mt8173-elm-hana kernel panic (BRK exception in snd_soc_dapm_add_path ) during boot

[nuclearcat]

It is unclear if it is regression or due newly added kernel options and as result more wide hardware support

 1407 09:14:46.553691  <6>[    7.231001] hub 1-0:1.0: USB hub found
 1408 09:14:46.558427  <6>[    7.235355] hub 1-0:1.0: 2 ports detected
 1409 09:14:46.569003  <6>[    7.242095] usb usb2: We don't know the algorithms for LPM for this host, disabling LPM.
 1410 09:14:46.576691  <6>[    7.254143] hub 2-0:1.0: USB hub found
 1411 09:14:46.580967  <6>[    7.258323] hub 2-0:1.0: 1 port detected
 1412 09:14:46.589431  <6>[    7.264264] mtu3 11271000.usb: xHCI platform device register success...
 1413 09:14:46.648542  <6>[    7.321671] mt8173-afe-pcm 11220000.audio-controller: MT8173 AFE driver initialized.
 1414 09:14:46.666204  <4>[    7.341993] Unexpected kernel BRK exception at EL1
 1415 09:14:46.673299  <0>[    7.347156] Internal error: BRK handler: 00000000f20003e8 [#1] PREEMPT SMP
 1416 09:14:46.676714  <4>[    7.354290] Modules linked in:
 1417 09:14:46.683787  <4>[    7.357601] CPU: 2 PID: 54 Comm: kworker/u8:2 Not tainted 6.2.0-rc4-next-20230119 #1
 1418 09:14:46.689253  <4>[    7.365602] Hardware name: Google Hana (DT)
 1419 09:14:46.695001  <4>[    7.370041] Workqueue: events_unbound deferred_probe_work_func
 1420 09:14:46.701600  <4>[    7.376140] pstate: 20000005 (nzCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--)
 1421 09:14:46.707785  <4>[    7.383359] pc : snd_soc_dapm_add_path+0x42c/0x474
 1422 09:14:46.711438  <4>[    7.388409] lr : snd_soc_dapm_add_path+0x388/0x474
 1423 09:14:46.715698  <4>[    7.393456] sp : ffff80000c75b750
 1424 09:14:46.722873  <4>[    7.397023] x29: ffff80000c75b750 x28: ffff0000cc800200 x27: ffff0000cc800e00
 1425 09:14:46.729866  <4>[    7.404420] x26: ffff800009cc4140 x25: 0000000000004000 x24: ffff0000cc831158
 1426 09:14:46.738149  <4>[    7.411817] x23: ffff0000ca2c65b0 x22: 0000000000000001 x21: 0000000000000001
 1427 09:14:46.745118  <4>[    7.419212] x20: 0000000000000001 x19: ffff0000cc831100 x18: ffff80000b6945e8
 1428 09:14:46.745455  
 1429 09:14:46.752583  <4>[    7.426608] x17: ffff80000932fa34 x16: 0000000000000000 x15: 0000000000000028
 1430 09:14:46.760007  <4>[    7.434004] x14: 000000000004ffff x13: ffff80000bc36e80 x12: 0000000000040000
 1431 09:14:46.767648  <4>[    7.441399] x11: 1fffffffffffffff x10: 000000009f713387 x9 : ffff80000817221c
 1432 09:14:46.775347  <4>[    7.448795] x8 : 0000000000000118 x7 : ffff800008c45c48 x6 : ffff80000bfe2000
 1433 09:14:46.781907  <4>[    7.456189] x5 : 0000000000000001 x4 : ffff80000b285000 x3 : ffff80000c75b674
 1434 09:14:46.790023  <4>[    7.463585] x2 : 0000000000000000 x1 : 0000000000000000 x0 : 0000000000005000
 1435 09:14:46.792373  <4>[    7.470981] Call trace:
 1436 09:14:46.797100  <4>[    7.473682]  snd_soc_dapm_add_path+0x42c/0x474
 1437 09:14:46.801528  <4>[    7.478383]  snd_soc_dapm_add_route+0x1d8/0x40c
 1438 09:14:46.806504  <4>[    7.483169]  snd_soc_dapm_add_routes+0x60/0xa0
 1439 09:14:46.811224  <4>[    7.487870]  soc_probe_component+0x258/0x3d4
 1440 09:14:46.815513  <4>[    7.492395]  snd_soc_bind_card+0x4b0/0xd2c
