Hello! On Thu, 19 Oct 2023 at 11:26, Mark Brown <broonie@xxxxxxxxxx> wrote: > On Thu, Oct 19, 2023 at 09:07:02PM +0530, Naresh Kamboju wrote: > > On Tue, 17 Oct 2023 at 17:52, Mark Brown <broonie@xxxxxxxxxx> wrote: [...] > > > To confirm have you seen this on other stables as well or is this only > > > v6.5? For how long have you been seeing this? > > > This is only seen on 6.5.8-rc2 and seen only once. > > I have checked on mainline / next and other stable branches and this crash > > is not seen anywhere else. > > > However, I will keep checking them on other branches and next and mainline. > > I see. If the bug has never been reproduced I don't think we can draw > any conclusion about which branches are affected, I would be a bit > surprised by something that affects v6.5 only. We have been seeing this problem in other instances, specifically on the following kernels: * 5.15.132, 5.15.134-rc1, 5.15.135, 5.15.136-rc1, 5.15.142, 5.15.145-rc1 * 6.1.42, 6.1.43, 6.1.51-rc1, 6.1.56-rc1, 6.1.59-rc1, 6.1.63 * 6.3.10, 6.3.11 * 6.4.7 * 6.5.2, 6.5.10-rc2 Most recent case is for the current 5.15 RC. Decoded stack trace is here: -----8<----- <4>[ 29.297166] ------------[ cut here ]------------ <4>[ 29.298039] WARNING: CPU: 1 PID: 220 at arch/arm64/kernel/fpsimd.c:950 do_sve_acc (/builds/linux/arch/arm64/kernel/fpsimd.c:950 (discriminator 1)) <4>[ 29.300418] Modules linked in: fuse drm dm_mod ip_tables x_tables <4>[ 29.302720] CPU: 1 PID: 220 Comm: systemd-udevd Not tainted 5.15.145-rc1 #1 <4>[ 29.303601] Hardware name: linux,dummy-virt (DT) <4>[ 29.304804] pstate: 40400009 (nZcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) <4>[ 29.305615] pc : do_sve_acc (/builds/linux/arch/arm64/kernel/fpsimd.c:950 (discriminator 1)) <4>[ 29.306499] lr : do_sve_acc (/builds/linux/arch/arm64/include/asm/jump_label.h:38 /builds/linux/arch/arm64/include/asm/lse.h:24 /builds/linux/arch/arm64/include/asm/atomic.h:86 /builds/linux/include/linux/atomic/atomic-long.h:335 /builds/linux/include/asm-generic/bitops/atomic.h:42 /builds/linux/include/asm-generic/bitops/instrumented-atomic.h:71 /builds/linux/include/linux/thread_info.h:108 /builds/linux/arch/arm64/kernel/fpsimd.c:949) <4>[ 29.307466] sp : ffff8000083b3e60 <4>[ 29.308447] x29: ffff8000083b3e60 x28: ffff0000c2f42000 x27: 0000000000000000 <4>[ 29.310500] x26: 0000000000000000 x25: 0000000000000000 x24: 0000000000000000 <4>[ 29.312034] x23: 0000000080001000 x22: 0000ffffb3c8a454 x21: 00000000ffffffff <4>[ 29.313338] x20: 0000000064000000 x19: ffff0000c2f42000 x18: 0000000000000000 <4>[ 29.314636] x17: 0000000000000000 x16: 0000000000000000 x15: 0000000000000000 <4>[ 29.316090] x14: 0000000000000000 x13: 0000000000000000 x12: 0000000000000000 <4>[ 29.317096] x11: 0000000000000000 x10: 0000000000000000 x9 : ffffb047a36178f4 <4>[ 29.318131] x8 : ffff0000c2c4d888 x7 : 0000000000000000 x6 : 0000000000000200 <4>[ 29.319171] x5 : ffffb047a5c6f260 x4 : 0000000000000200 x3 : 0000000000000001 <4>[ 29.320180] x2 : 0000000000000000 x1 : ffff4fb95a329000 x0 : 0000000000800800 <4>[ 29.321599] Call trace: <4>[ 29.321996] do_sve_acc (/builds/linux/arch/arm64/kernel/fpsimd.c:950 (discriminator 1)) <4>[ 29.322674] el0_sve_acc (/builds/linux/arch/arm64/include/asm/daifflags.h:28 /builds/linux/arch/arm64/kernel/entry-common.c:129 /builds/linux/arch/arm64/kernel/entry-common.c:138 /builds/linux/arch/arm64/kernel/entry-common.c:529) <4>[ 29.323273] el0t_64_sync_handler (/builds/linux/arch/arm64/kernel/entry-common.c:639) <4>[ 29.323951] el0t_64_sync (/builds/linux/arch/arm64/kernel/entry.S:584) <4>[ 29.324598] ---[ end trace b31d3b95f436e1b5 ]--- ----->8----- Complete log (and reproducer) here: https://tuxapi.tuxsuite.com/v1/groups/linaro/projects/lkft/tests/2ZoYpOR79EjlFiAuFHeOWN2rwC3 Artifacts (including vmlinux and System.map) can be found here: https://storage.tuxsuite.com/public/linaro/lkft/builds/2ZoYoIewSKk26jISEo4QlNaOvVR/ Greetings! Daniel Díaz daniel.diaz@xxxxxxxxxx
