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Date: Thu, 2 Nov 2017 21:05:44 +0800
From: kernel test robot <xiaolong.ye@...el.com>
To: Masami Hiramatsu <mhiramat@...nel.org>
Cc: Ingo Molnar <mingo@...nel.org>, Alexei Starovoitov <ast@...com>,
Alexei Starovoitov <ast@...nel.org>,
Ananth N Mavinakayanahalli <ananth@...ux.vnet.ibm.com>,
Linus Torvalds <torvalds@...ux-foundation.org>,
"Paul E . McKenney" <paulmck@...ux.vnet.ibm.com>,
Peter Zijlstra <peterz@...radead.org>,
Steven Rostedt <rostedt@...dmis.org>,
Thomas Gleixner <tglx@...utronix.de>,
LKML <linux-kernel@...r.kernel.org>, lkp@...org
Subject: [lkp-robot] [kprobes/x86] b664d57f39:
BUG:using_smp_processor_id()in_preemptible
FYI, we noticed the following commit (built with gcc-4.9):
commit: b664d57f39d01e775204d4f1a7e2f8bda77bc549 ("kprobes/x86: Remove IRQ disabling from jprobe handlers")
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git master
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):
+--------------------------------------------+------------+------------+
| | ee213fc72f | b664d57f39 |
+--------------------------------------------+------------+------------+
| boot_successes | 82 | 2 |
| boot_failures | 0 | 80 |
| BUG:using_smp_processor_id()in_preemptible | 0 | 80 |
| int3:#[##] | 0 | 17 |
| RIP:jprobe_return_end | 0 | 17 |
| Kernel_panic-not_syncing:Fatal_exception | 0 | 17 |
+--------------------------------------------+------------+------------+
[ 43.572944] BUG: using smp_processor_id() in preemptible [00000000] code: swapper/0/1
[ 43.589378] caller is debug_smp_processor_id+0x1c/0x1e
[ 43.603335] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 4.14.0-rc3-00002-gb664d57 #2
[ 43.604188] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.10.2-1 04/01/2014
[ 43.604188] Call Trace:
[ 43.604188] dump_stack+0x85/0xb0
[ 43.604188] check_preemption_disabled+0x11e/0x13a
[ 43.604188] debug_smp_processor_id+0x1c/0x1e
[ 43.604188] jprobe_return+0x1b/0x2e
[ 43.604188] j_kprobe_target+0x48/0x4d
[ 43.604188] init_test_probes+0x29a/0x5c3
[ 43.604188] init_kprobes+0x262/0x272
[ 43.604188] ? debugfs_kprobe_init+0xd6/0xd6
[ 43.604188] do_one_initcall+0xaa/0x1ae
[ 43.604188] kernel_init_freeable+0x20d/0x2b5
[ 43.604188] ? rest_init+0x157/0x157
[ 43.604188] kernel_init+0x14/0x15d
[ 43.604188] ? rest_init+0x157/0x157
[ 43.604188] ret_from_fork+0x25/0x30
[ 43.769768] tsc: Refined TSC clocksource calibration: 2693.508 MHz
[ 43.774901] clocksource: tsc: mask: 0xffffffffffffffff max_cycles: 0x26d349e8249, max_idle_ns: 440795288087 ns
[ 44.108271] BUG: using smp_processor_id() in preemptible [00000000] code: swapper/0/1
[ 44.115706] caller is debug_smp_processor_id+0x1c/0x1e
[ 44.123287] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 4.14.0-rc3-00002-gb664d57 #2
[ 44.136256] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.10.2-1 04/01/2014
[ 44.152148] Call Trace:
[ 44.160150] dump_stack+0x85/0xb0
[ 44.168150] check_preemption_disabled+0x11e/0x13a
[ 44.176132] debug_smp_processor_id+0x1c/0x1e
[ 44.184148] jprobe_return+0x1b/0x2e
