On Fri, 2023-09-22 at 17:00 -0400, Olga Kornievskaia wrote: > On Fri, Sep 22, 2023 at 3:05 PM Trond Myklebust > > > > Oh crap... Yes, that is a bug. Can you please apply the attached > > patch > > on top of the original, and see if that fixes the problem? > > I can't consistently reproduce the problem. Out of several xfstests > runs a couple got stuck in that state. So when I apply that patch and > run, I can't tell if i'm no longer hitting or if I'm just not hitting > the right condition. > > Given I don't exactly know what's caused it I'm trying to find > something I can hit consistently. Any ideas? I mean this stack trace > seems to imply a recovery open but I'm not doing any server reboots > or > connection drops. > > > If I'm right about the root cause, then just turning off delegations on the server, setting up a NFS swap partition and then running some ordinary file open/close workload against the exact same server would probably suffice to trigger your stack trace 100% reliably. I'll see if I can find time to test it over the weekend. -- Trond Myklebust Linux NFS client maintainer, Hammerspace trond.myklebust@xxxxxxxxxxxxxxx
