Hi Alex, On Wed, Apr 16, 2025 at 02:26:45PM -0600, Alex Williamson wrote: > On Tue, 15 Apr 2025 20:59:19 +0200 > Salvatore Bonaccorso <carnil@xxxxxxxxxx> wrote: > > > Hi > > > > [Apologies if this has been reported already but I have not found an > > already filled corresponding report] > > > > After updating from the 6.1.129 based version to 6.1.133, various > > users have reported that their VMs do not boot anymore up (both KVM > > and under Xen) if pci-passthrough is involved. The reports are at: > > > > https://bugs.debian.org/1102889 > > https://bugs.debian.org/1102914 > > https://bugs.debian.org/1103153 > > > > Milan Broz bisected the issues and found that the commit introducing > > the problems can be tracked down to backport of c8070b787519 ("mm: > > Don't pin ZERO_PAGE in pin_user_pages()") from 6.5-rc1 which got > > backported as 476c1dfefab8 ("mm: Don't pin ZERO_PAGE in > > pin_user_pages()") in 6.1.130. See https://bugs.debian.org/1102914#60 > > > > #regzbot introduced: 476c1dfefab8b98ae9c3e3ad283c2ac10d30c774 > > > > 476c1dfefab8b98ae9c3e3ad283c2ac10d30c774 is the first bad commit > > commit 476c1dfefab8b98ae9c3e3ad283c2ac10d30c774 > > Author: David Howells <dhowells@xxxxxxxxxx> > > Date: Fri May 26 22:41:40 2023 +0100 > > > > mm: Don't pin ZERO_PAGE in pin_user_pages() > > > > [ Upstream commit c8070b78751955e59b42457b974bea4a4fe00187 ] > > It's a bad backport, I've debugged and posted the fix for stable here: > > https://lore.kernel.org/all/20250416202441.3911142-1-alex.williamson@xxxxxxxxxx/ Thank you, that worked (replying here as well mainly to fix my mistake in the CC to stable@xxxxxxxxxxxxxxx, which got truncated to table@xxxxxxxxxxxxxxx in my initial submission). > > Thanks, > Alex > -- .-. Salvatore Bonaccorso --------------- Debian GNU/Linux Developer oo| ----------------------------------------- http://www.debian.org /`'\ GPG key ID: 0x789D6F057FD863FE -------------------------------- (\_;/) Fingerprint: 04A4 407C B914 2C23 030C 17AE 789D 6F05 7FD8 63FE
