro and Dr. David Alan
> Gilbert have been helpful, and asked that I
> 
> post a git bisect log.  The last log step seems odd, but the second last
> step "Remove useless function call" might be what broke.

Thank you for doing this!

My reading is that's fine, I think the next one:

tree: git bisect bad
[a171cce57792b0a6206d532050179a381ad74f8f] drm/amd/display: Check and log for
function error codes

or the one after it is the culprit?

Adding the two Alex's from AMD back onto the thread.
(Also added the [REGRESSION] marker the notes tell us to add)

> My hardware is old corei7 quad core/8 thread Tylersberg/Nehalem with an AMD
> RX 6500XT.  That's the odd combination.
> 
> Thanks in advance,

Thanks again for the bisect.

Dave

> Bob
> 
> Config:  (.config)
> /data/kernel/bobtest6.10-64
> 
> Build line: (last command tells me the job is finished)
> make menuconfig && make -j $(nproc) && make modules && make modules_install
> && make install && /data/music/pl.sh
> 
> Rule 1: Do not modify ANYTHING in the source tree
> 
> git bisect start
> git bisect bad
> git bisect good v6.10
> 
> Bisecting: 11273 revisions left to test after this (roughly 14 steps)
> [2c9b3512402ed192d1f43f4531fb5da947e72bd0] Merge tag 'for-linus' of
> git://git.kernel.org/pub/scm/virt/kvm/kvm
> 
> latest kernel:
> ls -alt /lib/modules | head -2 | tail -1 | tr -s " " | cut -d' ' -f9
> 6.10.0+
> 
> RESULT:  boot 6.10.0+ fails
>          screen black for more than 2 minutes,
>          (caps lock key unresponsive, reset, power
>          buttons on computer case do nothing).  Reset with power bar.
> 
> tree: git bisect bad
> Bisecting: 5677 revisions left to test after this (roughly 13 steps)
> [280e36f0d5b997173d014c07484c03a7f7750668] nsfs: use cleanup guard
> 
> latest kernel:
> ls -alt /lib/modules | head -2 | tail -1 | tr -s " " | cut -d' ' -f9
> 6.10.0+
> 
> RESULT: boot 6.10.0+ successful
> tree: git bisect good
> Bisecting: 2855 revisions left to test after this (roughly 12 steps)
> [dde1a0e1625c08cf4f958348a83434b2ddecf449] Merge tag 'x86-percpu-2024-07-17'
> of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
> 
> latest kernel:
> ls -alt /lib/modules | head -2 | tail -1 | tr -s " " | cut -d' ' -f9
> 6.10.0+
> 
> RESULT: boot 6.10.0+ fails
>         screen black for more than 2 minutes,
>         (caps lock key unresponsive, reset, power
>         buttons on computer case do nothing).  Reset with power bar.
> 
> tree: git bisect bad
> Bisecting: 1478 revisions left to test after this (roughly 11 steps)
> [32a120f52a4c0121bca8f2328d4680d283693d60] drm/i915/mtl: Skip PLL state
> verification in TBT mode
> 
> latest kernel:
> ls -alt /lib/modules | head -2 | tail -1 | tr -s " " | cut -d' ' -f9
> 6.10.0-rc3+
> 
> RESULT: boot 6.10.0-rc3+ successful
> tree: git bisect good
> Bisecting: 739 revisions left to test after this (roughly 10 steps)
> [b6a343df46d69070a7073405e470e6348180ea34] drm/amdgpu: initialize GC IP
> v11.5.2
> 
> latest kernel:
> ls -alt /lib/modules | head -2 | tail -1 | tr -s " " | cut -d' ' -f9
> 6.10.0-rc3+
> 
> RESULT: boot 6.10.0-rc3+ fails
>         screen black for more than 2 minutes,
>         (caps lock key unresponsive, reset, power
>         buttons on computer case do nothing).  Reset with power bar.
> 
> tree: git bisect bad
> Bisecting: 369 revisions left to test after this (roughly 9 steps)
> [cf1d06ac53a15b83c0a63225606cfe175e33a8a0] accel/ivpu: Increase autosuspend
> delay to 100ms on 40xx
> 
> latest kernel:
> ls -alt /lib/modules | head -2 | tail -1 | tr -s " " | cut -d' ' -f9
> 6.10.0-rc1+
> 
> RESULT: boot 6.10.0-rc1+ successful
> tree: git bisect good
> Bisecting: 184 revisions left to test after this (roughly 8 steps)
