Re: kern/39993

[Julian Coleman <jdc%coris.org.uk@localhost>]

The following reply was made to PR kern/39993; it has been noted by GNATS.

From: Julian Coleman <jdc%coris.org.uk@localhost>
To: gnats-bugs%NetBSD.org@localhost
Cc: 
Subject: Re: kern/39993
Date: Thu, 19 Feb 2009 21:42:29 +0000

 Hi,
 
 >  Just some guessing: it appears that bdev_strategy() can block and
 >  we can call it with the queue spinlock held.  Maybe this will make the
 >  trouble go away?
 >  (not blessed by Greg, so test at your own risk ;)
 
 Summary: I have a Sun E420r (4 CPU, esiop SCSI) that always locked up when
 trying reconstruction (raidctl -R /dev/sd1a raid0) although parity rewrites
 were fine.  It never made it to the end of the reconstruction and usually
 locked up within the first 10 seconds.
 
 With this patch, it runs all the way through the reconstruction.  It would
 be good to get this in and also pulled up to netbsd-5.
 
 Thanks,
 
 J
 
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