From: alex.shi@linaro.org (Alex Shi)
To: linux-arm-kernel@lists.infradead.org
Subject: RCU stall on panda
Date: Mon, 05 May 2014 17:38:08 +0800 [thread overview]
Message-ID: <53675C00.5070202@linaro.org> (raw)
I keep seeing the RCU stall problem on panda board from 3.10 kernel to latest upstream kernel
and google find some one report it before: https://lkml.org/lkml/2012/9/20/519
Is it the hardware issue or a real software problem?
95.519653] INFO: rcu_sched self-detected stall on CPU^M
[ 95.519866] 1: (1 GPs behind) idle=2e7/1/0 softirq=4404/4405 ^M
[ 95.526489] INFO: rcu_sched detected stalls on CPUs/tasks:^M
[ 95.526489] 1: (1 GPs behind) idle=2e7/1/0 softirq=4404/4405 ^M
[ 95.526489] (detected by 0, t=4229 jiffies, g=800, c=799, q=440)^M
[ 95.526519] Task dump for CPU 1:^M
[ 95.526519] swapper/1 R running 0 0 1 0x00000000^M
[ 95.559844] (t=4229 jiffies g=800 c=799 q=440)^M
[ 95.564727] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 3.15.0-rc4 #93^M
[ 95.571502] [<c00133fd>] (unwind_backtrace) from [<c001076d>] (show_stack+0x11/0x14)^M
[ 95.579711] [<c001076d>] (show_stack) from [<c0570465>] (dump_stack+0x75/0x88)^M
[ 95.587371] [<c0570465>] (dump_stack) from [<c0084383>] (rcu_check_callbacks+0x353/0x79c)^M
[ 95.596038] [<c0084383>] (rcu_check_callbacks) from [<c003e99f>] (update_process_times+0x33/0x4c)^M
[ 95.605438] [<c003e99f>] (update_process_times) from [<c008e5a3>] (tick_sched_handle.isra.18+0x1f/0x48)^M
[ 95.615386] [<c008e5a3>] (tick_sched_handle.isra.18) from [<c008e609>] (tick_sched_timer+0x3d/0x5c)^M
[ 95.624969] [<c008e609>] (tick_sched_timer) from [<c0051a23>] (__run_hrtimer+0x67/0x310)^M
[ 95.633544] [<c0051a23>] (__run_hrtimer) from [<c00525fd>] (hrtimer_interrupt+0xe1/0x214)^M
[ 95.642211] [<c00525fd>] (hrtimer_interrupt) from [<c008cecb>] (tick_receive_broadcast+0x1f/0x30)^M
[ 95.651611] [<c008cecb>] (tick_receive_broadcast) from [<c0011e4f>] (handle_IPI+0xb3/0x120)^M
[ 95.660461] [<c0011e4f>] (handle_IPI) from [<c00085e5>] (gic_handle_irq+0x51/0x54)^M
[ 95.668487] [<c00085e5>] (gic_handle_irq) from [<c057603f>] (__irq_svc+0x3f/0x64)^M
[ 95.676391] Exception stack(0xee0dbf10 to 0xee0dbf58)^M
[ 95.681762] bf00: 00000001 00000001 00000000 ee0d8c40^M
[ 95.690429] bf20: 3c6bd296 00000016 3c6f8c43 00000016 eefab540 c08e0c84 00000000 c0fc7114^M
[ 95.699066] bf40: 00000010 ee0dbf58 c006ef4d c0443890 40000033 ffffffff^M
[ 95.706085] [<c057603f>] (__irq_svc) from [<c0443890>] (cpuidle_enter_state+0xc0/0xc4)^M
[ 95.714477] [<c0443890>] (cpuidle_enter_state) from [<c0444d11>] (cpuidle_enter_state_coupled+0xe1/0x290)^M
[ 95.724639] [<c0444d11>] (cpuidle_enter_state_coupled) from [<c0067cd1>] (cpu_startup_entry+0x1a5/0x494)^M
[ 95.734680] [<c0067cd1>] (cpu_startup_entry) from [<80008685>] (0x80008685)^M
[ 95.742095] BUG: soft lockup - CPU#1 stuck for 40s! [swapper/1:0]^M
[ 95.748535] Modules linked in:^M
[ 95.751770] irq event stamp: 128730^M
[ 95.755462] hardirqs last enabled at (128727): [<c044388f>] cpuidle_enter_state+0xbf/0xc4^M
[ 95.764221] hardirqs last disabled at (128728): [<c0576033>] __irq_svc+0x33/0x64^M
[ 95.772064] softirqs last enabled at (128730): [<c00386cd>] irq_enter+0x59/0x60^M
[ 95.779907] softirqs last disabled at (128729): [<c00386ba>] irq_enter+0x46/0x60^M
[ 95.787750] ^M
--
Thanks
Alex
next reply other threads:[~2014-05-05 9:38 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-05-05 9:38 Alex Shi [this message]
-- strict thread matches above, loose matches on Subject: below --
2014-05-05 9:39 RCU stall on panda Alex Shi
2014-05-05 18:06 ` Paul E. McKenney
2014-05-12 21:21 ` Tony Lindgren
2014-05-12 21:21 ` Tony Lindgren
2014-05-13 6:36 ` Alex Shi
2014-05-13 6:36 ` Alex Shi
2014-05-13 15:32 ` Tony Lindgren
2014-05-13 15:32 ` Tony Lindgren
2014-05-15 8:44 ` Alex Shi
2014-05-15 8:44 ` Alex Shi
2014-05-15 9:05 ` Daniel Lezcano
2014-05-15 9:05 ` Daniel Lezcano
2014-05-15 13:26 ` Alex Shi
2014-05-15 13:26 ` Alex Shi
2014-05-15 18:32 ` Tony Lindgren
2014-05-15 18:32 ` Tony Lindgren
2014-05-15 18:36 ` Santosh Shilimkar
2014-05-15 18:36 ` Santosh Shilimkar
2014-05-16 7:41 ` Alex Shi
2014-05-16 7:41 ` Alex Shi
2014-05-16 13:37 ` Santosh Shilimkar
2014-05-16 13:37 ` Santosh Shilimkar
2014-05-22 8:59 ` Alex Shi
2014-05-22 8:59 ` Alex Shi
2014-05-22 13:36 ` Santosh Shilimkar
2014-05-22 13:36 ` Santosh Shilimkar
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=53675C00.5070202@linaro.org \
--to=alex.shi@linaro.org \
--cc=linux-arm-kernel@lists.infradead.org \
/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.