At as 32 bit KVM I run these 2 commands: tfoerste@n22kvm ~ $ mkdir /mnt/ramdisk/btrfs; truncate -s 97M /mnt/ramdisk/btrfs.fs; /sbin/mkfs.btrfs /mnt/ramdisk/btrfs.fs; sudo su -c "mount -o loop,compress=lzo /mnt/ramdisk/btrfs.fs /mnt/ramdisk/btrfs; chmod 777 /mnt/ramdisk/btrfs"
tfoerste@n22kvm ~ $ D=/mnt/ramdisk/btrfs; while [[ : ]]; do cd ~; sudo rm -rf $D/t3; mkdir $D/t3 || break; cd $D/t3; mkdir -p v1/v2; for i in $(seq 0 99); do touch v1/v2/f$i; mkdir v1/v2/d$i; done; trinity -C 4 -N 100000 -V $D/t3/v1/v2; echo; echo " done"; echo; sleep 4; done After a short while the syslog was flooded with : Aug 29 23:08:29 n22kvm kernel: [ 1806.183425] ---[ end trace 8ef9caa1ec878927 ]--- Aug 29 23:08:29 n22kvm kernel: [ 1806.183427] ------------[ cut here ]------------ Aug 29 23:08:29 n22kvm kernel: [ 1806.183429] WARNING: CPU: 1 PID: 24838 at fs/btrfs/extent_io.c:430 insert_state+0x66/0x190() Aug 29 23:08:29 n22kvm kernel: [ 1806.183430] BTRFS: end < start 4094 18446744073709551615 Aug 29 23:08:29 n22kvm kernel: [ 1806.183431] Modules linked in: Aug 29 23:08:29 n22kvm kernel: [ 1806.183432] CPU: 1 PID: 24838 Comm: rm Tainted: G W 3.17.0-rc2 #4 Aug 29 23:08:29 n22kvm kernel: [ 1806.183433] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.7.5-0-ge51488c-20140602_164612-nilsson.home.kraxel.org 04/01/2014 Aug 29 23:08:29 n22kvm kernel: [ 1806.183436] 00000000 00000000 e72c3d24 c16ee73d e72c3d64 e72c3d54 c10468ef c18e5650 Aug 29 23:08:29 n22kvm kernel: [ 1806.183439] e72c3d80 00006106 c18f4d52 000001ae c1326756 c1326756 00000000 e72c3e18 Aug 29 23:08:29 n22kvm kernel: [ 1806.183443] cc223dc0 e72c3d6c c104698e 00000009 e72c3d64 c18e5650 e72c3d80 e72c3db8 Aug 29 23:08:29 n22kvm kernel: [ 1806.183443] Call Trace: Aug 29 23:08:29 n22kvm kernel: [ 1806.183445] [<c16ee73d>] dump_stack+0x41/0x52 Aug 29 23:08:29 n22kvm kernel: [ 1806.183447] [<c10468ef>] warn_slowpath_common+0x7f/0xa0 Aug 29 23:08:29 n22kvm kernel: [ 1806.183449] [<c1326756>] ? insert_state+0x66/0x190 Aug 29 23:08:29 n22kvm kernel: [ 1806.183451] [<c1326756>] ? insert_state+0x66/0x190 Aug 29 23:08:29 n22kvm kernel: [ 1806.183453] [<c104698e>] warn_slowpath_fmt+0x2e/0x30 Aug 29 23:08:29 n22kvm kernel: [ 1806.183454] [<c1326756>] insert_state+0x66/0x190 Aug 29 23:08:29 n22kvm kernel: [ 1806.183457] [<c1326dc9>] __set_extent_bit+0x549/0x5f0 Aug 29 23:08:29 n22kvm kernel: [ 1806.183459] [<c1327e3c>] lock_extent_bits+0x6c/0x200 Aug 29 23:08:29 n22kvm kernel: [ 1806.183461] [<c1313d8e>] ? btrfs_evict_inode+0xee/0x540 Aug 29 23:08:29 n22kvm kernel: [ 1806.183464] [<c1313db8>] btrfs_evict_inode+0x118/0x540 Aug 29 23:08:29 n22kvm kernel: [ 1806.183466] [<c1161877>] evict+0x97/0x150 Aug 29 23:08:29 n22kvm kernel: [ 1806.183467] [<c1161e9a>] iput+0xda/0x170 Aug 29 23:08:29 n22kvm kernel: [ 1806.183469] [<c1154708>] do_unlinkat+0xf8/0x230 Aug 29 23:08:29 n22kvm kernel: [ 1806.183471] [<c10cc62c>] ? __audit_syscall_entry+0x9c/0xf0 Aug 29 23:08:29 n22kvm kernel: [ 1806.183473] [<c11578ce>] SyS_unlinkat+0x1e/0x40 Aug 29 23:08:29 n22kvm kernel: [ 1806.183476] [<c16f656b>] sysenter_do_call+0x12/0x12 Aug 29 23:08:29 n22kvm kernel: [ 1806.183477] ---[ end trace 8ef9caa1ec878928 ]--- Aug 29 23:08:29 n22kvm kernel: [ 1806.183479] ------------[ cut here ]------------ -- Toralf pgp key: 0076 E94E -- 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
