#0  btrfs_new_device_extent_record (leaf=leaf@entry=0x7ffb0c0008c0, key=key@entry=0x7ffb1a423c30, slot=slot@entry=30) at cmds-check.c:4952
4952		rec->chunk_objecteid =
[Current thread is 1 (Thread 0x7ffb1a424700 (LWP 6144))]
(gdb) bt
#0  btrfs_new_device_extent_record (leaf=leaf@entry=0x7ffb0c0008c0, key=key@entry=0x7ffb1a423c30, slot=slot@entry=30) at cmds-check.c:4952
#1  0x0000000000430e97 in process_device_extent_item (slot=30, key=0x7ffb1a423c30, leaf=0x7ffb0c0008c0, devext_cache=0x7fffb3a94070)
    at chunk-recover.c:333
#2  extract_metadata_record (rc=rc@entry=0x7fffb3a94020, leaf=leaf@entry=0x7ffb0c0008c0) at chunk-recover.c:728
#3  0x00000000004313c8 in scan_one_device (dev_scan_struct=0xfa4310) at chunk-recover.c:808
#4  0x00007ffb1b7d24a4 in start_thread () from /usr/lib/libpthread.so.0
#5  0x00007ffb1b51013d in clone () from /usr/lib/libc.so.6
(gdb) frame 0
#0  btrfs_new_device_extent_record (leaf=leaf@entry=0x7ffb0c0008c0, key=key@entry=0x7ffb1a423c30, slot=slot@entry=30) at cmds-check.c:4952
4952		rec->chunk_objecteid =
(gdb) frame 1
#1  0x0000000000430e97 in process_device_extent_item (slot=30, key=0x7ffb1a423c30, leaf=0x7ffb0c0008c0, devext_cache=0x7fffb3a94070)
    at chunk-recover.c:333
333		rec = btrfs_new_device_extent_record(leaf, key, slot);
(gdb) frame 2
#2  extract_metadata_record (rc=rc@entry=0x7fffb3a94020, leaf=leaf@entry=0x7ffb0c0008c0) at chunk-recover.c:728
728				ret = process_device_extent_item(&rc->devext, leaf,
(gdb) frame 3
#3  0x00000000004313c8 in scan_one_device (dev_scan_struct=0xfa4310) at chunk-recover.c:808
808				ret = extract_metadata_record(rc, buf);
(gdb) frame 4
#4  0x00007ffb1b7d24a4 in start_thread () from /usr/lib/libpthread.so.0
(gdb) frame 5
#5  0x00007ffb1b51013d in clone () from /usr/lib/libc.so.6
(gdb)