From: Jan Kara <jack@suse.cz>
To: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Cc: linux-fsdevel@vger.kernel.org, linux-mm@kvack.org
Subject: Re: [2.6.32 ubuntu] I/O hang at start_this_handle
Date: Tue, 15 Feb 2011 16:16:33 +0100 [thread overview]
Message-ID: <20110215151633.GG17313@quack.suse.cz> (raw)
In-Reply-To: <201102080526.p185Q0mL034909@www262.sakura.ne.jp>
On Tue 08-02-11 14:26:00, Tetsuo Handa wrote:
> I got below hangup. Is this known problem?
>
> Installing: grub-0.97-173.6 [91%]
>
> # dmesg
> [14280.252030] INFO: task sh:17496 blocked for more than 120 seconds.
> [14280.252228] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
> [14280.252447] sh D 00000000 0 17496 17470 0x00000000
> [14280.252455] f6f8fcf8 00200082 c02084a3 00000000 00000000 c088e4c0 f6d39c24 c088e4c0
> [14280.252468] 15e72f78 00000ccd c088e4c0 c088e4c0 f6d39c24 c088e4c0 c088e4c0 f40c2a80
> [14280.252480] 15e50702 00000ccd f6d39980 f4d2b63c f4d2b600 00000000 f6f8fd54 c02c7ead
> [14280.252492] Call Trace:
> [14280.252503] [<c02084a3>] ? __slab_alloc+0x163/0x220
> [14280.252512] [<c02c7ead>] start_this_handle+0x22d/0x390
> [14280.252519] [<c016ff90>] ? autoremove_wake_function+0x0/0x50
> [14280.252525] [<c02c8188>] journal_start+0x98/0xd0
> [14280.252532] [<c027b06e>] ext3_journal_start_sb+0x2e/0x50
> [14280.252538] [<c0272f02>] ext3_dirty_inode+0x32/0x80
> [14280.252545] [<c0231c71>] __mark_inode_dirty+0x31/0x180
> [14280.252552] [<c022900a>] inode_setattr+0xaa/0x170
> [14280.252557] [<c0273091>] ext3_setattr+0x141/0x1f0
> [14280.252563] [<c0229213>] notify_change+0x143/0x340
> [14280.252571] [<c02122d2>] do_truncate+0x62/0x90
> [14280.252578] [<c03018ea>] ? security_path_truncate+0x3a/0x50
> [14280.252584] [<c021c710>] may_open+0x1d0/0x200
> [14280.252591] [<c021f9fc>] do_filp_open+0xfc/0x990
> [14280.252597] [<c01efb74>] ? do_wp_page+0x104/0x910
> [14280.252605] [<c02111d5>] do_sys_open+0x55/0x160
> [14280.252611] [<c021134e>] sys_open+0x2e/0x40
> [14280.252617] [<c01096c3>] sysenter_do_call+0x12/0x28
Ext3 looks innocent here. That is a standard call path for open(..,
O_TRUNC). But apparently something broke in SLUB allocator. Adding proper
list to CC...
> [14400.252032] INFO: task sh:17496 blocked for more than 120 seconds.
