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Message-ID: <CABqxG0dQ3BnzstRVWx3ngbVs_aiowZuJKH3PaBSgDjT9=Bsp3Q@mail.gmail.com> Date: Mon, 5 Sep 2011 11:01:18 +0800 From: Dave Young <hidave.darkstar@...il.com> To: Andrew Morton <akpm@...ux-foundation.org> Cc: Linux Kernel Mailing List <linux-kernel@...r.kernel.org>, Fengguang Wu <wfg@...l.ustc.edu.cn>, linux-usb@...r.kernel.org Subject: Re: [BUG] D state process after unplug and umount usb disk On Mon, Sep 5, 2011 at 9:17 AM, Dave Young <hidave.darkstar@...il.com> wrote: > On Sun, Sep 4, 2011 at 1:50 AM, Andrew Morton <akpm@...ux-foundation.org> wrote: >> (cc linux-usb) >> >> On Sat, 3 Sep 2011 18:31:11 +0800 Dave Young <hidave.darkstar@...il.com> wrote: >> >>> Hi, >>> >>> Known issue? >> >> Not as far as I know. Kernel version? > > 3.1-rc4+ > sorry, I thought dump_stack would print out kernel version 3.0 no such problem, I will try bisecting this issue. > >> >>> Reproduce by: >>> mount /dev/sdb2 /mnt/sdb2 -t ext3 >>> cat /mnt/sdb2/* >/dev/null >>> unplug usb disk >>> umount -f /mnt/sdb2 >>> >>> dmesg as below: >>> >>> [ 1440.567271] SysRq : Show Blocked State >>> [ 1440.567278] task PC stack pid father >>> [ 1440.567312] cat D ffff880037a1e378 4296 2381 2310 0x00000004 >>> [ 1440.567320] ffff88003cca5838 0000000000000046 ffff88003cca57e8 >>> ffffffff00000000 >>> [ 1440.567332] 00000000000134c0 00000000000134c0 00000000000134c0 >>> ffff880037a1e000 >>> [ 1440.567339] 00000000000134c0 ffff88003cca5fd8 00000000000134c0 >>> 00000000000134c0 >>> [ 1440.567347] Call Trace: >>> [ 1440.567357] [<ffffffff810c0468>] ? lock_page+0x2a/0x2a >>> [ 1440.567363] [<ffffffff815e452d>] io_schedule+0x5e/0x79 >>> [ 1440.567368] [<ffffffff810c0471>] sleep_on_page+0x9/0xd >>> [ 1440.567373] [<ffffffff815e4adf>] __wait_on_bit_lock+0x41/0x8a >>> [ 1440.567378] [<ffffffff810c0437>] __lock_page+0x61/0x68 >>> [ 1440.567384] [<ffffffff81058739>] ? autoremove_wake_function+0x34/0x34 >>> [ 1440.567390] [<ffffffff8102f704>] ? should_resched+0x9/0x29 >>> [ 1440.567395] [<ffffffff810c9b0b>] lock_page+0x25/0x29 >>> [ 1440.567400] [<ffffffff810ca1ac>] truncate_inode_pages_range+0x2a6/0x32d >>> [ 1440.567406] [<ffffffff810ca240>] truncate_inode_pages+0xd/0xf >>> [ 1440.567411] [<ffffffff811642cf>] ext3_evict_inode+0xc9/0x1d7 >>> [ 1440.567417] [<ffffffff8111288e>] evict+0xa3/0x15e >>> [ 1440.567422] [<ffffffff81112b34>] dispose_list+0x3d/0x49 >>> [ 1440.567426] [<ffffffff81113475>] evict_inodes+0xf1/0x100 >>> [ 1440.567431] [<ffffffff810ffd21>] generic_shutdown_super+0x47/0xc7 >>> [ 1440.567436] [<ffffffff810ffdc3>] kill_block_super+0x22/0x65 >>> [ 1440.567441] [<ffffffff811000da>] deactivate_locked_super+0x21/0x52 >>> [ 1440.567445] [<ffffffff811009ab>] deactivate_super+0x35/0x39 >>> [ 1440.567452] [<ffffffff81116395>] mntput_no_expire+0xcb/0xd0 >>> [ 1440.567457] [<ffffffff811163bb>] mntput+0x21/0x23 >>> [ 1440.567461] [<ffffffff810ff8e7>] fput+0x196/0x1a5 >>> [ 1440.567467] [<ffffffff810fc7a1>] filp_close+0x6b/0x76 >>> [ 1440.567472] [<ffffffff8103fa8a>] put_files_struct+0x73/0xd1 >>> [ 1440.567477] [<ffffffff8103fb7b>] exit_files+0x46/0x4f >>> [ 1440.567481] [<ffffffff8103fe01>] do_exit+0x27d/0x7b3 >>> [ 1440.567487] [<ffffffff8104d97f>] ? get_signal_to_deliver+0x81/0x4ac >>> [ 1440.567493] [<ffffffff812e5e27>] ? do_raw_spin_lock+0x6b/0x122 >>> [ 1440.567497] [<ffffffff810405c5>] do_group_exit+0x7d/0xa8 >>> [ 