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Date: Wed, 24 May 2017 13:25:45 +0800
From: kernel test robot <xiaolong.ye@...el.com>
To: Thomas Gleixner <tglx@...utronix.de>
Cc: Ingo Molnar <mingo@...nel.org>,
Mark Rutland <mark.rutland@....com>,
Peter Zijlstra <peterz@...radead.org>,
Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
Linus Torvalds <torvalds@...ux-foundation.org>,
Steven Rostedt <rostedt@...dmis.org>,
LKML <linux-kernel@...r.kernel.org>,
"H. Peter Anvin" <hpa@...or.com>,
Thomas Gleixner <tglx@...utronix.de>, tipbuild@...or.com,
lkp@...org
Subject: [lkp-robot] [sched/core] 1c3c5eab17:
BUG:using_smp_processor_id()in_preemptible
FYI, we noticed the following commit:
commit: 1c3c5eab171590f86edd8d31389d61dd1efe3037 ("sched/core: Enable might_sleep() and smp_processor_id() checks early")
https://git.kernel.org/cgit/linux/kernel/git/tip/tip.git sched/core
in testcase: boot
on test machine: qemu-system-x86_64 -enable-kvm -smp 2 -m 512M
caused below changes (please refer to attached dmesg/kmsg for entire log/backtrace):
+------------------------------------------------------------------+------------+------------+
| | 69a78ff226 | 1c3c5eab17 |
+------------------------------------------------------------------+------------+------------+
| boot_successes | 6 | 0 |
| boot_failures | 2 | 8 |
| invoked_oom-killer:gfp_mask=0x | 2 | |
| Mem-Info | 2 | |
| Kernel_panic-not_syncing:Out_of_memory_and_no_killable_processes | 2 | |
| BUG:using_smp_processor_id()in_preemptible | 0 | 8 |
+------------------------------------------------------------------+------------+------------+
[ 15.697784] BUG: using smp_processor_id() in preemptible [00000000] code: swapper/0/1
[ 15.698793] caller is debug_smp_processor_id+0x1c/0x1e
[ 15.699461] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 4.12.0-rc2-00108-g1c3c5ea #1
[ 15.700431] Call Trace:
[ 15.700530] dump_stack+0x110/0x192
[ 15.700530] check_preemption_disabled+0x10c/0x128
[ 15.700530] ? set_debug_rodata+0x25/0x25
[ 15.700530] debug_smp_processor_id+0x1c/0x1e
[ 15.700530] sched_clock_init_late+0x27/0x87
[ 15.700530] ? sched_init+0x4c6/0x4c6
[ 15.700530] do_one_initcall+0xa3/0x1a7
[ 15.700530] ? set_debug_rodata+0x25/0x25
[ 15.700530] kernel_init_freeable+0x25e/0x304
[ 15.700530] ? rest_init+0x29a/0x29a
[ 15.700530] kernel_init+0x14/0x147
[ 15.700530] ? rest_init+0x29a/0x29a
[ 15.700530] ret_from_fork+0x31/0x40
[ 15.707460] sched_clock: Marking stable (15707446101, 0)->(16254936915, -547490814)
[ 15.709183] Loading compiled-in X.509 certificates
[ 15.711197] Key type encrypted registered
[ 15.791159] Unregister pv shared memory for cpu 0
[ 15.794097] CPU 0 is now offline
[ 15.801534] Freeing unused kernel memory: 1232K
[ 15.802178] Write protecting the kernel read-only data: 12288k
[ 15.804954] Freeing unused kernel memory: 832K
[ 15.824888] Freeing unused kernel memory: 1236K
[ 15.836054] random: init: uninitialized urandom read (12 bytes read)
[ 15.947972] random: mountall: uninitialized urandom read (12 bytes read)
[ 15.953829] random: trinity: uninitialized urandom read (4 bytes read)
[ 15.994557] init: Failed to create pty - disabling logging for job
[ 15.995553] init: Temporary process spawn error: No such file or directory
[ 16.016425] init: Failed to create pty - disabling logging for job
[ 16.017422] init: Temporary process spawn error: No such file or directory
[ 16.065743] init: Failed to create pty - disabling logging for job
[ 16.066743] init: Temporary process spawn error: No such file or directory
[ 16.072872] init: Failed to create pty - disabling logging for job
[ 16.073847] init: Temporary process spawn error: No such file or directory
[ 16.166147] init: Failed to create pty - disabling logging for job
[ 16.167149] init: Temporary process spawn error: No such file or directory
[ 16.176152] init: Failed to create pty - disabling logging for job
[ 16.177131] init: Temporary process spawn error: No such file or directory
[ 16.186596] init: Failed to create pty - disabling logging for job
[ 16.187565] init: Temporary process spawn error: No such file or directory
[ 16.198251] udevd[215]: starting version 175
[ 16.211652] init: Failed to create pty - disabling logging for job
[ 16.212630] init: Temporary process spawn error: No such file or directory
[ 16.222026] init: Failed to create pty - disabling logging for job
[ 16.223003] init: Temporary process spawn error: No such file or directory
[ 16.239918] init: Failed to create pty - disabling logging for job
[ 16.241031] init: Temporary process spawn error: No such file or directory
[ 16.285515] init: Failed to create pty - disabling logging for job
[ 16.286509] init: Temporary process spawn error: No such file or directory
[ 16.292670] init: Failed to create pty - disabling logging for job
[ 16.293641] init: Temporary process spawn error: No such file or directory
To reproduce:
git clone https://github.com/01org/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-4.12.0-rc2-00108-g1c3c5ea" of type "text/plain" (106993 bytes)
View attachment "job-script" of type "text/plain" (4044 bytes)
Download attachment "dmesg.xz" of type "application/octet-stream" (11408 bytes)
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