Hi Hugo,
just for your information. I run following command on the backup file:
# btrfs rescue chunk-recover -v /dev/sde1
All Devices:
Device: id = 1, name = /dev/sde1
Scanning: 575601561600 in dev0chunk-recover.c:129: process_extent_buffer: BUG_ON `exist->nmirrors >= BTRFS_MAX_MIRRORS` triggered, value 1
btrfs(+0x6d3b6)[0x56428c4f03b6]
btrfs(+0x6de31)[0x56428c4f0e31]
/lib64/libpthread.so.0(+0x7569)[0x7f351bee9569]
/lib64/libc.so.6(clone+0x3f)[0x7f351bc209ef]
Aborted (core dumped)
Seems to be a bug in the btrfs program.
# uname -a
Linux linux-ze6w 4.12.14-lp151.28.13-default #1 SMP Wed Aug 7 07:20:16 UTC 2019 (0c09ad2) x86_64 x86_64 x86_64 GNU/Linux
# btrfs version
btrfs-progs v4.19.1
Best regards,
Chris