> [14400.252201] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
> [14400.252429] sh D 00000000 0 17496 17470 0x00000000
> [14400.252437] f6f8fcf8 00200082 c02084a3 00000000 00000000 c088e4c0 f6d39c24 c088e4c0
> [14400.252450] 15e72f78 00000ccd c088e4c0 c088e4c0 f6d39c24 c088e4c0 c088e4c0 f40c2a80
> [14400.252461] 15e50702 00000ccd f6d39980 f4d2b63c f4d2b600 00000000 f6f8fd54 c02c7ead
> [14400.252473] Call Trace:
> [14400.252484] [<c02084a3>] ? __slab_alloc+0x163/0x220
> [14400.252492] [<c02c7ead>] start_this_handle+0x22d/0x390
> [14400.252500] [<c016ff90>] ? autoremove_wake_function+0x0/0x50
> [14400.252506] [<c02c8188>] journal_start+0x98/0xd0
> [14400.252512] [<c027b06e>] ext3_journal_start_sb+0x2e/0x50
> [14400.252518] [<c0272f02>] ext3_dirty_inode+0x32/0x80
> [14400.252525] [<c0231c71>] __mark_inode_dirty+0x31/0x180
> [14400.252532] [<c022900a>] inode_setattr+0xaa/0x170
> [14400.252537] [<c0273091>] ext3_setattr+0x141/0x1f0
> [14400.252543] [<c0229213>] notify_change+0x143/0x340
> [14400.252550] [<c02122d2>] do_truncate+0x62/0x90
> [14400.252557] [<c03018ea>] ? security_path_truncate+0x3a/0x50
> [14400.252564] [<c021c710>] may_open+0x1d0/0x200
> [14400.252570] [<c021f9fc>] do_filp_open+0xfc/0x990
> [14400.252577] [<c01efb74>] ? do_wp_page+0x104/0x910
> [14400.252584] [<c02111d5>] do_sys_open+0x55/0x160
> [14400.252590] [<c021134e>] sys_open+0x2e/0x40
> [14400.252596] [<c01096c3>] sysenter_do_call+0x12/0x28
>
> CPU usage is almost 0%. Below is some sysrq info.
>
> [15460.045190] SysRq : Show Blocked State
> [15460.053012] task PC stack pid father
> [15460.053012] sh D 00000000 0 17496 17470 0x00000000
> [15460.053012] f6f8fcf8 00200082 c02084a3 00000000 00000000 c088e4c0 f6d39c24 c088e4c0
> [15460.053012] 15e72f78 00000ccd c088e4c0 c088e4c0 f6d39c24 c088e4c0 c088e4c0 f40c2a80
> [15460.053012] 15e50702 00000ccd f6d39980 f4d2b63c f4d2b600 00000000 f6f8fd54 c02c7ead
> [15460.053012] Call Trace:
> [15460.053012] [<c02084a3>] ? __slab_alloc+0x163/0x220
> [15460.053012] [<c02c7ead>] start_this_handle+0x22d/0x390
> [15460.053012] [<c016ff90>] ? autoremove_wake_function+0x0/0x50
> [15460.053012] [<c02c8188>] journal_start+0x98/0xd0
> [15460.053012] [<c027b06e>] ext3_journal_start_sb+0x2e/0x50
> [15460.053012] [<c0272f02>] ext3_dirty_inode+0x32/0x80
> [15460.053012] [<c0231c71>] __mark_inode_dirty+0x31/0x180
> [15460.053012] [<c022900a>] inode_setattr+0xaa/0x170
> [15460.053012] [<c0273091>] ext3_setattr+0x141/0x1f0
> [15460.053012] [<c0229213>] notify_change+0x143/0x340
> [15460.053012] [<c02122d2>] do_truncate+0x62/0x90
> [15460.053012] [<c03018ea>] ? security_path_truncate+0x3a/0x50
> [15460.053012] [<c021c710>] may_open+0x1d0/0x200
> [15460.053012] [<c021f9fc>] do_filp_open+0xfc/0x990
> [15460.053012] [<c01efb74>] ? do_wp_page+0x104/0x910
> [15460.053012] [<c02111d5>] do_sys_open+0x55/0x160
> [15460.053012] [<c021134e>] sys_open+0x2e/0x40
> [15460.053012] [<c01096c3>] sysenter_do_call+0x12/0x28
> [15460.053012] Sched Debug Version: v0.09, 2.6.32-28-generic-pae #55-Ubuntu
> [15460.053012] now at 15460053.551044 msecs
> [15460.053012] .jiffies : 3790013
