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Created attachment 1517534 [details] NFS4 blocked processes Had a full system deadlock on what looks like NFS4 on kernel-4.19.10-300.fc29.x86_64. Find attached the stacktraces of all of the blocked processes. This has happened a number of times over the last few days.
Probably related, but near the same time, on the EL7.5 server running 3.10.0-862.14.4.el7.x86_64 I got a rash of these: 15:06:23 kernel RPC request reserved 84 but used 268 15:06:23 kernel RPC request reserved 84 but used 268 15:06:24 kernel RPC request reserved 84 but used 268 15:06:27 kernel RPC request reserved 84 but used 268 15:06:30 kernel RPC request reserved 84 but used 268 15:06:33 kernel RPC request reserved 84 but used 268 15:06:36 kernel RPC request reserved 84 but used 268 15:06:36 kernel RPC request reserved 84 but used 268 15:06:40 kernel RPC request reserved 84 but used 268 15:06:43 kernel RPC request reserved 84 but used 268 15:06:46 kernel RPC request reserved 84 but used 268 15:06:46 kernel RPC request reserved 84 but used 268 15:06:46 kernel RPC request reserved 84 but used 268 15:06:46 kernel RPC request reserved 84 but used 268 15:06:46 kernel RPC request reserved 84 but used 268
*********** MASS BUG UPDATE ************** We apologize for the inconvenience. There are a large number of bugs to go through and several of them have gone stale. Due to this, we are doing a mass bug update across all of the Fedora 29 kernel bugs. Fedora 29 has now been rebased to 4.20.5-200.fc29. Please test this kernel update (or newer) and let us know if you issue has been resolved or if it is still present with the newer kernel. If you experience different issues, please open a new bug report for those.
*********** MASS BUG UPDATE ************** This bug is being closed with INSUFFICIENT_DATA as there has not been a response in 3 weeks. If you are still experiencing this issue, please reopen and attach the relevant data from the latest kernel you are running and any data that might have been requested previously.