From: kernel test robot <oliver.sang@intel.com>
To: Sven Schnelle <svens@linux.ibm.com>
Cc: <oe-lkp@lists.linux.dev>, <lkp@intel.com>,
<linux-kernel@vger.kernel.org>,
Steven Rostedt <rostedt@goodmis.org>,
Masami Hiramatsu <mhiramat@kernel.org>,
<linux-trace-kernel@vger.kernel.org>, <oliver.sang@intel.com>
Subject: [linus:master] [tracing/synthetic] ddeea494a1: BUG:unable_to_handle_page_fault_for_address
Date: Thu, 31 Aug 2023 10:26:36 +0800 [thread overview]
Message-ID: <202308311026.b4bc6948-oliver.sang@intel.com> (raw)
Hello,
kernel test robot noticed "BUG:unable_to_handle_page_fault_for_address" on:
commit: ddeea494a16f32522bce16ee65f191d05d4b8282 ("tracing/synthetic: Use union instead of casts")
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git master
in testcase: boot
compiler: clang-16
test machine: qemu-system-i386 -enable-kvm -cpu SandyBridge -smp 2 -m 4G
(please refer to attached dmesg/kmsg for entire log/backtrace)
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@intel.com>
| Closes: https://lore.kernel.org/oe-lkp/202308311026.b4bc6948-oliver.sang@intel.com
[ 390.645593][ T41] BUG: unable to handle page fault for address: 001c24ca
[ 390.646174][ T41] #PF: supervisor read access in kernel mode
[ 390.646669][ T41] #PF: error_code(0x0000) - not-present page
[ 390.647170][ T41] *pdpt = 000000002e192001 *pde = 0000000000000000
[ 390.647717][ T41] Oops: 0000 [#1] PREEMPT SMP
[ 390.648101][ T41] CPU: 1 PID: 41 Comm: rcu_scale_write Tainted: G T 6.5.0-rc6-00003-gddeea494a16f #1 402c7a624341eb9320bc4b1c80c0d4ec9184aa32
[ 390.649312][ T41] EIP: string (lib/vsprintf.c:644)
[ 390.649695][ T41] Code: 73 43 89 c1 8b 44 24 10 89 04 24 89 5c 24 04 c1 fb 10 0f 84 ab 00 00 00 31 c0 89 ce eb 09 40 39 c3 0f 84 a2 00 00 00 8d 0c 07 <0f> b6 14 06 84 d2 0f 84 99 00 00 00 3b 4c 24 0c 73 e2 88 11 eb de
All code
========
0: 73 43 jae 0x45
2: 89 c1 mov %eax,%ecx
4: 8b 44 24 10 mov 0x10(%rsp),%eax
8: 89 04 24 mov %eax,(%rsp)
b: 89 5c 24 04 mov %ebx,0x4(%rsp)
f: c1 fb 10 sar $0x10,%ebx
12: 0f 84 ab 00 00 00 je 0xc3
18: 31 c0 xor %eax,%eax
1a: 89 ce mov %ecx,%esi
1c: eb 09 jmp 0x27
1e: 40 39 c3 rex cmp %eax,%ebx
21: 0f 84 a2 00 00 00 je 0xc9
27: 8d 0c 07 lea (%rdi,%rax,1),%ecx
2a:* 0f b6 14 06 movzbl (%rsi,%rax,1),%edx <-- trapping instruction
2e: 84 d2 test %dl,%dl
30: 0f 84 99 00 00 00 je 0xcf
36: 3b 4c 24 0c cmp 0xc(%rsp),%ecx
3a: 73 e2 jae 0x1e
3c: 88 11 mov %dl,(%rcx)
3e: eb de jmp 0x1e
Code starting with the faulting instruction
===========================================
0: 0f b6 14 06 movzbl (%rsi,%rax,1),%edx
