Panic at pc : _base_readl+0x4/0x20 [mpt3sas] - kernel 5.17.0

[Bruno Goncalves]

Hello,

We've observed the panic below when testing a mainline kernel, it is
not 100% reproducible in our machine though.

[  225.507306] mpt3sas_cm0 fault info from func: mpt3sas_base_make_ioc_ready
[  225.514159] mpt3sas_cm0: fault_state(0x5854)!
[  225.518509] mpt3sas_cm0: sending diag reset !!
[  225.916444] Internal error: synchronous external abort: 96000610 [#1] SMP
[  225.923230] Modules linked in: tls rfkill sunrpc joydev i2c_smbus
qede qed vfat fat ipmi_ssif ipmi_devintf ipmi_msghandler thunderx2_pmu
cppc_cpufreq fuse zram xfs ast i2c_algo_bit drm_vram_helper
drm_kms_helper crct10dif_ce ghash_ce syscopyarea sysfillrect sysimgblt
fb_sys_fops cec drm_ttm_helper ttm mpt3sas drm raid_class
scsi_transport_sas gpio_xlp i2c_xlp9xx
[  225.955353] CPU: 0 PID: 7 Comm: kworker/u448:0 Not tainted 5.17.0 #1
[  225.961699] Hardware name: Default string MT91-FS1/MT91-FS1, BIOS
F28 12/27/2019
[  225.969084] Workqueue: poll_mpt3sas0_statu _base_fault_reset_work [mpt3sas]
[  225.976070] pstate: 80400009 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
[  225.983025] pc : _base_readl+0x4/0x20 [mpt3sas]
[  225.987566] lr : _base_wait_on_iocstate+0x88/0x120 [mpt3sas]
[  225.993233] sp : ffff80000b5ebc20
[  225.996537] x29: ffff80000b5ebc20 x28: 0000000000000000 x27: 0000000000000000
[  226.003668] x26: ffff000814d5a830 x25: 0000000050000000 x24: 0000000040000000
[  226.010798] x23: 0000000010000000 x22: 0000000000004e1f x21: ffff000814d5a810
[  226.017927] x20: 0000000000000004 x19: 0000000000000000 x18: ffffffffffffffff
[  226.025056] x17: 0000000000000000 x16: ffff00080a67bd78 x15: ffff80008b5eb9ef
[  226.032185] x14: ffffffffffffffff x13: 0000000000000000 x12: ffff8000095df498
[  226.039313] x11: ffff800009f8f698 x10: 0000000000001d40 x9 : ffff8000090efb98
[  226.046442] x8 : ffff00080323bf20 x7 : ffff800b62663000 x6 : 0000000e22b02726
[  226.053570] x5 : 00000000430f0af0 x4 : 0000000000f0000f x3 : 00000000000d42a8
[  226.060699] x2 : ffff800001203050 x1 : 0000000000000000 x0 : ffff8000151b0000
[  226.067828] Call trace:
[  226.070263]  _base_readl+0x4/0x20 [mpt3sas]
[  226.074456]  _base_diag_reset+0x2f0/0x378 [mpt3sas]
[  226.079341]  mpt3sas_base_make_ioc_ready.part.0+0xdc/0x1b4 [mpt3sas]
[  226.085703]  mpt3sas_base_hard_reset_handler+0x140/0x424 [mpt3sas]
[  226.091891]  _base_fault_reset_work+0x1cc/0x4a0 [mpt3sas]
[  226.097297]  process_one_work+0x1f0/0x480
[  226.101303]  worker_thread+0x180/0x500
[  226.105045]  kthread+0xd4/0xe0
[  226.108093]  ret_from_fork+0x10/0x20
[  226.111667] Code: d50323bf d65f03c0 d503201f d503233f (b9400000)
[  226.117751] ---[ end trace 0000000000000000 ]---
[  226.122359] Kernel panic - not syncing: synchronous external abort:
Fatal exception
[  226.130004] SMP: stopping secondary CPUs
[  226.133972] Kernel Offset: 0x100000 from 0xffff800008000000
[  226.139534] PHYS_OFFSET: 0x80000000
[  226.143011] CPU features: 0x006,0000450d,19001080
[  226.147705] Memory Limit: none
[  226.150750] ---[ end Kernel panic - not syncing: synchronous
external abort: Fatal exception ]---


Full console.log:
https://s3.us-east-1.amazonaws.com/arr-cki-prod-datawarehouse-public/datawarehouse-public/2022/03/22/497731769/build_aarch64_redhat:2232309798/tests/11656424_aarch64_5_console.log


Thanks,
Bruno Goncalves