 1441 09:14:46.819930  <4>[    7.496747]  snd_soc_register_card+0xf4/0x110
 1442 09:14:46.825239  <4>[    7.501359]  devm_snd_soc_register_card+0x54/0xb0
 1443 09:14:46.829709  <4>[    7.506319]  mt8173_rt5650_dev_probe+0x1a4/0x280
 1444 09:14:46.833929  <4>[    7.511193]  platform_probe+0x70/0x100
 1445 09:14:46.838052  <4>[    7.515199]  really_probe+0xd4/0x3e4
 1446 09:14:46.842263  <4>[    7.519029]  __driver_probe_device+0x8c/0x1a0
 1447 09:14:46.846409  <4>[    7.523642]  driver_probe_device+0x4c/0x13c
 1448 09:14:46.851345  <4>[    7.528081]  __device_attach_driver+0xd8/0x180
 1449 09:14:46.855588  <4>[    7.532780]  bus_for_each_drv+0x88/0xdc
 1450 09:14:46.859485  <4>[    7.536870]  __device_attach+0xb4/0x1f0
 1451 09:14:46.860124  
 1452 09:14:46.863729  <4>[    7.540961]  device_initial_probe+0x28/0x3c
 1453 09:14:46.868595  <4>[    7.545401]  bus_probe_device+0xa8/0xb0
 1454 09:14:46.872982  <4>[    7.549491]  deferred_probe_work_func+0xc4/0x11c
 1455 09:14:46.877147  <4>[    7.554365]  process_one_work+0x280/0x6e0
 1456 09:14:46.881320  <4>[    7.558630]  worker_thread+0x228/0x430
 1457 09:14:46.885107  <4>[    7.562633]  kthread+0x110/0x114
 1458 09:14:46.888423  <4>[    7.566117]  ret_from_fork+0x10/0x20
 1459 09:14:46.889054  
 1460 09:14:46.894781  <0>[    7.569950] Code: f9400a60 17ffff6b 12800080 17ffffd8 (d4207d00) 
 1461 09:14:46.895523  
 1462 09:14:46.899241  <4>[    7.576299] ---[ end trace 0000000000000000 ]---
 1463 09:14:46.899754  
 1464 09:14:46.905597  <6>[    7.581171] note: kworker/u8:2[54] exited with preempt_count 1
 1465 09:14:46.910673  Setting prompt string to ['-+\\[ end trace \\w* \\]-+[^\\n]*\\r\\n', '/ #', 'Login timed out', 'Login incorrect']
 1466 09:14:46.911881  <4>[    7.587872] ------------[ cut here ]------------
 1467 09:14:46.921750  <4>[    7.592786] WARNING: CPU: 2 PID: 0 at kernel/context_tracking.c:128 ct_kernel_exit.constprop.0+0x11c/0x180
 1468 09:14:46.928174  <6>[    7.596573] usb 2-1: new SuperSpeed USB device number 2 using xhci-mtk
 1469 09:14:46.931522  <4>[    7.602722] Modules linked in:
 1470 09:14:46.940148  <4>[    7.602736] CPU: 2 PID: 0 Comm: swapper/2 Tainted: G      D            6.2.0-rc4-next-20230119 #1
 1471 09:14:46.945437  <4>[    7.602752] Hardware name: Google Hana (DT)
 1472 09:14:46.952048  <4>[    7.602759] pstate: 200003c5 (nzCv DAIF -PAN -UAO -TCO -DIT -SSBS BTYPE=--)
 1473 09:14:46.957873  <4>[    7.633795] pc : ct_kernel_exit.constprop.0+0x11c/0x180
 1474 09:14:46.962074  <4>[    7.639318] lr : ct_idle_enter+0x10/0x1c
 1475 09:14:46.965885  <4>[    7.643533] sp : ffff80000c4abbd0
 1476 09:14:46.970065  <6>[    7.645906] hub 2-1:1.0: USB hub found
 1477 09:14:46.976626  <4>[    7.647105] x29: ffff80000c4abbd0 x28: 0000000000000000 x27: 0000000000000000
 1478 09:14:46.980876  <6>[    7.653905] hub 2-1:1.0: 2 ports detected
 1479 09:14:46.981461  
 1480 09:14:46.988916  <4>[    7.658556] x26: 0000000000000001 x25: ffff80000919e660 x24: ffff0000ca233880
 1481 09:14:46.996085  <4>[    7.658581] x23: ffff80000925b040 x22: 0000000000010000 x21: 00000000000003c0
 1482 09:14:47.004370  <4>[    7.677756] x20: ffff0000ff7718b8 x19: ffff80000a7bd8b8 x18: ffff80000b6945e8
