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Message-ID: <CA+G9fYtPV3kskAyc4NQws68-CpBrV+ohxkt1EEaAN54Dh6J6Uw@mail.gmail.com> Date: Thu, 20 Jun 2024 17:21:09 +0530 From: Naresh Kamboju <naresh.kamboju@...aro.org> To: Greg Kroah-Hartman <gregkh@...uxfoundation.org> Cc: stable@...r.kernel.org, patches@...ts.linux.dev, linux-kernel@...r.kernel.org, torvalds@...ux-foundation.org, akpm@...ux-foundation.org, linux@...ck-us.net, shuah@...nel.org, patches@...nelci.org, lkft-triage@...ts.linaro.org, pavel@...x.de, jonathanh@...dia.com, f.fainelli@...il.com, sudipm.mukherjee@...il.com, srw@...dewatkins.net, rwarsow@....de, conor@...nel.org, allen.lkml@...il.com, broonie@...nel.org, Miaohe Lin <linmiaohe@...wei.com>, Arnd Bergmann <arnd@...db.de>, Dan Carpenter <dan.carpenter@...aro.org>, David Hildenbrand <david@...hat.com>, Cgroups <cgroups@...r.kernel.org>, linux-mm <linux-mm@...ck.org>, Baolin Wang <baolin.wang@...ux.alibaba.com>, jbeulich@...e.com, LTP List <ltp@...ts.linux.it> Subject: Re: [PATCH 6.9 000/281] 6.9.6-rc1 review On Wed, 19 Jun 2024 at 18:41, Greg Kroah-Hartman <gregkh@...uxfoundation.org> wrote: > > This is the start of the stable review cycle for the 6.9.6 release. > There are 281 patches in this series, all will be posted as a response > to this one. If anyone has any issues with these being applied, please > let me know. > > Responses should be made by Fri, 21 Jun 2024 12:55:11 +0000. > Anything received after that time might be too late. > > The whole patch series can be found in one patch at: > https://www.kernel.org/pub/linux/kernel/v6.x/stable-review/patch-6.9.6-rc1.gz > or in the git tree and branch at: > git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-6.9.y > and the diffstat can be found below. > > thanks, > > greg k-h There are two major issues on arm64 Juno-r2 on Linux stable-rc 6.9.6-rc1 Reported-by: Linux Kernel Functional Testing <lkft@...aro.org> 1) The LTP controllers cgroup_fj_stress test cases causing kernel crash on arm64 Juno-r2 with compat mode testing with stable-rc 6.9 kernel. In the recent past I have reported this issues on Linux mainline. LTP: fork13: kernel panic on rk3399-rock-pi-4 running mainline 6.10.rc3 - https://lore.kernel.org/all/CA+G9fYvKmr84WzTArmfaypKM9+=Aw0uXCtuUKHQKFCNMGJyOgQ@mail.gmail.com/ it goes like this, Unable to handle kernel NULL pointer dereference at virtual address ... Insufficient stack space to handle exception! end Kernel panic - not syncing: kernel stack overflow 2) The LTP controllers cgroup_fj_stress test suite causing kernel oops on arm64 Juno-r2 (with the clang-night build toolchain). Unable to handle kernel NULL pointer dereference at virtual address 0000000000000009 Internal error: Oops: 0000000096000044 [#1] PREEMPT SMP pc : xprt_alloc_slot+0x54/0x1c8 lr : xprt_alloc_slot+0x30/0x1c8 Details of crash log: 1) Crash log: ----------- cgroup_fj_stress 1 TINFO: Running: cgroup_fj_stress.sh cpuacct 200 1 none cgroup_fj_stress 1 TINFO: timeout per run is 0h 50m 0s tst_cgroup.c:764: TINFO: Mounted V1 cpuacct CGroup on /scratch/ltp-iiltEE0UOm/cgroup_cpuacct cgroup_fj_stress 1 TINFO: test starts with cgroup version 1 cgroup_fj_stress 1 TINFO: Creating subgroups ... [ 1785.477847] Unable to handle kernel NULL pointer dereference at virtual address 0000000000000070 [ 1785.486682] Mem abort info: [ 1785.489477] ESR = 0x0000000096000004 [ 1785.493232] EC = 0x25: DABT (current EL), IL = 32 bits [ 1785.498555] SET = 0, FnV = 0 [ 1785.501613] EA = 0, S1PTW = 0 [ 1785.504757] FSC = 0x04: level 0 translation fault [ 1785.509643] Data abort info: [ 1785.512526] ISV = 0, ISS = 0x00000004, ISS2 = 0x00000000 [ 1785.518021] CM = 0, WnR = 0, TnD = 0, TagAccess = 0 [ 1785.523082] GCS = 0, Overlay = 0, DirtyBit = 0, Xs = 0 .. [ 1786.235715] Unable to handle kernel NULL pointer dereference at virtual address 0000000000000070 .. [ 1786.286238] Unable to handle kernel NULL pointer dereference at virtual address 0000000000000070 .. [ 1786.336761] Unable to handle kernel NULL pointer dereference at virtual address 0000000000000070 [ 1786.345564] Mem abort info: [ 1786.348359] ESR = 0x0000000096000004 [ 1786.352112] EC = 0x25: DABT (current EL), IL = 32 bits [ 1786.357434] SET = 0, FnV = 0 [ 1786.360492] EA = 0, S1PTW = 0 [ 1786.363637] FSC = 0x04: level 0 translation fault [ 1786.368523] Data abort info: [ 1786.371405] ISV = 0, ISS = 0x00000004, ISS2 = 0x00000000 [ 1786.376900] CM = 0, WnR = 0, TnD = 0, TagAccess = 0 [ 1786.381960] GCS = 0, Overlay = 0, DirtyBit = 0, Xs = 0 [ 1786.387284] Unable to handle kernel NULL pointer dereference at virtual address 0000000000000070 [ 1786.387293] Insufficient stack space to handle exception! [ 1786.387296] ESR: 0x0000000096000047 -- DABT (current EL) [ 1786.387302] FAR: 0xffff80008399ffe0 [ 1786.387306] Task stack: [0xffff8000839a0000..0xffff8000839a4000] [ 1786.387312] IRQ stack: [0xffff8000837f8000..0xffff8000837fc000] [ 1786.387319] Overflow stack: [0xffff00097ec95320..0xffff00097ec96320] [ 1786.387327] CPU: 4 PID: 0 Comm: swapper/4 Not tainted 6.9.6-rc1 #1 [ 1786.387338] Hardware name: ARM Juno development board (r2) (DT) [ 1786.387344] pstate: a00003c5 (NzCv DAIF -PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ 1786.387355] pc : _prb_read_valid (kernel/printk/printk_ringbuffer.c:2109) [ 1786.387374] lr : prb_read_valid (kernel/printk/printk_ringbuffer.c:2183) [ 1786.387385] sp : ffff80008399ffe0 [ 1786.387390] x29: ffff8000839a0030 x28: ffff000800365f00 x27: ffff800082530008 [ 1786.387407] x26: ffff8000834e33b8 x25: ffff8000839a00b0 x24: 0000000000000001 [ 1786.387423] x23: ffff8000839a00a8 x22: ffff8000830e3e40 x21: 0000000000001e9e [ 1786.387438] x20: 0000000000000000 x19: ffff8000839a01c8 x18: 0000000000000010 [ 1786.387453] x17: 72646461206c6175 x16: 7472697620746120 x15: 65636e6572656665 [ 1786.387468] x14: 726564207265746e x13: 3037303030303030 x12: 3030303030303030 [ 1786.387483] x11: 2073736572646461 x10: ffff800083151ea0 x9 : ffff80008014273c [ 1786.387498] x8 : ffff8000839a0120 x7 : 0000000000000000 x6 : 0000000000000e9f [ 1786.387512] x5 : ffff8000839a00c8 x4 : ffff8000837157c0 x3 : 0000000000000000 [ 1786.387526] x2 : ffff8000839a00b0 x1 : 0000000000000000 x0 : ffff8000830e3f58 [ 1786.387542] Kernel panic - not syncing: kernel stack overflow [ 1786.387549] SMP: stopping secondary CPUs [ 1787.510055] SMP: failed to stop secondary CPUs 0,4 [ 1787.510065] Kernel Offset: disabled [ 1787.510068] CPU features: 0x4,00001061,e0100000,0200421b [ 1787.510076] Memory Limit: none [ 1787.680436] ---[ end Kernel panic - not syncing: kernel stack overflow ]--- 2) Kernel oops log: ----------- [ 1094.253182] __secondary_switched+0xb8/0xc0 [ 1094.258306] Unable to handle kernel NULL pointer dereference at virtual address 0000000000000009 [ 1094.267132] Mem abort info: [ 1094.269938] ESR = 0x0000000096000044 [ 1094.273701] EC = 0x25: DABT (current EL), IL = 32 bits [ 1094.279031] SET = 0, FnV = 0 [ 1094.282097] EA = 0, S1PTW = 0 [ 1094.285242] FSC = ranslation fault [ 1094.290136] Data abort info: [ 1094.293019] ISV = 0, ISS = 0x00000044, ISS2 = 0x00000000 [ 1094.298523] CM = 0, WnR = 1, TnD = 0, TagAccess = 0 [ 1094.303592] GCS = 0, Overlay = 0, DirtyBit = 0, Xs = 0 [ 1094.308921] user pgtable: 4k bit VAs, pgdp=00000008a2a34000 [ 1094.315383] [0000000000000009] pgd=0000000000000000, p4d=0000000000000000 [ 1094.322211] Internal error: Oops: 0000000096000044 [#1] PREEMPT SMP [ 1094.328489] Modules linked in: btrfs xor xor_neon raid6_pq zstd_compress libcrc38x hdlcd cec drm_dma_helper onboard_usb_hub crct10dif_ce drm_kms_helper fuse drm backlight dm_mod ip_tables x_tables [ 1094.346744] CPU: 1 PID: 161 Comm: systemd-journal Tainted: G W 6.9.6-rc1 #1 [ 1094.355112] Hardware name: ARM Juno development board (r2) (DT) [ 1094.361038] pstate: 20000005 (nzCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ 1094.368013] pc : xprt_alloc_slot+0x54/0x1c8 [ 1094.372208] lr : xprt_alloc_slot+0x30/0x1c8 [ 1094.376398] sp : ffff800082dc37e0 [ 1094.379713] x29: ffff800082dc37e0 x28: ffff8000814d31c8 x27: 0000000000008080 [ 1094.386868] x26: ffff8000825da000 x25: 0000000000000001 x24: 0000000000440100 [ 1094.394022] x23: ffff000821759300 x22: 0000000000002102 x21: ffff00082d39d000 [ 1094.401176] x20: ffff00082201f800 x19: ffff0008225bf400 x18: 0000000000000000 [ 1094.408329] x17: 0000000000000000 x16: 0000000000000800 x15: 8080008000000000 [ 1094.415483] x14: 0000ff0064656873 x13: ffff800082dc0000 x12: 0000000000000022 [ 1094.422636] x11: dead000000000100 x10: 0000000000000001 x9 : 0000000000000000 [ 1094.429790] x8 : ffff00082d39d0c8 x7 : 0000000000000000 x6 : 0000000000000000 [ 1094.436942] x5 : 0000000000000000 x4 : ffff00097ec4c530 x3 : ffff800082dc3790 [ 