Checking that ptrace can change system call numbers...Core dump limits : soft - 0 hard - NONE OK Checking syscall emulation patch for ptrace...Core dump limits : soft - 0 hard - NONE OK Checking advanced syscall emulation patch for ptrace...Core dump limits : soft - 0 hard - NONE OK Core dump limits : soft - 0 hard - NONE Checking for tmpfs mount on /dev/shm...OK Checking PROT_EXEC mmap in /dev/shm/...OK Checking for the skas3 patch in the host: - /proc/mm...not found: No such file or directory - PTRACE_FAULTINFO...not found OK - PTRACE_LDT...not found OK OK UML running in SKAS0 mode Adding 18935808 bytes to physical memory to account for exec-shield gap [ 0.000000] Linux version 2.6.39-rc4+ (st@st) (gcc version 4.5.2 (Gentoo Hardened 4.5.2 p1.0, pie-0.4.5) ) #68 Wed Apr 20 00:24:54 EEST 2011 [ 0.000000] Built 1 zonelists in Zone order, mobility grouping on. Total pages: 133574 [ 0.000000] Kernel command line: ubd0=/home/st/linux-2.6-um-fs/chewed-portage.img root=/dev/root rootflags=/home/st/linux-2.6-um-fs/root rw rootfstype=hostfs mem=512M init=/init [ 0.000000] PID hash table entries: 4096 (order: 3, 32768 bytes) [ 0.000000] Dentry cache hash table entries: 131072 (order: 8, 1048576 bytes) [ 0.000000] Inode-cache hash table entries: 65536 (order: 7, 524288 bytes) [ 0.000000] Memory: 502504k available [ 0.000000] SLUB: Genslabs=15, HWalign=64, Order=0-3, MinObjects=0, CPUs=1, Nodes=1 [ 0.000000] NR_IRQS:15 [ 0.000000] ODEBUG: selftest passed [ 0.000000] Calibrating delay loop... 1036.28 BogoMIPS (lpj=5181440) [ 0.040000] pid_max: default: 32768 minimum: 301 [ 0.040000] Mount-cache hash table entries: 256 [ 0.040000] Checking that host ptys support output SIGIO...Yes [ 0.040000] Checking that host ptys support SIGIO on close...No, enabling workaround [ 0.040000] Using 2.6 host AIO [ 0.040000] atomic64 test passed [ 0.040000] NET: Registered protocol family 16 [ 0.040000] bio: create slab at 0 [ 0.040000] Switching to clocksource itimer [ 0.040000] NET: Registered protocol family 2 [ 0.040000] IP route cache hash table entries: 8192 (order: 4, 65536 bytes) [ 0.040000] IPv4 FIB: Using LC-trie version 0.409 [ 0.040000] TCP established hash table entries: 32768 (order: 7, 524288 bytes) [ 0.040000] TCP bind hash table entries: 32768 (order: 6, 262144 bytes) [ 0.040000] TCP: Hash tables configured (established 32768 bind 32768) [ 0.040000] TCP reno registered [ 0.040000] UDP hash table entries: 512 (order: 2, 16384 bytes) [ 0.040000] UDP-Lite hash table entries: 512 (order: 2, 16384 bytes) [ 0.040000] NET: Registered protocol family 1 [ 0.040000] mconsole (version 2) initialized on /home/st/.uml/FBNd0K/mconsole [ 0.040000] Checking host MADV_REMOVE support...OK [ 0.040000] ubd: Synchronous mode [ 0.040000] Btrfs loaded [ 0.040000] msgmni has been set to 981 [ 0.040000] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 254) [ 0.040000] io scheduler noop registered (default) [ 0.040000] loop: module loaded [ 0.040000] TCP cubic registered [ 0.040000] NET: Registered protocol family 17 [ 0.040000] Initialized stdio console driver [ 0.040000] Using a channel type which is configured out of UML [ 0.040000] parse_chan_pair failed for device 1 : Configuration failed [ 0.040000] Using a channel type which is configured out of UML [ 0.040000] parse_chan_pair failed for device 2 : Configuration failed [ 0.040000] Using a channel type which is configured out of UML [ 0.040000] parse_chan_pair