On Sun, 4 Feb 1996 12:14:19 -0500 (EST) 
 "John F. Woods" <jfw@jfwhome.funhouse.com> wrote:

 > I've seen a lot of mysterious problems since I recompiled on Jan. 31.
 > In addition to the "dk_busy < 0" panics (plural, I just got a second

[ Note: John mentioned to me earlier that it's his floppy drive that's
  triggering the dk_busy panic... --thorpej ]

Re. the dk_busy panics, it's *extremely* difficult for me to debug this.  
I only have access to one PC with a floppy drive, and it's on someone 
elses desk (their workstation...)  I'm unable to reproduce this on any of 
my SPARCs.

If you could help me track this down, I would really appreciate it.

 > I also got another fatal page fault while the system was trying to
 > panic from the second dk_busy crash; that time, the backtrace was just

Re. fatal page faults during panic ... I can't help but wonder of 
something is trying to operate on curproc while it's NULL.  Note that 
disk_unbusy() is typically called in an interrupt context.

--------------------------------------------------------------------------
Jason R. Thorpe                                       thorpej@nas.nasa.gov
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