From: Dan Carpenter <dan.carpenter@oracle.com>
To: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
Cc: linux-kernel@vger.kernel.org
Subject: RCU stalls in linux-next
Date: Tue, 13 Mar 2012 16:48:23 +0300 [thread overview]
Message-ID: <20120313134822.GA5158@elgon.mountain> (raw)
I've been getting RCU hangs in linux-next.
Also sometimes, when I'm building my smatch database after a kernel
compile, my system hangs. I'm not certain if the two things are related.
regards,
dan carpenter
Mar 13 14:32:11 elgon kernel: [265405.604199] Pid: 665, comm: kswapd0 Not tainted 3.3.0-rc6-next-20120308+ #141
Mar 13 14:32:11 elgon kernel: [265405.604200] Call Trace:
Mar 13 14:32:11 elgon kernel: [265405.604201] <IRQ> [<ffffffff810ab9da>] __rcu_pending+0x19a/0x4d0
Mar 13 14:32:11 elgon kernel: [265405.604208] [<ffffffff810ac1d0>] rcu_check_callbacks+0xb0/0x1a0
Mar 13 14:32:11 elgon kernel: [265405.604210] [<ffffffff81044293>] update_process_times+0x43/0x80
Mar 13 14:32:11 elgon kernel: [265405.604220] [<ffffffff8107eb0f>] tick_sched_timer+0x5f/0xb0
Mar 13 14:32:11 elgon kernel: [265405.604230] [<ffffffff81058f68>] __run_hrtimer+0x78/0x1d0
Mar 13 14:32:11 elgon kernel: [265405.604232] [<ffffffff8107eab0>] ? tick_nohz_handler+0xf0/0xf0
Mar 13 14:32:11 elgon kernel: [265405.604234] [<ffffffff8103ba91>] ? __do_softirq+0xf1/0x210
Mar 13 14:32:11 elgon kernel: [265405.604235] [<ffffffff81059843>] hrtimer_interrupt+0xe3/0x200
Mar 13 14:32:11 elgon kernel: [265405.604238] [<ffffffff8170c74c>] ? call_softirq+0x1c/0x30
Mar 13 14:32:11 elgon kernel: [265405.604241] [<ffffffff8101f7c4>] smp_apic_timer_interrupt+0x64/0xa0
Mar 13 14:32:11 elgon kernel: [265405.604243] [<ffffffff8170be07>] apic_timer_interrupt+0x67/0x70
Mar 13 14:32:11 elgon kernel: [265405.604244] <EOI> [<ffffffff810d87ac>] ? zone_watermark_ok_safe+0x8c/0x170
Mar 13 14:32:11 elgon kernel: [265405.604248] [<ffffffff810e73c8>] balance_pgdat+0x1a8/0x680
Mar 13 14:32:11 elgon kernel: [265405.604250] [<ffffffff810e7a08>] kswapd+0x168/0x3f0
Mar 13 14:32:11 elgon kernel: [265405.604253] [<ffffffff81702916>] ? __schedule+0x3a6/0x750
Mar 13 14:32:11 elgon kernel: [265405.604255] [<ffffffff810556b0>] ? add_wait_queue+0x60/0x60
Mar 13 14:32:11 elgon kernel: [265405.604256] [<ffffffff810e78a0>] ? balance_pgdat+0x680/0x680
Mar 13 14:32:11 elgon kernel: [265405.604258] [<ffffffff81054c7e>] kthread+0x8e/0xa0
Mar 13 14:32:11 elgon kernel: [265405.604260] [<ffffffff8170c654>] kernel_thread_helper+0x4/0x10
Mar 13 14:32:11 elgon kernel: [265405.604262] [<ffffffff81054bf0>] ? kthread_freezable_should_stop+0x70/0x70
Mar 13 14:32:11 elgon kernel: [265405.604264] [<ffffffff8170c650>] ? gs_change+0xb/0xb
