Internal error: Oops - SP/PC alignment exception

[xiaojuan_qi]

Hello,

Panic happened during our test.

Please help to check.

Linux kernel：Linux version 4.14.98

HW platform: NXP IMX8DX

Abort detail is as below. Thank you.

<   38.252653> 2019-03-31 16:00:27 [   31.569574] [c0:     kworker/0:2:   61]Internal error: Oops - SP/PC alignment exception: 8a000000 [#1] PREEMPT SMP
<   38.260695> 2019-03-31 16:00:27 [   31.577616] [c0:     kworker/0:2:   61]Modules linked in:
<   38.263763> 2019-03-31 16:00:27 [   31.580684] [c0:     kworker/0:2:   61] crc32_ce
<   38.266047> 2019-03-31 16:00:27 [   31.582968] [c0:     kworker/0:2:   61] crct10dif_ce
<   38.268686> 2019-03-31 16:00:27 [   31.585607] [c0:     kworker/0:2:   61]CPU: 0 PID: 61 Comm: kworker/0:2 Tainted: G        W       4.14.98-akso-v1.0+g9cb413aec97a #1
<   38.278268> 2019-03-31 16:00:27 [   31.595189] [c0:     kworker/0:2:   61]Hardware name: Hirain i.MX8DX AKSO (DT)
<   38.283166> 2019-03-31 16:00:27 [   31.600087] [c0:     kworker/0:2:   61]Workqueue: pm pm_runtime_work
<   38.287184> 2019-03-31 16:00:27 [   31.604105] [c0:     kworker/0:2:   61]task: ffff800018022880 task.stack: ffff000009938000
<   38.293117> 2019-03-31 16:00:27 [   31.610038] [c0:     kworker/0:2:   61]PC is at 0xffff000000010101
<   38.296971> 2019-03-31 16:00:27 [   31.613892] [c0:     kworker/0:2:   61]LR is at clk_unprepare+0x2c/0x40
<   38.301248> 2019-03-31 16:00:27 [   31.618169] [c0:     kworker/0:2:   61]pc : [<ffff000000010101>] lr : [<ffff00000858aa0c>] pstate: 60000145
<   38.308656> 2019-03-31 16:00:27 [   31.625577] [c0:     kworker/0:2:   61]sp : ffff00000993bbf0
<   38.311977> 2019-03-31 16:00:27 [   31.628898] [c0:     kworker/0:2:   61]x29: ffff00000993bbf0 
<   38.315389> 2019-03-31 16:00:27 [   31.632310] [c0:     kworker/0:2:   61]x28: 0000000000000000 
<   38.318798> 2019-03-31 16:00:27 [   31.635719] [c0:     kworker/0:2:   61]x27: ffff000009456000 
<   38.322209> 2019-03-31 16:00:27 [   31.639130] [c0:     kworker/0:2:   61]x26: ffff0000080f08b8 
<   38.325616> 2019-03-31 16:00:27 [   31.642537] [c0:     kworker/0:2:   61]x25: ffff00000993bda0 
<   38.329029> 2019-03-31 16:00:27 [   31.645950] [c0:     kworker/0:2:   61]x24: 000000075235ff1c 
<   38.332435> 2019-03-31 16:00:27 [   31.649356] [c0:     kworker/0:2:   61]x23: ffff800018503500 
<   38.335841> 2019-03-31 16:00:27 [   31.652762] [c0:     kworker/0:2:   61]x22: ffff800018503100 
<   38.339257> 2019-03-31 16:00:27 [   31.656178] [c0:     kworker/0:2:   61]x21: 0000000000000000 
<   38.342670> 2019-03-31 16:00:27 [   31.659591] [c0:     kworker/0:2:   61]x20: ffff800018fd3b00 
<   38.346086> 2019-03-31 16:00:27 [   31.663006] [c0:     kworker/0:2:   61]x19: ffff800018323400 
<   38.349496> 2019-03-31 16:00:27 [   31.666417] [c0:     kworker/0:2:   61]x18: 00000000000007e2 