 1483 09:14:47.010745  <4>[    7.685206] x17: 0000000000000000 x16: 0000000000000000 x15: 0000000000000000
 1484 09:14:47.018718  <4>[    7.692654] x14: 0000000000000002 x13: 0000000000000000 x12: 0000000000000934
 1485 09:14:47.026333  <4>[    7.700102] x11: 071c71c71c71c71c x10: 0000000000000934 x9 : ffff800008038e44
 1486 09:14:47.033500  <4>[    7.707552] x8 : ffff0000c095e170 x7 : 0000000000010989 x6 : 0000000000000000
 1487 09:14:47.041359  <4>[    7.715001] x5 : ffff80000c4ac000 x4 : 4000000000000002 x3 : ffff8000f4fb4000
 1488 09:14:47.048469  <4>[    7.722450] x2 : ffff80000c4abbd0 x1 : ffff80000a7bd8b8 x0 : 4000000000000000
 1489 09:14:47.049249  
 1490 09:14:47.050731  <4>[    7.729898] Call trace:
 1491 09:14:47.050998  
 1492 09:14:47.056383  <4>[    7.732621]  ct_kernel_exit.constprop.0+0x11c/0x180
 1493 09:14:47.059890  <4>[    7.737795]  ct_idle_enter+0x10/0x1c
 1494 09:14:47.063901  <4>[    7.741660]  cpu_suspend+0x80/0x290
 1495 09:14:47.064629  
 1496 09:14:47.068799  <4>[    7.745445]  psci_cpu_suspend_enter+0x14c/0x190
 1497 09:14:47.069581  
 1498 09:14:47.073718  <4>[    7.750273]  psci_enter_idle_state+0x50/0x90
 1499 09:14:47.077337  <4>[    7.754836]  cpuidle_enter_state+0xd0/0x4e4
 1500 09:14:47.077615  
 1501 09:14:47.081582  <4>[    7.759311]  cpuidle_enter+0x40/0x60
 1502 09:14:47.085471  <4>[    7.763178]  do_idle+0x240/0x2d0
 1503 09:14:47.089656  <4>[    7.766697]  cpu_startup_entry+0x2c/0x34
 1504 09:14:47.094562  <4>[    7.770912]  secondary_start_kernel+0x138/0x160
 1505 09:14:47.098311  <4>[    7.775739]  __secondary_switched+0xb0/0xb4
 1506 09:14:47.102357  <4>[    7.780211] irq event stamp: 11910
 1507 09:14:47.103036  
 1508 09:14:47.111690  <4>[    7.783893] hardirqs last  enabled at (11909): [<ffff8000081bcf2c>] tick_nohz_idle_exit+0x78/0x1dc
 1509 09:14:47.120286  <4>[    7.793166] hardirqs last disabled at (11910): [<ffff80000973d3e8>] __schedule+0x6f8/0xc60
 1510 09:14:47.129119  <4>[    7.801742] softirqs last  enabled at (11894): [<ffff800008010bb8>] __do_softirq+0x4e8/0x63c
 1511 09:14:47.137735  <4>[    7.810481] softirqs last disabled at (11883): [<ffff8000080175b8>] ____do_softirq+0x18/0x24
 1512 09:14:47.138015  
 1513 09:14:47.142842  <4>[    7.819225] ---[ end trace 0000000000000000 ]---
 1514 09:14:47.143139  Setting prompt string to ['-\\[ cut here \\]', 'Unhandled fault', 'BUG: KCSAN:', 'BUG: KASAN:', 'BUG: KFENCE:', 'Oops(?: -|:)', 'WARNING:', '(kernel BUG at|BUG:)', 'invalid opcode:', 'Kernel panic - not syncing', '/ #', 'Login timed out', 'Login incorrect']
 1515 09:14:47.143224  login-action: kernel 'warning'
 1516 09:14:47.143303  [login-action] Waiting for messages, (timeout 00:04:20)

[gctucker]

I guess we'll be able to see if it's reproducible on mainline, next and stable 6.1?

[gctucker]

@nuclearcat Please add more context to this issue e.g. kernel version, build etc. and also add it to the kernel bugs workboard.

[nuclearcat]

I am still in progress of collecting more information

[nuclearcat]

It seems preferable to wait few more staging runs, to see if bug repeats, and if it appears on stable and mainline.

[padovan]

Old issue. (also we are not tracking kernel test failure/issues through GitHub anymore)