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Message-ID: <202309041211.4f7e4d51-oliver.sang@intel.com>
Date: Mon, 4 Sep 2023 13:26:37 +0800
From: kernel test robot <oliver.sang@...el.com>
To: Tom Zanussi <zanussi@...nel.org>
CC: <oe-lkp@...ts.linux.dev>, <lkp@...el.com>,
<linux-kernel@...r.kernel.org>,
Steven Rostedt <rostedt@...dmis.org>,
<linux-trace-kernel@...r.kernel.org>, <oliver.sang@...el.com>
Subject: [linus:master] [tracing] 726721a518:
WARNING:at_kernel/trace/trace_events.c:#event_trace_self_tests
Hello,
kernel test robot noticed "WARNING:at_kernel/trace/trace_events.c:#event_trace_self_tests" on:
commit: 726721a51838e3983023f906580722fc83f804ee ("tracing: Move synthetic events to a separate file")
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git master
[test failed on linus/master 99d99825fc075fd24b60cc9cf0fb1e20b9c16b0f]
[test failed on linux-next/master a47fc304d2b678db1a5d760a7d644dac9b067752]
[test failed on fix commit 6c95503c292610ff2898b4271c510c16efdcd4e1]
in testcase: boot
compiler: clang-16
test machine: qemu-system-x86_64 -enable-kvm -cpu SandyBridge -smp 2 -m 16G
(please refer to attached dmesg/kmsg for entire log/backtrace)
+----------------------------------------------------------------+------------+------------+
| | 5bbf959de4 | 726721a518 |
+----------------------------------------------------------------+------------+------------+
| WARNING:at_kernel/trace/trace_events.c:#event_trace_self_tests | 0 | 20 |
| RIP:event_trace_self_tests | 0 | 20 |
+----------------------------------------------------------------+------------+------------+
If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <oliver.sang@...el.com>
| Closes: https://lore.kernel.org/oe-lkp/202309041211.4f7e4d51-oliver.sang@intel.com
[ 38.032327][ T1] ------------[ cut here ]------------
[ 38.033043][ T1] WARNING: CPU: 0 PID: 1 at kernel/trace/trace_events.c:3579 event_trace_self_tests (kernel/trace/trace_events.c:3578)
[ 38.034342][ T1] Modules linked in:
[ 38.034833][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.7.0-rc6-00009-g726721a51838e #1
[ 38.035931][ T1] RIP: 0010:event_trace_self_tests (kernel/trace/trace_events.c:3578)
[ 38.036698][ T1] Code: 00 4c 89 f7 31 f6 31 d2 e8 be 86 4f fd 48 c7 c7 a0 a2 e0 82 e8 71 79 96 fe e9 2d fe ff ff 48 c7 c7 40 a2 e0 82 e8 60 79 96 fe <0f> 0b e9 1a fe ff ff 89 f9 80 e1 07 80 c1 03 38 c1 0f 8c 2b ff ff
All code
========
0: 00 4c 89 f7 add %cl,-0x9(%rcx,%rcx,4)
4: 31 f6 xor %esi,%esi
6: 31 d2 xor %edx,%edx
8: e8 be 86 4f fd call 0xfffffffffd4f86cb
d: 48 c7 c7 a0 a2 e0 82 mov $0xffffffff82e0a2a0,%rdi
14: e8 71 79 96 fe call 0xfffffffffe96798a
19: e9 2d fe ff ff jmp 0xfffffffffffffe4b
1e: 48 c7 c7 40 a2 e0 82 mov $0xffffffff82e0a240,%rdi
25: e8 60 79 96 fe call 0xfffffffffe96798a
2a:* 0f 0b ud2 <-- trapping instruction
2c: e9 1a fe ff ff jmp 0xfffffffffffffe4b
31: 89 f9 mov %edi,%ecx
33: 80 e1 07 and $0x7,%cl
36: 80 c1 03 add $0x3,%cl
39: 38 c1 cmp %al,%cl
3b: 0f .byte 0xf
3c: 8c 2b mov %gs,(%rbx)
3e: ff (bad)
3f: ff .byte 0xff
Code starting with the faulting instruction
