On Mon, Oct 21, 2019 at 5:09 PM Ranjan Ghosh <ghosh@pw6.de> wrote:
Hi all,
it seems Ceph on Ubuntu Disco (19.04) with the most recent kernel 5.0.0-32 is instable. It crashes sometimes after a few hours, sometimes even after a few minutes. I found this bug here on CoreOS:
https://github.com/coreos/bugs/issues/2616
Which is exactly also the error message I get ("cache_from_obj: Wrong slab cache. inode_cache but object is from ceph_inode_info") and the problem seems fairly recent.
The problem vanished immediately after downgrading the kernel again.
Hi Ranjan, Which kernel did you downgrade to? Looking at the changelog, disco's 5.0.0-32 kernel has the botched backport mentioned in the coreos issue you linked to. Downgrading to 5.0.0-31 should help, until disco picks up the fix (either just the revert or the revert plus the new backport). Revert "ceph: use ceph_evict_inode to cleanup inode's resource" ceph: use ceph_evict_inode to cleanup inode's resource Thanks, Ilya