failed for device 3 : Configuration failed [ 0.040000] Using a channel type which is configured out of UML [ 0.040000] parse_chan_pair failed for device 4 : Configuration failed [ 0.040000] Using a channel type which is configured out of UML [ 0.040000] parse_chan_pair failed for device 5 : Configuration failed [ 0.040000] Using a channel type which is configured out of UML [ 0.040000] parse_chan_pair failed for device 6 : Configuration failed [ 0.040000] Using a channel type which is configured out of UML [ 0.040000] parse_chan_pair failed for device 7 : Configuration failed [ 0.040000] Using a channel type which is configured out of UML [ 0.040000] parse_chan_pair failed for device 8 : Configuration failed [ 0.040000] Using a channel type which is configured out of UML [ 0.040000] parse_chan_pair failed for device 9 : Configuration failed [ 0.040000] Using a channel type which is configured out of UML [ 0.040000] parse_chan_pair failed for device 10 : Configuration failed [ 0.040000] Using a channel type which is configured out of UML [ 0.040000] parse_chan_pair failed for device 11 : Configuration failed [ 0.040000] Using a channel type which is configured out of UML [ 0.040000] parse_chan_pair failed for device 12 : Configuration failed [ 0.040000] Using a channel type which is configured out of UML [ 0.040000] parse_chan_pair failed for device 13 : Configuration failed [ 0.040000] Using a channel type which is configured out of UML [ 0.040000] parse_chan_pair failed for device 14 : Configuration failed [ 0.040000] Using a channel type which is configured out of UML [ 0.040000] parse_chan_pair failed for device 15 : Configuration failed [ 0.040000] Console initialized on /dev/tty0 [ 0.040000] console [tty0] enabled [ 0.040000] console [mc-1] enabled [ 0.040000] ubda: unknown partition table [ 0.040000] VFS: Mounted root (hostfs filesystem) on device 0:11. mount /mnt/btr/; rm -rf /mnt/btr/var_tmp/paludis/dev-lang-jhc-9999/ [ 0.040000] device label PORTAGE devid 1 transid 17409 /dev/ubda [ 0.040000] btrfs: use lzo compression [ 0.040000] new update_space_info: [ 0.040000] space_info has 0 free, is not full [ 0.040000] space_info total=0, used=0, pinned=0, reserved=0, may_use=0, readonly=0 [ 0.040000] new update_space_info: [ 0.040000] space_info has 0 free, is not full [ 0.040000] space_info total=0, used=0, pinned=0, reserved=0, may_use=0, readonly=0 [ 0.040000] new update_space_info: [ 0.040000] space_info has 0 free, is not full [ 0.040000] space_info total=0, used=0, pinned=0, reserved=0, may_use=0, readonly=0 [ 0.040000] found update_space_info: [ 0.040000] space_info has 4190208 free, is not full [ 0.040000] space_info total=4194304, used=4096, pinned=0, reserved=0, may_use=0, readonly=0 [ 0.040000] found update_space_info: [ 0.040000] space_info has 2662400 free, is not full [ 0.040000] space_info total=8388608, used=5726208, pinned=0, reserved=0, may_use=0, readonly=0 [ 0.040000] found update_space_info: [ 0.040000] space_info has 4165632 free, is not full [ 0.040000] space_info total=16777216, used=12611584, pinned=0, reserved=0, may_use=0, readonly=0 [ 0.040000] found update_space_info: [ 0.040000] space_info has 230006784 free, is not full [ 0.040000] space_info total=516816896, used=286810112, pinned=0, reserved=0, may_use=0, readonly=0 [ 0.040000] found update_space_info: [ 0.040000] space_info has 274923520 free, is not full [ 0.040000] space_info