1094.444096] x2 : ffff000821759300 x1 : 0000000000000000 x0 : ffff800081583770 [ 1094.451249] Call trace: [ 1094.453694] xprt_alloc_slot+0x54/0x1c8 [ 1094.457536] xprt_reserve+0x6c/0xe8 [ 1094.461029] call_reserve+0x2c/0x40 [ 1094.464522] __rpc_execute+0x124/0x640 [ 1094.468280] rpc_execute+0x100/0x280 [ 1094.471862] rpc_run_task+0x124/0x1e8 [ 1094.475528] rpc_call_sync+0x58/0xc0 [ 1094.479106] nfs3_proc_getattr+0x94/0xf8 [ 1094.483037] __nfs_revalidate_inode+0x13c/0x310 [ 1094.487575] nfs_access_get_cached+0x23c/0x3b8 [ 1094.492024] nfs_do_access+0x74/0x2b8 [ 1094.495689] nfs_permission+0xb8/0x1e0 [ 1094.499441] inode_permission+0xc4/0x170 [ 1094.503371] link_path_walk+0x100/0x3e0 [ 1094.507215] path_lookupat+0x74/0x130 [ 1094.510882] filename_lookup+0xdc/0x1d8 [ 1094.514724] user_path_at_empty+0x58/0x108 [ 1094.518828] do_faccessat+0x178/0x330 [ 1094.522495] __arm64_sys_faccessat+0x30/0x48 [ 1094.526771] invoke_syscall+0x4c/0x118 [ 1094.530528] el0_svc_common+0x8c/0xf0 [ 1094.534197] do_el0_svc+0x28/0x40 [ 1094.537518] el0_svc+0x40/0x88 [ 1094.540576] el0t_64_sync_handler+0x90/0x100 [ 1094.544853] el0t_64_sync+0x190/0x198 [ 1094.548522] Code: d280200b f2fbd5ab 5280044c d1032115 (f9000549) [ 1094.554623] ---[ end trace 0000000000000000 ]--- [ 1094.559268] note: systemd-journal[161] exited with preempt_count 1 [ 1115.569495] rcu: INFO: rcu_preempt self-detected stall on CPU Links: ------ 1) - https://qa-reports.linaro.org/lkft/linux-stable-rc-linux-6.9.y/build/v6.9.5-282-g93f303762da5/testrun/24410131/suite/log-parser-test/test/check-kernel-panic/log - https://qa-reports.linaro.org/lkft/linux-stable-rc-linux-6.9.y/build/v6.9.5-282-g93f303762da5/testrun/24410131/suite/log-parser-test/test/check-kernel-panic-a44367e5836148d6e94412d6de8ab7a0ca37c18d2bfb6a639947ecd2704ad6b1/details/ - https://tuxapi.tuxsuite.com/v1/groups/linaro/projects/lkft/tests/2i6h1Ah6I8CP7ABUzTl9shfaW60 - https://lkft.validation.linaro.org/scheduler/job/7687060#L23314 2) - https://qa-reports.linaro.org/lkft/linux-stable-rc-linux-6.9.y/build/v6.9.5-282-g93f303762da5/testrun/24410890/suite/log-parser-test/test/check-kernel-oops/log - https://qa-reports.linaro.org/lkft/linux-stable-rc-linux-6.9.y/build/v6.9.5-282-g93f303762da5/testrun/24410890/suite/log-parser-test/test/check-kernel-exception-55b962f42ea3dfdcb5c7b6c7ceee184b48ae8d479f430f7b31241f220adcb542/details/ - https://qa-reports.linaro.org/lkft/linux-stable-rc-linux-6.9.y/build/v6.9.5-282-g93f303762da5/testrun/24410890/suite/log-parser-test/tests/ - https://lkft.validation.linaro.org/scheduler/job/7688690#L16336 Build details: ------- * kernel: 6.9.6-rc1 * git: https://gitlab.com/Linaro/lkft/mirrors/stable/linux-stable-rc * git branch: linux-6.9.y * git commit: 93f303762da5a9d9c2c72cac615d4d092ce42b1f * git describe: v6.9.5-282-g93f303762da5 -- Linaro LKFT https://lkft.linaro.org
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