Hi together,
after a btrfs was missing some csums and therefore remounted read-only,
I unmounted it and experienced
$ sudo btrfsck --init-csum-tree /dev/sde1
Creating a new CRC tree
Checking filesystem on /dev/sde1
UUID: bd6298ea-0748-45fe-87c8-eace6793ca89
Reinit crc root
extent-tree.c:2657: btrfs_reserve_extent: Assertion `ret` failed.
btrfs check[0x43d6c1]
btrfs check(btrfs_reserve_extent+0xb63)[0x443111]
btrfs check(btrfs_alloc_free_block+0x5a)[0x44318c]
btrfs check[0x436585]
btrfs check(btrfs_search_slot+0x11d1)[0x4382fc]
btrfs check(btrfs_csum_file_block+0x3ce)[0x4477cc]
btrfs check(cmd_check+0xef2)[0x425ef5]
btrfs check(main+0x15d)[0x40991d]
/lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xf5)[0x7f405dcf8ec5]
btrfs check[0x4094d9]
with btrfs-progs 3.18-rc1 on Linux 3.17.6. What could that mean?
-Kalle
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