total=1016856576, used=741867520, pinned=0, reserved=0, may_use=0, readonly=65536 [ 0.040000] found update_space_info: [ 0.040000] space_info has 509603840 free, is not full [ 0.040000] space_info total=1516896256, used=1007226880, pinned=0, reserved=0, may_use=0, readonly=65536 [ 0.040000] found update_space_info: [ 0.040000] space_info has 960970752 free, is not full [ 0.040000] space_info total=2016935936, used=1055899648, pinned=0, reserved=0, may_use=0, readonly=65536 [ 0.040000] found update_space_info: [ 0.040000] space_info has 1266278400 free, is not full [ 0.040000] space_info total=2516975616, used=1250631680, pinned=0, reserved=0, may_use=0, readonly=65536 [ 0.040000] found update_space_info: [ 0.040000] space_info has 1431748608 free, is not full [ 0.040000] space_info total=3017015296, used=1585201152, pinned=0, reserved=0, may_use=0, readonly=65536 [ 0.040000] found update_space_info: [ 0.040000] space_info has 1931784192 free, is not full [ 0.040000] space_info total=3517054976, used=1585205248, pinned=0, reserved=0, may_use=0, readonly=65536 [ 0.040000] found update_space_info: [ 0.040000] space_info has 2431819776 free, is not full [ 0.040000] space_info total=4017094656, used=1585209344, pinned=0, reserved=0, may_use=0, readonly=65536 [ 0.040000] found update_space_info: [ 0.040000] space_info has 2884710400 free, is not full [ 0.040000] space_info total=4517134336, used=1632358400, pinned=0, reserved=0, may_use=0, readonly=65536 [ 0.040000] found update_space_info: [ 0.040000] space_info has 3364249600 free, is not full [ 0.040000] space_info total=4996726784, used=1632411648, pinned=0, reserved=0, may_use=0, readonly=65536 [ 0.040000] btrfs_lookup_dir_item -> btrfs_match_dir_item_name [ 0.040000] btrfs_match_dir_item_name (name='default') [ 0.040000] btrfs_lookup_dir_item -> btrfs_match_dir_item_name [ 0.040000] btrfs_match_dir_item_name (name='var_tmp') [ 0.040000] btrfs_lookup_dir_item -> btrfs_match_dir_item_name [ 0.040000] btrfs_match_dir_item_name (name='paludis') [ 0.040000] btrfs_lookup_dir_item -> btrfs_match_dir_item_name [ 0.040000] btrfs_match_dir_item_name (name='dev-lang-jhc-9999') [ 0.040000] btrfs_lookup_dir_item -> btrfs_match_dir_item_name [ 0.040000] btrfs_match_dir_item_name (name='work') [ 0.040000] btrfs_lookup_dir_item -> btrfs_match_dir_item_name [ 0.040000] btrfs_match_dir_item_name (name='jhc-9999') [ 0.040000] btrfs_lookup_dir_item -> btrfs_match_dir_item_name [ 0.040000] btrfs_match_dir_item_name (name='ac-macros') [ 0.040000] btrfs_lookup_dir_item -> btrfs_match_dir_item_name [ 0.040000] btrfs_match_dir_item_name (name='ac_define_dir.m4') [ 0.040000] reserve_metadata_bytes: [ 0.040000] space_info has 0 free, is not full [ 0.040000] space_info total=0, used=0, pinned=0, reserved=0, may_use=0, readonly=0 [ 0.040000] reserve_metadata_bytes: consider unused=0 [ 0.040000] shrink_delalloc: [ 0.040000] space_info has 18446744073708568576 free, is not full [ 0.040000] space_info total=0, used=0, pinned=0, reserved=983040, may_use=0, readonly=0 [ 0.040000] shrink_delalloc: kick writeback_inodes_sb_nr_if_idle to free 0 pages (yet 0 bytes to wb). [ 0.050000] Switched to NOHz mode on CPU #0 [ 0.050000] shrink_delalloc: kick writeback_inodes_sb_nr_if_idle to free 0 pages (yet 0 bytes to wb). [ 0.240000] shrink_delalloc: kick writeback_inodes_sb_nr_if_idle to free 0 pages (yet 0 bytes to wb). [ 0.250000] shrink_delalloc: kick writeback_inodes_sb_nr_if_idle to