On 08/10/2019 10:06, John Garry wrote:
On 08/10/2019 05:18, Ming Lei wrote:
Hi,
Thomas mentioned:
"
That was the constraint of managed interrupts from the very
beginning:
The driver/subsystem has to quiesce the interrupt line and the
associated
queue _before_ it gets shutdown in CPU unplug and not fiddle
with it
until it's restarted by the core when the CPU is plugged in again.
"
But no drivers or blk-mq do that before one hctx becomes dead(all
CPUs for one hctx are offline), and even it is worse, blk-mq stills tries
to run hw queue after hctx is dead, see blk_mq_hctx_notify_dead().
This patchset tries to address the issue by two stages:
1) add one new cpuhp state of CPUHP_AP_BLK_MQ_ONLINE
- mark the hctx as internal stopped, and drain all in-flight requests
if the hctx is going to be dead.
2) re-submit IO in the state of CPUHP_BLK_MQ_DEAD after the hctx
becomes dead
- steal bios from the request, and resubmit them via
generic_make_request(),
then these IO will be mapped to other live hctx for dispatch
Please comment & review, thanks!
John, I don't add your tested-by tag since V3 have some changes,
and I appreciate if you may run your test on V3.
Will do, Thanks
Hi Ming,
I got this warning once:
[ 162.558185] CPU10: shutdown
[ 162.560994] psci: CPU10 killed.
[ 162.593939] CPU9: shutdown
[ 162.596645] psci: CPU9 killed.
[ 162.625838] CPU8: shutdown
[ 162.628550] psci: CPU8 killed.
[ 162.685790] CPU7: shutdown
[ 162.688496] psci: CPU7 killed.
[ 162.725771] CPU6: shutdown
[ 162.728486] psci: CPU6 killed.
[ 162.753884] CPU5: shutdown
[ 162.756591] psci: CPU5 killed.
[ 162.785584] irq_shutdown
[ 162.788277] IRQ 800: no longer affine to CPU4
[ 162.793267] CPU4: shutdown
[ 162.795975] psci: CPU4 killed.
[ 162.849680] run queue from wrong CPU 13, hctx active
[ 162.849692] CPU3: shutdown
[ 162.854649] CPU: 13 PID: 874 Comm: kworker/3:2H Not tainted
5.4.0-rc1-00012-gad025dd3d001 #1098
[ 162.854653] Hardware name: Huawei D06 /D06, BIOS Hisilicon D06 UEFI
RC0 - V1.16.01 03/15/2019
[ 162.857362] psci: CPU3 killed.
[ 162.866039] Workqueue: kblockd blk_mq_run_work_fn
[ 162.882281] Call trace:
[ 162.884716] dump_backtrace+0x0/0x150
[ 162.888365] show_stack+0x14/0x20
[ 162.891668] dump_stack+0xb0/0xf8
[ 162.894970] __blk_mq_run_hw_queue+0x11c/0x128
[ 162.899400] blk_mq_run_work_fn+0x1c/0x28
[ 162.903397] process_one_work+0x1e0/0x358
[ 162.907393] worker_thread+0x40/0x488
[ 162.911042] kthread+0x118/0x120
[ 162.914257] ret_from_fork+0x10/0x18
[ 162.917834] run queue from wrong CPU 13, hctx active
