* [jimc:jump-batch-apply-fixed] [x86/jump_label] c80bbdac99: BUG:unable_to_handle_page_fault_for_address
@ 2026-08-26 2:38 kernel test robot
0 siblings, 0 replies; only message in thread
From: kernel test robot @ 2026-08-26 2:38 UTC (permalink / raw)
To: Jim Cromie, Łukasz Bartosik; +Cc: oe-lkp, lkp, yi1.lai
Hello,
kernel test robot noticed "BUG:unable_to_handle_page_fault_for_address" on:
commit: c80bbdac99096eb3f00e5c3a18d275b9e07fe0ef ("x86/jump_label: use system_state < SYSTEM_RUNNING for early boot fallback") https://github.com/jimc/linux.git jump-batch-apply-fixed
in testcase: trinity
version: trinity-i386-abe9de86-1_20230429 with following parameters:
runtime: 300s
group: group-04
nr_groups: 5
config: x86_64-randconfig-102-20260813
compiler: gcc-14
test machine: qemu-system-x86_64 -enable-kvm -cpu SandyBridge -smp 2 -m 32G
(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 <yi1.lai@intel.com>
| Closes: https://lore.kernel.org/oe-lkp/202608261049.66dbc9f6-lkp@intel.com
[ 161.700046][ T10] BUG: unable to handle page fault for address: ffffffff866d0d8b
[ 161.700327][ T10] #PF: supervisor write access in kernel mode
[ 161.700327][ T10] #PF: error_code(0x0003) - permissions violation
[ 161.700327][ T10] PGD 9343067 P4D 9343067 PUD 9344063 PMD 66000a1
[ 161.700327][ T10] Oops: Oops: 0003 [#1] KASAN PTI
[ 161.700327][ T10] CPU: 0 UID: 0 PID: 10 Comm: kworker/0:1 Tainted: G T 7.2.0-rc6+ #1 PREEMPT(lazy)
[ 161.700327][ T10] Tainted: [T]=RANDSTRUCT
[ 161.700327][ T10] Workqueue: events once_deferred
[ 161.700327][ T10] RIP: 0010:memcpy_orig (x86/lib/memcpy_64.S:164)
[ 161.700327][ T10] Code: 16 fc 89 0f 44 89 44 17 fc c3 cc 66 66 2e 0f 1f 84 00 00 00 00 00 83 ea 01 72 19 0f b6 0e 74 12 4c 0f b6 46 01 4c 0f b6 0c 16 <44> 88 47 01 44 88 0c 17 88 0f c3 cc cc cc cc cc cc cc cc cc cc cc
All code
========
0: 16 (bad)
1: fc cld
2: 89 0f mov %ecx,(%rdi)
4: 44 89 44 17 fc mov %r8d,-0x4(%rdi,%rdx,1)
9: c3 ret
a: cc int3
b: 66 66 2e 0f 1f 84 00 data16 cs nopw 0x0(%rax,%rax,1)
12: 00 00 00 00
16: 83 ea 01 sub $0x1,%edx
19: 72 19 jb 0x34
1b: 0f b6 0e movzbl (%rsi),%ecx
1e: 74 12 je 0x32
20: 4c 0f b6 46 01 movzbq 0x1(%rsi),%r8
25: 4c 0f b6 0c 16 movzbq (%rsi,%rdx,1),%r9
2a:* 44 88 47 01 mov %r8b,0x1(%rdi) <-- trapping instruction
2e: 44 88 0c 17 mov %r9b,(%rdi,%rdx,1)
32: 88 0f mov %cl,(%rdi)
34: c3 ret
35: cc int3
36: cc int3
37: cc int3
38: cc int3
39: cc int3
3a: cc int3
3b: cc int3
3c: cc int3
3d: cc int3
3e: cc int3
3f: cc int3
Code starting with the faulting instruction ===========================================
0: 44 88 47 01 mov %r8b,0x1(%rdi)
4: 44 88 0c 17 mov %r9b,(%rdi,%rdx,1)
8: 88 0f mov %cl,(%rdi)
a: c3 ret
b: cc int3
c: cc int3
d: cc int3
e: cc int3
f: cc int3
10: cc int3
11: cc int3
12: cc int3
13: cc int3
14: cc int3
15: cc int3
[ 161.700327][ T10] RSP: 0000:ffffc900000afad8 EFLAGS: 00210002
[ 161.700327][ T10] RAX: ffffffff866d0d8a RBX: 0000000000000002 RCX: 0000000000000066
[ 161.700327][ T10] RDX: 0000000000000001 RSI: ffffffff876529a1 RDI: ffffffff866d0d8a
[ 161.700327][ T10] RBP: ffffc900000afaf8 R08: 0000000000000090 R09: 0000000000000090
[ 161.700327][ T10] R10: ffffffff866d0d8b R11: ffffffff8996e6a0 R12: ffffffff876529a1
[ 161.700327][ T10] R13: ffffffff866d0d8a R14: ffffffff876529a1 R15: ffffffff89001338
[ 161.700327][ T10] FS: 0000000000000000(0000) GS:0000000000000000(0000) knlGS:0000000000000000
[ 161.700327][ T10] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 161.700327][ T10] CR2: ffffffff866d0d8b CR3: 0000000009340000 CR4: 00000000000406f0
[ 161.700327][ T10] Call Trace:
[ 161.700327][ T10] <TASK>
[ 161.700327][ T10] ? __asan_memcpy (kasan/shadow.c:109)
[ 161.700327][ T10] ? flow_hash_from_keys (core/flow_dissector.c:1820)
[ 161.700327][ T10] text_poke_early (x86/kernel/alternative.c:2505 (discriminator 6))
