DragonFly bugs List (threaded) for 2009-08
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Re: [issue1459] panic in msdosfs
On Fri, Aug 21, 2009 at 12:30:30AM +0000, Alexander Polakov (via DragonFly issue tracker) wrote:
>
> New submission from Alexander Polakov <polachok@gmail.com>:
>
> I get a panic while trying to read a file from msdos filesystem with latest
> master.
>
> http://omploader.org/vMjZzaw
Can you apply this patch, compile and reinstall the kernel, and
see how it it proceeds?
diff --git a/sys/kern/vfs_bio.c b/sys/kern/vfs_bio.c
index 8217817..3758510 100644
--- a/sys/kern/vfs_bio.c
+++ b/sys/kern/vfs_bio.c
@@ -887,7 +887,7 @@ breadn(struct vnode *vp, off_t loffset, int size, off_t *raoffset,
rabp = getblk(vp, *raoffset, *rabsize, 0, 0);
if ((rabp->b_flags & B_CACHE) == 0) {
- rel_mplock();
+ get_mplock();
rabp->b_flags &= ~(B_ERROR | B_EINTR | B_INVAL);
rabp->b_cmd = BUF_CMD_READ;
vfs_busy_pages(vp, rabp);
>
> ----------
> messages: 7104
> nosy: polachok
> status: unread
> title: panic in msdosfs
>
> _____________________________________________________
> DragonFly issue tracker <bugs@lists.dragonflybsd.org>
> <http://bugs.dragonflybsd.org/issue1459>
> _____________________________________________________
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