[ 162.922789] CPU: 13 PID: 874 Comm: kworker/3:2H Not tainted
5.4.0-rc1-00012-gad025dd3d001 #1098
[ 162.931472] Hardware name: Huawei D06 /D06, BIOS Hisilicon D06 UEFI
RC0 - V1.16.01 03/15/2019
[ 162.939983] Workqueue: kblockd blk_mq_run_work_fn
[ 162.944674] Call trace:
[ 162.947107] dump_backtrace+0x0/0x150
[ 162.950755] show_stack+0x14/0x20
[ 162.954057] dump_stack+0xb0/0xf8
[ 162.957359] __blk_mq_run_hw_queue+0x11c/0x128
[ 162.961788] blk_mq_run_work_fn+0x1c/0x28
[ 162.965784] process_one_work+0x1e0/0x358
[ 162.969780] worker_thread+0x40/0x488
[ 162.973429] kthread+0x118/0x120
[ 162.976644] ret_from_fork+0x10/0x18
[ 162.980214] run queue from wrong CPU 13, hctx active
[ 162.985171] CPU: 13 PID: 874 Comm: kworker/3:2H Not tainted
5.4.0-rc1-00012-gad025dd3d001 #1098
[ 162.993853] Hardware name: Huawei D06 /D06, BIOS Hisilicon D06 UEFI
RC0 - V1.16.01 03/15/2019
[ 163.002366] Workqueue: kblockd blk_mq_run_work_fn
[ 163.007057] Call trace:
[ 163.009490] dump_backtrace+0x0/0x150
[ 163.013138] show_stack+0x14/0x20
[ 163.016440] dump_stack+0xb0/0xf8
[ 163.019742] __blk_mq_run_hw_queue+0x11c/0x128
[ 163.024172] blk_mq_run_work_fn+0x1c/0x28
[ 163.028167] process_one_work+0x1e0/0x358
[ 163.032163] worker_thread+0x238/0x488
[ 163.035899] kthread+0x118/0x120
[ 163.039113] ret_from_fork+0x10/0x18
[ 163.042736] run queue from wrong CPU 13, hctx active
[ 163.047692] CPU: 13 PID: 874 Comm: kworker/3:2H Not tainted
5.4.0-rc1-00012-gad025dd3d001 #1098
[ 163.056374] Hardware name: Huawei D06 /D06, BIOS Hisilicon D06 UEFI
RC0 - V1.16.01 03/15/2019
[ 163.064885] Workqueue: kblockd blk_mq_run_work_fn
[ 163.069575] Call trace:
[ 163.072008] dump_backtrace+0x0/0x150
[ 163.075656] show_stack+0x14/0x20
[ 163.078958] dump_stack+0xb0/0xf8
[ 163.082260] __blk_mq_run_hw_queue+0x11c/0x128
[ 163.086690] blk_mq_run_work_fn+0x1c/0x28
[ 163.090686] process_one_work+0x1e0/0x358
[ 163.094681] worker_thread+0x238/0x488
[ 163.098417] kthread+0x118/0x120
[ 163.101631] ret_from_fork+0x10/0x18
[ 163.105200] run queue from wrong CPU 13, hctx active
[ 163.110534] CPU: 13 PID: 874 Comm: kworker/3:2H Not tainted
5.4.0-rc1-00012-gad025dd3d001 #1098
[ 163.111852] CPU2: shutdown
[ 163.119218] Hardware name: Huawei D06 /D06, BIOS Hisilicon D06 UEFI
RC0 - V1.16.01 03/15/2019
[ 163.119222] Workqueue: kblockd blk_mq_run_work_fn
[ 163.119223] Call trace:
[ 163.119224] dump_backtrace+0x0/0x150
[ 163.119226] show_stack+0x14/0x20
[ 163.119228] dump_stack+0xb0/0xf8
[ 163.119230] __blk_mq_run_hw_queue+0x11c/0x128
[ 163.119234] blk_mq_run_work_fn+0x1c/0x28
[ 163.121943] psci: CPU2 killed.
