On Tue, Jun 18, 2024 at 04:29:55PM +0200, Harald Dunkel wrote: > On 2024-06-17 21:20:54, Calum Mackay wrote: > > > > Harald: do you have a Debian/Ubuntu kernel version that doesn't see the > > issue, please? i.e. ideally from the same 6.1.y series… > > > > I had migrated the Server from Debian 11 to Debian 12 on Dec 11th 2023. > The kernel version provided by Debian 11 at that time was 5.10.197. I > can't remember having seen a frozen nfsd with this version. > > Since Dec 11th I had these kernels in use (all provided by Debian): > > 6.1.66 linux-image-6.1.0-15-amd64 > 6.1.69 linux-image-6.1.0-17-amd64 > 6.1.76 linux-image-6.1.0-18-amd64 > 6.1.85 linux-image-6.1.0-20-amd64 > 6.1.90 linux-image-6.1.0-21-amd64 > > These are all "upstream" version numbers. The second column lists > Debian's package names. > > AFAIR nfsd got stuck only on the 6.1.90 kernel (installed and booted > on May 18th, first time freeze on May 26th). But I've got a weak > memory in cases like this. I haven't found older kernel log files. > > Please remember that I have seen a frozen nfsd only 3 times since > May 26th. Its not easy to reproduce. I can find no NFSD or SUNRPC changes between v6.1.85 and v6.1.90. Between v6.1.76 and v6.1.85, there are 48 NFSD changes, 8 changes to fs/nfs/, and 3 changes to net/sunrpc/. Are there any NFS client changes during the second half of May that correlate with the NFSD misbehavior? -- Chuck Lever