linux-kernel - Re: 2.6.30-rc5: reiserfs is broken on parisc (bisected)

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Date:	Thu, 14 May 2009 15:04:13 +0400
From:	Alexander Beregalov <a.beregalov@...il.com>
To:	Jeff Mahoney <jeffm@...e.com>
Cc:	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Kernel Testers List <kernel-testers@...r.kernel.org>,
	linux-parisc@...r.kernel.org, Al Viro <viro@...iv.linux.org.uk>,
	reiserfs-devel@...r.kernel.org
Subject: Re: 2.6.30-rc5: reiserfs is broken on parisc (bisected)

2009/5/12 Jeff Mahoney <jeffm@...e.com>:
> -----BEGIN PGP SIGNED MESSAGE-----
> Hash: SHA1
>
> Alexander Beregalov wrote:
>> Hi
>>
>> ab17c4f02156c4f75d7fa43a5aa2a7f942d47201 is the first bad commit
>> (reiserfs: fixup xattr_root caching)
>>
>> Kernel panics when init tries to remount rootfs (reiserfs) with
>> read-write access.
>> Read-only access works fine.
>>
>> No more messages on the screen before panic.
>>
>> Is it endianess related?
>
> No, not at all. There was a problem with the xattr code if the kernel
> was built with xattrs disabled. It assumed that
> REISERFS_SB(s)->xattr_root would be available, which isn't the case when
> xattrs aren't enabled. Part of it has been cleaned up in -git1, and I've
> sent Al some additional patches to fix the rest of it up.
>
> There's a thread called "reiserfs xattr fixups" that contains 4 patches.
> The patch marked with * is the one I believe will fix your problem.
>
> - - reiserfs: cleanup ifdefs
> - - reiserfs: deal with NULL xattr root w/ xattrs disabled *
> - - reiserfs: fixup perms when xattrs are disabled
> - - reiserfs: allow exposing privroot w/ xattrs enabled
>
It works!
Thanks Jeff.
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