Hi list, We currently upgrade our servers from 4.14.13 to 4.14.26 And get some problems with random kernel oops by: [ 422.081094] BUG: unable to handle kernel NULL pointer dereference at 0000000000000038 [ 422.081254] IP: tcp_push+0x42/0x110 [ 422.081314] PGD 0 P4D 0 [ 422.081364] Oops: 0002 [#1] SMP PTI
Currently we assume that this caused by: net: tcp: close sock if net namespace is exiting [ Upstream commit 4ee806d51176ba7b8ff1efd81f271d7252e03a1d ] If that can helps we heavy use docker and ceph rbd. I will write if we get more info or fix that. Thanks. -- Have a nice day, Timofey.