[ 163.130439] process_one_work+0x1e0/0x358
[ 163.130441] worker_thread+0x238/0x488
[ 163.130443] kthread+0x118/0x120
[ 163.130447] ret_from_fork+0x10/0x18
[ 163.173789] run queue from wrong CPU 13, hctx active
[ 163.178743] CPU: 13 PID: 874 Comm: kworker/3:2H Not tainted
5.4.0-rc1-00012-gad025dd3d001 #1098
[ 163.187425] Hardware name: Huawei D06 /D06, BIOS Hisilicon D06 UEFI
RC0 - V1.16.01 03/15/2019
[ 163.195937] Workqueue: kblockd blk_mq_run_work_fn
[ 163.200627] Call trace:
[ 163.203061] dump_backtrace+0x0/0x150
[ 163.206709] show_stack+0x14/0x20
[ 163.210011] dump_stack+0xb0/0xf8
[ 163.213312] __blk_mq_run_hw_queue+0x11c/0x128
[ 163.217742] blk_mq_run_work_fn+0x1c/0x28
[ 163.221738] process_one_work+0x1e0/0x358
[ 163.225733] worker_thread+0x238/0x488
[ 163.229469] kthread+0x118/0x120
[ 163.232684] ret_from_fork+0x10/0x18
[ 163.236253] run queue from wrong CPU 13, hctx active
[ 163.241597] CPU: 13 PID: 874 Comm: kworker/3:2H Not tainted
5.4.0-rc1-00012-gad025dd3d001 #1098
[ 163.241691] CPU1: shutdown
[ 163.250281] Hardware name: Huawei D06 /D06, BIOS Hisilicon D06 UEFI
RC0 - V1.16.01 03/15/2019
[ 163.250285] Workqueue: kblockd blk_mq_run_work_fn
[ 163.250287] Call trace:
[ 163.250291] dump_backtrace+0x0/0x150
[ 163.252998] psci: CPU1 killed.
[ 163.261496] show_stack+0x14/0x20
[ 163.261499] dump_stack+0xb0/0xf8
[ 163.261503] __blk_mq_run_hw_queue+0x11c/0x128
[ 163.279008] process 870 (fio) no longer affine to cpu0
[ 163.291463] blk_mq_run_work_fn+0x1c/0x28
[ 163.295458] process_one_work+0x1e0/0x358
[ 163.299454] worker_thread+0x238/0x488
[ 163.303189] kthread+0x118/0x120
[ 163.306404] ret_from_fork+0x10/0x18
[ 163.309975] run queue from wrong CPU 13, hctx active
[ 163.314929] CPU: 13 PID: 874 Comm: kworker/3:2H Not tainted
5.4.0-rc1-00012-gad025dd3d001 #1098
[ 163.323611] Hardware name: Huawei D06 /D06, BIOS Hisilicon D06 UEFI
RC0 - V1.16.01 03/15/2019
[ 163.332122] Workqueue: kblockd blk_mq_run_work_fn
[ 163.336812] Call trace:
[ 163.339245] dump_backtrace+0x0/0x150
[ 163.342894] show_stack+0x14/0x20
[ 163.346195] dump_stack+0xb0/0xf8
[ 163.349497] __blk_mq_run_hw_queue+0x11c/0x128
[ 163.353927] blk_mq_run_work_fn+0x1c/0x28
[ 163.357923] process_one_work+0x1e0/0x358
[ 163.361918] worker_thread+0x238/0x488
[ 163.365654] kthread+0x118/0x120
[ 163.368868] ret_from_fork+0x10/0x18
[ 163.372437] run queue from wrong CPU 13, hctx active
[ 163.377391] CPU: 13 PID: 874 Comm: kworker/3:2H Not tainted
5.4.0-rc1-00012-gad025dd3d001 #1098
[ 163.386073] Hardware name: Huawei D06 /D06, BIOS Hisilicon D06 UEFI
RC0 - V1.16.01 03/15/2019
[ 163.394583] Workqueue: kblockd blk_mq_run_work_fn
