4.19 kernels before 8.9 have filesystem corruption under memory pressure

[Charles Evans]

Bug 201685 - ext4 file system corruption
https://bugzilla.kernel.org/show_bug.cgi?id=201685
Quote:
Before running the bisect, I tested these kernels
(all Ubuntu mainline from http://kernel.ubuntu.com/~kernel-ppa/mainline/):
 Had FS corruption: 4.19-rc1 4.19 4.19.1 4.19.2 4.19.3 4.19.4 4.19.5 4.19.6
No corruption (yet): 4.18 4.18.20
/quote

Please release the latest security update for linux 4.18 to disco ASAP

[Ubuntu Kernel Bot (ubuntu-kernel-bot)]

This bug is missing log files that will aid in diagnosing the problem. While running an Ubuntu kernel (not a mainline or third-party kernel) please enter the following command in a terminal window:

apport-collect 1806755

and then change the status of the bug to 'Confirmed'.

If, due to the nature of the issue you have encountered, you are unable to run this command, please add a comment stating that fact and change the bug status to 'Confirmed'.

This change has been made by an automated script, maintained by the Ubuntu Kernel Team.

[Charles Evans (crtiger)]

I am still running cosmic, since no secure and functional
Kernel is out for disco at the moment.

[Charles Evans (crtiger)]

4.19.0-8.9 reports in the changelog that this is fixed.
When this version is released, this bug can be closed.

[Charles Evans (crtiger)]

New fixed kernel is out, 60 days later