Mar 13 14:35:11 elgon kernel: [265585.490971] Pid: 665, comm: kswapd0 Not tainted 3.3.0-rc6-next-20120308+ #141
Mar 13 14:35:11 elgon kernel: [265585.490972] Call Trace:
Mar 13 14:35:11 elgon kernel: [265585.490973] <IRQ> [<ffffffff810ab9da>] __rcu_pending+0x19a/0x4d0
Mar 13 14:35:11 elgon kernel: [265585.490987] [<ffffffff810ac1d0>] rcu_check_callbacks+0xb0/0x1a0
Mar 13 14:35:11 elgon kernel: [265585.490989] [<ffffffff81044293>] update_process_times+0x43/0x80
Mar 13 14:35:11 elgon kernel: [265585.490991] [<ffffffff8107eb0f>] tick_sched_timer+0x5f/0xb0
Mar 13 14:35:11 elgon kernel: [265585.490994] [<ffffffff81058f68>] __run_hrtimer+0x78/0x1d0
Mar 13 14:35:11 elgon kernel: [265585.490995] [<ffffffff8107eab0>] ? tick_nohz_handler+0xf0/0xf0
Mar 13 14:35:11 elgon kernel: [265585.490997] [<ffffffff8103ba91>] ? __do_softirq+0xf1/0x210
Mar 13 14:35:11 elgon kernel: [265585.490999] [<ffffffff81059843>] hrtimer_interrupt+0xe3/0x200
Mar 13 14:35:11 elgon kernel: [265585.491002] [<ffffffff8170c74c>] ? call_softirq+0x1c/0x30
Mar 13 14:35:11 elgon kernel: [265585.491005] [<ffffffff8101f7c4>] smp_apic_timer_interrupt+0x64/0xa0
Mar 13 14:35:11 elgon kernel: [265585.491007] [<ffffffff8170be07>] apic_timer_interrupt+0x67/0x70
Mar 13 14:35:11 elgon kernel: [265585.491008] <EOI> [<ffffffff810d876d>] ? zone_watermark_ok_safe+0x4d/0x170
Mar 13 14:35:11 elgon kernel: [265585.491012] [<ffffffff810e73c8>] balance_pgdat+0x1a8/0x680
Mar 13 14:35:11 elgon kernel: [265585.491014] [<ffffffff810e7a08>] kswapd+0x168/0x3f0
Mar 13 14:35:11 elgon kernel: [265585.491017] [<ffffffff81702916>] ? __schedule+0x3a6/0x750
Mar 13 14:35:11 elgon kernel: [265585.491019] [<ffffffff810556b0>] ? add_wait_queue+0x60/0x60
Mar 13 14:35:11 elgon kernel: [265585.491021] [<ffffffff810e78a0>] ? balance_pgdat+0x680/0x680
Mar 13 14:35:11 elgon kernel: [265585.491023] [<ffffffff81054c7e>] kthread+0x8e/0xa0
Mar 13 14:35:11 elgon kernel: [265585.491024] [<ffffffff8170c654>] kernel_thread_helper+0x4/0x10
Mar 13 14:35:11 elgon kernel: [265585.491026] [<ffffffff81054bf0>] ? kthread_freezable_should_stop+0x70/0x70
Mar 13 14:35:11 elgon kernel: [265585.491028] [<ffffffff8170c650>] ? gs_change+0xb/0xb
next reply other threads:[~2012-03-13 13:59 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-03-13 13:48 Dan Carpenter [this message]
2012-03-13 14:04 ` RCU stalls in linux-next Dan Carpenter
2012-03-13 14:33 ` Paul E. McKenney
2012-03-13 14:33 ` Paul E. McKenney
2012-03-14 6:59 ` Dan Carpenter
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20120313134822.GA5158@elgon.mountain \
--to=dan.carpenter@oracle.com \
--cc=linux-kernel@vger.kernel.org \
--cc=paulmck@linux.vnet.ibm.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.