*** This bug is a duplicate of bug 1849178 ***
https://bugs.launchpad.net/bugs/1849178
** This bug has been marked a duplicate of bug 1849178
upgrading linux-image package to 4.15.0-66.75 breaks Ceph network file
system clients
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https://bugs.launchpad.net/bugs/1849488
Title:
kernel panics (when using CephFS) due to backported patch in bionic
4.15 (-66) kernel
Status in linux package in Ubuntu:
Confirmed
Bug description:
This issue results in kernel panics for anyone who uses CephFS.
After some digging we suspect this patch to be cause of the kernel
panics:
https://kernel.ubuntu.com/git/kernel-ppa/mirror/ubuntu-
bionic.git/commit/?id=eb0ba4bdcf12d9c29b9d3318627ad9ff3aff5471
This patch same patch was applied upstream (4.19) and reverted:
https://lkml.org/lkml/2019/10/3/862
Quoting: "The backport was incorrect and was causing kernel panics. Revert and
re-apply a correct backport from Jeff Layton."
Also relevant:
https://www.mail-archive.com/[email protected]/msg56549.html
Which basically states this patch should not have been applied to 4.15
at all (not intended for pre-5.2)
Would be great if you guys could revert the patch.
We are stuck on previous kernel versions until this issue is fixed.
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