[ 161.700327][ T10] jump_label_transform+0x8f/0x100
[ 161.700327][ T10] ? sched_clock_noinstr (x86/kernel/tsc.c:274)
[ 161.700327][ T10] arch_jump_label_transform_queue (x86/kernel/jump_label.c:120 x86/kernel/jump_label.c:132)
[ 161.700327][ T10] ? __kasan_check_read (kasan/shadow.c:31 (discriminator 1))
[ 161.700327][ T10] __jump_label_update (jump_label.c:549 (discriminator 1))
[ 161.700327][ T10] jump_label_update_key (jump_label.c:962)
[ 161.700327][ T10] ? process_one_work (workqueue.c:3297 (discriminator 1))
[ 161.700327][ T10] static_key_disable_cpuslocked (jump_label.c:967 jump_label.c:241)
[ 161.700327][ T10] static_key_disable (jump_label.c:249)
[ 161.700327][ T10] once_deferred (once.c:20)
[ 161.700327][ T10] process_one_work (workqueue.c:3322)
[ 161.700327][ T10] ? __queue_delayed_work (workqueue.c:2575)
[ 161.700327][ T10] ? __this_cpu_preempt_check (smp_processor_id.c:64)
[ 161.700327][ T10] ? assign_work (workqueue.c:1233)
[ 161.700327][ T10] worker_thread (workqueue.c:3405 workqueue.c:3486)
[ 161.700327][ T10] ? trace_hardirqs_on (trace/trace_preemptirq.c:79 (discriminator 1))
[ 161.700327][ T10] kthread (kthread.c:436)
[ 161.700327][ T10] ? calculate_sigpending (linux/spinlock.h:402 signal.c:194)
[ 161.700327][ T10] ? rescuer_thread (x86/include/asm/current.h:23)
[ 161.700327][ T10] ? kthread_affine_node (linux/list.h:404 (discriminator 2))
[ 161.700327][ T10] ret_from_fork (x86/kernel/process.c:158)
[ 161.700327][ T10] ? __kasan_check_read (kasan/shadow.c:31 (discriminator 1))
[ 161.700327][ T10] ? arch_exit_to_user_mode_prepare+0x180/0x180
[ 161.700327][ T10] ? __switch_to (x86/kernel/process_64.c:619)
[ 161.700327][ T10] ? kthread_affine_node (linux/list.h:404 (discriminator 2))
[ 161.700327][ T10] ret_from_fork_asm (x86/entry/entry_64.S:245)
[ 161.700327][ T10] </TASK>
[ 161.700327][ T10] Modules linked in:
[ 161.700327][ T10] CR2: ffffffff866d0d8b
[ 161.700327][ T10] ---[ end trace 0000000000000000 ]---
[ 161.700327][ T10] RIP: 0010:memcpy_orig (x86/lib/memcpy_64.S:164)
[ 161.700327][ T10] Code: 16 fc 89 0f 44 89 44 17 fc c3 cc 66 66 2e 0f 1f 84 00 00 00 00 00 83 ea 01 72 19 0f b6 0e 74 12 4c 0f b6 46 01 4c 0f b6 0c 16 <44> 88 47 01 44 88 0c 17 88 0f c3 cc cc cc cc cc cc cc cc cc cc cc
All code
========
0: 16 (bad)
1: fc cld
2: 89 0f mov %ecx,(%rdi)
4: 44 89 44 17 fc mov %r8d,-0x4(%rdi,%rdx,1)
9: c3 ret
a: cc int3
b: 66 66 2e 0f 1f 84 00 data16 cs nopw 0x0(%rax,%rax,1)
12: 00 00 00 00
16: 83 ea 01 sub $0x1,%edx
19: 72 19 jb 0x34
1b: 0f b6 0e movzbl (%rsi),%ecx
1e: 74 12 je 0x32
20: 4c 0f b6 46 01 movzbq 0x1(%rsi),%r8
25: 4c 0f b6 0c 16 movzbq (%rsi,%rdx,1),%r9
2a:* 44 88 47 01 mov %r8b,0x1(%rdi) <-- trapping instruction
2e: 44 88 0c 17 mov %r9b,(%rdi,%rdx,1)
32: 88 0f mov %cl,(%rdi)
34: c3 ret
35: cc int3
36: cc int3
37: cc int3
38: cc int3
39: cc int3
3a: cc int3
3b: cc int3
3c: cc int3
3d: cc int3
3e: cc int3
3f: cc int3
Code starting with the faulting instruction ===========================================
0: 44 88 47 01 mov %r8b,0x1(%rdi)
4: 44 88 0c 17 mov %r9b,(%rdi,%rdx,1)
8: 88 0f mov %cl,(%rdi)
a: c3 ret
b: cc int3
c: cc int3
d: cc int3
e: cc int3
f: cc int3
10: cc int3
11: cc int3
12: cc int3
13: cc int3
14: cc int3
15: cc int3
The kernel config and materials to reproduce are available at:
https://download.01.org/0day-ci/archive/20260826/202608261049.66dbc9f6-lkp@intel.com
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
^ permalink raw reply [flat|nested] only message in thread
only message in thread, other threads:[~2026-08-26 2:38 UTC | newest]
Thread overview: (only message) (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2026-08-26 2:38 [jimc:jump-batch-apply-fixed] [x86/jump_label] c80bbdac99: BUG:unable_to_handle_page_fault_for_address kernel test robot
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.