Re: [bcachefs] problem with `bcache fsck`

[Marcin <marcin@mejor.pl>]

W dniu 2017-03-17 09:57, Marcin napisał(a):
> W dniu 2017-03-17 00:57, Kent Overstreet napisał(a):
>> On Thu, Mar 16, 2017 at 11:07:20PM +0100, Marcin wrote:
>>> If I add bcachefs to fstab openrc expects userland fsck to works this 
>>> is why
>>> I tried it to use.
>> 
>> Fsck should be fixed now
> 
> Thanks, but when I pass only one device from two used in tiered fs
> `bcache fsck` becomes upset:
> # bcache fsck /dev/sdd1
> bcache: libbcache/buckets.h:87: gen_after: Assertion `!(r > 128U)' 
> failed.
> 
> Also it happened I got segfault while using fsck. I don't have
> coredump, I'll try to catch it.

Here it is (about assertion):

# bcache format --compression_type=gzip --metadata_replicas=2 
--data_checksum_type=crc64 --metadata_checksum_type=crc64 --tier=2 
/dev/sde1 --tier=3 /dev/sdd1 >/dev/null &&  mount -t bcache 
/dev/sdd1:/dev/sde1 /mnt/test/ &&  umount /mnt/test &&  bcache fsck 
/dev/sde1
bcache: libbcache/buckets.h:87: gen_after: Assertion `!(r > 128U)' 
failed.
Przerwane (core dumped)


  # echo bt full | gdb -q /sbin/bcache 
/tmp/'core-1489788240-0-6-!sbin!bcache-3330'                             
                            [40/996]
Reading symbols from /sbin/bcache...Reading symbols from 
/usr/lib64/debug//sbin/bcache.debug...done.
done.
[New LWP 3330]
[New LWP 3338]
[New LWP 3339]
[New LWP 3332]
[New LWP 3333]
[New LWP 3335]
[New LWP 3336]
[New LWP 3337]
[New LWP 3331]
[New LWP 3334]

