Commit Graph

1 Commits

Author SHA1 Message Date
Thomas Lamprecht
453933b504 backport fix for AMX register breakage
vmexit's can cause the AMX registers to "misbehave" which can break
ZFS, even though ZFS doesn't use AMX at all.

This causes crashes and processes hanging forever in uninterruptible
sleep (the infamous D state) on Intel Xeon 4th gen HW, possible other
HW too, but we only got reports on Sapphire Rapids models.

Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
Tested-by: Aaron Lauterer <a.lauterer@proxmox.com>
(cherry picked from commit 9e8946d4b9)
Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
2023-12-01 13:41:18 +01:00