* [bug] Conversion of ext4 filesystem to btrfs fails with error.
@ 2021-07-05 21:43 Chris Murphy
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From: Chris Murphy @ 2021-07-05 21:43 UTC (permalink / raw)
To: Btrfs BTRFS
Downstream Fedora Rawhide bug report
https://bugzilla.redhat.com/show_bug.cgi?id=1979179
This is kernel 5.13 series, and btrfs-progs 5.12.1. Looks like the
conversion segfaults. What I'm curious about is it seems like
fsck.ext4 shows enough space but btrfs-convert shows there maybe
isn't.
> 7705257 blocks used (58.79%, out of 13107200)
vs
> free: 578277376 (1.08%)
But regardless it shouldn't crash. The other curious thing is that
total bytes reported by convert is
> total: 53687091200
but the error before the segfault is:
>btrfs unable to find ref byte nr 54126084096 parent 0 root 2 owner 0 offset 0
Which I guess it can be a valid address if it's a logical one?
--
Chris Murphy
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2021-07-05 21:43 [bug] Conversion of ext4 filesystem to btrfs fails with error Chris Murphy
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