On Wed, 2006-08-02 at 06:50 +0200, Andi Kleen wrote:
> FYI,
>
> I tried to boot 2.6.18-rc2-mm1 on a nfsroot system with x86-64 defconfig.
>
> Unfortunately it seems to generate lots of random EIO while reading executables
> during the startup sequence, which causes some things to break. Writing
> also doesn't seem to work - it complains about EPERM for that.
> Not all executables error out, but at least some.
>
> The same setup works fine with mainline 2.6.18-rc*
Known issue. The attached patch ought to fix it...
Cheers,
Trond
--- Begin Message ---
- Subject: No Subject
- From: Trond Myklebust <[email protected]>
- Date: Thu, 03 Aug 2006 10:21:56 -0400
- Nfs: Ensure NFSv2/v3 mounts respect the NFS_MOUNT_SECFLAVOUR flag
Signed-off-by: Trond Myklebust <[email protected]>
---
fs/nfs/super.c | 5 +++--
1 files changed, 3 insertions(+), 2 deletions(-)
diff --git a/fs/nfs/super.c b/fs/nfs/super.c
index 867b5dc..d744f63 100644
--- a/fs/nfs/super.c
+++ b/fs/nfs/super.c
@@ -471,9 +471,10 @@ static int nfs_validate_mount_data(struc
data->version);
return -EINVAL;
}
- /* Fill in pseudoflavor for mount version < 5 */
- data->pseudoflavor = RPC_AUTH_UNIX;
case 5:
+ /* Set the pseudoflavor */
+ if (!(data->flags & NFS_MOUNT_SECFLAVOUR))
+ data->pseudoflavor = RPC_AUTH_UNIX;
memset(data->context, 0, sizeof(data->context));
}
--- End Message ---
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