Created attachment 174721 [details] BTRFS-Image causing userland tools to crash The btrfs-image attached to this bug causes the userland tools v3.19.1 to crash by reaching a call to abort(). (gdb) run check btrfs_fukked_abort_cmds-check:5919.bin Starting program: /usr/sbin/btrfs check btrfs_fukked_abort_cmds-check:5919.bin [Thread debugging using libthread_db enabled] Using host libthread_db library "/lib64/libthread_db.so.1". Checking filesystem on btrfs_fukked_abort_cmds-check:5919.bin UUID: cdd8684f-9eb1-40a4-91ec-1ed7c3cb444c checking extents Program received signal SIGABRT, Aborted. 0x00000032626348d7 in __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:55 55 return INLINE_SYSCALL (tgkill, 3, pid, selftid, sig); (gdb) bt #0 0x00000032626348d7 in __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:55 #1 0x000000326263653a in __GI_abort () at abort.c:89 #2 0x0000000000425038 in run_next_block (root=root@entry=0x894b20, bits=bits@entry=0x896960, last=last@entry=0x7fffffffd470, pending=pending@entry=0x7fffffffd5f0, seen=seen@entry=0x7fffffffd5e0, reada=reada@entry=0x7fffffffd600, nodes=0x7fffffffd610, extent_cache=0x7fffffffd5d0, chunk_cache=0x7fffffffd5c0, dev_cache=0x7fffffffd5b0, block_group_cache=0x7fffffffd6a0, dev_extent_cache=0x7fffffffd6c0, ri=0x894e20, bits_nr=1024) at cmds-check.c:5908 #3 0x000000000042523d in deal_root_from_list (list=list@entry=0x7fffffffd640, root=root@entry=0x894b20, bits=bits@entry=0x896960, pending=pending@entry=0x7fffffffd5f0, seen=seen@entry=0x7fffffffd5e0, reada=reada@entry=0x7fffffffd600, nodes=0x7fffffffd610, extent_cache=0x7fffffffd5d0, chunk_cache=0x7fffffffd5c0, dev_cache=0x7fffffffd5b0, block_group_cache=0x7fffffffd6a0, dev_extent_cache=0x7fffffffd6c0, bits_nr=1024) at cmds-check.c:7838 #4 0x0000000000425f3d in check_chunks_and_extents (root=root@entry=0x894b20) at cmds-check.c:8000 #5 0x0000000000428144 in cmd_check (argc=<optimized out>, argv=<optimized out>) at cmds-check.c:9431 #6 0x000000000040e5a2 in main (argc=2, argv=0x7fffffffde90) at btrfs.c:245
Does not crash anymore with 4.7.1, $ btrfs check image ERROR: invalid chunk sectorsize 4096 ERROR: Superblock checksums match, but it has an invalid chunk, try btrfsck --repair -s <superblock> ie, 0,1,2 Couldn't open file system The error message is not quite clear why it fails, it's because superblock::sectorsize is 8392704, and the chunk sectorsize must match. Image added to testsuite. Closing, thanks.