On Thu, 2018-12-06 at 08:47 -0800, Bart Van Assche wrote: +AD4 If I merge Jens' for-next branch with Linus' master branch, boot the +AD4 resulting kernel in a VM and run blktests/tests/srp/002 then that test +AD4 never finishes. The same test passes against Linus' master branch. I +AD4 think this is a regression. The following appears in the system log if +AD4 I run that test: +AD4 +AD4 Call Trace: +AD4 INFO: task kworker/0:1:12 blocked for more than 120 seconds. +AD4 Call Trace: +AD4 INFO: task ext4lazyinit:2079 blocked for more than 120 seconds. +AD4 Call Trace: +AD4 INFO: task fio:2151 blocked for more than 120 seconds. +AD4 Call Trace: +AD4 INFO: task fio:2154 blocked for more than 120 seconds. Hi Jens, My test results so far are as follows: +ACo With kernel v4.20-rc5 test srp/002 passes. +ACo With your for-next branch test srp/002 reports the symptoms reported in my e-mail. +ACo With Linus' master branch from this morning test srp/002 fails in the same way as your for-next branch. +ACo Also with Linus' master branch, test srp/002 passes if I revert the following commit: ffe81d45322c (+ACI-blk-mq: fix corruption with direct issue+ACI). So it seems like that commit fixed one regression but introduced another regression. Bart.