<   38.352903> 2019-03-31 16:00:27 [   31.669824] [c0:     kworker/0:2:   61]x17: 0000ffff8fbe9060 
<   38.356316> 2019-03-31 16:00:27 [   31.673237] [c0:     kworker/0:2:   61]x16: ffff0000082519f8 
<   38.359724> 2019-03-31 16:00:27 [   31.676645] [c0:     kworker/0:2:   61]x15: 0000000000000013 
<   38.363137> 2019-03-31 16:00:27 [   31.680058] [c0:     kworker/0:2:   61]x14: 0000000000000000 
<   38.366551> 2019-03-31 16:00:27 [   31.683472] [c0:     kworker/0:2:   61]x13: 0000000000000000 
<   38.369956> 2019-03-31 16:00:27 [   31.686877] [c0:     kworker/0:2:   61]x12: 000000072e88610e 
<   38.373362> 2019-03-31 16:00:27 [   31.690283] [c0:     kworker/0:2:   61]x11: 0000000000000000 
<   38.376775> 2019-03-31 16:00:27 [   31.693696] [c0:     kworker/0:2:   61]x10: 0000000000000040 
<   38.380182> 2019-03-31 16:00:27 [   31.697103] [c0:     kworker/0:2:   61]x9 : ffff000009479910 
<   38.383597> 2019-03-31 16:00:27 [   31.700518] [c0:     kworker/0:2:   61]x8 : ffff80001a066db0 
<   38.387012> 2019-03-31 16:00:27 [   31.703933] [c0:     kworker/0:2:   61]x7 : ffff800018022900 
<   38.390423> 2019-03-31 16:00:27 [   31.707344] [c0:     kworker/0:2:   61]x6 : 0000000003311d9f 
<   38.393832> 2019-03-31 16:00:27 [   31.710752] [c0:     kworker/0:2:   61]x5 : 00000000000000b8 
<   38.397243> 2019-03-31 16:00:27 [   31.714164] [c0:     kworker/0:2:   61]x4 : 0000000000000000 
<   38.400650> 2019-03-31 16:00:27 [   31.717571] [c0:     kworker/0:2:   61]x3 : ffff800018022880 
<   38.404063> 2019-03-31 16:00:27 [   31.720984] [c0:     kworker/0:2:   61]x2 : ffff000009669608 
<   38.407472> 2019-03-31 16:00:27 [   31.724393] [c0:     kworker/0:2:   61]x1 : 0000000000000001 
<   38.410884> 2019-03-31 16:00:27 [   31.727805] [c0:     kworker/0:2:   61]x0 : ffff000009669608 
<   38.414301> 2019-03-31 16:00:27 [   31.731222] [c0:     kworker/0:2:   61]Process kworker/0:2 (pid: 61, stack limit = 0xffff000009938000)
<   38.421273> 2019-03-31 16:00:27 [   31.738194] [c0:     kworker/0:2:   61]Call trace:
<   38.423726> 2019-03-31 16:00:27 [   31.740647] [c0:     kworker/0:2:   61]Exception stack(0xffff00000993bab0 to 0xffff00000993bbf0)
<   38.430180> 2019-03-31 16:00:27 [   31.747101] [c0:     kworker/0:2:   61]baa0:                                   ffff000009669608 0000000000000001
<   38.438026> 2019-03-31 16:00:27 [   31.754947] [c0:     kworker/0:2:   61]bac0: ffff000009669608 ffff800018022880 0000000000000000 00000000000000b8
<   38.445871> 2019-03-31 16:00:27 [   31.762792] [c0:     kworker/0:2:   61]bae0: 0000000003311d9f ffff800018022900 ffff80001a066db0 ffff000009479910
<   38.453719> 2019-03-31 16:00:27 [   31.770639] [c0:     kworker/0:2:   61]bb00: 0000000000000040 0000000000000000 000000072e88610e 0000000000000000
