On Tue, Jun 07, 2005 at 11:13:29PM +0300, wrote:
> On Wed, Jun 01, 2005 at 02:02:52PM +0200, Luc Saillard wrote:
> > Can you try 2.6.12-rc5 like Andrew Morton asks ?
>
> Yep, the problem is there in 2.6.12-rc5 also with pwc v10.0.7a.
> In the 2.6.11.11 the problem is somewhat easier.
>
> I think it may be a bug in pwc driver after all. See the latest in
> < http://bugzilla.kernel.org/show_bug.cgi?id=4510 >
>
> How come switching to runlevel 3 fixes the pwc driver problem at least
> "partly", meaning I can restart pwc-driver and video device?
>
Because i don't know what runlevel3 do on a fedora system. If you want to be
sure (and i don't understand your bug report in bugzilla) that no other
application is running, use at start init=/bin/sh, then mount all your
filesystem, load pwc module, and launch your application that grab some
video. But if the problem is in ps2+usb, i can't help. pwc is special because
it's use some isochronous message on the usb bus. But any webcam uses
this, so try to switch to another webcam ? If i fully understand, you lost
some (too many) urb (packets), and the usb stack can't recover from error.
Perhaps you PCI bus, usb (because you use bluetooth key, ...) use too much
cpu times to transfer data in continous. If the kernel x.y.z works, try to
narrow down the bug to test every kernel until this bug is not working. Try
each -rc, and bk to find the patch that have break the usb stack or the ps2
stack .... I don't have your computer, so i can't do the test for you.
Sorry for being to answer this,
Luc
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