===========================================
0: 0f 0b ud2
2: e9 1a fe ff ff jmp 0xfffffffffffffe21
7: 89 f9 mov %edi,%ecx
9: 80 e1 07 and $0x7,%cl
c: 80 c1 03 add $0x3,%cl
f: 38 c1 cmp %al,%cl
11: 0f .byte 0xf
12: 8c 2b mov %gs,(%rbx)
14: ff (bad)
15: ff .byte 0xff
[ 38.039936][ T1] RSP: 0000:ffffc9000002fd28 EFLAGS: 00010246
[ 38.040690][ T1] RAX: 000000000000001f RBX: 1ffff110692b1a13 RCX: 5cd88e2e3e192400
[ 38.041751][ T1] RDX: dffffc0000000000 RSI: 0000000000000006 RDI: 0000000000000246
[ 38.042766][ T1] RBP: ffff88834958d090 R08: ffff8883a00fccd4 R09: ffff8883a00fcd0c
[ 38.043757][ T1] R10: 0000000000000000 R11: 0000000000000001 R12: ffff88834958d038
[ 38.044754][ T1] R13: dffffc0000000000 R14: ffff8883a0abfbb8 R15: ffff8883a0abfc00
[ 38.045753][ T1] FS: 0000000000000000(0000) GS:ffff8883a2600000(0000) knlGS:0000000000000000
[ 38.046834][ T1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 38.047635][ T1] CR2: 0000000000000000 CR3: 0000000003414000 CR4: 00000000000406f0
[ 38.048622][ T1] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 38.049668][ T1] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 38.050655][ T1] Call Trace:
[ 38.051097][ T1] event_trace_self_tests_init (kernel/trace/trace_events.c:3722)
[ 38.051812][ T1] do_one_initcall (init/main.c:1196)
[ 38.052414][ T1] ? event_trace_enable (kernel/trace/trace_events.c:3720)
[ 38.053076][ T1] ? parameq (include/linux/string.h:303 kernel/params.c:97)
[ 38.053580][ T1] ? do_initcall_level (init/main.c:1254)
[ 38.054207][ T1] ? parse_args (kernel/params.c:153)
[ 38.054768][ T1] ? rcu_read_lock_sched_held (include/linux/lockdep.h:406 kernel/rcu/update.c:121)
[ 38.055461][ T1] do_initcall_level (init/main.c:1268)
[ 38.056080][ T1] do_initcalls (init/main.c:1282)
[ 38.056625][ T1] kernel_init_freeable (init/main.c:1491)
[ 38.057825][ T1] ? rest_init (init/main.c:1393)
[ 38.058411][ T1] kernel_init (init/main.c:1398)
[ 38.058947][ T1] ? rest_init (init/main.c:1393)
[ 38.059515][ T1] ret_from_fork (arch/x86/entry/entry_64.S:357)
[ 38.060075][ T1] irq event stamp: 4794060
[ 38.060625][ T1] hardirqs last enabled at (4794059): console_unlock (arch/x86/include/asm/paravirt.h:759 kernel/printk/printk.c:2527)
[ 38.061824][ T1] hardirqs last disabled at (4794060): trace_hardirqs_off_thunk (arch/x86/entry/thunk_64.S:42)
[ 38.063131][ T1] softirqs last enabled at (4793252): __do_softirq (arch/x86/include/asm/preempt.h:26 kernel/softirq.c:320)
[ 38.064320][ T1] softirqs last disabled at (4793245): irq_exit (kernel/softirq.c:373)
[ 38.065481][ T1] ---[ end trace af295442fa96db7c ]---
[ 38.066228][ T1] Testing event empty_synth_test:
[ 38.066230][ T1] Enabled event during self test!
[ 38.067535][ T1] Testing event gen_synth_test:
[ 38.067536][ T1] Enabled event during self test!
[ 38.068811][ T1] Testing event initcall_level: OK
The kernel config and materials to reproduce are available at:
https://download.01.org/0day-ci/archive/20230904/202309041211.4f7e4d51-oliver.sang@intel.com
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
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