[PATCH blktests 0/2] Test multipath and marginal ports

[John Meneghini]

On 8/17/26 03:38, Shin'ichiro Kawasaki wrote:
> Yes, it happnes always I run the test case. After I rebased to v7.2 kernel, it
> shows a bit different message:
> 
> nvme/070 (tr=fc) (test nvme-fc marginal path handling)       [failed]
>      runtime  37.200s  ...  38.926s
>      --- tests/nvme/070.out      2026-08-17 11:13:53.073000000 +0900
>      +++ /home/shin/Blktests/blktests/results/nodev_tr_fc/nvme/070.out.bad       2026-08-17 16:34:17.997000000 +0900
>      @@ -3,10 +3,14 @@
>       Testing iopolicy: numa
>       Changing FC links to online
>       Set all online: pass
>      -One host marginal: pass
>      +FC port on (/sys/class/nvme-subsystem/nvme-subsys6/nvme6) is being used, expected no use.
>      +One host marginal: fail
>       All marginal: pass
>      ...
>      (Run 'diff -u tests/nvme/070.out /home/shin/Blktests/blktests/results/nodev_tr_fc/nvme/070.out.bad' to see the entire diff)


I'm seeing this same issue on my QEMU based test bed.  This is a timing problem and the issue does not appear on a high CPU count system.

Jesse and I will work on a fix and update the patch series.

/John