> [15460.053012] .sysctl_sched_latency : 10.000000
> [15460.053012] .sysctl_sched_min_granularity : 2.000000
> [15460.053012] .sysctl_sched_wakeup_granularity : 2.000000
> [15460.053012] .sysctl_sched_child_runs_first : 0.000000
> [15460.053012] .sysctl_sched_features : 15834235
> [15460.053012]
> [15460.053012] cpu#0, 2194.944 MHz
> [15460.053012] .nr_running : 1
> [15460.053012] .load : 1024
> [15460.053012] .nr_switches : 1773885
> [15460.053012] .nr_load_updates : 494855
> [15460.053012] .nr_uninterruptible : 1
> [15460.053012] .next_balance : 3.789648
> [15460.053012] .curr->pid : 17674
> [15460.053012] .clock : 15460045.031387
> [15460.053012] .cpu_load[0] : 0
> [15460.053012] .cpu_load[1] : 0
> [15460.053012] .cpu_load[2] : 0
> [15460.053012] .cpu_load[3] : 0
> [15460.053012] .cpu_load[4] : 0
> [15460.053012] .yld_count : 1006
> [15460.053012] .sched_switch : 0
> [15460.053012] .sched_count : 1819077
> [15460.053012] .sched_goidle : 758147
> [15460.053012] .avg_idle : 1000000
> [15460.053012] .ttwu_count : 922833
> [15460.053012] .ttwu_local : 721258
> [15460.053012] .bkl_count : 113
> [15460.053012]
> [15460.053012] cfs_rq[0]:/
> [15460.053012] .exec_clock : 565672.449837
> [15460.053012] .MIN_vruntime : 0.000001
> [15460.053012] .min_vruntime : 684253.393210
> [15460.053012] .max_vruntime : 0.000001
> [15460.053012] .spread : 0.000000
> [15460.053012] .spread0 : 0.000000
> [15460.053012] .nr_running : 1
> [15460.053012] .load : 1024
> [15460.053012] .nr_spread_over : 2
> [15460.053012] .shares : 0
> [15460.053012]
> [15460.053012] rt_rq[0]:/
> [15460.053012] .rt_nr_running : 0
> [15460.053012] .rt_throttled : 0
> [15460.053012] .rt_time : 0.000000
> [15460.053012] .rt_runtime : 950.000000
> [15460.053012]
> [15460.053012] runnable tasks:
> [15460.053012] task PID tree-key switches prio exec-runtime sum-exec sum-sleep
> [15460.053012] ----------------------------------------------------------------------------------------------------------
> [15460.053012] R bash 17674 684253.393210 448 120 684253.393210 168.337420 700111.995795 /
> [15460.053012]
> [15460.053012] cpu#1, 2194.944 MHz
> [15460.053012] .nr_running : 0
> [15460.053012] .load : 0
> [15460.053012] .nr_switches : 2781711
> [15460.053012] .nr_load_updates : 585052
> [15460.053012] .nr_uninterruptible : 0
> [15460.053012] .next_balance : 3.790015
> [15460.053012] .curr->pid : 0
> [15460.053012] .clock : 15460053.425771
> [15460.053012] .cpu_load[0] : 0
> [15460.053012] .cpu_load[1] : 0
> [15460.053012] .cpu_load[2] : 0
> [15460.053012] .cpu_load[3] : 0
> [15460.053012] .cpu_load[4] : 0
> [15460.053012] .yld_count : 971
> [15460.053012] .sched_switch : 0
> [15460.053012] .sched_count : 2828076
> [15460.053012] .sched_goidle : 1319436
> [15460.053012] .avg_idle : 875273
> [15460.053012] .ttwu_count : 1398861
> [15460.053012] .ttwu_local : 1163642
> [15460.053012] .bkl_count : 79
> [15460.053012]
> [15460.053012] cfs_rq[1]:/
> [15460.053012] .exec_clock : 415244.483606
> [15460.053012] .MIN_vruntime : 0.000001
> [15460.053012] .min_vruntime : 507085.016198