[ 163.399273] Call trace:
[ 163.401706] dump_backtrace+0x0/0x150
[ 163.405354] show_stack+0x14/0x20
[ 163.408656] dump_stack+0xb0/0xf8
[ 163.411958] __blk_mq_run_hw_queue+0x11c/0x128
[ 163.416388] blk_mq_run_work_fn+0x1c/0x28
[ 163.420384] process_one_work+0x1e0/0x358
[ 163.424379] worker_thread+0x238/0x488
[ 163.428115] kthread+0x118/0x120
[ 163.431329] ret_from_fork+0x10/0x18
[ 163.434934] run queue from wrong CPU 13, hctx active
[ 163.439887] CPU: 13 PID: 874 Comm: kworker/3:2H Not tainted
5.4.0-rc1-00012-gad025dd3d001 #1098
[ 163.448570] Hardware name: Huawei D06 /D06, BIOS Hisilicon D06 UEFI
RC0 - V1.16.01 03/15/2019
[ 163.457080] Workqueue: kblockd blk_mq_run_work_fn
[ 163.461770] Call trace:
[ 163.464203] dump_backtrace+0x0/0x150
[ 163.467851] show_stack+0x14/0x20
[ 163.471153] dump_stack+0xb0/0xf8
[ 163.474455] __blk_mq_run_hw_queue+0x11c/0x128
[ 163.478885] blk_mq_run_work_fn+0x1c/0x28
[ 163.482881] process_one_work+0x1e0/0x358
[ 163.486877] worker_thread+0x238/0x488
[ 163.490613] kthread+0x118/0x120
[ 163.493828] ret_from_fork+0x10/0x18
[ 163.497424] run queue from wrong CPU 13, hctx active
[ 163.502378] CPU: 13 PID: 874 Comm: kworker/3:2H Not tainted
5.4.0-rc1-00012-gad025dd3d001 #1098
[ 163.511061] Hardware name: Huawei D06 /D06, BIOS Hisilicon D06 UEFI
RC0 - V1.16.01 03/15/2019
[ 163.519572] Workqueue: kblockd blk_mq_run_work_fn
[ 163.524262] Call trace:
[ 163.526696] dump_backtrace+0x0/0x150
[ 163.530344] show_stack+0x14/0x20
[ 163.533646] dump_stack+0xb0/0xf8
[ 163.536948] __blk_mq_run_hw_queue+0x11c/0x128
[ 163.541378] blk_mq_run_work_fn+0x1c/0x28
[ 163.545375] process_one_work+0x1e0/0x358
[ 163.549370] worker_thread+0x238/0x488
[ 163.553107] kthread+0x118/0x120
[ 163.556321] ret_from_fork+0x10/0x18
[ 163.559908] run queue from wrong CPU 24, hctx active
[ 163.564871] CPU: 24 PID: 874 Comm: kworker/3:2H Not tainted
5.4.0-rc1-00012-gad025dd3d001 #1098
[ 163.573554] Hardware name: Huawei D06 /D06, BIOS Hisilicon D06 UEFI
RC0 - V1.16.01 03/15/2019
[ 163.582072] Workqueue: kblockd blk_mq_run_work_fn
[ 163.586764] Call trace:
[ 163.589199] dump_backtrace+0x0/0x150
[ 163.592848] show_stack+0x14/0x20
[ 163.596153] dump_stack+0xb0/0xf8
[ 163.599455] __blk_mq_run_hw_queue+0x11c/0x128
[ 163.603885] blk_mq_run_work_fn+0x1c/0x28
[ 163.607882] process_one_work+0x1e0/0x358
[ 163.611877] worker_thread+0x238/0x488
[ 163.615613] kthread+0x118/0x120
[ 163.618828] ret_from_fork+0x10/0x18
[ 163.622404] run queue from wrong CPU 24, hctx active
[ 163.627358] CPU: 24 PID: 874 Comm: kworker/3:2H Not tainted
5.4.0-rc1-00012-gad025dd3d001 #1098
