Here are some of the errors I have collected in my F13 virt machine using brtfs. If there is anything else you need just ask and I will send along. Jul 18 23:13:50 server01 kernel: btrfs csum failed ino 507592 off 389177344 csum 3166690140 private 2898406899 Jul 18 23:13:51 server01 kernel: btrfs csum failed ino 507592 off 389177344 csum 3166690140 private 2898406899 Jul 18 23:13:51 server01 kernel: btrfs csum failed ino 507592 off 389177344 csum 3166690140 private 2898406899 Jul 18 23:13:51 server01 kernel: btrfs csum failed ino 507592 off 389177344 csum 3166690140 private 2898406899 Jul 18 23:13:51 server01 kernel: btrfs csum failed ino 507592 off 389177344 csum 3166690140 private 2898406899 Jul 18 23:13:51 server01 kernel: btrfs csum failed ino 507592 off 389177344 csum 3166690140 private 2898406899 Jul 18 23:13:51 server01 kernel: btrfs csum failed ino 507592 off 389177344 csum 3166690140 private 2898406899 Jul 18 23:13:51 server01 kernel: btrfs csum failed ino 507592 off 389177344 csum 3166690140 private 2898406899 Jul 24 01:41:03 server01 kernel: btrfs csum failed ino 507592 off 389177344 csum 3166690140 private 2898406899 Jul 24 01:41:03 server01 kernel: btrfs csum failed ino 507592 off 389177344 csum 3166690140 private 2898406899 Jul 24 01:41:03 server01 kernel: btrfs csum failed ino 507592 off 389177344 csum 3166690140 private 2898406899 Jul 24 01:41:03 server01 kernel: btrfs csum failed ino 507592 off 389177344 csum 3166690140 private 2898406899 Jul 24 01:41:03 server01 kernel: btrfs csum failed ino 507592 off 389177344 csum 3166690140 private 2898406899 Jul 24 01:41:03 server01 kernel: btrfs csum failed ino 507592 off 389177344 csum 3166690140 private 2898406899 Jul 24 01:42:37 server01 kernel: btrfs csum failed ino 507592 off 389177344 csum 3166690140 private 2898406899 Jul 24 01:42:37 server01 kernel: btrfs csum failed ino 507592 off 389177344 csum 3166690140 private 2898406899 Jul 24 01:42:37 server01 kernel: btrfs csum failed ino 507592 off 389177344 csum 3166690140 private 2898406899 Jul 24 01:42:37 server01 kernel: btrfs csum failed ino 507592 off 389177344 csum 3166690140 private 2898406899 Jul 24 02:05:10 server01 kernel: Call Trace: Jul 24 02:05:10 server01 kernel: [<ffffffffa008bccf>] ? alloc_extent_state+0x16/0x54 [btrfs] Jul 24 02:05:10 server01 kernel: [<ffffffff8106bbd4>] ? ktime_get_ts+0xad/0xba Jul 24 02:05:10 server01 kernel: [<ffffffffa020537c>] ? nfs_wait_bit_uninterruptible+0x0/0xd [nfs] Jul 24 02:05:10 server01 kernel: [<ffffffff81428b04>] io_schedule+0x6e/0xb0 Jul 24 02:05:10 server01 kernel: [<ffffffffa0205385>] nfs_wait_bit_uninterruptible+0x9/0xd [nfs] Jul 24 02:05:10 server01 kernel: [<ffffffff81429040>] __wait_on_bit+0x43/0x76 Jul 24 02:05:10 server01 kernel: [<ffffffff811fe623>] ? __lookup_tag+0xbd/0x12d Jul 24 02:05:10 server01 kernel: [<ffffffff814290dc>] out_of_line_wait_on_bit+0x69/0x74 Jul 24 02:05:10 server01 kernel: [<ffffffffa020537c>] ? nfs_wait_bit_uninterruptible+0x0/0xd [nfs] Jul 24 02:05:10 server01 kernel: [<ffffffff810641f3>] ? wake_bit_function+0x0/0x2e Jul 24 02:05:10 server01 kernel: [<ffffffffa020537a>] nfs_wait_on_request+0x23/0x25 [nfs] Jul 24 02:05:10 server01 kernel: [<ffffffffa020987f>] nfs_sync_mapping_wait+0xf1/0x215 [nfs] Jul 24 02:05:10 server01 kernel: [<ffffffffa0209a35>] nfs_wb_page+0x92/0xc2 [nfs] Jul 24 02:05:10 server01 kernel: [<ffffffffa01fbfdd>] nfs_release_page+0x45/0x5f [nfs] Jul 24 02:05:10 server01 kernel: [<ffffffff810bfe36>] try_to_release_page+0x2f/0x38 Jul 24 02:05:10 server01 kernel: [<ffffffff810cb7b3>] shrink_page_list+0x2fb/0x472 Jul 24 02:05:10 server01 kernel: [<ffffffff810cbcbe>] shrink_inactive_list+0x394/0x675 Jul 24 02:05:10 server01 kernel: [<ffffffff810cc2f7>] shrink_zone+0x358/0x40c Jul 24 02:05:10 server01 kernel: [<ffffffff8106bbd4>] ? ktime_get_ts+0xad/0xba Jul 24 02:05:10 server01 kernel: [<ffffffff810cc5b9>] do_try_to_free_pages+0x20e/0x381 Jul 24 02:05:10 server01 kernel: [<ffffffff810cc8ce>] try_to_free_pages+0x6a/0x6c Jul 24 02:05:10 server01 kernel: [<ffffffff810ca7ae>] ? isolate_pages_global+0x0/0x1f2 Jul 24 02:05:10 server01 kernel: [<ffffffff810c6bc1>] __alloc_pages_nodemask+0x3e6/0x630 Jul 24 02:05:10 server01 kernel: [<ffffffff810ecfd0>] alloc_pages_current+0x90/0x99 Jul 24 02:05:10 server01 kernel: [<ffffffff810c5d00>] __get_free_pages+0x9/0x46 Jul 24 02:05:10 server01 kernel: [<ffffffff810492b1>] copy_process+0xd4/0x1299 Jul 24 02:05:10 server01 kernel: [<ffffffff8104a5dc>] do_fork+0x166/0x362 Jul 24 02:05:10 server01 kernel: [<ffffffff810ff570>] ? fd_install+0x31/0x5e Jul 24 02:05:10 server01 kernel: [<ffffffff81109057>] ? path_put+0x1d/0x22 Jul 24 02:05:10 server01 kernel: [<ffffffff81010c91>] sys_clone+0x23/0x25 Jul 24 02:05:10 server01 kernel: [<ffffffff81009e23>] stub_clone+0x13/0x20 Jul 24 02:05:10 server01 kernel: [<ffffffff81009b02>] ? system_call_fastpath+0x16/0x1b -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html