Chris Murphy wrote on 2015/07/09 18:45 -0600:
On Thu, Jul 9, 2015 at 6:34 PM, Qu Wenruo <quwen...@cn.fujitsu.com> wrote:
One of my patch addressed a problem that a converted btrfs can't pass
btrfsck.
Not sure if that is the cause, but if you can try btrfs-progs v3.19.1, the
one without my btrfs-progs patches and some other newer convert related
patches, and see the result?
I think this would at least provide the base for bisect the btrfs-progs if
the bug is in btrfs-progs.
I'm happy to regression test with 3.19.1 but I'm confused. After
conversion, btrfs check (4.1) finds no problems. After ext2_saved
snapshot is deleted, btrfsck finds no problems. After defrag, again
btrfsck finds no problems. After the failed balance, btrfsck finds no
problems but crashes with "Aborted (core dump)".
Even btrfsck reports no error, some btrfs-convert behavior change may
lead to kernel mis-function.
But we are not sure it's btrfs-progs or kernel itself has bug.
Maybe btrfs convert did something wrong/different triggering the bug, or
just kernel regression?
So hat I'd like to check is, with 3.19.1 progs (kernel version doesn't
change), whether the kernel still failes to do balance.
If the problem still happens, then we can focus on kernel part, or at
least, put at least less effort on btrfs-progs.
Should I still test 3.19.1?
Yes, please.
Thanks,
Qu
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