free 0 pages (yet 0 bytes to wb). [ 0.260000] shrink_delalloc: kick writeback_inodes_sb_nr_if_idle to free 0 pages (yet 0 bytes to wb). [ 0.270000] shrink_delalloc: kick writeback_inodes_sb_nr_if_idle to free 0 pages (yet 0 bytes to wb). [ 0.280000] shrink_delalloc: kick writeback_inodes_sb_nr_if_idle to free 0 pages (yet 0 bytes to wb). [ 0.290000] shrink_delalloc: kick writeback_inodes_sb_nr_if_idle to free 0 pages (yet 0 bytes to wb). [ 0.300000] shrink_delalloc: kick writeback_inodes_sb_nr_if_idle to free 0 pages (yet 0 bytes to wb). [ 0.310000] shrink_delalloc: kick writeback_inodes_sb_nr_if_idle to free 0 pages (yet 0 bytes to wb). [ 0.320000] reserve_metadata_bytes: shrink_delalloc(num_bytes=983040) -> 0 [ 0.320000] reserve_metadata_bytes: [ 0.320000] space_info has 18446744073708568576 free, is not full [ 0.320000] space_info total=0, used=0, pinned=0, reserved=983040, may_use=0, readonly=0 [ 0.320000] reserve_metadata_bytes: consider unused=983040 [ 0.320000] shrink_delalloc: [ 0.320000] space_info has 18446744073708568576 free, is not full [ 0.320000] space_info total=0, used=0, pinned=0, reserved=983040, may_use=0, readonly=0 [ 0.320000] shrink_delalloc: kick writeback_inodes_sb_nr_if_idle to free 0 pages (yet 0 bytes to wb). [ 0.330000] shrink_delalloc: kick writeback_inodes_sb_nr_if_idle to free 0 pages (yet 0 bytes to wb). [ 0.340000] shrink_delalloc: kick writeback_inodes_sb_nr_if_idle to free 0 pages (yet 0 bytes to wb). [ 0.350000] shrink_delalloc: kick writeback_inodes_sb_nr_if_idle to free 0 pages (yet 0 bytes to wb). [ 0.360000] shrink_delalloc: kick writeback_inodes_sb_nr_if_idle to free 0 pages (yet 0 bytes to wb). [ 0.370000] shrink_delalloc: kick writeback_inodes_sb_nr_if_idle to free 0 pages (yet 0 bytes to wb). [ 0.380000] shrink_delalloc: kick writeback_inodes_sb_nr_if_idle to free 0 pages (yet 0 bytes to wb). [ 0.390000] shrink_delalloc: kick writeback_inodes_sb_nr_if_idle to free 0 pages (yet 0 bytes to wb). [ 0.400000] shrink_delalloc: kick writeback_inodes_sb_nr_if_idle to free 0 pages (yet 0 bytes to wb). [ 0.410000] shrink_delalloc: kick writeback_inodes_sb_nr_if_idle to free 0 pages (yet 0 bytes to wb). [ 0.420000] reserve_metadata_bytes: shrink_delalloc(num_bytes=2949120) -> 0 [ 0.420000] reserve_metadata_bytes: [ 0.420000] space_info has 18446744073708568576 free, is not full [ 0.420000] space_info total=0, used=0, pinned=0, reserved=983040, may_use=0, readonly=0 [ 0.420000] reserve_metadata_bytes: consider unused=983040 [ 0.420000] shrink_delalloc: [ 0.420000] space_info has 18446744073708568576 free, is not full [ 0.420000] space_info total=0, used=0, pinned=0, reserved=983040, may_use=0, readonly=0 [ 0.420000] shrink_delalloc: kick writeback_inodes_sb_nr_if_idle to free 0 pages (yet 0 bytes to wb). [ 0.430000] shrink_delalloc: kick writeback_inodes_sb_nr_if_idle to free 0 pages (yet 0 bytes to wb). [ 0.440000] shrink_delalloc: kick writeback_inodes_sb_nr_if_idle to free 0 pages (yet 0 bytes to wb). [ 0.450000] shrink_delalloc: kick writeback_inodes_sb_nr_if_idle to free 0 pages (yet 0 bytes to wb). [ 0.460000] shrink_delalloc: kick writeback_inodes_sb_nr_if_idle to free 0 pages (yet 0 bytes to wb). [ 0.470000] shrink_delalloc: kick writeback_inodes_sb_nr_if_idle to free 0 pages (yet 0 bytes to wb). [ 0.480000] shrink_delalloc: kick writeback_inodes_sb_nr_if_idle to free 0 pages (yet 0 bytes to wb). [ 0.490000] shrink_delalloc: kick