Affecting me as well. Running 22.04.5 and 6.8.0-48-generic The common factor seems to be heavy file i/o over a 10gbps link. Didn't encounter this on 20.04, before the upgrade.
[575448.138621] INFO: task nfsd:1760 blocked for more than 245 seconds. [575448.138623] Not tainted 6.8.0-48-generic #48~22.04.1-Ubuntu [575448.138626] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [575448.138627] task:nfsd state:D stack:0 pid:1760 tgid:1760 ppid:2 flags:0x00004000 [575448.138631] Call Trace: [575448.138632] <TASK> [575448.138634] __schedule+0x27c/0x6a0 [575448.138641] schedule+0x33/0x110 [575448.138645] schedule_preempt_disabled+0x15/0x30 [575448.138648] rwsem_down_write_slowpath+0x2a2/0x550 [575448.138651] ? __pfx_nfsd_acceptable+0x10/0x10 [nfsd] [575448.138676] ? srso_alias_return_thunk+0x5/0xfbef5 [575448.138680] ? rcu_nocb_try_bypass+0x5f/0x540 [575448.138682] ? aa_file_perm+0x147/0x2f0 [575448.138685] down_write+0x5c/0x80 [575448.138687] ext4_buffered_write_iter+0x39/0x130 [575448.138690] ext4_file_write_iter+0x4c/0x80 [575448.138693] do_iter_readv_writev+0x14c/0x1d0 [575448.138696] vfs_iter_write+0xbc/0x230 [575448.138699] nfsd_vfs_write+0x1b7/0x5e0 [nfsd] [575448.138722] nfsd4_write+0x14e/0x1e0 [nfsd] [575448.138744] nfsd4_proc_compound+0x3bc/0x780 [nfsd] [575448.138764] nfsd_dispatch+0x106/0x220 [nfsd] [575448.138786] svc_process_common+0x309/0x730 [sunrpc] [575448.138812] ? __pfx_nfsd_dispatch+0x10/0x10 [nfsd] [575448.138832] svc_process+0x132/0x1b0 [sunrpc] [575448.138856] svc_handle_xprt+0x4d3/0x5d0 [sunrpc] [575448.138882] svc_recv+0x18b/0x2e0 [sunrpc] [575448.138905] ? __pfx_nfsd+0x10/0x10 [nfsd] [575448.138932] nfsd+0x8b/0xf0 [nfsd] [575448.138951] kthread+0xf2/0x120 [575448.138953] ? __pfx_kthread+0x10/0x10 [575448.138956] ret_from_fork+0x47/0x70 [575448.138958] ? __pfx_kthread+0x10/0x10 [575448.138960] ret_from_fork_asm+0x1b/0x30 [575448.138964] </TASK> -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2062568 Title: nfsd gets unresponsive after some hours of operation To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2062568/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
