After some experimentation, I found that if you use "irqpoll" in the
Grub command line, you'll end up with buffer underrun errors on a
Lenovo/IBM ThinkPad T61.
Substitute this:
GRUB_CMDLINE_LINUX="irqpoll"
With this:
GRUB_CMDLINE_LINUX="noirqdebug"
[original post below:]
To: debian-user@lists.debian.org
Subject: How To Fix: Firewire IRQ Errors on Reboot
From: RavenLX <rave...@sitesplace.net>
Date: Wed, 7 Jun 2017 09:25:52 -0400
Message-id: <[?] 5abcce6c-1786-f85c-5ffe-4f9821aac...@sitesplace.net>
I would like to share another discovery. This one fixed my firewire IRQ
errors when rebooting my ThinkPad T61.
(Not-So-Obligatory) Disclaimer:
-------------------------------
While, I do not notice any change in overall functionality of the laptop
as a result of this fix, I also do not know what the referenced setting
is really used for. Do this at your own risk! I hold no responsibility
for the outcome!
System:
-------
IBM/Lenovo ThinkPad T61 Laptop
* This may (or may not) work on other ThinkPad Laptops.
Debian 9 (Stretch) RC4
4.9.0-3-amd64 #1 SMP Debian 4.9.25-1 (2017-05-02)
Problem Description:
--------------------
I came across the following errors whenever rebooting:
irq 17: nobody cared (try booting with the "irqpoll" option
handlers:
[<fffffffc01b8c10] irq_handler [firewire_ohci]
[<fffffffc0074040] usb_hcd_irq [usbcore]
Disabling IRQ #17
How To Fix:
-----------
Edit as root: /etc/default/grub
Change:
GRUB_CMDLINE_LINUX=""
To:
GRUB_CMDLINE_LINUX="irqpoll"
NOTE: If you have another option in the command line, then use spaces to
separate each option. Example:
GRUB_CMDLINE_LINUX="[option1] irqpoll"
$ sudo update-grub
(NOTE: The 2nd reboot should show no more errors.)
