Re: kern/46683: netbsd-6/amd64 cd0 hanging after burning

[Matthew Mondor <mm_lists%pulsar-zone.net@localhost>]

The following reply was made to PR kern/46683; it has been noted by GNATS.

From: Matthew Mondor <mm_lists%pulsar-zone.net@localhost>
To: gnats-bugs%NetBSD.org@localhost
Cc: 
Subject: Re: kern/46683: netbsd-6/amd64 cd0 hanging after burning
Date: Mon, 16 Jul 2012 06:45:34 -0400

 On Tue, 10 Jul 2012 11:55:00 +0000 (UTC)
 Matthew Mondor <mm_lists%pulsar-zone.net@localhost> wrote:
 
 > I forgot since the last time it occurred the WCHAN of the locked
 > growisofs process when it's stuck until the I/O error occurs.  I'll
 > post a followup with it the next time it occurs.
 
 The locking seems to have occurred again, and before it times out, the
 WCHAN appears to be biowait for a while:
 
 $ ps axl | grep growisofs
    0 15120 24723    0  95 -20   22352    1908 biowait D<+  ttyp6   0:03.44 
-reload 4 /dev/rcd0d 0 (growisofs)
    0 24723   417    0  85   0    9736    1036 wait    I+   ttyp6   0:00.00 
/usr/bin/time /usr/pkg/bin/growisofs -Z /dev/rcd0d -r -J -joliet-long cd/ 
 
 And eventually, in xscmd for a while:
 
    0 15120 24723    0  95 -20   22352    1912 xscmd   D<+  ttyp6   0:03.44 
-reload 4 /dev/rcd0d 0 (growisofs)
 
 Then as before, growisofs eventually exits reporting an I/O error after
 at least 10 minutes, but the device is unusable (and system unstable if
 trying to use it) until a reboot.
 -- 
 Matt