[ 163.636041] Hardware name: Huawei D06 /D06, BIOS Hisilicon D06 UEFI
RC0 - V1.16.01 03/15/2019
[ 163.644552] Workqueue: kblockd blk_mq_run_work_fn
[ 163.649242] Call trace:
[ 163.651674] dump_backtrace+0x0/0x150
[ 163.655322] show_stack+0x14/0x20
[ 163.658623] dump_stack+0xb0/0xf8
[ 163.661924] __blk_mq_run_hw_queue+0x11c/0x128
[ 163.666354] blk_mq_run_work_fn+0x1c/0x28
[ 163.670349] process_one_work+0x1e0/0x358
[ 163.674345] worker_thread+0x238/0x488
[ 163.678081] kthread+0x118/0x120
[ 163.681295] ret_from_fork+0x10/0x18
[ 163.684864] run queue from wrong CPU 24, hctx active
[ 163.689819] CPU: 24 PID: 874 Comm: kworker/3:2H Not tainted
5.4.0-rc1-00012-gad025dd3d001 #1098
[ 163.698501] Hardware name: Huawei D06 /D06, BIOS Hisilicon D06 UEFI
RC0 - V1.16.01 03/15/2019
[ 163.707011] Workqueue: kblockd blk_mq_run_work_fn
[ 163.711701] Call trace:
[ 163.714133] dump_backtrace+0x0/0x150
[ 163.717781] show_stack+0x14/0x20
[ 163.721082] dump_stack+0xb0/0xf8
[ 163.724383] __blk_mq_run_hw_queue+0x11c/0x128
[ 163.728813] blk_mq_run_work_fn+0x1c/0x28
[ 163.732808] process_one_work+0x1e0/0x358
[ 163.736803] worker_thread+0x238/0x488
[ 163.740539] kthread+0x118/0x120
[ 163.743753] ret_from_fork+0x10/0x18
[ 163.747342] run queue from wrong CPU 48, hctx active
[ 163.752311] CPU: 48 PID: 874 Comm: kworker/3:2H Not tainted
5.4.0-rc1-00012-gad025dd3d001 #1098
[ 163.760995] Hardware name: Huawei D06 /D06, BIOS Hisilicon D06 UEFI
RC0 - V1.16.01 03/15/2019
[ 163.769516] Workqueue: kblockd blk_mq_run_work_fn
[ 163.774208] Call trace:
[ 163.776644] dump_backtrace+0x0/0x150
[ 163.780294] show_stack+0x14/0x20
[ 163.783600] dump_stack+0xb0/0xf8
[ 163.786902] __blk_mq_run_hw_queue+0x11c/0x128
[ 163.791332] blk_mq_run_work_fn+0x1c/0x28
[ 163.795330] process_one_work+0x1e0/0x358
[ 163.799327] worker_thread+0x238/0x488
[ 163.803064] kthread+0x118/0x120
[ 163.806279] ret_from_fork+0x10/0x18
[ 163.809855] run queue from wrong CPU 48, hctx active
[ 163.814811] CPU: 48 PID: 874 Comm: kworker/3:2H Not tainted
5.4.0-rc1-00012-gad025dd3d001 #1098
[ 163.823496] Hardware name: Huawei D06 /D06, BIOS Hisilicon D06 UEFI
RC0 - V1.16.01 03/15/2019
[ 163.832008] Workqueue: kblockd blk_mq_run_work_fn
[ 163.836698] Call trace:
[ 163.839132] dump_backtrace+0x0/0x150
[ 163.842782] show_stack+0x14/0x20
[ 163.846084] dump_stack+0xb0/0xf8
[ 163.849386] __blk_mq_run_hw_queue+0x11c/0x128
[ 163.853817] blk_mq_run_work_fn+0x1c/0x28
[ 163.857813] process_one_work+0x1e0/0x358
[ 163.861810] worker_thread+0x238/0x488
[ 163.865546] kthread+0x118/0x120
[ 163.868762] ret_from_fork+0x10/0x18
[ 163.872454] run queue from wrong CPU 48, hctx active
