Linux Kernel bug 19.2.1 squid #876
Description
We were running rook ceph on Ubuntu 20.04 kernel version 5.4 this is on our k8s cluster, however, see further along this seems to be a issue with cephfs not rook
Because upon updating to Ubuntu 22.04, kernel version 5.15.0-136 we started getting errors causing reboots
kernel: BUG: kernel NULL pointer dereference, address: 0000000000000402
kernel: #PF: supervisor read access in kernel mode
kernel: #PF: error_code(0x0000) - not-present page
Looking around we found the following posts all pointing the page fault at ceph
https://forum.proxmox.com/threads/bug-kernel-null-pointer-dereference-address-0000000000000402.106067/
https://access.redhat.com/solutions/6993035
https://lkml.iu.edu/2205.0/04018.html
so we updated to
5.15.178-0515178-generic
However, the crashes are still occurring.
Any advice is appreciated