On Wed, Jul 11, 2018 at 12:07:05PM +0800, Su Yue wrote:
> > So, I went back to https://github.com/Damenly/btrfs-progs.git/tmp1 and
> > I'm running it without the extra options you added with hardcoded stuff:
> > gargamel:/var/local/src/btrfs-progs.sy-test# ./btrfsck --mode=lowmem
> > --repair /dev/mapper/dshelf2
> >
> This is okay. Let's wait to see the result.
Sadly, it crashes quickly:
Starting program: /var/local/src/btrfs-progs.sy-test/btrfs check --mode=lowmem
--repair /dev/mapper/dshelf2
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
enabling repair mode
WARNING: low-memory mode repair support is only partial
Checking filesystem on /dev/mapper/dshelf2
UUID: 0f1a0c9f-4e54-4fa7-8736-fd50818ff73d
checking extents
Program received signal SIGSEGV, Segmentation fault.
check_tree_block_backref (fs_info=fs_info@entry=0x555555825e10,
root_id=root_id@entry=18446744073709551607, bytenr=bytenr@entry=655589376,
level=level@entry=1)
at check/mode-lowmem.c:3744
3744 if (btrfs_header_bytenr(node) != bytenr) {
(gdb) bt
#0 check_tree_block_backref (fs_info=fs_info@entry=0x555555825e10,
root_id=root_id@entry=18446744073709551607, bytenr=bytenr@entry=655589376,
level=level@entry=1)
at check/mode-lowmem.c:3744
#1 0x00005555555cb1f9 in check_extent_item
(fs_info=fs_info@entry=0x555555825e10,
path=path@entry=0x7fffffffdc60) at check/mode-lowmem.c:4194
#2 0x00005555555d06e9 in check_leaf_items (account_bytes=1,
nrefs=0x7fffffffdb80,
path=0x7fffffffdc60, root=0x5555558262f0) at check/mode-lowmem.c:4654
#3 walk_down_tree (check_all=1, nrefs=0x7fffffffdb80, level=<synthetic
pointer>,
path=0x7fffffffdc60, root=0x5555558262f0) at check/mode-lowmem.c:4790
#4 check_btrfs_root (root=root@entry=0x5555558262f0,
check_all=check_all@entry=1)
at check/mode-lowmem.c:5114
#5 0x00005555555d144f in check_chunks_and_extents_lowmem
(fs_info=fs_info@entry=0x555555825e10)
at check/mode-lowmem.c:5475
#6 0x00005555555b44b1 in do_check_chunks_and_extents (fs_info=0x555555825e10)
at check/main.c:8369
#7 cmd_check (argc=<optimized out>, argv=<optimized out>) at check/main.c:9899
#8 0x0000555555567510 in main (argc=4, argv=0x7fffffffe390) at btrfs.c:302
Would you like anything off gdb? (feel free to Email me directly or
point me to an online chat platform you have access to)
Marc
--
"A mouse is a device used to point at the xterm you want to type in" - A.S.R.
Microsoft is to operating systems ....
.... what McDonalds is to gourmet cooking
Home page: http://marc.merlins.org/ | PGP 7F55D5F27AAF9D08
--
To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in
the body of a message to majord...@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
