On Sep 16, 2023 / 13:59, Zhu Yanjun wrote:
[...]
> On Debian, with the latest multipathd or revert the commit 9b4b7c1f9f54
> ("RDMA/rxe: Add workqueue support for rxe tasks"), this problem will
> disappear.
Zhu, thank you for the actions.
> On Fedora 38, if the commit 9b4b7c1f9f54 ("RDMA/rxe: Add workqueue support
> for rxe tasks") is reverted, will this problem still appear?
> I do not have such test environment. The commit is in the attachment,
> can anyone have a test? Please let us know the test result. Thanks.
I tried the latest kernel tag v6.6-rc2 with my Fedora 38 test systems. With the
v6.6-rc2 kernel, I still see the hang. I repeated the blktests test case srp/002
30 time or so, then the hang was recreated. Then I reverted the commit
9b4b7c1f9f54 from v6.6-rc2, and the hang disappeared. I repeated the blktests
test case 100 times, and did not see the hang.
I confirmed these results under two multipathd conditions: 1) with Fedora latest
device-mapper-multipath package v0.9.4, and 2) the latest multipath-tools v0.9.6
that I built from source code.
So, when the commit gets reverted, the hang disappears as I reported for
v6.5-rcX kernels.
