Opps didn't include the entire thing last time... [ 227.637684] SysRq : Show Blocked State [ 227.639369] task PC stack pid father [ 227.639369] ls D f784b9d4 0 3101 3003 [ 227.639369] f74e4da0 00000082 0000d950 f784b9d4 0000d950 f74e4f2c c1815fa0 00000001 [ 227.639369] f784b9cc ffff9728 c18031b4 c013604c 00000000 00000000 00000000 000000ff [ 227.639369] c1815fa0 0145b000 c18031b4 c015688a c02b8498 f3459bb4 f3459bb4 c01568bd [ 227.639369] Call Trace: [ 227.639369] [<c013604c>] getnstimeofday+0x37/0xbc [ 227.639369] [<c015688a>] sync_page+0x0/0x36 [ 227.639369] [<c02b8498>] io_schedule+0x49/0x80 [ 227.639369] [<c01568bd>] sync_page+0x33/0x36 [ 227.639369] [<c02b85c4>] __wait_on_bit_lock+0x2a/0x52 [ 227.639369] [<c015687c>] __lock_page+0x4e/0x54 [ 227.639369] [<c0131909>] wake_bit_function+0x0/0x3c [ 227.639369] [<f8ce8312>] read_extent_buffer_pages+0x133/0x2f1 [btrfs] [ 227.639369] [<c0117b50>] kmap_atomic_prot+0x9d/0xcc [ 227.639369] [<f8ccd550>] btree_read_extent_buffer_pages+0x39/0x8c [btrfs] [ 227.639369] [<f8ccf219>] btree_get_extent+0x0/0x173 [btrfs] [ 227.639369] [<f8ccd856>] read_tree_block+0x29/0x4c [btrfs] [ 227.639369] [<f8cb9c4a>] read_node_slot+0xa4/0xb2 [btrfs] [ 227.639369] [<f8cbe46f>] btrfs_next_leaf+0x16f/0x27d [btrfs] [ 227.639369] [<f8cc080a>] cache_block_group+0xe9/0x2a0 [btrfs] [ 227.639369] [<c0184354>] alloc_inode+0x12e/0x186 [ 227.639369] [<f8cc1554>] find_free_extent+0x32a/0x7b2 [btrfs] [ 227.639369] [<f8cc1bb1>] __btrfs_reserve_extent+0x1d5/0x370 [btrfs] [ 227.639369] [<f8cc1d8b>] btrfs_reserve_extent+0x3f/0x61 [btrfs] [ 227.639369] [<f8cbddbb>] btrfs_search_slot+0x257/0x79c [btrfs] [ 227.639369] [<c0117c79>] kunmap_atomic+0x67/0x8a [ 227.639369] [<f8ccccff>] btrfs_lookup_inode+0x27/0x88 [btrfs] [ 227.639369] [<f8cd56c0>] btrfs_update_inode+0x3d/0xae [btrfs] [ 227.639369] [<f8cd64e4>] btrfs_dirty_inode+0x3d/0x4a [btrfs] [ 227.639369] [<c018cc33>] __mark_inode_dirty+0x21/0x12a [ 227.639369] [<c0184f0a>] touch_atime+0xc7/0xd1 [ 227.639369] [<c017e8df>] vfs_readdir+0x75/0x8c [ 227.639369] [<c017e6ec>] filldir64+0x0/0xc5 [ 227.639369] [<c017e959>] sys_getdents64+0x63/0xa5 [ 227.639369] [<c0103853>] sysenter_past_esp+0x78/0xb1 [ 227.639369] ======================= [ 227.639369] Sched Debug Version: v0.07, 2.6.26-1-686 #1 [ 227.639369] now at 210726.291061 msecs [ 227.639369] .sysctl_sched_latency : 40.000000 [ 227.639369] .sysctl_sched_min_granularity : 8.000000 [ 227.639369] .sysctl_sched_wakeup_granularity : 20.000000 [ 227.639369] .sysctl_sched_child_runs_first : 0.000001 [ 227.639369] .sysctl_sched_features : 895 [ 227.639369] [ 227.639369] cpu#0, 2200.225 MHz [ 227.639369] .nr_running : 2 [ 227.639369] .load : 2048 [ 227.639369] .nr_switches : 34074 [ 227.639369] .nr_load_updates : 15468 [ 227.639369] .nr_uninterruptible : 4294967191 [ 227.639369] .jiffies : 4294944976 [ 227.639369] .next_balance : 4294.945040 [ 227.639369] .curr->pid : 3060 [ 227.639369] .clock : 210721.964922 [ 227.639369] .cpu_load[0] : 2048 [ 227.639369] .cpu_load[1] : 1024 [ 227.639369] .cpu_load[2] : 519 [ 227.639369] .cpu_load[3] : 299 [ 227.639369] .cpu_load[4] : 214 [ 227.639369] [ 227.639369] cfs_rq[0]: [ 227.639369] .exec_clock : 0.000000 [ 227.639369] .MIN_vruntime : 49281.152431 [ 227.639369] .min_vruntime : 49309.797267 [ 227.639369] .max_vruntime : 49281.152431 [ 227.639369] .spread : 0.000000 [ 227.639369] .spread0 : 