[Bug 267913] Re: hda-intel: IRQ timing workaround is activated for card #0. Suggest a bigger bdl_pos_adj

[Ariel Faigon]

I would like to add information that may shed light on this.
I too started getting this warning in the log after the upgrade from hardy to intrepid

could it have something to do with changing the time on the system?

For example, if I run hwclock --systohc + adjtimexconfig, I see the
warning after a few seconds in the log. Here's the sequence:

Feb 22 01:07:45 myhost sudo:    username : TTY=pts/9 ; PWD=/home/username ; USER=root
; COMMAND=/sbin/hwclock --systohc
Feb 22 01:07:47 myhost sudo:    username : TTY=pts/9 ; PWD=/home/username ; USER=root
; COMMAND=/usr/sbin/adjtimexconfig
Feb 22 01:07:58 myhost kernel: [439231.900129] hda-intel: IRQ timing workaround is
activated for card #0. Suggest a bigger bdl_pos_adj.


This makes me suspect that changing the hardware clock, causes the hda-intel driver to wrongly conclude that something might be wrong and activate the presumably inferior "IRQ timing workaround". A pity.

-- 
hda-intel: IRQ timing workaround is activated for card #0. Suggest a bigger bdl_pos_adj
https://bugs.launchpad.net/bugs/267913
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