(cc stable@xxxxxxxxxx and the ia64 d00ds)
On Mon, 23 Aug 2010 16:15:20 +0200
Jan Sembera <jsembera@xxxxxxx> wrote:
> Commit 74641f584da introduced a regression - binfmt_misc is now consulted
> after binfmt_elf, which will unfortunately break ia32el. ia32 ELF binaries
> on ia64 used to be matched using binfmt_misc and executed using wrapper. As
> 32bit binaries are now matched by binfmt_elf before bindmt_misc kicks in,
> the wrapper is ignored.
>
> The fix increases precedence of binfmt_misc to the original state.
>
> Signed-off-by: Jan Sembera <jsembera@xxxxxxx>
> ---
> fs/binfmt_misc.c | 2 +-
> 1 files changed, 1 insertions(+), 1 deletions(-)
>
> diff --git a/fs/binfmt_misc.c b/fs/binfmt_misc.c
> index a7528b9..fd0cc0b 100644
> --- a/fs/binfmt_misc.c
> +++ b/fs/binfmt_misc.c
> @@ -724,7 +724,7 @@ static int __init init_misc_binfmt(void)
> {
> int err = register_filesystem(&bm_fs_type);
> if (!err) {
> - err = register_binfmt(&misc_format);
> + err = insert_binfmt(&misc_format);
> if (err)
> unregister_filesystem(&bm_fs_type);
> }
Yikes, 74641f584da was merged in May 2009. I wonder why this problem
wasn't noticed before now?
If we're going to change this then I guess we should change it in
2.6.36 and backport the fix as far as we can go.
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