[ 44.192157] j_kprobe_target+0x48/0x4d
[ 44.200144] init_test_probes+0x341/0x5c3
[ 44.216147] init_kprobes+0x262/0x272
[ 44.220151] ? debugfs_kprobe_init+0xd6/0xd6
[ 44.236135] do_one_initcall+0xaa/0x1ae
[ 44.244151] kernel_init_freeable+0x20d/0x2b5
[ 44.252152] ? rest_init+0x157/0x157
[ 44.260151] kernel_init+0x14/0x15d
[ 44.268149] ? rest_init+0x157/0x157
[ 44.276148] ret_from_fork+0x25/0x30
[ 44.293463] BUG: using smp_processor_id() in preemptible [00000000] code: swapper/0/1
[ 44.309634] caller is debug_smp_processor_id+0x1c/0x1e
[ 44.318450] CPU: 1 PID: 1 Comm: swapper/0 Not tainted 4.14.0-rc3-00002-gb664d57 #2
[ 44.319354] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.10.2-1 04/01/2014
[ 44.319354] Call Trace:
[ 44.319354] dump_stack+0x85/0xb0
[ 44.319354] check_preemption_disabled+0x11e/0x13a
[ 44.319354] debug_smp_processor_id+0x1c/0x1e
[ 44.319354] jprobe_return+0x1b/0x2e
[ 44.319354] j_kprobe_target+0x48/0x4d
[ 44.319354] init_test_probes+0x37e/0x5c3
[ 44.319354] init_kprobes+0x262/0x272
[ 44.319354] ? debugfs_kprobe_init+0xd6/0xd6
[ 44.319354] do_one_initcall+0xaa/0x1ae
[ 44.319354] kernel_init_freeable+0x20d/0x2b5
[ 44.319354] ? rest_init+0x157/0x157
[ 44.319354] kernel_init+0x14/0x15d
[ 44.319354] ? rest_init+0x157/0x157
[ 44.319354] ret_from_fork+0x25/0x30
[ 44.479432] int3: 0000 [#1] PREEMPT SMP
[ 44.480285] Modules linked in:
[ 44.480285] CPU: 1 PID: 1 Comm: swapper/0 Not tainted 4.14.0-rc3-00002-gb664d57 #2
[ 44.480285] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.10.2-1 04/01/2014
[ 44.480285] task: ffff8c661c630000 task.stack: ffff8c661c638000
[ 44.480285] RIP: 0010:jprobe_return_end+0x0/0x4
[ 44.480285] RSP: 0000:0000000000000000 EFLAGS: 00000296
[ 44.480285] RAX: ffff8c661ca00000 RBX: ffff8c661c63bd90 RCX: ffff8c661c630000
[ 44.480285] RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000296
[ 44.480285] RBP: ffff8c661c63bd98 R08: 0000000000000000 R09: ffff8c661c630c10
[ 44.480285] R10: 00000000fff5c8d7 R11: 0000000000000000 R12: 0000000000000001
[ 44.480285] R13: 0000000000000000 R14: ffff8c661c631760 R15: 0000000000000000
[ 44.480285] FS: 0000000000000000(0000) GS:ffff8c661ca00000(0000) knlGS:0000000000000000
[ 44.480285] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 44.480285] CR2: 00000000ffffffff CR3: 0000000006e11000 CR4: 00000000000006e0
[ 44.480285] Call Trace:
[ 44.480285] Code: 00 00 55 48 89 e5 53 48 c7 c3 40 d9 00 00 e8 0c c2 11 00 e8 da 53 57 00 89 c0 48 8b 04 c5 40 13 7e 84 48 8b 5c 18 18 48 87 dc cc <90> 5b 5d c3 0f 1f 44 00 00 55 48 89 e5 41 56 41 55 41 54 53 49
[ 44.480285] RIP: jprobe_return_end+0x0/0x4 RSP: 0000000000000000
[ 44.683245] ---[ end trace 8b9e4a77732ab913 ]---
To reproduce:
git clone https://github.com/intel/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-4.14.0-rc3-00002-gb664d57" of type "text/plain" (123969 bytes)
View attachment "job-script" of type "text/plain" (4093 bytes)
Download attachment "dmesg.xz" of type "application/x-xz" (8152 bytes)
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