Re: [regression 6.1.y] discard/TRIM through RAID10 blocking (was: Re: Bug#1104460: linux-image-6.1.0-34-powerpc64le: Discard broken) with RAID10: BUG: kernel tried to execute user page (0) - exploit attempt?

Am Wed, Apr 30, 2025 at 05:55:20PM +0200 schrieb Salvatore Bonaccorso:

Hi

We got a regression report in Debian after the update from 6.1.133 to 6.1.135. Melvin is reporting that discard/trimm trhough a RAID10 array stalls idefintively. The full report is inlined below and originates from https://bugs.debian.org/1104460 .

JFTR, we ran into the same problem with a few Wikimedia servers running 6.1.135 and RAID 10: The servers started to lock up once fstrim.service got started. Full oops messages are available at https://phabricator.wikimedia.org/P75746

Cheers, Moritz