<   38.461562> 2019-03-31 16:00:27 [   31.778483] [c0:     kworker/0:2:   61]bb20: 0000000000000000 0000000000000013 ffff0000082519f8 0000ffff8fbe9060
<   38.469407> 2019-03-31 16:00:27 [   31.786328] [c0:     kworker/0:2:   61]bb40: 00000000000007e2 ffff800018323400 ffff800018fd3b00 0000000000000000
<   38.477252> 2019-03-31 16:00:27 [   31.794173] [c0:     kworker/0:2:   61]bb60: ffff800018503100 ffff800018503500 000000075235ff1c ffff00000993bda0
<   38.485097> 2019-03-31 16:00:27 [   31.802018] [c0:     kworker/0:2:   61]bb80: ffff0000080f08b8 ffff000009456000 0000000000000000 ffff00000993bbf0
<   38.492941> 2019-03-31 16:00:27 [   31.809862] [c0:     kworker/0:2:   61]bba0: ffff00000858aa0c ffff00000993bbf0 ffff000000010101 0000000060000145
<   38.500786> 2019-03-31 16:00:27 [   31.817707] [c0:     kworker/0:2:   61]bbc0: ffff00000993bbe0 ffff0000085898f8 ffffffffffffffff ffff0000085898ec
<   38.508629> 2019-03-31 16:00:27 [   31.825550] [c0:     kworker/0:2:   61]bbe0: ffff00000993bbf0 ffff000000010101
<   38.513519> 2019-03-31 16:00:27 [   31.830439] [c0:     kworker/0:2:   61][<ffff000000010101>] 0xffff000000010101
<   38.518411> 2019-03-31 16:00:27 [   31.835332] [c0:     kworker/0:2:   61][<ffff00000858aa0c>] clk_unprepare+0x2c/0x40
<   38.523741> 2019-03-31 16:00:27 [   31.840662] [c0:     kworker/0:2:   61][<ffff0000089c2df0>] sdhci_esdhc_runtime_suspend+0x110/0x128
<   38.530453> 2019-03-31 16:00:27 [   31.847374] [c0:     kworker/0:2:   61][<ffff0000086cdf20>] pm_generic_runtime_suspend+0x28/0x40
<   38.536909> 2019-03-31 16:00:27 [   31.853830] [c0:     kworker/0:2:   61][<ffff0000086de960>] genpd_runtime_suspend+0x88/0x240
<   38.543015> 2019-03-31 16:00:27 [   31.859936] [c0:     kworker/0:2:   61][<ffff0000086d0a90>] __rpm_callback+0xe0/0x268
<   38.548514> 2019-03-31 16:00:27 [   31.865435] [c0:     kworker/0:2:   61][<ffff0000086d0c6c>] rpm_callback+0x54/0x80
<   38.553753> 2019-03-31 16:00:27 [   31.870674] [c0:     kworker/0:2:   61][<ffff0000086d1130>] rpm_suspend+0xf8/0x658
<   38.558991> 2019-03-31 16:00:27 [   31.875912] [c0:     kworker/0:2:   61][<ffff0000086d1bb8>] pm_runtime_work+0x78/0xb8
<   38.564493> 2019-03-31 16:00:27 [   31.881414] [c0:     kworker/0:2:   61][<ffff0000080c7ae8>] process_one_work+0x1d8/0x4a0
<   38.570250> 2019-03-31 16:00:27 [   31.887171] [c0:     kworker/0:2:   61][<ffff0000080c7df8>] worker_thread+0x48/0x470
<   38.575664> 2019-03-31 16:00:27 [   31.892585] [c0:     kworker/0:2:   61][<ffff0000080ce078>] kthread+0x130/0x138
<   38.580640> 2019-03-31 16:00:27 [   31.897561] [c0:     kworker/0:2:   61][<ffff000008084ed0>] ret_from_fork+0x10/0x18
<   38.585969> 2019-03-31 16:00:27 [   31.902890] [c0:     kworker/0:2:   61]Code: bad PC value
<   38.589034> 2019-03-31 16:00:27 [   31.905955] [c0:     kworker/0:2:   61]---[ end trace 836de98ae3b4fd26 ]---

[xiaojuan_qi]

Is there anyone who met this panic before?