Re: Firewire

[Ben Collins <bcollins@debian.org>]

On Thu, Jul 24, 2003 at 06:27:24PM -0700, Chris Ruvolo wrote:
> On Thu, Jul 24, 2003 at 06:13:37PM -0700, Torrey Hoffman wrote:
> > Sometimes the driver seems to go into an loop of "unsolicted packet
> > received" messages and attempted resets.  Here's what the log looks like
> > when that happens:  (this was on 2.5.75)
> [..]
> > (this sequence repeats until I turn off or unplug the drive.)
> 
> This sounds like what happens to me when I turn on my DV cam.  CPU usage
> goes up to 40% kernel and loops like that until the device goes off.
> 
> What hardware do you have?  lspci?
> 
> Marcello's latest 2.4.22-pre8 updates to rev 1010 of the 1394 modules, so
> I'm curious if I can reproduce this in 2.4 now.

Could both you guys try this workaround? Should prove or disprove my
theory.

Index: linux-2.6/drivers/ieee1394/ohci1394.c
===================================================================
--- linux-2.6/drivers/ieee1394/ohci1394.c	(revision 1013)
+++ linux-2.6/drivers/ieee1394/ohci1394.c	(working copy)
@@ -2366,7 +2366,7 @@
 			ohci1394_stop_context(ohci, d->ctrlClear,
 					      "respTxComplete");
 		else
-			tasklet_schedule(&d->task);
+			dma_trm_tasklet ((unsigned long)d);
 		event &= ~OHCI1394_respTxComplete;
 	}
 	if (event & OHCI1394_RQPkt) {

-- 
Debian     - http://www.debian.org/
Linux 1394 - http://www.linux1394.org/
Subversion - http://subversion.tigris.org/