Public bug reported:
After updating intel-microcode from 3.20241112.0ubuntu0.20.04.1 to
3.20250211.0ubuntu0.20.04.1 in my Ubuntu Server 20.04.6 LTS the server
is stuck in a bootloop.
Sometimes I can see an error on console while booting, or sometimes it reboots
without completing bootup sequence, and is no more usable.
For what I have seen on console, it appears to be a kernel panic error coming
from "tg3" (broadcom Tigon3 Ethernet driver for NICs).
Now I succeeded in reverting to version 3.20241112.0ubuntu0.20.04.1 thanks to
recovery mode, and server is booting and stable again.
I put the package on hold to prevent upgrading.
Server is a Dell PowerEdge R740XD
Processor: 1x Intel(R) Xeon(R) Gold 6238R CPU @ 2.20GHz
NIC is the integrated, quad-port Broadcom NetXtreme Gigabit Ethernet (BCM5720)
with firmware 23.11.4
Ubuntu Version: 20.04.6 LTS
** Affects: intel-microcode (Ubuntu)
Importance: Undecided
Status: New
** Summary changed:
- Intel-microcode 3.20250211.0ubuntu0.20.04.1 causes panic during boot
+ Intel-microcode 3.20250211.0ubuntu0.20.04.1 causes panic and bootloop
** Description changed:
After updating intel-microcode from 3.20241112.0ubuntu0.20.04.1 to
3.20250211.0ubuntu0.20.04.1 in my Ubuntu Server 20.04.6 LTS the server
is stuck in a bootloop.
Sometimes I can see an error on console while booting, or sometimes it
reboots without completing bootup sequence, and is no more usable.
- For what I have seen on console, errors seem to come from "tg3" (broadcom
Tigon3 Ethernet driver for NICs).
+ For what I have seen on console, it appears to be a kernel panic error coming
from "tg3" (broadcom Tigon3 Ethernet driver for NICs).
Now I succeeded in reverting to version 3.20241112.0ubuntu0.20.04.1 thanks to
recovery mode, and server is booting and stable again.
I put the package on hold to prevent upgrading.
Server is a Dell PowerEdge R740XD
Processor: 1x Intel(R) Xeon(R) Gold 6238R CPU @ 2.20GHz
NIC is the integrated, quad-port Broadcom NetXtreme Gigabit Ethernet
(BCM5720) with firmware 23.11.4
Ubuntu Version: 20.04.6 LTS
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https://bugs.launchpad.net/bugs/2098777
Title:
Intel-microcode 3.20250211.0ubuntu0.20.04.1 causes panic and bootloop
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