[<prev] [next>] [<thread-prev] [day] [month] [year] [list]
Message-ID: <20170209021331.GB10568@yexl-desktop>
Date: Thu, 9 Feb 2017 10:13:31 +0800
From: kernel test robot <xiaolong.ye@...el.com>
To: Waiman Long <longman@...hat.com>
Cc: Jeremy Fitzhardinge <jeremy@...p.org>,
Chris Wright <chrisw@...s-sol.org>,
Alok Kataria <akataria@...are.com>,
Rusty Russell <rusty@...tcorp.com.au>,
Thomas Gleixner <tglx@...utronix.de>,
Ingo Molnar <mingo@...hat.com>,
"H. Peter Anvin" <hpa@...or.com>, x86@...nel.org,
virtualization@...ts.linux-foundation.org,
linux-kernel@...r.kernel.org, Waiman Long <longman@...hat.com>,
lkp@...org
Subject: [lkp-robot] [x86/paravirt] b1e955caea:
WARNING:at_kernel/locking/lockdep.c:#trace_hardirqs_off_caller
FYI, we noticed the following commit:
commit: b1e955caea7e3ae340ebd5392a7fe4478f64ce1d ("x86/paravirt: Avoid setting IF flag, if not necessary")
url: https://github.com/0day-ci/linux/commits/Waiman-Long/x86-paravirt-Avoid-setting-IF-flag-if-not-necessary/20170207-051507
in testcase: trinity
with following parameters:
runtime: 300s
test-description: Trinity is a linux system call fuzz tester.
test-url: http://codemonkey.org.uk/projects/trinity/
on test machine: qemu-system-x86_64 -m 320M
caused below changes (please refer to attached dmesg/kmsg for entire log/backtrace):
+----------------------------------------------------------------+------------+------------+
| | 10b9dd5686 | b1e955caea |
+----------------------------------------------------------------+------------+------------+
| boot_successes | 2 | 4 |
| boot_failures | 2 | 4 |
| WARNING:at_arch/x86/include/asm/fpu/internal.h:#fpu__restore | 2 | |
| WARNING:at_kernel/locking/lockdep.c:#trace_hardirqs_off_caller | 0 | 4 |
| calltrace:native_smp_prepare_cpus | 0 | 4 |
+----------------------------------------------------------------+------------+------------+
[ 3.528640] WARNING: CPU: 0 PID: 1 at kernel/locking/lockdep.c:2760 trace_hardirqs_off_caller+0x108/0x120
[ 3.530745] DEBUG_LOCKS_WARN_ON(!irqs_disabled())
[ 3.532013] Modules linked in:
[ 3.533837] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 4.9.0-rc6-00134-gb1e955c #1
[ 3.534833] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.3-20161025_171302-gandalf 04/01/2014
[ 3.537411] ffffc9000000bcc8 ffffffff8144e9e3 ffffffff8113d618 ffffc9000000bd28
[ 3.539432] ffffc9000000bd28 0000000000000000 ffffc9000000bd18 ffffffff810ac222
[ 3.540000] 0000000000000000 00000ac800000001 0000000000000000 00000000ffff8c25
[ 3.540000] Call Trace:
[ 3.540000] [<ffffffff8144e9e3>] dump_stack+0xf1/0x16e
[ 3.540000] [<ffffffff8113d618>] ? trace_hardirqs_off_caller+0x108/0x120
[ 3.540000] [<ffffffff810ac222>] __warn+0x172/0x1a0
[ 3.540000] [<ffffffff810ac361>] warn_slowpath_fmt+0x61/0x80
[ 3.540000] [<ffffffff814644d0>] ? delay_tsc+0x1a0/0x1d0
[ 3.540000] [<ffffffff8113d618>] trace_hardirqs_off_caller+0x108/0x120
[ 3.540000] [<ffffffff8113d64d>] trace_hardirqs_off+0x1d/0x30
[ 3.540000] [<ffffffff82636855>] timer_irq_works+0x9f/0x10f
[ 3.540000] [<ffffffff82636f58>] setup_IO_APIC+0x693/0xee5
[ 3.540000] [<ffffffff81b6cb91>] ? _raw_spin_unlock_irqrestore+0x91/0xf0
[ 3.540000] [<ffffffff81054d43>] ? clear_IO_APIC_pin+0xe3/0x1a0
[ 3.540000] [<ffffffff82634398>] apic_bsp_setup+0x105/0x122
[ 3.540000] [<ffffffff82633422>] native_smp_prepare_cpus+0x4b3/0x55e
[ 3.540000] [<ffffffff8261fbfd>] kernel_init_freeable+0x76/0x2c4
[ 3.540000] [<ffffffff81b54e10>] ? rest_init+0x220/0x220
[ 3.540000] [<ffffffff81b54e26>] kernel_init+0x16/0x1d0
[ 3.540000] [<ffffffff81b6cfaa>] ret_from_fork+0x2a/0x40
[ 3.543531] ---[ end trace 14a0f48288b7a69f ]---
To reproduce:
git clone git://git.kernel.org/pub/scm/linux/kernel/git/wfg/lkp-tests.git
cd lkp-tests
bin/lkp qemu -k <bzImage> job-script # job-script is attached in this email
Thanks,
Xiaolong
View attachment "config-4.9.0-rc6-00134-gb1e955c" of type "text/plain" (99783 bytes)
View attachment "job-script" of type "text/plain" (3646 bytes)
Download attachment "dmesg.xz" of type "application/octet-stream" (12988 bytes)
Powered by blists - more mailing lists