Re: 5.2 stable panic on i386

[Manuel Bouyer <bouyer%antioche.eu.org@localhost>]

On Fri, Jul 26, 2013 at 07:56:27PM -0700, Andy Ruhl wrote:
> I have an i386 machine I use as a server for a media system. I access the
> storage through samba, and I manage some of the disk space with vnd. One
> particular vnd backed filesystem is read-only. That is, the vnd disk is
> configured with vnconfig -r, and it's mounted in a readwrite samba share.
> 
> I never had a problem until I browsed it with my new Mac, and it panics. I
> can consistenly recreate the panic. The machine doesn't write a dump file
> to /var/crash for whatever reason, but I copied a few of the tracebacks:
> 
> Here's one (hand copied, sorry for typos):
> 
> Stopped in pid 591.1 smbd at netbsd:breakpoint+0x4: popl %ebp
> 
> breakpoint
> panic
> ffs_blkfree
> ffs_realloccg
> ffs_balloc
> ufs_gop_alloc
> ufs_balloc_range
> ffs_write
> VOP_WRITE
> vn_write
> dofilewrite
> sys_pwrite
> syscall
> 
> Here's another:
> 
> breakpoint
> panic
> ffs_blkfree
> ffs_truncate
> ufs_setattr
> VOP_SETATTR
> sys_ftruncate
> syscall
> 
> (I might be able to copy all details or run some ddb commands if needed. It
> would be better if I had a dump file.)
> 
> I guess write or setattr shouldn't be allowed in this case, and there
> should be some error passed back.

is the filesystem mounted read-write, or read-only ?

-- 
Manuel Bouyer <bouyer%antioche.eu.org@localhost>
     NetBSD: 26 ans d'experience feront toujours la difference
--