> [15460.053012] .max_vruntime : 0.000001
> [15460.053012] .spread : 0.000000
> [15460.053012] .spread0 : -177168.377012
> [15460.053012] .nr_running : 0
> [15460.053012] .load : 0
> [15460.053012] .nr_spread_over : 1
> [15460.053012] .shares : 0
> [15460.053012]
> [15460.053012] rt_rq[1]:/
> [15460.053012] .rt_nr_running : 0
> [15460.053012] .rt_throttled : 0
> [15460.053012] .rt_time : 0.000000
> [15460.053012] .rt_runtime : 950.000000
> [15460.053012]
> [15460.053012] runnable tasks:
> [15460.053012] task PID tree-key switches prio exec-runtime sum-exec sum-sleep
> [15460.053012] ----------------------------------------------------------------------------------------------------------
> [15460.053012]
>
> [15492.337181] SysRq : Show clockevent devices & pending hrtimers (no others)
> [15492.341016] Timer List Version: v0.5
> [15492.341016] HRTIMER_MAX_CLOCK_BASES: 2
> [15492.341016] now at 15492345437343 nsecs
> [15492.341016]
> [15492.341016] cpu: 0
> [15492.341016] clock 0:
> [15492.341016] .base: c70049a4
> [15492.341016] .index: 0
> [15492.341016] .resolution: 1 nsecs
> [15492.341016] .get_time: ktime_get_real
> [15492.341016] .offset: 1297125938059809325 nsecs
> [15492.341016] active timers:
> [15492.341016] clock 1:
> [15492.341016] .base: c70049d0
> [15492.341016] .index: 1
> [15492.341016] .resolution: 1 nsecs
> [15492.341016] .get_time: ktime_get
> [15492.341016] .offset: 0 nsecs
> [15492.341016] active timers:
> [15492.341016] #0: <c7004a60>, tick_sched_timer, S:01, hrtimer_start_range_ns, swapper/0
> [15492.341016] # expires at 15492340000000-15492340000000 nsecs [in -5437343 to -5437343 nsecs]
> [15492.341016] #1: <f5105ad8>, hrtimer_wakeup, S:01, hrtimer_start_range_ns, zypper/28960
> [15492.341016] # expires at 15497197764475-15497202764474 nsecs [in 4852327132 to 4857327131 nsecs]
> [15492.341016] #2: <f6e09f40>, hrtimer_wakeup, S:01, hrtimer_start_range_ns, cron/884
> [15492.341016] # expires at 15503084128363-15503084178363 nsecs [in 10738691020 to 10738741020 nsecs]
> [15492.341016] #3: <f4f19ad8>, hrtimer_wakeup, S:01, hrtimer_start_range_ns, winbindd/917
> [15492.341016] # expires at 15510366264172-15510396264171 nsecs [in 18020826829 to 18050826828 nsecs]
> [15492.341016] #4: <f52bfef4>, hrtimer_wakeup, S:01, hrtimer_start_range_ns, rsyslogd/17711
> [15492.341016] # expires at 15520060947543-15520060997543 nsecs [in 27715510200 to 27715560200 nsecs]
> [15492.341016] #5: <f4f37f40>, hrtimer_wakeup, S:01, hrtimer_start_range_ns, atd/885
> [15492.341016] # expires at 18011893116083-18011893166083 nsecs [in 2519547678740 to 2519547728740 nsecs]
> [15492.341016] #6: <f4cc3ad8>, hrtimer_wakeup, S:01, hrtimer_start_range_ns, smbd/836
> [15492.341016] # expires at 20009829520272-20009929520272 nsecs [in 4517484082929 to 4517584082929 nsecs]
> [15492.341016] .expires_next : 15492340000000 nsecs
> [15492.341016] .hres_active : 1
> [15492.341016] .nr_events : 641821
> [15492.341016] .nr_retries : 26332
> [15492.341016] .nr_hangs : 0
> [15492.341016] .max_hang_time : 0 nsecs
> [15492.341016] .nohz_mode : 2
> [15492.341016] .idle_tick : 15492236000000 nsecs
