Am Montag, 8. Juni 2020, 17:28:53 CEST schrieb Chuck Lever: > > On Jun 7, 2020, at 1:44 PM, Hans-Peter Jansen <hpj@xxxxxxxxx> wrote: > > > > Am Sonntag, 7. Juni 2020, 18:01:55 CEST schrieb Anthony Joseph Messina: > >> On Sunday, June 7, 2020 10:32:44 AM CDT Hans-Peter Jansen wrote: > >>> Hi, > >>> > >>> after upgrading the kernel from 5.6.11 to 5.6.14, we suffer from regular > >>> crashes of nfsd here: > >>> > >>> 2020-06-07T01:32:43.600306+02:00 server rpc.mountd[2664]: authenticated > >>> mount request from 192.168.3.16:303 for /work (/work) > >>> 2020-06-07T01:32:43.602594+02:00 server rpc.mountd[2664]: authenticated > >>> mount request from 192.168.3.16:304 for /work/vmware (/work) > >>> 2020-06-07T01:32:43.602971+02:00 server rpc.mountd[2664]: authenticated > >>> mount request from 192.168.3.16:305 for /work/vSphere (/work) > >>> 2020-06-07T01:32:43.606276+02:00 server kernel: [51901.089211] general > >>> protection fault, probably for non-canonical address 0xb9159d506ba40000: > >>> 0000 [#1] SMP PTI 2020-06-07T01:32:43.606284+02:00 server kernel: > >>> [51901.089226] CPU: 1 PID: 3190 Comm: nfsd Tainted: G O > >>> 5.6.14-lp151.2-default #1 openSUSE Tumbleweed (unreleased) > >>> 2020-06-07T01:32:43.606286+02:00 server kernel: [51901.089234] Hardware > >>> name: System manufacturer System Product Name/P7F-E, BIOS 0906 > >> > >> I see similar issues in Fedora kernels 5.6.14 through 5.6.16 > >> https://bugzilla.redhat.com/show_bug.cgi?id=1839287 > >> > >> On the client I mount /home with sec=krb5p, and /mnt/koji with sec=krb5 > > > > Thanks for confirmation. > > > > Apart from the hassle with server reboots, this issue has some DOS > > potential, I'm afraid. > > If you have a reproducer (even a partial one) then bisecting between a > known good kernel and v5.6.14 (or 16) would be helpful. I would love to bisect, but this is my primary production machine, that needs to be up as much as possible. Apart from that, I'm about to leave the site for a week and been severely time constrained for the next couple of weeks.. Sorry. Anthony? -- Pete
