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Message-ID: <1ab1991a-382f-4b59-9e07-76a696159631@amd.com> Date: Fri, 20 Sep 2024 17:34:36 -0600 From: Alex Hung <alex.hung@....com> To: "Dr. David Alan Gilbert" <linux@...blig.org>, Bob Gill <gillb5@...us.net>, alexander.deucher@....com Cc: linux-kernel@...r.kernel.org, regressions@...ts.linux.dev Subject: Re: [REGRESSION] Re: AMDGPU 6.11.0 crash, 6.10.0 git bisect log On 2024-09-20 17:00, Dr. David Alan Gilbert wrote: > * 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) The commit triggers debugger in case of in case of errors. Is the config CONFIG_DEBUG_KERNEL_DC (Enable kgdb break in DC) enabled in .config, i.e. can you check "grep CONFIG_DEBUG_KERNEL_DC .config"? If so, can you also try to disable it and check whether you can see error messages "Failed to execute VBIOS command table" in kernel log? > >> 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 >> >> >> >> >> >>
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