On 7/31/21 2:56 AM, gregkh@linuxfoundation.org wrote:
This is a note to let you know that I've just added the patch titled
Revert "ACPI: resources: Add checks for ACPI IRQ override"to the 5.13-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git%3Ba=su...
The filename of the patch is: revert-acpi-resources-add-checks-for-acpi-irq-override.patch and it can be found in the queue-5.13 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree, please let stable@vger.kernel.org know about it.
From e0eef3690dc66b3ecc6e0f1267f332403eb22bea Mon Sep 17 00:00:00 2001 From: Hui Wang hui.wang@canonical.com Date: Wed, 28 Jul 2021 23:19:58 +0800 Subject: Revert "ACPI: resources: Add checks for ACPI IRQ override"
From: Hui Wang hui.wang@canonical.com
commit e0eef3690dc66b3ecc6e0f1267f332403eb22bea upstream.
Confirming that this^ revert resolves the reported non-boot regression
System does boot cleanly; but, then REboots @ 60 seconds.
It's a known bug, with fix already in 5.13.9/stable:
Revert "watchdog: iTCO_wdt: Account for rebooting on second timeout" https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git/c...
, causing TCO watchdog auto-reboot @ 60 secs.
Although particularly nasty on servers with /boot on RAID, breaking arrays if watchdog boots before arrays correctly assembled, iiuc, it's UN-related
With interim workaround
edit /etc/modprobe.d/blacklist.conf
+ blacklist iTCO_wdt + blacklist iTCO_vendor_support
for this second issue in place, 5.13.8 boots & appears stable.