warning: Could not load shared library symbols for linux-vdso.so.1.
Do you need "set solib-search-path" or "set sysroot"?
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib64/libthread_db.so.1".
Core was generated by `bcache fsck /dev/sde1'.
Program terminated with signal SIGABRT, Aborted.
#0  __GI_raise (sig=sig@entry=6) at 
../sysdeps/unix/sysv/linux/raise.c:54
54      ../sysdeps/unix/sysv/linux/raise.c: Nie ma takiego pliku ani 
katalogu.
[Current thread is 1 (Thread 0x7f0e547fb900 (LWP 3330))]
(gdb) #0  __GI_raise (sig=sig@entry=6) at 
../sysdeps/unix/sysv/linux/raise.c:54                                    
                                   [17/996]
         resultvar = 0
         pid = 3330
         selftid = 3330
#1  0x00007f0e52ca365a in __GI_abort () at abort.c:89
         save_stage = 2
         act = {__sigaction_handler = {sa_handler = 0x4, sa_sigaction = 
0x4}, sa_mask = {__val = {139699521867039, 255, 140733776075696, 
623191333, 0, 0, 0,
               21474836480, 139699496478336, 140733776075848, 
140733776075648, 139699496492088, 139699496505728, 0, 139699524009984, 
4587397}},
           sa_flags = 87, sa_restorer = 0x467e18 
<__PRETTY_FUNCTION__.13545>}
         sigs = {__val = {32, 0 <repeats 15 times>}}
#2  0x00007f0e52c9b197 in __assert_fail_base (fmt=<optimized out>, 
assertion=assertion@entry=0x45ff85 "!(r > 128U)",
     file=file@entry=0x45ff71 "libbcache/buckets.h", line=line@entry=87, 
function=function@entry=0x467e18 <__PRETTY_FUNCTION__.13545> 
"gen_after")
     at assert.c:92
         str = 0xe95170 ""
         total = 4096
#3  0x00007f0e52c9b242 in __GI___assert_fail 
(assertion=assertion@entry=0x45ff85 "!(r > 128U)", 
file=file@entry=0x45ff71 "libbcache/buckets.h",
     line=line@entry=87, function=function@entry=0x467e18 
<__PRETTY_FUNCTION__.13545> "gen_after") at assert.c:101
No locals.
#4  0x0000000000403164 in gen_after (b=<optimized out>, a=<optimized 
out>) at libbcache/buckets.h:87
No locals.
#5  0x00000000004299cd in gen_after (b=<optimized out>, a=<optimized 
out>) at libbcache/extents.c:629
         r = <optimized out>
#6  ptr_stale (ptr=0xe61e40, ca=<optimized out>) at 
libbcache/buckets.h:99
No locals.
#7  bch_btree_pick_ptr (c=c@entry=0xe22010, b=b@entry=0xe61e10) at 
libbcache/extents.c:606
         _ret = <optimized out>
         ca = <optimized out>
         root = <optimized out>
         e = {{{k = 0xe61e18, v = <optimized out>}, s_c = {k = 0xe61e18, 
v = <optimized out>}}}
         crc = <optimized out>
         ptr = 0xe61e40
         pick = {crc = {type = 0, _compressed_size = 0, 
_uncompressed_size = 0, offset = 0, nonce = 0, csum_type = 0, 
compression_type = 0, csum = {lo = 0,
               hi = 0}}, ptr = {type = 0, cached = 0, erasure_coded = 0, 
reservation = 0, offset = 0, dev = 0, gen = 0}, ca = 0x0}
#8  0x000000000043124c in bch_btree_node_read (c=c@entry=0xe22010, 
b=b@entry=0xe61e10) at libbcache/btree_io.c:1196
         cl = {{{wq = 0x0, s = 0x0, list = {next = 0x0}, fn = 0x0}, work 
= {data = {counter = 0}, entry = {next = 0x0, prev = 0x0}, func = 0x0}},
           parent = 0x0, remaining = {counter = -2147483647}}
         bio = <optimized out>
         pick = {crc = {type = 7, _compressed_size = 7110, 
_uncompressed_size = 2570, offset = 435, nonce = 0, csum_type = 0, 
compression_type = 0, csum = {
               lo = 4386366, hi = 467}}, ptr = {type = 0, cached = 0, 
erasure_coded = 1, reservation = 1, offset = 25916528, dev = 0, gen = 
0},
           ca = 0x7f0e4dcfc000}
#9  0x00000000004363bc in bch_btree_root_read (c=c@entry=0xe22010, 
id=id@entry=BTREE_ID_EXTENTS, k=<optimized out>, level=0) at 
libbcache/btree_io.c:1254
         cl = {{{wq = 0x0, s = 0x0, list = {next = 0x0}, fn = 0x0}, work 
= {data = {counter = 0}, entry = {next = 0x0, prev = 0x0}, func = 0x0}},
           parent = 0x0, remaining = {counter = -2147483647}}
         b = 0xe61e10
         ret = 0
         __PRETTY_FUNCTION__ = "bch_btree_root_read"
#10 0x00000000004498b7 in __bch_fs_start (c=c@entry=0xe22010) at 
libbcache/super.c:807
         level = <optimized out>
         err = 0x46114b "error reading btree root"
         i = <optimized out>
         id = 0
         now = <optimized out>
         journal = {next = 0x7f0e40000990, prev = 0x7f0e40000990}
         j = 0x7f0e400009a0
---Type <return> to continue, or q <return> to quit---        ret = 0
         __PRETTY_FUNCTION__ = "__bch_fs_start"
#11 0x000000000044aa92 in bch_fs_open (devices=<optimized out>, 
nr_devices=nr_devices@entry=1, opts=..., ret=ret@entry=0x7fff22bb2170)
     at libbcache/super.c:1797
         err = 0x461249 "insufficient devices"
         c = 0xe22010
         sb = 0xe20850
         i = 1
         best_sb = <optimized out>
#12 0x000000000045246e in cmd_fsck (argc=<optimized out>, 
argv=argv@entry=0x7fff22bb22d8) at cmd_fsck.c:55
         opts = {read_only = -1 '\377', nostart = -1 '\377', errors = -1 
'\377', metadata_replicas = -1 '\377', data_replicas = -1 '\377',
           metadata_replicas_required = -1 '\377', data_replicas_required 
= -1 '\377', metadata_checksum = -1 '\377', data_checksum = -1 '\377',
           compression = -1 '\377', str_hash = -1 '\377', inodes_32bit = 
-1 '\377', gc_reserve_percent = -1 '\377', root_reserve_percent = -1 
'\377',
           wide_macs = -1 '\377', verbose_recovery = -1 '\377', posix_acl 
= -1 '\377', journal_flush_disabled = -1 '\377', nofsck = -1 '\377',
           fix_errors = -1 '\377', nochanges = -1 '\377', noreplay = -1 
'\377', norecovery = -1 '\377', noexcl = -1 '\377', sb = -1}
         c = 0x0
         err = <optimized out>
         opt = <optimized out>
#13 0x0000000000403554 in main (argc=2, argv=0x7fff22bb22d8) at 
bcache.c:134
         cmd = 0x7fff22bb451d "fsck"
(gdb) quit