Re: [PATCH] fstests: generic/062: avoid warning from polluting the golden output

Please discard this one.

Avinesh has already submitted a better solution doing the runtime check.

Thanks,
Qu

在 2026/7/7 18:29, Qu Wenruo 写道:
> [FAILURE]
> With the latest setfattr (provided by attr 2.6.0), the test case
> generic/062 will fail like the following:
> 
>   FSTYP         -- btrfs
>   PLATFORM      -- Linux/aarch64 btrfs-aarch64 7.2.0-rc1-custom-64k+ #22 SMP PREEMPT_DYNAMIC Tue Jul  7 16:05:57 ACST 2026
>   MKFS_OPTIONS  -- -O bgt -K /dev/mapper/test-scratch1
>   MOUNT_OPTIONS -- /dev/mapper/test-scratch1 /mnt/scratch
> 
>   generic/062  1s ... - output mismatch (see /home/adam/xfstests-dev/results//generic/062.out.bad)
>       --- tests/generic/062.out	2024-04-25 18:13:45.101553098 +0930
>       +++ /home/adam/xfstests-dev/results//generic/062.out.bad	2026-07-07 18:22:12.384539920 +0930
>       @@ -649,6 +649,7 @@
>        SCRATCH_MNT/lnk
>        SCRATCH_MNT/reg
>        *** restore everything
>       +Warning: option --restore=file is unsafe without option -P (--physical) as it traverses symbolic links in pathnames
>        *** compare before and after backups
> 
>        *** unmount
>       ...
>       (Run 'diff -u /home/adam/xfstests-dev/tests/generic/062.out /home/adam/xfstests-dev/results//generic/062.out.bad'  to see the entire diff)
>   Ran: generic/062
>   Failures: generic/062
>   Failed 1 of 1 tests
> 
> [CAUSE]
> That output is a warning from the latest attr, introduced by attr commit
> 3fb06b9ba314 ("harden setfattr --restore").
> 
> There is also a compile time flag to toggle that warning.
> 
> [FIX]
> Since we have no way to know if the setfattr command from the running
> environment has that hardening or not, and the way to disable that
> warning is to use "-P" option, which does not exist in older versions,
> just redirect the stdout into seqres.full to avoid pollution.
> 
> Signed-off-by: Qu Wenruo <[email protected]>
> ---
>   tests/generic/062 | 4 +++-
>   1 file changed, 3 insertions(+), 1 deletion(-)
> 
> diff --git a/tests/generic/062 b/tests/generic/062
> index 896590403fda..faeb9650c608 100755
> --- a/tests/generic/062
> +++ b/tests/generic/062
> @@ -186,7 +186,9 @@ _create_test_bed
>   _extend_test_bed
>   
>   echo "*** restore everything"
> -setfattr -h --restore=$tmp.backup1
> +# For attr 2.6.0, --restore= without -P will output a warning.
> +# Redirect it to avoid polluting the golden output.
> +setfattr -h --restore=$tmp.backup1 >> $seqres.full
>   _backup $tmp.backup2
>   
>   echo "AFTER RESTORE" >>$seqres.full