Observing Softlockup's while running heavy IOs

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]


On 08/17/16 22:55, Sreekanth Reddy wrote:
> Observing softlockups while running heavy IOs on 8 SSD drives
> connected behind our LSI SAS 3004 HBA.

Hello Sreekanth,

This means that more than 23s was spent before the scheduler was 
invoked, probably due to a loop. Can you give the attached (untested) 
patch a try to see whether it is the loop in __blk_mq_run_hw_queue()?



-------------- next part --------------
A non-text attachment was scrubbed...
Name: 0001-block-Measure-__blk_mq_run_hw_queue-execution-time.patch
Type: text/x-patch
Size: 1132 bytes
Desc: 0001-block-Measure-__blk_mq_run_hw_queue-execution-time.patch
URL: <http://lists.infradead.org/pipermail/irqbalance/attachments/20160818/2a0ee0c3/attachment.bin>

[Index of Archives]     [Linux Samsung SoC]     [Linux Rockchip SoC]     [Linux Actions SoC]     [Linux for Synopsys ARC Processors]     [Linux NFS]     [Linux NILFS]     [Linux USB Devel]     [Video for Linux]     [Linux Audio Users]     [Yosemite News]     [Linux Kernel]     [Linux SCSI]

  Powered by Linux