kern/117421: System hang with failing SATA disk (SiI3114)

[Nate Eldredge]

The following reply was made to PR kern/117421; it has been noted by GNATS.

From: Nate Eldredge <neldredge at math.ucsd.edu>
To: Nate Eldredge <neldredge at math.ucsd.edu>
Cc: bug-followup at FreeBSD.org, neldredge at ucsd.edu
Subject: Re: kern/117421: System hang with failing SATA disk (SiI3114)
Date: Tue, 30 Oct 2007 18:07:05 -0700 (PDT)

 Tried some more things.  I added a bunch of printf statements in the ATA 
 code to try and see where it crashed.  It died in the *middle* of a printf 
 in ata_sii_reset (i.e. it only printed part of the message).  Then I added 
 some printfs to some of the interrupt handling functions (sata_interrupt, 
 sata_generic_intr, etc) and it didn't crash anymore.  So I guess that 
 something is timing dependent.
 
 Any ideas?
 
 -- 
 
 Nate Eldredge
 neldredge at math.ucsd.edu