> [0ca9f757a0e27a076395ec1b2002661bcf5c25e8] drm/amd/pm: powerplay: Add
> `__counted_by` attribute for flexible arrays
> 
> latest kernel:
> ls -alt /lib/modules | head -2 | tail -1 | tr -s " " | cut -d' ' -f9
> 6.9.0-rc5+
> 
> RESULT: boot 6.9.0-rc5+ successful
> tree: git bisect good
> Bisecting: 92 revisions left to test after this (roughly 7 steps)
> [9862ef7bae47b9292a38a0a1b30bff7f56d7815b] drm/amd/display: Use periodic
> detection for ipx/headless
> 
> latest kernel:
> ls -alt /lib/modules | head -2 | tail -1 | tr -s " " | cut -d' ' -f9
> 6.10.0-rc3+
> 
> RESULT: boot 6.10.0-rc3+ fails
>         screen black for more than 2 minutes,
>         (caps lock key unresponsive, reset, power
>         buttons on computer case do nothing).  Reset with power bar.
> 
> tree: git bisect bad
> Bisecting: 44 revisions left to test after this (roughly 6 steps)
> [a78313bb206e0c456a989f380c4cbd8af8af7c76] Merge tag
> 'drm-intel-gt-next-2024-06-12' of
> https://gitlab.freedesktop.org/drm/i915/kernel into drm-next
> 
> latest kernel:
> ls -alt /lib/modules | head -2 | tail -1 | tr -s " " | cut -d' ' -f9
> 6.10.0-rc3+
> 
> RESULT: boot 6.10.0-rc3+ successful
> tree: git bisect good
> Bisecting: 22 revisions left to test after this (roughly 5 steps)
> [51dbe0239b1fc7c435867ce28e5eb4394b6641e1] drm/amd/display: Fix cursor size
> issues
> 
> latest kernel:
> ls -alt /lib/modules | head -2 | tail -1 | tr -s " " | cut -d' ' -f9
> 6.10.0-rc3+
> 
> RESULT: boot 6.10.0-rc3+ successful
> tree: git bisect good
> Bisecting: 11 revisions left to test after this (roughly 4 steps)
> [871512e36f9c1c2cb4e62eb860ca0438800e4d63] drm/amd/display: Add workaround
> to restrict max frac urgent for DPM0
> 
> latest kernel:
> ls -alt /lib/modules | head -2 | tail -1 | tr -s " " | cut -d' ' -f9
> 6.10.0-rc3+
> 
> RESULT: boot 6.10.0-rc3+ fails
>         screen black for more than 2 minutes,
>         (caps lock key unresponsive, reset, power
>         buttons on computer case do nothing).  Reset with power bar.
> 
> tree: git bisect bad
> Bisecting: 5 revisions left to test after this (roughly 3 steps)
> [5d93060d430b359e16e7c555c8f151ead1ac614b] drm/amd/display: Check HDCP
> returned status
> 
> latest kernel:
> ls -alt /lib/modules | head -2 | tail -1 | tr -s " " | cut -d' ' -f9
> 6.10.0-rc3+
> 
> RESULT: boot 6.10.0-rc3+ fails
>         screen black for more than 2 minutes,
>         (caps lock key unresponsive, reset, power
>         buttons on computer case do nothing).  Reset with power bar.
> 
> tree: git bisect bad
> Bisecting: 2 revisions left to test after this (roughly 1 step)
> [e094992bd1caa1fbd42221c7c305fc3b54172b5c] drm/amd/display: Remove useless
> function call
> 
> latest kernel:
> ls -alt /lib/modules | head -2 | tail -1 | tr -s " " | cut -d' ' -f9
> 6.10.0-rc3+
> 
> RESULT: boot 6.10.0-rc3+ successful
> 
> tree: git bisect good
> [2c2ee1d1329881d8e6bb23c3b9f3b41df8a8055c] drm/amd/display: Check and log
> for function error codes
> 
> latest kernel:
> ls -alt /lib/modules | head -2 | tail -1 | tr -s " " | cut -d' ' -f9
> 6.10.0-rc3+
> 
> RESULT: boot 6.10.0-rc3+ fails
>         screen black for more than 2 minutes,
>         (caps lock key unresponsive, reset, power
>         buttons on computer case do nothing).  Reset with power bar.
> 
> tree: git bisect bad
> [a171cce57792b0a6206d532050179a381ad74f8f] drm/amd/display: Check and log
> for function error codes
> 
> 
> 
> 
> 
> 
-- 
 -----Open up your eyes, open up your mind, open up your code -------   
/ Dr. David Alan Gilbert    |       Running GNU/Linux       | Happy  \ 
\        dave @ treblig.org |                               | In Hex /
 \ _________________________|_____ http://www.treblig.org   |_______/

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