[ 163.877411] CPU: 48 PID: 874 Comm: kworker/3:2H Not tainted
5.4.0-rc1-00012-gad025dd3d001 #1098
[ 163.886095] Hardware name: Huawei D06 /D06, BIOS Hisilicon D06 UEFI
RC0 - V1.16.01 03/15/2019
[ 163.894606] Workqueue: kblockd blk_mq_run_work_fn
[ 163.899297] Call trace:
[ 163.901731] dump_backtrace+0x0/0x150
[ 163.905379] show_stack+0x14/0x20
[ 163.908681] dump_stack+0xb0/0xf8
[ 163.911983] __blk_mq_run_hw_queue+0x11c/0x128
[ 163.916414] blk_mq_run_work_fn+0x1c/0x28
[ 163.920411] process_one_work+0x1e0/0x358
[ 163.924407] worker_thread+0x238/0x488
[ 163.928143] kthread+0x118/0x120
[ 163.931359] ret_from_fork+0x10/0x18
[ 163.934932] run queue from wrong CPU 48, hctx active
[ 163.939888] CPU: 48 PID: 874 Comm: kworker/3:2H Not tainted
5.4.0-rc1-00012-gad025dd3d001 #1098
[ 163.948571] Hardware name: Huawei D06 /D06, BIOS Hisilicon D06 UEFI
RC0 - V1.16.01 03/15/2019
[ 163.957082] Workqueue: kblockd blk_mq_run_work_fn
[ 163.961773] Call trace:
[ 163.964207] dump_backtrace+0x0/0x150
[ 163.967855] show_stack+0x14/0x20
[ 163.971157] dump_stack+0xb0/0xf8
[ 163.974459] __blk_mq_run_hw_queue+0x11c/0x128
[ 163.978890] blk_mq_run_work_fn+0x1c/0x28
[ 163.982886] process_one_work+0x1e0/0x358
[ 163.986882] worker_thread+0x238/0x488
[ 163.990618] kthread+0x118/0x120
[ 163.993833] ret_from_fork+0x10/0x18
[ 163.997406] run queue from wrong CPU 48, hctx active
[ 164.002361] CPU: 48 PID: 874 Comm: kworker/3:2H Not tainted
5.4.0-rc1-00012-gad025dd3d001 #1098
[ 164.011045] Hardware name: Huawei D06 /D06, BIOS Hisilicon D06 UEFI
RC0 - V1.16.01 03/15/2019
[ 164.019556] Workqueue: kblockd blk_mq_run_work_fn
[ 164.024247] Call trace:
[ 164.026681] dump_backtrace+0x0/0x150
[ 164.030329] show_stack+0x14/0x20
[ 164.033631] dump_stack+0xb0/0xf8
[ 164.036934] __blk_mq_run_hw_queue+0x11c/0x128
[ 164.041364] blk_mq_run_work_fn+0x1c/0x28
[ 164.045360] process_one_work+0x1e0/0x358
[ 164.049357] worker_thread+0x238/0x488
[ 164.053093] kthread+0x118/0x120
[ 164.056308] ret_from_fork+0x10/0x18
[ 164.059885] run queue from wrong CPU 48, hctx active
[ 164.064841] CPU: 48 PID: 874 Comm: kworker/3:2H Not tainted
5.4.0-rc1-00012-gad025dd3d001 #1098
[ 164.073525] Hardware name: Huawei D06 /D06, BIOS Hisilicon D06 UEFI
RC0 - V1.16.01 03/15/2019
[ 164.082036] Workqueue: kblockd blk_mq_run_work_fn
[ 164.086726] Call trace:
[ 164.089160] dump_backtrace+0x0/0x150
[ 164.092809] show_stack+0x14/0x20
[ 164.096111] dump_stack+0xb0/0xf8
[ 164.099413] __blk_mq_run_hw_queue+0x11c/0x128
[ 164.103844] blk_mq_run_work_fn+0x1c/0x28
[ 164.107840] process_one_work+0x1e0/0x358
[ 164.111836] worker_thread+0x238/0x488
[ 164.115573] kthread+0x118/0x120
