Re: [PATCH] MPSAFE/LOOKUP_SHARED cd9660

From: Paul B. Mahol <onemda_at_gmail.com>
Date: Wed, 10 Dec 2008 18:22:43 +0100
On 12/9/08, John Baldwin <jhb_at_freebsd.org> wrote:
> The RRIP stuff is all done in cd9660_vget_internal() under an exclusive
> lock.
> It could be a property of the ISO image.  "PX" holds permissions (owner,
> etc.).  Do you get the same messages w/o the patch with the same ISO image /
> CD?
>
> --
> John Baldwin
>

I searched little for this message and found  kern/63446 PR interesting comment:

	Caused by cd9660_vnops.c rev. 1.77. VOP_READDIR returns bogus
	d_fileno, VFS_VGET on this value returns bogus vnode with zeroed attributes.

I think that whatever locking is done is done wrong.

-- 
Paul
Received on Wed Dec 10 2008 - 16:22:45 UTC

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