Re: regression: a0d4922 causes PCI host constroller problems

From: Simon Holm Thøgersen
Date: Fri Jan 16 2009 - 04:17:02 EST

fre, 16 01 2009 kl. 09:05 +0100, skrev Simon Holm ThÃgersen:
> commit a0d4922 ("USB: fix up suspend and resume for PCI host
> controllers") causes a lot of these two lines to be logged:
> uhci_hcd 0000:00:1d.2: host system error, PCI problems?
> uhci_hcd 0000:00:1d.2: host controller process error, something bad
> happened!
> Normally they appear on resume after suspend to disk, but sometimes I'm
> not even sure I had to suspend to disk to see them. Also, it seems like
> they don't trigger if X has not been started, or at least they are much
> less likely to.
> Reverting the patch restores normal operation.
> No USB devices were attached BTW.

So this one has already been reported [1]. There was some mentioning of
a patch to try out instead of reverting, but I couldn't find it.

Rafael, did you have something else to suggest or can we please get a
revert of this one upstream asap before too many are wasting their time
on this one?


Simon Holm ThÃgersen

To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at
Please read the FAQ at