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[Libguestfs] virt-sparsify broken after recent changes



With 1.9.37 the following script worked fine, with 1.9.39 it fails.
Any idea what the issue is?

Olaf

...
mount -o  /dev/vda1 /sysroot/
[    1.396411] EXT4-fs (vda1): mounting ext2 file system using the ext4 subsystem
[    1.533090] EXT4-fs (vda1): mounted filesystem without journal. Opts: (null)
guestfsd: main_loop: proc 1 (mount) took 0.45 seconds
libguestfs: recv_from_daemon: 40 bytes: 20 00 f5 f5 | 00 00 00 04 | 00 00 00 01 | 00 00 00 01 | 00 12 34 08 | ...
Fill free space in /dev/vda1 with zero ...
libguestfs: send_to_daemon: 52 bytes: 00 00 00 30 | 20 00 f5 f5 | 00 00 00 04 | 00 00 01 37 | 00 00 00 00 | ...
guestfsd: main_loop: new request, len 0x30
random filename: /sysroot//ubhvwzh2.xu8
fsync /dev/vda
guestfsd: main_loop: proc 311 (zero_free_space) took 1.46 seconds
libguestfs: recv_from_daemon: 40 bytes: 20 00 f5 f5 | 00 00 00 04 | 00 00 01 37 | 00 00 00 01 | 00 12 34 09 | ...
libguestfs: send_to_daemon: 44 bytes: 00 00 00 28 | 20 00 f5 f5 | 00 00 00 04 | 00 00 00 2f | 00 00 00 00 | ...
guestfsd: main_loop: new request, len 0x28
umount /sysroot
guestfsd: main_loop: proc 47 (umount_all) took 0.01 seconds
libguestfs: recv_from_daemon: 40 bytes: 20 00 f5 f5 | 00 00 00 04 | 00 00 00 2f | 00 00 00 01 | 00 12 34 0a | ...
libguestfs: send_to_daemon: 44 bytes: 00 00 00 28 | 20 00 f5 f5 | 00 00 00 04 | 00 00 00 0a | 00 00 00 00 | ...
guestfsd: main_loop: new request, len 0x28
lvm vgs -o vg_name --noheadings
  No volume groups found
guestfsd: main_loop: proc 10 (vgs) took 0.01 seconds
libguestfs: recv_from_daemon: 44 bytes: 20 00 f5 f5 | 00 00 00 04 | 00 00 00 0a | 00 00 00 01 | 00 12 34 0b | ...
libguestfs: send_to_daemon: 44 bytes: 00 00 00 28 | 20 00 f5 f5 | 00 00 00 04 | 00 00 01 1a | 00 00 00 00 | ...
guestfsd: main_loop: new request, len 0x28
fsync /dev/vda
guestfsd: main_loop: proc 282 (internal_autosync) took 0.02 seconds
libguestfs: recv_from_daemon: 40 bytes: 20 00 f5 f5 | 00 00 00 04 | 00 00 01 1a | 00 00 00 01 | 00 12 34 0c | ...
libguestfs: sending SIGTERM to process 26256
libguestfs: closing guestfs handle 0x1e66470 (state 0)
Fatal error: exception Guestfs.Handle_closed("disk_format")
...



#!/bin/bash
set -x
img=disk.img
sprs=disk.sparse.img
kname=vda
test -f ${img} && exit 1
test -f ${sprs} && exit 1
find /usr/share/ -type f -print0 | xargs -0 cat | dd bs=$(( 1024 * 1024 )) count=$(( 42 )) iflag=fullblock of=${img}
ls -lhsS ${img}
time guestfish -v  <<_EOF_
add ${img}
run
part-disk /dev/${kname} mbr
blockdev-rereadpt /dev/${kname}
mkfs ext2 /dev/${kname}1
blockdev-rereadpt /dev/${kname}
mount /dev/${kname}1 /
mkdir /y
ls /
ls /y
umount /
sync
_EOF_
time virt-sparsify -v ${img} ${sprs}
ls -lhsS ${img} ${sprs}


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