http://bugzilla.kernel.org/show_bug.cgi?id=12579 Summary: ext4 filesystem hang Product: File System Version: 2.5 KernelVersion: 2.6.29-rc2-git1 Platform: All OS/Version: Linux Tree: Mainline Status: NEW Severity: normal Priority: P1 Component: ext4 AssignedTo: fs_ext4@xxxxxxxxxxxxxxxxxxxx ReportedBy: sandeen@xxxxxxxxxx Latest working kernel version: Earliest failing kernel version: 2.6.29 rc2 git1 Distribution: Rawhide Hardware Environment: x86_64 Software Environment: Rawhide Problem Description: Deadlock/hang: SysRq : Show Blocked State task PC stack pid father livecd-creato D ffff880001869f30 3096 11953 3276 ffff880064cc1b18 0000000000000046 0000000000000001 0000000000000002 ffffffff818fe700 ffffffff818fe700 ffff8800836cf000 ffff880010f28000 ffff88006389a390 ffff880010f283b8 0000000000000000 0000000000000046 Call Trace: [<ffffffff81016ec0>] ? read_tsc+0xe/0x24 [<ffffffff81066749>] ? getnstimeofday+0x58/0xb4 [<ffffffff81380f70>] io_schedule+0x63/0xa5 [<ffffffff810a7029>] sync_page+0x49/0x4d [<ffffffff8138136a>] __wait_on_bit_lock+0x45/0x79 [<ffffffff810a6fe0>] ? sync_page+0x0/0x4d [<ffffffff810a6f93>] __lock_page+0x63/0x6a [<ffffffff8105f0c8>] ? wake_bit_function+0x0/0x2a [<ffffffff810ae25b>] write_cache_pages+0x1fc/0x3a4 [<ffffffffa0020231>] ? __mpage_da_writepage+0x0/0x163 [ext4] [<ffffffffa0005329>] ? jbd2_journal_start+0xef/0x119 [jbd2] [<ffffffffa0005329>] ? jbd2_journal_start+0xef/0x119 [jbd2] [<ffffffffa001ffe1>] ext4_da_writepages+0x2c0/0x457 [ext4] [<ffffffff8138164c>] ? mutex_unlock+0x9/0xb [<ffffffff810a8b01>] ? generic_file_aio_write+0x74/0xc5 [<ffffffff8106ebcb>] ? print_lock_contention_bug+0x1e/0x110 [<ffffffffa0021310>] ? ext4_da_get_block_write+0x0/0x130 [ext4] [<ffffffff810ae456>] do_writepages+0x2b/0x3b [<ffffffff810a7b3f>] __filemap_fdatawrite_range+0x51/0x59 [<ffffffff810a889a>] filemap_fdatawrite+0x1a/0x1c [<ffffffff810fbbe5>] vfs_fsync+0x53/0xac [<ffffffff810fbc70>] do_fsync+0x32/0x48 [<ffffffff810fbc94>] sys_fdatasync+0xe/0x12 [<ffffffff810112ba>] system_call_fastpath+0x16/0x1b kjournald2 D ffff88000c475e28 5040 11969 2 ffff88000c475d40 0000000000000046 0000000000000000 0000000000000046 ffffffff818fe700 ffffffff818fe700 0000000000000000 ffff880014882390 ffff88007eb88000 ffff880014882748 000000000c475ce0 0000000000000046 Call Trace: [<ffffffff8105f215>] ? prepare_to_wait+0x1c/0x5e [<ffffffff81383055>] ? _spin_unlock_irqrestore+0x47/0x57 [<ffffffff8106d609>] ? trace_hardirqs_on_caller+0x1f/0x153 [<ffffffff8119a55f>] ? _raw_spin_unlock+0x8e/0x93 [<ffffffffa00057e8>] jbd2_journal_commit_transaction+0x25c/0x159c [jbd2] [<ffffffff81054bf5>] ? lock_timer_base+0x26/0x4a [<ffffffff81383055>] ? _spin_unlock_irqrestore+0x47/0x57 [<ffffffff8106d609>] ? trace_hardirqs_on_caller+0x1f/0x153 [<ffffffff8105f090>] ? autoremove_wake_function+0x0/0x38 [<ffffffff81054c67>] ? try_to_del_timer_sync+0x4e/0x5c [<ffffffffa000a68c>] kjournald2+0x172/0x3a8 [jbd2] [<ffffffff8105f090>] ? autoremove_wake_function+0x0/0x38 [<ffffffffa000a51a>] ? kjournald2+0x0/0x3a8 [jbd2] [<ffffffff8105ed18>] kthread+0x49/0x76 [<ffffffff8101262a>] child_rip+0xa/0x20 [<ffffffff81383002>] ? _spin_unlock_irq+0x2b/0x37 [<ffffffff8106d74a>] ? trace_hardirqs_on+0xd/0xf [<ffffffff81011f3e>] ? restore_args+0x0/0x30 [<ffffffff8105ecaa>] ? kthreadd+0x176/0x19b [<ffffffff8105eccf>] ? kthread+0x0/0x76 [<ffffffff81012620>] ? child_rip+0x0/0x20 pdflush D ffff880001878350 992 12227 2 ffff880050975960 0000000000000046 0000000000000000 ffff8800724d8ea0 ffffffff818fe700 ffffffff818fe700 ffff8800509758e0 ffff880076c48000 ffffffff815334f0 ffff880076c483b8 0000000000000046 0000000000000046 Call Trace: [<ffffffff8105f173>] ? prepare_to_wait_exclusive+0x1c/0x5e [<ffffffff81016ec0>] ? read_tsc+0xe/0x24 [<ffffffff81066749>] ? getnstimeofday+0x58/0xb4 [<ffffffff81380f70>] io_schedule+0x63/0xa5 [<ffffffff810a7029>] sync_page+0x49/0x4d [<ffffffff8138136a>] __wait_on_bit_lock+0x45/0x79 [<ffffffff810a6fe0>] ? sync_page+0x0/0x4d [<ffffffff810a6f93>] __lock_page+0x63/0x6a [<ffffffff8105f0c8>] ? wake_bit_function+0x0/0x2a [<ffffffff810ae25b>] write_cache_pages+0x1fc/0x3a4 [<ffffffffa0020231>] ? __mpage_da_writepage+0x0/0x163 [ext4] [<ffffffffa0005329>] ? jbd2_journal_start+0xef/0x119 [jbd2] [<ffffffffa001ffe1>] ext4_da_writepages+0x2c0/0x457 [ext4] [<ffffffff810ae375>] ? write_cache_pages+0x316/0x3a4 [<ffffffff8106ebcb>] ? print_lock_contention_bug+0x1e/0x110 [<ffffffff8103b23a>] ? account_group_exec_runtime+0x2c/0x44 [<ffffffff8106ebcb>] ? print_lock_contention_bug+0x1e/0x110 [<ffffffffa0021310>] ? ext4_da_get_block_write+0x0/0x130 [ext4] [<ffffffff810ae456>] do_writepages+0x2b/0x3b [<ffffffff810f893e>] __writeback_single_inode+0x187/0x2fc [<ffffffff810f8ee0>] ? generic_sync_sb_inodes+0x275/0x362 [<ffffffff810f8e86>] generic_sync_sb_inodes+0x21b/0x362 [<ffffffff810f91c3>] writeback_inodes+0xa2/0xfa [<ffffffff810aeaaf>] background_writeout+0x92/0xcb [<ffffffff810af0eb>] pdflush+0x14e/0x201 [<ffffffff810aea1d>] ? background_writeout+0x0/0xcb [<ffffffff810aef9d>] ? pdflush+0x0/0x201 [<ffffffff8105ed18>] kthread+0x49/0x76 [<ffffffff8101262a>] child_rip+0xa/0x20 [<ffffffff81383002>] ? _spin_unlock_irq+0x2b/0x37 [<ffffffff8106d74a>] ? trace_hardirqs_on+0xd/0xf [<ffffffff81011f3e>] ? restore_args+0x0/0x30 [<ffffffff8105ecaa>] ? kthreadd+0x176/0x19b [<ffffffff8105eccf>] ? kthread+0x0/0x76 [<ffffffff81012620>] ? child_rip+0x0/0x20 Sched Debug Version: v0.08, 2.6.29-0.53.rc2.git1.fc11.x86_64 #1 now at 8999693.829504 msecs .sysctl_sched_latency : 40.000000 .sysctl_sched_min_granularity : 8.000000 .sysctl_sched_wakeup_granularity : 10.000000 .sysctl_sched_child_runs_first : 0.000001 .sysctl_sched_features : 24191 cpu#0, 2666.818 MHz .nr_running : 0 .load : 0 .nr_switches : 5337240 .nr_load_updates : 3406197 .nr_uninterruptible : -5686 .jiffies : 4303666545 .next_balance : 4303.666549 .curr->pid : 0 .clock : 8999757.002901 .cpu_load[0] : 0 .cpu_load[1] : 0 .cpu_load[2] : 0 .cpu_load[3] : 0 .cpu_load[4] : 0 .yld_exp_empty : 0 .yld_act_empty : 0 .yld_both_empty : 0 .yld_count : 693 .sched_switch : 0 .sched_count : 5466466 .sched_goidle : 1234594 .ttwu_count : 3148627 .ttwu_local : 2728322 .bkl_count : 50886 cfs_rq[0]:/ .exec_clock : 2295440.884259 .MIN_vruntime : 0.000001 .min_vruntime : 42668359.480395 .max_vruntime : 0.000001 .spread : 0.000000 .spread0 : 0.000000 .nr_running : 0 .load : 0 .nr_spread_over : 336023 .shares : 0 rt_rq[0]:/ .rt_nr_running : 0 .rt_throttled : 0 .rt_time : 0.000000 .rt_runtime : 950.000000 runnable tasks: task PID tree-key switches prio exec-runtime sum-exec sum-sleep ---------------------------------------------------------------------------------------------------------- cpu#1, 2666.818 MHz .nr_running : 1 .load : 1024 .nr_switches : 4843840 .nr_load_updates : 3459888 .nr_uninterruptible : 5693 .jiffies : 4303666545 .next_balance : 4303.666801 .curr->pid : 13252 .clock : 8999249.133201 .cpu_load[0] : 1024 .cpu_load[1] : 561 .cpu_load[2] : 448 .cpu_load[3] : 422 .cpu_load[4] : 476 .yld_exp_empty : 0 .yld_act_empty : 0 .yld_both_empty : 0 .yld_count : 1603 .sched_switch : 0 .sched_count : 5039690 .sched_goidle : 1429690 .ttwu_count : 2758073 .ttwu_local : 2199222 .bkl_count : 38801 cfs_rq[1]:/ .exec_clock : 1717848.884015 .MIN_vruntime : 0.000001 .min_vruntime : 50983710.080737 .max_vruntime : 0.000001 .spread : 0.000000 .spread0 : 8315350.600342 .nr_running : 1 .load : 1024 .nr_spread_over : 385373 .shares : 0 rt_rq[1]:/ .rt_nr_running : 0 .rt_throttled : 0 .rt_time : 0.000000 .rt_runtime : 950.000000 runnable tasks: task PID tree-key switches prio exec-runtime sum-exec sum-sleep ---------------------------------------------------------------------------------------------------------- R bash 13252 50983710.080737 245 120 50983710.080737 868.862431 66420.517493 / Steps to reproduce: Run livecd-creator from rawhide to create a desktop spin: livecd-creator --config /usr/share/spin-kickstarts/fedora-livecd-desktop-en_US.ks --cache /mnt/test/livecd/cache --tmpdir /mnt/test/livecd/tmp kickstart file modified to create image on ext4 haven't dug into this yet but wanted to capture it. -- Configure bugmail: http://bugzilla.kernel.org/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are the assignee for the bug, or are watching the assignee. -- To unsubscribe from this list: send the line "unsubscribe linux-ext4" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
