PR/40389 CVS commit: src/sys/ufs/ufs

[Antti Kantee <pooka%netbsd.org@localhost>]

The following reply was made to PR kern/40389; it has been noted by GNATS.

From: Antti Kantee <pooka%netbsd.org@localhost>
To: gnats-bugs%gnats.NetBSD.org@localhost
Cc: 
Subject: PR/40389 CVS commit: src/sys/ufs/ufs
Date: Wed,  4 Feb 2009 21:07:19 +0000 (UTC)

 Module Name:   src
 Committed By:  pooka
 Date:          Wed Feb  4 21:07:19 UTC 2009
 
 Modified Files:
        src/sys/ufs/ufs: ufs_inode.c
 
 Log Message:
 Break hold-and-wait which happens in ufs_balloc_range() when we
 have pages busied and are trying to get the genfs node lock.
 This causes a lock order reversal described in PR kern/40389.
 This is not a proper fix and only a workaround for NetBSD 5.0.
 
 problem first reported by simonb, patch tested by rmind
 
 
 To generate a diff of this commit:
 cvs rdiff -r1.76 -r1.77 src/sys/ufs/ufs/ufs_inode.c
 
 Please note that diffs are not public domain; they are subject to the
 copyright notices on the relevant files.