On 25/12/2023 1:12, Heiner Kallweit wrote:
On 24.12.2023 17:30, Marc MERLIN wrote:
On Fri, Dec 15, 2023 at 09:46:34AM -0800, Marc MERLIN wrote:
On Fri, Dec 15, 2023 at 02:42:01PM +0100, Heiner Kallweit wrote:
Why don't you simply disable runtime pm for the affected device as a
workaround? This can be done via sysfs.
1) because I didn't know what the exact bug was and how to work around it :)
Mmmh, so I need to test an ubuntu kernel (6.5.0-14) because of sound
issues in mainline TOT, and I can't boot the kernel to completion
without hititng this hang bug. I'm not exactly sure which part of the
boot triggers it.
I can't patch that kernel easily. How exactly do I disable runtime PM
from the kernel command line for "that device" which I'm not even sure
Change <device>/power/control from "auto" to "on".
Need to figure out your controller location in a file system via
lspci/lspci -t and then change to "on"
For example: echo on >
/sys/devices/pci0000\:00/0000\:00\:1c.0/0000\:ae\:00.0/power/control
We are starting to look at this problem, but I can't reproduce the
problem on my machines yet.
which one it is. If it's the eth device, I already removed the igc
module to prevent it from loading, and I also removed the ethtool
binary, but I'm still getting the hang.
On the plus side, with 6.6.8 and the old patch which I understand is not
the ideal solution, I can confirm that I've been running problem free
until now, so thanks again for that interim patch.
Thanks,
Marc
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