> [15492.341016] .tick_stopped : 0
> [15492.341016] .idle_jiffies : 3798058
> [15492.341016] .idle_calls : 1096583
> [15492.341016] .idle_sleeps : 330634
> [15492.341016] .idle_entrytime : 15492232028728 nsecs
> [15492.341016] .idle_waketime : 15492232000843 nsecs
> [15492.341016] .idle_exittime : 15492337016034 nsecs
> [15492.341016] .idle_sleeptime : 14901605968046 nsecs
> [15492.341016] .last_jiffies : 3798058
> [15492.341016] .next_jiffies : 3798120
> [15492.341016] .idle_expires : 15492480000000 nsecs
> [15492.341016] jiffies: 3798086
> [15492.341016]
> [15492.341016] cpu: 1
> [15492.341016] clock 0:
> [15492.341016] .base: c71049a4
> [15492.341016] .index: 0
> [15492.341016] .resolution: 1 nsecs
> [15492.341016] .get_time: ktime_get_real
> [15492.341016] .offset: 1297125938059809325 nsecs
> [15492.341016] active timers:
> [15492.341016] clock 1:
> [15492.341016] .base: c71049d0
> [15492.341016] .index: 1
> [15492.341016] .resolution: 1 nsecs
> [15492.341016] .get_time: ktime_get
> [15492.341016] .offset: 0 nsecs
> [15492.341016] active timers:
> [15492.341016] #0: <c7104a60>, tick_sched_timer, S:01, hrtimer_start_range_ns, swapper/0
> [15492.341016] # expires at 15492349000000-15492349000000 nsecs [in 3562657 to 3562657 nsecs]
> [15492.341016] #1: <f4c8bad8>, hrtimer_wakeup, S:01, hrtimer_start_range_ns, apache2/947
> [15492.341016] # expires at 15492556578781-15492557578780 nsecs [in 211141438 to 212141437 nsecs]
> [15492.341016] #2: <f5359ad8>, hrtimer_wakeup, S:01, hrtimer_start_range_ns, smbd/1140
> [15492.341016] # expires at 15496084626915-15496121504563 nsecs [in 3739189572 to 3776067220 nsecs]
> [15492.341016] #3: <f4f3bad8>, hrtimer_wakeup, S:01, hrtimer_start_range_ns, rsyslogd/806
> [15492.341016] # expires at 15507004032991-15507034032990 nsecs [in 14658595648 to 14688595647 nsecs]
> [15492.341016] #4: <f4d29ad8>, hrtimer_wakeup, S:01, hrtimer_start_range_ns, smbd/796
> [15492.341016] # expires at 20130936331799-20131036331799 nsecs [in 4638590894456 to 4638690894456 nsecs]
> [15492.341016] .expires_next : 15492349000000 nsecs
> [15492.341016] .hres_active : 1
> [15492.341016] .nr_events : 793193
> [15492.341016] .nr_retries : 26862
> [15492.341016] .nr_hangs : 0
> [15492.341016] .max_hang_time : 0 nsecs
> [15492.341016] .nohz_mode : 2
> [15492.341016] .idle_tick : 15492253000000 nsecs
> [15492.341016] .tick_stopped : 0
> [15492.341016] .idle_jiffies : 3798063
> [15492.341016] .idle_calls : 2433134
> [15492.341016] .idle_sleeps : 913836
> [15492.341016] .idle_entrytime : 15492345003341 nsecs
> [15492.341016] .idle_waketime : 15492332763723 nsecs
> [15492.341016] .idle_exittime : 15492332774252 nsecs
> [15492.341016] .idle_sleeptime : 15052885462990 nsecs
> [15492.341016] .last_jiffies : 3798086
> [15492.341016] .next_jiffies : 3798097
> [15492.341016] .idle_expires : 15492444000000 nsecs
> [15492.341016] jiffies: 3798086
> [15492.341016]
> [15492.341016]
> [15492.341016] Tick Device: mode: 1
> [15492.341016] Broadcast device
> [15492.341016] Clock Event Device: hpet
> [15492.341016] max_delta_ns: 2147483647