1440.567502] [<ffffffff8104dd8b>] get_signal_to_deliver+0x48d/0x4ac >>> [ 1440.567509] [<ffffffff81001ea2>] do_signal+0x39/0x600 >>> [ 1440.567514] [<ffffffff810fdb37>] ? fsnotify_access+0x5d/0x65 >>> [ 1440.567519] [<ffffffff810024a4>] do_notify_resume+0x27/0x69 >>> [ 1440.567524] [<ffffffff812e158e>] ? trace_hardirqs_on_thunk+0x3a/0x3f >>> [ 1440.567529] [<ffffffff815ecd63>] int_signal+0x12/0x17 >>> [ 1440.710163] INFO: task cat:2381 blocked for more than 120 seconds. >>> [ 1440.710170] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" >>> disables this message. >>> [ 1440.710175] cat D ffff880037a1e378 4296 2381 2310 0x00000004 >>> [ 1440.710188] ffff88003cca5838 0000000000000046 ffff88003cca57e8 >>> ffffffff00000000 >>> [ 1440.710201] 00000000000134c0 00000000000134c0 00000000000134c0 >>> ffff880037a1e000 >>> [ 1440.710218] 00000000000134c0 ffff88003cca5fd8 00000000000134c0 >>> 00000000000134c0 >>> [ 1440.710225] Call Trace: >>> [ 1440.710233] [<ffffffff810c0468>] ? lock_page+0x2a/0x2a >>> [ 1440.710239] [<ffffffff815e452d>] io_schedule+0x5e/0x79 >>> [ 1440.710244] [<ffffffff810c0471>] sleep_on_page+0x9/0xd >>> [ 1440.710249] [<ffffffff815e4adf>] __wait_on_bit_lock+0x41/0x8a >>> [ 1440.710253] [<ffffffff810c0437>] __lock_page+0x61/0x68 >>> [ 1440.710259] [<ffffffff81058739>] ? autoremove_wake_function+0x34/0x34 >>> [ 1440.710264] [<ffffffff8102f704>] ? should_resched+0x9/0x29 >>> [ 1440.710269] [<ffffffff810c9b0b>] lock_page+0x25/0x29 >>> [ 1440.710274] [<ffffffff810ca1ac>] truncate_inode_pages_range+0x2a6/0x32d >>> [ 1440.710279] [<ffffffff810ca240>] truncate_inode_pages+0xd/0xf >>> [ 1440.710284] [<ffffffff811642cf>] ext3_evict_inode+0xc9/0x1d7 >>> [ 1440.710289] [<ffffffff8111288e>] evict+0xa3/0x15e >>> [ 1440.710294] [<ffffffff81112b34>] dispose_list+0x3d/0x49 >>> [ 1440.710299] [<ffffffff81113475>] evict_inodes+0xf1/0x100 >>> [ 1440.710303] [<ffffffff810ffd21>] generic_shutdown_super+0x47/0xc7 >>> [ 1440.710308] [<ffffffff810ffdc3>] kill_block_super+0x22/0x65 >>> [ 1440.710312] [<ffffffff811000da>] deactivate_locked_super+0x21/0x52 >>> [ 1440.710316] [<ffffffff811009ab>] deactivate_super+0x35/0x39 >>> [ 1440.710322] [<ffffffff81116395>] mntput_no_expire+0xcb/0xd0 >>> [ 1440.710326] [<ffffffff811163bb>] mntput+0x21/0x23 >>> [ 1440.710330] [<ffffffff810ff8e7>] fput+0x196/0x1a5 >>> [ 1440.710335] [<ffffffff810fc7a1>] filp_close+0x6b/0x76 >>> [ 1440.710342] [<ffffffff8103fa8a>] put_files_struct+0x73/0xd1 >>> [ 1440.710346] [<ffffffff8103fb7b>] exit_files+0x46/0x4f >>> [ 1440.710350] [<ffffffff8103fe01>] do_exit+0x27d/0x7b3 >>> [ 1440.710356] [<ffffffff8104d97f>] ? get_signal_to_deliver+0x81/0x4ac >>> [ 1440.710361] [<ffffffff812e5e27>] ? do_raw_spin_lock+0x6b/0x122 >>> [ 1440.710366] [<ffffffff810405c5>] do_group_exit+0x7d/0xa8 >>> [ 1440.710371] [<ffffffff8104dd8b>] get_signal_to_deliver+0x48d/0x4ac >>> [ 1440.710376] [<ffffffff81001ea2>] do_signal+0x39/0x600 >>> [ 1440.710381] [<ffffffff810fdb37>] ? fsnotify_access+0x5d/0x65 >>> [ 1440.710386] [<ffffffff810024a4>] do_notify_resume+0x27/0x69 >>> [ 1440.710391] [<ffffffff812e158e>] ? trace_hardirqs_on_thunk+0x3a/0x3f >>> [ 1440.710396] [<ffffffff815ecd63>] int_signal+0x12/0x17 >>> [ 1440.710399] INFO: lockdep is turned off. >> >> > > > > -- > Regards > Yang RuiRui > -- Regards Yang RuiRui -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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