- 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
What is the HBA? If it is Hisilicon SAS, it isn't strange, because
this patch can't fix single hw queue with multiple private reply queue
yet, that can be one follow-up job of this patchset.
Yes, hisi_sas. So, right, it is single queue today on mainline, but I
manually made it multiqueue on my dev branch just to test this series.
Otherwise I could not test it for that driver.
My dev branch is here, if interested:
https://github.com/hisilicon/kernel-dev/commits/private-topic-sas-5.4-mq
I am also going to retest NVMe.
Thanks,
John
Thanks,
Ming
.