[ 164.118788] ret_from_fork+0x10/0x18
[ 164.122361] run queue from wrong CPU 48, hctx active
[ 164.127317] CPU: 48 PID: 874 Comm: kworker/3:2H Not tainted
5.4.0-rc1-00012-gad025dd3d001 #1098
[ 164.136000] Hardware name: Huawei D06 /D06, BIOS Hisilicon D06 UEFI
RC0 - V1.16.01 03/15/2019
[ 164.144512] Workqueue: kblockd blk_mq_run_work_fn
[ 164.149203] Call trace:
[ 164.151636] dump_backtrace+0x0/0x150
[ 164.155285] show_stack+0x14/0x20
[ 164.158587] dump_stack+0xb0/0xf8
[ 164.161889] __blk_mq_run_hw_queue+0x11c/0x128
[ 164.166319] blk_mq_run_work_fn+0x1c/0x28
[ 164.170315] process_one_work+0x1e0/0x358
[ 164.174312] worker_thread+0x238/0x488
[ 164.178048] kthread+0x118/0x120
[ 164.181263] ret_from_fork+0x10/0x18
[ 164.184839] run queue from wrong CPU 48, hctx active
[ 164.189794] CPU: 48 PID: 874 Comm: kworker/3:2H Not tainted
5.4.0-rc1-00012-gad025dd3d001 #1098
[ 164.198478] Hardware name: Huawei D06 /D06, BIOS Hisilicon D06 UEFI
RC0 - V1.16.01 03/15/2019
[ 164.206989] Workqueue: kblockd blk_mq_run_work_fn
[ 164.211680] Call trace:
[ 164.214114] dump_backtrace+0x0/0x150
[ 164.217762] show_stack+0x14/0x20
[ 164.221064] dump_stack+0xb0/0xf8
[ 164.224367] __blk_mq_run_hw_queue+0x11c/0x128
[ 164.228797] blk_mq_run_work_fn+0x1c/0x28
[ 164.232793] process_one_work+0x1e0/0x358
[ 164.236789] worker_thread+0x238/0x488
[ 164.240525] kthread+0x118/0x120
[ 164.243740] ret_from_fork+0x10/0x18
[ 164.247348] run queue from wrong CPU 11, hctx active
[ 164.252324] CPU: 11 PID: 874 Comm: kworker/3:2H Not tainted
5.4.0-rc1-00012-gad025dd3d001 #1098
[ 164.261008] Hardware name: Huawei D06 /D06, BIOS Hisilicon D06 UEFI
RC0 - V1.16.01 03/15/2019
[ 164.269524] Workqueue: kblockd blk_mq_run_work_fn
[ 164.274215] Call trace:
[ 164.276649] dump_backtrace+0x0/0x150
[ 164.280299] show_stack+0x14/0x20
[ 164.283603] dump_stack+0xb0/0xf8
[ 164.286904] __blk_mq_run_hw_queue+0x11c/0x128
[ 164.291335] blk_mq_run_work_fn+0x1c/0x28
[ 164.295332] process_one_work+0x1e0/0x358
[ 164.299328] worker_thread+0x238/0x488
[ 164.303065] kthread+0x118/0x120
[ 164.306279] ret_from_fork+0x10/0x18
[ 164.857365] irq_shutdown
[ 164.859957] irq_shutdown
[ 164.862676] IRQ 799: no longer affine to CPU0
[ 164.867332] CPU0: shutdown
[ 164.870048] psci: CPU0 killed.
root@(none)$
[I manually added the irq_shutdown print]
From looking at 7df938fbc4ee641, appearantly it's harmless...
I'll continue to test.
John
V3:
- re-organize patch 2 & 3 a bit for addressing Hannes's comment
- fix patch 4 for avoiding potential deadlock, as found by Hannes
V2:
- patch4 & patch 5 in V1 have been merged to block tree, so remove
them
- addres
.