> [15492.341016] min_delta_ns: 5000
> [15492.341016] mult: 61496114
> [15492.341016] shift: 32
> [15492.341016] mode: 3
> [15492.341016] next_event: 9223372036854775807 nsecs
> [15492.341016] set_next_event: hpet_legacy_next_event
> [15492.341016] set_mode: hpet_legacy_set_mode
> [15492.341016] event_handler: tick_handle_oneshot_broadcast
> [15492.341016] tick_broadcast_mask: 00000000
> [15492.341016] tick_broadcast_oneshot_mask: 00000000
> [15492.341016]
> [15492.341016]
> [15492.341016] Tick Device: mode: 1
> [15492.341016] Per CPU device: 0
> [15492.341016] Clock Event Device: lapic
> [15492.341016] max_delta_ns: 672820093
> [15492.341016] min_delta_ns: 1203
> [15492.341016] mult: 53548925
> [15492.341016] shift: 32
> [15492.341016] mode: 3
> [15492.341016] next_event: 15492340000000 nsecs
> [15492.341016] set_next_event: lapic_next_event
> [15492.341016] set_mode: lapic_timer_setup
> [15492.341016] event_handler: hrtimer_interrupt
> [15492.341016]
> [15492.341016] Tick Device: mode: 1
> [15492.341016] Per CPU device: 1
> [15492.341016] Clock Event Device: lapic
> [15492.341016] max_delta_ns: 672820093
> [15492.341016] min_delta_ns: 1203
> [15492.341016] mult: 53548925
> [15492.341016] shift: 32
> [15492.341016] mode: 3
> [15492.341016] next_event: 15492349000000 nsecs
> [15492.341016] set_next_event: lapic_next_event
> [15492.341016] set_mode: lapic_timer_setup
> [15492.341016] event_handler: hrtimer_interrupt
> [15492.341016]
>
> [15676.361191] SysRq : Show Memory
> [15676.365011] Mem-Info:
> [15676.365011] DMA per-cpu:
> [15676.365011] CPU 0: hi: 0, btch: 1 usd: 0
> [15676.365011] CPU 1: hi: 0, btch: 1 usd: 0
> [15676.365011] Normal per-cpu:
> [15676.365011] CPU 0: hi: 186, btch: 31 usd: 73
> [15676.365011] CPU 1: hi: 186, btch: 31 usd: 176
> [15676.365011] HighMem per-cpu:
> [15676.365011] CPU 0: hi: 186, btch: 31 usd: 76
> [15676.365011] CPU 1: hi: 186, btch: 31 usd: 99
> [15676.365011] active_anon:5431 inactive_anon:7392 isolated_anon:0
> [15676.365011] active_file:199148 inactive_file:241880 isolated_file:0
> [15676.365011] unevictable:11 dirty:0 writeback:0 unstable:0
> [15676.365011] free:13441 slab_reclaimable:21971 slab_unreclaimable:2072
> [15676.365011] mapped:4822 shmem:254 pagetables:345 bounce:0
> [15676.365011] DMA free:8100kB min:64kB low:80kB high:96kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:20kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:15804kB mlocked:0kB dirty:0kB writeback:0kB mapped:0kB shmem:0kB slab_reclaimable:0kB slab_unreclaimable:8kB kernel_stack:0kB pagetables:0kB unstable:0kB bounce:0kB writeback_tmp:0kB pages_scanned:0 all_unreclaimable? yes
> [15676.365011] lowmem_reserve[]: 0 867 2005 2005
> [15676.365011] Normal free:42564kB min:3732kB low:4664kB high:5596kB active_anon:0kB inactive_anon:488kB active_file:294868kB inactive_file:354120kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:887976kB mlocked:0kB dirty:0kB writeback:0kB mapped:720kB shmem:0kB slab_reclaimable:87884kB slab_unreclaimable:8280kB kernel_stack:1248kB pagetables:28kB unstable:0kB bounce:0kB writeback_tmp:0kB pages_scanned:0 all_unreclaimable? no
