When I try btrfsck in repair mode, it fails to fix the corruption (log
below). Is there any other version of btrfsck besides the one at
git://git.kernel.org/pub/scm/linux/kernel/git/mason/btrfs-progs.git that
I could try?
(gdb) run
Starting program: /home/pp/btrfs-progs/btrfsck --repair /dev/mapper/pp-dysk4
enabling repair mode
ERROR: unable to scan the device '/dev/sda7' - Device or resource busy
ERROR: unable to scan the device '/dev/sdc7' - Device or resource busy
ERROR: unable to scan the device '/dev/sda7' - Device or resource busy
ERROR: unable to scan the device '/dev/sdc7' - Device or resource busy
checking extents
ref mismatch on [711069696 4096] extent item 1, found 0
btrfsck: extent-tree.c:2549: btrfs_reserve_extent: Assertion `!(ret)'
failed.
Program received signal SIGABRT, Aborted.
0x00007ffff784c425 in __GI_raise (sig=<optimized out>) at
../nptl/sysdeps/unix/sysv/linux/raise.c:64
64 ../nptl/sysdeps/unix/sysv/linux/raise.c: Nie ma takiego pliku ani
katalogu.
(gdb) bt
#0 0x00007ffff784c425 in __GI_raise (sig=<optimized out>) at
../nptl/sysdeps/unix/sysv/linux/raise.c:64
#1 0x00007ffff784fb8b in __GI_abort () at abort.c:91
#2 0x00007ffff78450ee in __assert_fail_base (fmt=<optimized out>,
assertion=0x43d21e "!(ret)",
file=0x43d210 "extent-tree.c", line=<optimized out>,
function=<optimized out>) at assert.c:94
#3 0x00007ffff7845192 in __GI___assert_fail (assertion=0x43d21e
"!(ret)", file=0x43d210 "extent-tree.c", line=2549,
function=0x43d870 <__PRETTY_FUNCTION__.7967>
"btrfs_reserve_extent") at assert.c:103
#4 0x000000000041ef7d in btrfs_reserve_extent (trans=0x64fed0,
root=0x64f6e0, num_bytes=4096, empty_size=0,
hint_byte=433791696896, search_end=18446744073709551615,
ins=0x7fffffffdd00, data=52) at extent-tree.c:2549
#5 0x000000000041f218 in alloc_tree_block (trans=0x64fed0,
root=0x64f6e0, num_bytes=4096, root_objectid=2,
generation=289502, flags=0, key=0x7fffffffdd80, level=3,
empty_size=0, hint_byte=433791696896,
search_end=18446744073709551615, ins=0x7fffffffdd00) at
extent-tree.c:2612
#6 0x000000000041f426 in btrfs_alloc_free_block (trans=0x64fed0,
root=0x64f6e0, blocksize=4096, root_objectid=2,
key=0x7fffffffdd80, level=3, hint=433791696896, empty_size=0) at
extent-tree.c:2658
#7 0x000000000040d504 in __btrfs_cow_block (trans=0x64fed0,
root=0x64f6e0, buf=0x6749c0, parent=0x0, parent_slot=0,
cow_ret=0x7fffffffde68, search_start=433791696896, empty_size=0) at
ctree.c:321
#8 0x000000000040d950 in btrfs_cow_block (trans=0x64fed0,
root=0x64f6e0, buf=0x6749c0, parent=0x0, parent_slot=0,
cow_ret=0x7fffffffde68) at ctree.c:410
#9 0x000000000040f464 in btrfs_search_slot (trans=0x64fed0,
root=0x64f6e0, key=0x7fffffffdec0, p=0x30409b20, ins_len=0,
cow=1) at ctree.c:1214
#10 0x000000000040a246 in delete_extent_records (trans=0x64fed0,
root=0x64f6e0, path=0x30409b20, bytenr=711069696,
new_len=4096) at btrfsck.c:2858
#11 0x000000000040aa2d in fixup_extent_refs (trans=0x64fed0,
info=0x6513e0, rec=0xf7de760) at btrfsck.c:3078
#12 0x000000000040b1a3 in check_extent_refs (trans=0x64fed0,
root=0xa0fa70, extent_cache=0x7fffffffe080, repair=1)
at btrfsck.c:3317
#13 0x000000000040b89f in check_extents (trans=0x64fed0, root=0xa0fa70,
repair=1) at btrfsck.c:3461
#14 0x000000000040bcd7 in main (ac=1, av=0x7fffffffe4d8) at btrfsck.c:3573
(gdb)
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