On Tue, Feb 14, 2017 at 9:23 AM, Eryu Guan <eguan@xxxxxxxxxx> wrote: > On Tue, Feb 14, 2017 at 08:02:27AM +0200, Amir Goldstein wrote: > [snip] >> >> >> My test configs look like: >> >> >> >> >> >> TEST_DEV=/dev/sda5 >> >> >> SCRATCH_DEV=/dev/sda6 >> >> >> TEST_DIR=/mnt/testarea/test >> >> >> SCRATCH_MNT=/mnt/testarea/scratch >> >> >> >> >> >> and if I mount SCRATCH_DEV at /mnt/xfs (or some other mountpoints rather >> >> >> than SCRATCH_MNT), ./check -overlay overlay/??? isn't able to detect >> >> >> this mis-configuration. >> >> >> >> >> >> [root@dhcp-66-86-11 xfstests]# ./check -overlay overlay/002 >> >> >> FSTYP -- overlay >> >> >> PLATFORM -- Linux/x86_64 dhcp-66-86-11 4.10.0-rc7 >> >> >> MKFS_OPTIONS -- /mnt/testarea/scratch >> >> >> MOUNT_OPTIONS -- -o context=system_u:object_r:nfs_t:s0 -o lowerdir=/mnt/testarea/scratch/ovl-lower,upperdir=/mnt/testarea/scratch/ovl-upper,workdir=/mnt/testarea/scratch/ovl-work >> >> >> >> >> >> [root@dhcp-66-86-11 xfstests]# >> >> >> >> >> >> And nothing useful was printed. This is because my rootfs has no >> >> >> filetype support, but the _notrun message is redirected to a file in >> >> >> check, as >> >> >> >> >> >> "if ! _scratch_mkfs >$tmp.err 2>&1" >> >> >> >> >> >> Adding _check_mounted_on against OVL_BASE_TEST/SCRATCH_DEV here could >> >> >> fix it for me. >> >> >> >> >> > >> >> > Actually, there that test already exists in: >> >> > >> >> > _scratch_mkfs >> >> > _scratch_cleanup_files >> >> > _overlay_base_scratch_mount >> >> > _check_mounted_on >> > >> > Hmm, I don't think this kind of basic config sanity check belongs here, >> > this should be done in config and env setup time. (So I think >> > _overlay_mount should be fixed too, that _supports_filetype check >> > doesn't belong there either.) >> > >> > How about adding these checks in init_rc, along with other >> > _check_mounted_on checks against TEST_DEV and SCRATCH_DEV? >> > >> >> Yes, that makes sense. >> >> But I still wonder how "exit 1" from within helpers should be handled >> from check when stdout/err are redirected to $tmp.err. >> Trying to catch the config error earlier is a good practice, but >> it won't ensure against the same type of problem in the future. >> >> What did you think about my approach to store mkfs output in $check_err >> var instead of $tmp.err file and spew $check_err in _wrapup? >> BTW I tries 'cat $tmp.err' in _wrapup, but output is still redirected to >> $tmp.err while in trap, so cat says: "cat: input file is output file". > > I don't think we need to worry about that or handle it. IMO, if we > redirect a helper that does "exit", we're doing something wrong, so > either fix the redirection or fix the helper (just return not exit). > > I went through helpers in common/rc roughly, except the _overlay_mount > issue, seems we don't have other such problems right now :) > OK. less work for me :) I'll just fix the helper then. -- To unsubscribe from this list: send the line "unsubscribe linux-unionfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
