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PR/46282 CVS commit: src/sys/fs/msdosfs
The following reply was made to PR kern/46282; it has been noted by GNATS.
From: "Juergen Hannken-Illjes" <hannken%netbsd.org@localhost>
Subject: PR/46282 CVS commit: src/sys/fs/msdosfs
Date: Mon, 9 Apr 2012 11:10:07 +0000
Module Name: src
Committed By: hannken
Date: Mon Apr 9 11:10:07 UTC 2012
pcbmap(): We cannot use bread() here as for the pagedaemon getblk()
may fail leading to a panic in bread().
Replace bread() with getblk() / VOP_STRATEGY() and return
an error if getblk() fails.
Fixes PR#46282: 6.0_BETA crash: msdosfs_bmap -> pcbmap -> bread -> bio_doread
This is an interim solution for easy pullup. The final solution
is be to change bread() to not return a buffer on error. As
we have to change all callers of bread() this will not qualify
for a pullup.
To generate a diff of this commit:
cvs rdiff -u -r1.19 -r1.20 src/sys/fs/msdosfs/msdosfs_fat.c
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
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