From: Roland Dreier <rdreier@cisco.com>
To: linux-kernel@vger.kernel.org
Subject: task blocked in sync_buffer from ext3_free_branches
Date: Tue, 29 Jan 2008 16:28:35 -0800 [thread overview]
Message-ID: <aday7a8cg24.fsf@cisco.com> (raw)
I'm getting the following while building a kernel (with make -j24 on
an 8 CPU system: 4 socket dual-core opteron) with current Linus git
(5b10ca19 is my head). Once this happens the build is hung, although
I can ssh in and get a new shell OK.
Any ideas or suggestions on what would be useful debugging
information?
[ 201.820629] INFO: task mv:7225 blocked for more than 120 seco.
[ 201.824624] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 201.828622] mv D 0000000000000000 0 7225 7055
[ 201.840623] ffff8101c11bdb48 0000000000000086 0000000000000000 ffff810074432360
[ 201.857186] ffff810242822c00 ffff8101c11bdaf8 ffff810074432360 ffffffff80597200
[ 201.876624] ffffffff80597200 ffffffff80593c80 ffffffff80597200 ffff8101c1059120
[ 201.892626] Call Trace:
[ 201.896647] [<ffffffff8029acc3>] sync_buffer+0x0/0x40
[ 201.900628] [<ffffffff804239c9>] io_schedule+0x28/0x33
[ 201.904628] [<ffffffff8029acfe>] sync_buffer+0x3b/0x40
[ 201.908628] [<ffffffff80423c1d>] __wait_on_bit+0x40/0x6e
[ 201.912629] [<ffffffff8029acc3>] sync_buffer+0x0/0x40
[ 201.916628] [<ffffffff80423cb7>] out_of_line_wait_on_bit+0x6c/0x78
[ 201.920631] [<ffffffff8023f9b1>] wake_bit_function+0x0/0x23
[ 201.924630] [<ffffffff8029bfa1>] __bread+0x61/0x76
[ 201.928632] [<ffffffff802c10af>] ext3_free_branches+0x90/0x1b8
[ 201.932631] [<ffffffff802c18f4>] ext3_truncate+0x71d/0x871
[ 201.936632] [<ffffffff802ece75>] start_this_handle+0x294/0x304
[ 201.940631] [<ffffffff802ec7dc>] journal_stop+0x192/0x19e
[ 201.944632] [<ffffffff802ecf80>] journal_start+0x9b/0xd2
[ 201.948632] [<ffffffff802c202f>] ext3_delete_inode+0x7a/0xcf
[ 201.952631] [<ffffffff802c1fb5>] ext3_delete_inode+0x0/0xcf
[ 201.956632] [<ffffffff8028df30>] generic_delete_inode+0xa7/0x11d
[ 201.960631] [<ffffffff8028b36d>] d_kill+0x34/0x55
[ 201.964632] [<ffffffff8028b71a>] dput+0x101/0x10b
[ 201.968633] [<ffffffff8028598b>] sys_renameat+0x18d/0x1fc
[ 201.972634] [<ffffffff80426986>] do_page_fault+0x3d8/0x724
[ 201.976635] [<ffffffff8027f461>] sys_newlstat+0x28/0x31
[ 201.980636] [<ffffffff8020bede>] system_call+0x7e/0x83
next reply other threads:[~2008-01-30 0:29 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-01-30 0:28 Roland Dreier [this message]
2008-01-30 0:49 ` task blocked in sync_buffer from ext3_free_branches Roland Dreier
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