4: 84 d2 test %dl,%dl
6: 0f 84 99 00 00 00 je 0xa5
c: 3b 4c 24 0c cmp 0xc(%rsp),%ecx
10: 73 e2 jae 0xfffffffffffffff4
12: 88 11 mov %dl,(%rcx)
14: eb de jmp 0xfffffffffffffff4
[ 390.651345][ T41] EAX: 00000000 EBX: ffffffff ECX: c31b291f EDX: 00000000
[ 390.651928][ T41] ESI: 001c24ca EDI: c31b291f EBP: c428fcc4 ESP: c428fca0
[ 390.652517][ T41] DS: 007b ES: 007b FS: 00d8 GS: 0000 SS: 0068 EFLAGS: 00010046
[ 390.653162][ T41] CR0: 80050033 CR2: 001c24ca CR3: 2e2a62a0 CR4: 000406f0
[ 390.653800][ T41] DR0: 00000000 DR1: 00000000 DR2: 00000000 DR3: 00000000
[ 390.654421][ T41] DR6: fffe0ff0 DR7: 00000400
[ 390.654809][ T41] Call Trace:
[ 390.655097][ T41] ? __die_body (arch/x86/kernel/dumpstack.c:478 arch/x86/kernel/dumpstack.c:420)
[ 390.655473][ T41] ? __die (arch/x86/kernel/dumpstack.c:434)
[ 390.655807][ T41] ? page_fault_oops (arch/x86/mm/fault.c:703)
[ 390.656237][ T41] ? pvclock_clocksource_read_nowd (arch/x86/include/asm/pvclock.h:36 arch/x86/kernel/pvclock.c:79 arch/x86/kernel/pvclock.c:120)
[ 390.656769][ T41] ? kernelmode_fixup_or_oops (arch/x86/mm/fault.c:761)
[ 390.657284][ T41] ? __bad_area_nosemaphore (arch/x86/mm/fault.c:817)
[ 390.657763][ T41] ? pvclock_clocksource_read_nowd (arch/x86/include/asm/pvclock.h:36 arch/x86/kernel/pvclock.c:79 arch/x86/kernel/pvclock.c:120)
[ 390.658279][ T41] ? bad_area_nosemaphore (arch/x86/mm/fault.c:866)
[ 390.658710][ T41] ? do_user_addr_fault (arch/x86/mm/fault.c:?)
[ 390.659137][ T41] ? exc_page_fault (arch/x86/include/asm/irqflags.h:19 arch/x86/include/asm/irqflags.h:67 arch/x86/include/asm/irqflags.h:127 arch/x86/mm/fault.c:1494 arch/x86/mm/fault.c:1542)
[ 390.659538][ T41] ? local_clock_noinstr (kernel/sched/build_utility.c:301)
[ 390.659974][ T41] ? pvclock_clocksource_read_nowd (arch/x86/mm/fault.c:1499)
[ 390.660529][ T41] ? handle_exception (arch/x86/entry/entry_32.S:1049)
[ 390.660982][ T41] ? pvclock_clocksource_read_nowd (arch/x86/mm/fault.c:1499)
[ 390.661525][ T41] ? string (lib/vsprintf.c:644)
[ 390.661882][ T41] ? pvclock_clocksource_read_nowd (arch/x86/mm/fault.c:1499)
[ 390.662443][ T41] ? string (lib/vsprintf.c:644)
[ 390.662796][ T41] vsnprintf (lib/vsprintf.c:2817)
[ 390.663174][ T41] seq_buf_vprintf (lib/seq_buf.c:64)
[ 390.663579][ T41] trace_seq_printf (include/linux/seq_buf.h:47 kernel/trace/trace_seq.c:96)
[ 390.663979][ T41] print_synth_event (kernel/trace/trace_events_synth.c:? kernel/trace/trace_events_synth.c:409)
[ 390.664446][ T41] print_trace_fmt (kernel/trace/trace.c:?)
[ 390.664878][ T41] print_trace_line (kernel/trace/trace.c:?)