> [15676.365011] lowmem_reserve[]: 0 0 9106 9106
> [15676.365011] HighMem free:3100kB min:512kB low:1736kB high:2960kB active_anon:21724kB inactive_anon:29080kB active_file:501724kB inactive_file:613380kB unevictable:44kB isolated(anon):0kB isolated(file):0kB present:1165660kB mlocked:0kB dirty:0kB writeback:0kB mapped:18568kB shmem:1016kB slab_reclaimable:0kB slab_unreclaimable:0kB kernel_stack:0kB pagetables:1352kB unstable:0kB bounce:0kB writeback_tmp:0kB pages_scanned:0 all_unreclaimable? no
> [15676.365011] lowmem_reserve[]: 0 0 0 0
> [15676.365011] DMA: 1*4kB 6*8kB 5*16kB 5*32kB 4*64kB 3*128kB 2*256kB 3*512kB 1*1024kB 2*2048kB 0*4096kB = 8100kB
> [15676.365011] Normal: 535*4kB 303*8kB 563*16kB 326*32kB 116*64kB 33*128kB 3*256kB 0*512kB 0*1024kB 1*2048kB 1*4096kB = 42564kB
> [15676.365011] HighMem: 19*4kB 26*8kB 30*16kB 17*32kB 10*64kB 5*128kB 2*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 3100kB
> [15676.365011] 441294 total pagecache pages
> [15676.365011] 0 pages in swap cache
> [15676.365011] Swap cache stats: add 0, delete 0, find 0/0
> [15676.365011] Free swap = 0kB
> [15676.365011] Total swap = 0kB
> [15676.365011] 521532 pages RAM
> [15676.365011] 293710 pages HighMem
> [15676.365011] 25301 pages reserved
> [15676.365011] 410815 pages shared
> [15676.365011] 81402 pages non-shared
>
> # cat /proc/17496/status
> Name: sh
> State: D (disk sleep)
> Tgid: 17496
> Pid: 17496
> PPid: 17470
> TracerPid: 0
> Uid: 0 0 0 0
> Gid: 0 0 0 0
> FDSize: 256
> Groups: 0
> VmPeak: 3008 kB
> VmSize: 3008 kB
> VmLck: 0 kB
> VmHWM: 400 kB
> VmRSS: 400 kB
> VmData: 196 kB
> VmStk: 88 kB
> VmExe: 580 kB
> VmLib: 2064 kB
> VmPTE: 20 kB
> Threads: 1
> SigQ: 2/16382
> SigPnd: 0000000000000000
> ShdPnd: 0000000000000002
> SigBlk: 0000000000000000
> SigIgn: 0000000000000000
> SigCgt: 0000000000010002
> CapInh: 0000000000000000
> CapPrm: ffffffffffffffff
> CapEff: ffffffffffffffff
> CapBnd: ffffffffffffffff
> Cpus_allowed: 3
> Cpus_allowed_list: 0-1
> Mems_allowed: 1
> Mems_allowed_list: 0
> voluntary_ctxt_switches: 1
> nonvoluntary_ctxt_switches: 0
>
> # cat /proc/version
> Linux version 2.6.32-28-generic-pae (buildd@palmer) (gcc version 4.4.3 (Ubuntu 4.4.3-4ubuntu5) ) #55-Ubuntu SMP Mon Jan 10 22:34:08 UTC 2011
>
> # cat /proc/cmdline
> BOOT_IMAGE=/boot/vmlinuz-2.6.32-28-generic-pae root=UUID=59b657e8-f757-4b9b-807f-56541a7cefa6 ro crashkernel=384M-2G:64M,2G-:128M quiet splash
Honza
--
Jan Kara <jack@suse.cz>
SUSE Labs, CR
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next prev parent reply other threads:[~2011-02-15 15:16 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-02-08 5:26 [2.6.32 ubuntu] I/O hang at start_this_handle Tetsuo Handa
2011-02-15 15:16 ` Jan Kara [this message]
2011-02-15 21:52 ` Tetsuo Handa
2011-02-16 15:53 ` Jan Kara
2011-02-17 8:13 ` Tetsuo Handa
2011-02-17 15:38 ` Jan Kara
2011-04-08 14:38 ` Tetsuo Handa
2011-04-08 18:29 ` Jan Kara
2011-04-09 2:21 ` Tetsuo Handa
2011-04-12 19:50 ` Jan Kara
2011-04-12 22:00 ` Tetsuo Handa
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