After upgrading the kernel to 5.4.0-39-generic, the very same happened again. You could find more information here on LaunchPad https://bugs.launchpad.net/ubuntu/+source/linux-signed-hwe/+bug/1885265 Anyone else experienced this? This definitely looks like a bug to me at this point. On Thu, May 14, 2020 at 12:26 PM sea you <seayou@xxxxxxxxx> wrote: > > Hi all, > > Today we've seen a kernel panic that looks like related to delegations > and laundromat > > ... > [1388051.959652] Call Trace: > [1388051.959984] unhash_delegation_locked+0x39/0xa0 [nfsd] > [1388051.960631] laundromat_main+0x235/0x5a0 [nfsd] > [1388051.961234] process_one_work+0x1fd/0x3f0 > [1388051.961803] worker_thread+0x34/0x410 > [1388051.962281] kthread+0x121/0x140 > [1388051.962698] ? process_one_work+0x3f0/0x3f0 > [1388051.963210] ? kthread_park+0xb0/0xb0 > [1388051.963690] ret_from_fork+0x22/0x40 > .... > > In the link below you'll find what has been captured from the console. > > https://pastebin.com/raw/CdpMfUAK > > I couldn't really find any reference to this in the mailing list > history so I assume we might have hit a bug that is unknown so far. > > Best regards, > Doma