[ 390.665321][ T41] ftrace_dump (kernel/trace/trace.c:10167)
[ 390.665711][ T41] rcu_scale_writer (kernel/rcu/rcuscale.c:486)
[ 390.666140][ T41] kthread (kernel/kthread.c:391)
[ 390.666516][ T41] ? rcu_scale_reader (kernel/rcu/rcuscale.c:410)
[ 390.666972][ T41] ? kthread_unuse_mm (kernel/kthread.c:342)
[ 390.667422][ T41] ? kthread_unuse_mm (kernel/kthread.c:342)
[ 390.667879][ T41] ret_from_fork (arch/x86/kernel/process.c:151)
[ 390.668271][ T41] ret_from_fork_asm (arch/x86/entry/entry_32.S:741)
[ 390.668691][ T41] entry_INT80_32 (arch/x86/entry/entry_32.S:947)
[ 390.669124][ T41] Modules linked in:
[ 390.669435][ T41] CR2: 00000000001c24ca
[ 390.669806][ T41] ---[ end trace 0000000000000000 ]---
[ 390.670258][ T41] EIP: string (lib/vsprintf.c:644)
[ 390.670623][ T41] Code: 73 43 89 c1 8b 44 24 10 89 04 24 89 5c 24 04 c1 fb 10 0f 84 ab 00 00 00 31 c0 89 ce eb 09 40 39 c3 0f 84 a2 00 00 00 8d 0c 07 <0f> b6 14 06 84 d2 0f 84 99 00 00 00 3b 4c 24 0c 73 e2 88 11 eb de
All code
========
0: 73 43 jae 0x45
2: 89 c1 mov %eax,%ecx
4: 8b 44 24 10 mov 0x10(%rsp),%eax
8: 89 04 24 mov %eax,(%rsp)
b: 89 5c 24 04 mov %ebx,0x4(%rsp)
f: c1 fb 10 sar $0x10,%ebx
12: 0f 84 ab 00 00 00 je 0xc3
18: 31 c0 xor %eax,%eax
1a: 89 ce mov %ecx,%esi
1c: eb 09 jmp 0x27
1e: 40 39 c3 rex cmp %eax,%ebx
21: 0f 84 a2 00 00 00 je 0xc9
27: 8d 0c 07 lea (%rdi,%rax,1),%ecx
2a:* 0f b6 14 06 movzbl (%rsi,%rax,1),%edx <-- trapping instruction
2e: 84 d2 test %dl,%dl
30: 0f 84 99 00 00 00 je 0xcf
36: 3b 4c 24 0c cmp 0xc(%rsp),%ecx
3a: 73 e2 jae 0x1e
3c: 88 11 mov %dl,(%rcx)
3e: eb de jmp 0x1e
Code starting with the faulting instruction
===========================================
0: 0f b6 14 06 movzbl (%rsi,%rax,1),%edx
4: 84 d2 test %dl,%dl
6: 0f 84 99 00 00 00 je 0xa5
c: 3b 4c 24 0c cmp 0xc(%rsp),%ecx
10: 73 e2 jae 0xfffffffffffffff4
12: 88 11 mov %dl,(%rcx)
14: eb de jmp 0xfffffffffffffff4
The kernel config and materials to reproduce are available at:
https://download.01.org/0day-ci/archive/20230831/202308311026.b4bc6948-oliver.sang@intel.com
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
reply other threads:[~2023-08-31 2:26 UTC|newest]
Thread overview: [no followups] expand[flat|nested] mbox.gz Atom feed
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=202308311026.b4bc6948-oliver.sang@intel.com \
--to=oliver.sang@intel.com \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-trace-kernel@vger.kernel.org \
--cc=lkp@intel.com \
--cc=mhiramat@kernel.org \
--cc=oe-lkp@lists.linux.dev \
--cc=rostedt@goodmis.org \
--cc=svens@linux.ibm.com \
/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.