writeback_inodes_sb_nr_if_idle to free 0 pages (yet 0 bytes to wb). [ 0.500000] shrink_delalloc: kick writeback_inodes_sb_nr_if_idle to free 0 pages (yet 0 bytes to wb). [ 0.510000] shrink_delalloc: kick writeback_inodes_sb_nr_if_idle to free 0 pages (yet 0 bytes to wb). [ 0.520000] reserve_metadata_bytes: shrink_delalloc(num_bytes=3932160) -> 0 [ 0.520000] btrfs_lookup_dir_item -> btrfs_match_dir_item_name [ 0.520000] btrfs_match_dir_item_name (name='ac_define_dir.m4') [ 0.520000] btrfs_match_dir_item_name (name='ac_define_dir.m4') [ 0.520000] __unlinking 'ac_define_dir.m4' [ 0.520000] reserve_metadata_bytes: [ 0.520000] space_info has 0 free, is not full [ 0.520000] space_info total=0, used=0, pinned=0, reserved=0, may_use=0, readonly=0 [ 0.520000] reserve_metadata_bytes: consider unused=0 [ 0.520000] use_block_rsv (global metadata rsv) ret=-28 [ 0.520000] btrfs_alloc_free_block: use_block_rsv error=-28 [ 0.520000] __btrfs_cow_block: btrfs_alloc_free_block ret=-28 [ 0.520000] 1. btrfs_search_slot ret=-28 [ 0.520000] btrfs_lookup_dir_item: search slot failed: -28 [ 0.520000] btrfs_lookup_dir_item: IS_ERR(di) = -28 [ 0.520000] BUG: failure at /mnt/archive/src/linux-2.6/fs/btrfs/inode.c:2982/btrfs_unlink()! [ 0.520000] Kernel panic - not syncing: BUG! [ 0.520000] Call Trace: [ 0.520000] 80fb7c78: [<601ae895>] panic+0xea/0x1dc [ 0.520000] 80fb7c98: [<601aea27>] printk+0xa0/0xa9 [ 0.520000] 80fb7cf8: [<600b91de>] btrfs_free_path+0x2a/0x2f [ 0.520000] 80fb7d38: [<600dc01a>] btrfs_unlink_inode+0x4b/0x7c [ 0.520000] 80fb7d78: [<600dc10f>] btrfs_unlink+0xc4/0xee [ 0.520000] 80fb7db8: [<6007fccb>] vfs_unlink+0x55/0x8e [ 0.520000] 80fb7de8: [<6007fdcc>] do_unlinkat+0xc8/0x156 [ 0.520000] 80fb7e48: [<6007818e>] sys_newlstat+0x29/0x34 [ 0.520000] 80fb7ec8: [<6007fe91>] sys_unlink+0x11/0x13 [ 0.520000] 80fb7ed8: [<600171f0>] handle_syscall+0x50/0x70 [ 0.520000] 80fb7ef8: [<60021af5>] userspace+0x30f/0x3c9 [ 0.520000] 80fb7fc8: [<600148c9>] fork_handler+0x62/0x69 [ 0.520000] [ 0.520000] [ 0.520000] Pid: 160, comm: kill Not tainted 2.6.39-rc4+ [ 0.520000] RIP: 0033:[<00000000005443a7>] [ 0.520000] RSP: 0000007fbf931cf8 EFLAGS: 00000246 [ 0.520000] RAX: ffffffffffffffda RBX: 000000000086a010 RCX: ffffffffffffffff [ 0.520000] RDX: 0000007fbf931d00 RSI: 0000007fbf931d00 RDI: 000000000086a010 [ 0.520000] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 0.520000] R10: 7263616d2d63612f R11: 0000000000000246 R12: 0000000000000000 [ 0.520000] R13: 0000000040001010 R14: 000000000086a010 R15: 00000000ffffffff [ 0.520000] Call Trace: [ 0.520000] 80fb7bf8: [<60016cf1>] panic_exit+0x2f/0x45 [ 0.520000] 80fb7c18: [<60043621>] notifier_call_chain+0x5f/0x96 [ 0.520000] 80fb7c68: [<600436f7>] atomic_notifier_call_chain+0xf/0x11 [ 0.520000] 80fb7c78: [<601ae8b0>] panic+0x105/0x1dc [ 0.520000] 80fb7c98: [<601aea27>] printk+0xa0/0xa9 [ 0.520000] 80fb7cf8: [<600b91de>] btrfs_free_path+0x2a/0x2f [ 0.520000] 80fb7d38: [<600dc01a>] btrfs_unlink_inode+0x4b/0x7c [ 0.520000] 80fb7d78: [<600dc10f>] btrfs_unlink+0xc4/0xee [ 0.520000] 80fb7db8: [<6007fccb>] vfs_unlink+0x55/0x8e [ 0.520000] 80fb7de8: [<6007fdcc>] do_unlinkat+0xc8/0x156 [ 0.520000] 80fb7e48: [<6007818e>] sys_newlstat+0x29/0x34 [ 0.520000] 80fb7ec8: [<6007fe91>] sys_unlink+0x11/0x13 [ 0.520000] 80fb7ed8: [<600171f0>] handle_syscall+0x50/0x70 [ 0.520000] 80fb7ef8: [<60021af5>] userspace+0x30f/0x3c9 [ 0.520000] 80fb7fc8: [<600148c9>] fork_handler+0x62/0x69 [ 0.520000]