0.000000 [ 227.639369] .nr_running : 2 [ 227.639369] .load : 2048 [ 227.639369] .nr_spread_over : 0 [ 227.639369] [ 227.639369] runnable tasks: [ 227.639369] task PID tree-key switches prio exec-runtime sum-exec sum-sleep [ 227.639369] ---------------------------------------------------------------------------------------------------------- [ 227.639369] vmware-guestd 2151 49281.152431 2020 120 0 0 0.000000 0.000000 0.000000 / [ 227.639369] R bash 3060 49295.747111 63 120 0 0 0.000000 0.000000 0.000000 / [ 227.639369] [ 227.639369] cpu#1, 2200.225 MHz [ 227.639369] .nr_running : 2 [ 227.639369] .load : 2048 [ 227.639369] .nr_switches : 26399 [ 227.639369] .nr_load_updates : 14353 [ 227.639369] .nr_uninterruptible : 106 [ 227.639369] .jiffies : 4294944976 [ 227.639369] .next_balance : 4294.945104 [ 227.639369] .curr->pid : 2411 [ 227.639369] .clock : 210728.301926 [ 227.639369] .cpu_load[0] : 2048 [ 227.639369] .cpu_load[1] : 1024 [ 227.639369] .cpu_load[2] : 519 [ 227.639369] .cpu_load[3] : 321 [ 227.639369] .cpu_load[4] : 275 [ 227.639369] [ 227.639369] cfs_rq[1]: [ 227.639369] .exec_clock : 0.000000 [ 227.639369] .MIN_vruntime : 34787.608965 [ 227.639369] .min_vruntime : 34826.431444 [ 227.639369] .max_vruntime : 34787.608965 [ 227.639369] .spread : 0.000000 [ 227.639369] .spread0 : -14483.365823 [ 227.639369] .nr_running : 2 [ 227.639369] .load : 2048 [ 227.639369] .nr_spread_over : 0 [ 227.639369] [ 227.639369] runnable tasks: [ 227.639369] task PID tree-key switches prio exec-runtime sum-exec sum-sleep [ 227.639369] ---------------------------------------------------------------------------------------------------------- [ 227.639369] R syslogd 2411 34791.757624 811 120 0 0 0.000000 0.000000 0.000000 / [ 227.639369] klogd 2420 34787.608965 605 120 0 0 0.000000 0.000000 0.000000 / [ 227.639369] On Thu, Feb 12, 2009 at 09:51:12AM -0500, Chris Mason wrote: > On Thu, 2009-02-12 at 01:31 -0500, Lee Trager wrote: > > While running a few tests with the btrfs sources pulled from > > btrfs-unstable patched with my patch to compile under 2.6.26 I > > encountered a very weird problem. Everything works fine the first time I > > mount the file system (either actual disk or loop back). When I > > unmounted the file system and mounted it again(I'm not doing mount -o > > remount ...) btrfs is completely unusable. When I tried to view some of > > the data which I previously put on the btrfs partition by doing a simple > > ls /mnt/btrfs in bash nothing happens. ls shows nothing, just hangs, and > > I am unable to kill ls. The same thing happens when I try to copy a file > > from my ext3 partition onto the btrfs partition after mounting it for a > > second time. The rest of the system is completely usable and the only > > things that are effects are applications which are trying to read/write > > from the btrfs file system. There are no kernel opps or any other errors > > messages in any of my logs. This happens if I have compression on or > > not. I'd be happy to fix this issue but I don't have a clue about where > > to start looking for what is wrong. > > > > Could someone please help me? > > Thanks for working on this. The first step is to figure out what ls is > doing, and my guess is trying to read block groups. Do a sysrq-w while > it is hung and send the results along. > > -chris > -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
