I crashed btrfsck fairly easily; there doesn't appear to be a btrfsck man- page. Also, I cannot find a bugzilla.redhat.com category for it (btrfs- progs-0.18-4.fc11.i586): [roth@t60 ~]$ btrfsck -h Segmentation fault [roth@t60 ~]$ sudo yum --enablerepo='*-debuginfo' install /usr/lib/ debug/.build-id/eb/30dde67c6d1fcac3437a4bb2e9bff1e7fea9ff.debug ... [roth@t60 ~]$ gdb btrfsck GNU gdb (GDB) Fedora (6.8.50.20090302-21.fc11) Copyright (C) 2009 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/ gpl.html> This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law. Type "show copying" and "show warranty" for details. This GDB was configured as "i586-redhat-linux-gnu". For bug reporting instructions, please see: <http://www.gnu.org/software/gdb/bugs/>... (gdb) r -h Starting program: /sbin/btrfsck -h warning: Unable to open "librpm.so" (librpm.so: cannot open shared object file: No such file or directory), missing debuginfos notifications will not be displayed Missing separate debuginfo for /lib/ld-linux.so.2 Try: yum --enablerepo='*-debuginfo' install /usr/lib/debug/.build- id/48/283e7deeb3fcd5c04551326fa7507d3412deb6.debug Missing separate debuginfo for /lib/libuuid.so.1 Try: yum --enablerepo='*-debuginfo' install /usr/lib/debug/.build-id/57/ aea3dccf7425e7031c185e7616436a93551e7a.debug Missing separate debuginfo for /lib/libc.so.6 Try: yum --enablerepo='*-debuginfo' install /usr/lib/debug/.build- id/6a/5fc17148e02664a1598b1f4d7fee2579821b73.debug Program received signal SIGSEGV, Segmentation fault. check_extents (root=0x0) at btrfsck.c:2008 2008 root->fs_info->tree_root- >root_key.objectid); (gdb) list list 2003 exit(1); 2004 } 2005 2006 add_root_to_pending(root->fs_info->tree_root->node, bits, bits_nr, 2007 &extent_cache, &pending, &seen, &reada, &nodes, 2008 root->fs_info->tree_root- >root_key.objectid); 2009 2010 add_root_to_pending(root->fs_info->chunk_root->node, bits, bits_nr, 2011 &extent_cache, &pending, &seen, &reada, &nodes, 2012 root->fs_info->chunk_root- >root_key.objectid); (gdb) thread apply all bt full thread apply all bt full Thread 1 (process 2463): #0 check_extents (root=0x0) at btrfsck.c:2008 extent_cache = {root = {rb_node = 0x0, rotate_notify = 0}} seen = {root = {rb_node = 0x0, rotate_notify = 0}} pending = {root = {rb_node = 0x0, rotate_notify = 0}} reada = {root = {rb_node = 0x0, rotate_notify = 0}} nodes = {root = {rb_node = 0x0, rotate_notify = 0}} path = {nodes = {0x0, 0x0, 0x0, 0x0, 0xc0eba0, 0xc0e948, 0x0, 0x0}, slots = {0, 0, 0, 0, 0, 0, 0, 0}, reada = 0, lowest_level = 0, search_for_split = 0} key = {objectid = 381908491958458559, type = 8 '\b', offset = 3221218881} ret = <value optimized out> last = 8227906564924124975 leaf = <value optimized out> ri = {inode = {generation = 484136950010265826, transid = 1152921504606846976, size = 8124493597865672693, nbytes = 15114080222217027501, block_group = 8083176521201664060, nlink = 23866723, uid = 268435456, gid = 2, mode = 3288334352, rdev = 1297248759981326559, flags = 2305843009347911680, sequence = 576672124920397794, reserved = {14123288433849794560, 5530420214568632543, 144115190491824190, 1153133571905421312}, atime = {sec = 6629298651769864169, nsec = 2998927330}, ctime = { sec = 4663477277173006334, nsec = 2684403703}, mtime = { sec = 4035225266136023016, nsec = 0}, otime = { sec = 8791026472677539840, nsec = 939572983}}, generation = 1152921504606846976, root_dirid = 12157467056659759081, bytenr = 123848889235668973, byte_limit = 14123499358905171968, bytes_used = 14123498927126790367, last_snapshot = 16987577673444278495, flags = 7834011516109111054, refs = 2751988869, drop_progress = {objectid = 525446, type = 0 '\0', offset = 0}, drop_level = 0 '\0', level = 0 '\0'} __PRETTY_FUNCTION__ = "check_extents" #1 0x0804d74a in main (ac=2, av=0xbfffe484) at btrfsck.c:2078 root = 0x0 ret = <value optimized out> C -- fedora-list mailing list fedora-list@xxxxxxxxxx To unsubscribe: https://www.redhat.com/mailman/listinfo/fedora-list Guidelines: http://fedoraproject.org/wiki/Communicate/MailingListGuidelines