kern/118093: firewire bus reset hogs CPU, causing data to be lost

[Dieter]

The following reply was made to PR kern/118093; it has been noted by GNATS.

From: Dieter <freebsd at sopwith.solgatos.com>
To: freebsd-firewire at freebsd.org, bug-followup at freebsd.org
Cc:  
Subject: Re: kern/118093: firewire bus reset hogs CPU, causing data to be lost 
Date: Sun, 28 Dec 2008 23:30:55 +0000

 > > I'll rephrase my question.  In the old days, locking was done with spl.
 > > The new way is with mutex.  But with the spl calls being replaced with
 > > noops, and as far as I can tell the driver is not using mutex, there
 > > doesn't appear to be any locking.  So the driver can step on itself.
 > 
 > 
 > Well, there is locking around a couple of mutex's via FW_GLOCK().
 
 Ah, I wasn't grepping for the right string.  So there *is* mutex
 locking.  Although the lingering spl calls are still troubling.