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X-MS-Exchange-Transport-CrossTenantHeadersStamped: PH8PR11MB6902 X-OriginatorOrg: intel.com Hello, kernel test robot noticed "WARNING:at_kernel/jump_label.c:#static_key_dec_not_one" on: commit: d4700c3ee4c19fc8ff8925709b3227ddb9b64b1a ("perf: Simplify perf_event_alloc() error path") https://git.kernel.org/cgit/linux/kernel/git/peterz/queue.git perf/pmu-unregister in testcase: trinity version: trinity-x86_64-ba2360ed-1_20240923 with following parameters: runtime: 300s group: group-02 nr_groups: 5 config: x86_64-randconfig-073-20241023 compiler: gcc-11 test machine: qemu-system-x86_64 -enable-kvm -cpu SandyBridge -smp 2 -m 16G (please refer to attached dmesg/kmsg for entire log/backtrace) +--------------------------------------------------------+------------+------------+ | | 07dec8f2ff | d4700c3ee4 | +--------------------------------------------------------+------------+------------+ | WARNING:at_kernel/jump_label.c:#static_key_dec_not_one | 0 | 5 | | RIP:static_key_dec_not_one | 0 | 5 | +--------------------------------------------------------+------------+------------+ 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 | Closes: https://lore.kernel.org/oe-lkp/202410251648.683b17b1-lkp@intel.com [ 287.833484][ T3554] ------------[ cut here ]------------ [ 287.834530][ T3554] WARNING: CPU: 0 PID: 3554 at kernel/jump_label.c:282 static_key_dec_not_one (kernel/jump_label.c:282 (discriminator 1)) [ 287.836443][ T3554] Modules linked in: crc32_pclmul ghash_clmulni_intel sha512_ssse3 rapl intel_agp intel_gtt psmouse agpgart tiny_power_button button input_leds fuse configfs dmi_sysfs qemu_fw_cfg aesni_intel [ 287.839884][ T3554] CPU: 0 UID: 65534 PID: 3554 Comm: trinity-main Not tainted 6.12.0-rc2-00019-gd4700c3ee4c1 #1 [ 287.841724][ T3554] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.2-debian-1.16.2-1 04/01/2014 [ 287.843605][ T3554] RIP: 0010:static_key_dec_not_one (kernel/jump_label.c:282 (discriminator 1)) [ 287.844669][ T3554] Code: 83 c0 03 38 d0 7c 0c 84 d2 74 08 4c 89 ff e8 1d b5 0e 00 41 8b 07 4d 8d 74 24 e0 41 89 44 24 e0 85 c0 79 04 0f 0b eb 40 75 07 <0f> 0b 41 b0 01 eb 3a 83 f8 01 74 32 44 8d 68 ff be 04 00 00 00 4c All code ======== 0: 83 c0 03 add $0x3,%eax 3: 38 d0 cmp %dl,%al 5: 7c 0c jl 0x13 7: 84 d2 test %dl,%dl 9: 74 08 je 0x13 b: 4c 89 ff mov %r15,%rdi e: e8 1d b5 0e 00 call 0xeb530 13: 41 8b 07 mov (%r15),%eax 16: 4d 8d 74 24 e0 lea -0x20(%r12),%r14 1b: 41 89 44 24 e0 mov %eax,-0x20(%r12) 20: 85 c0 test %eax,%eax 22: 79 04 jns 0x28 24: 0f 0b ud2 26: eb 40 jmp 0x68 28: 75 07 jne 0x31 2a:* 0f 0b ud2 <-- trapping instruction 2c: 41 b0 01 mov $0x1,%r8b 2f: eb 3a jmp 0x6b 31: 83 f8 01 cmp $0x1,%eax 34: 74 32 je 0x68 36: 44 8d 68 ff lea -0x1(%rax),%r13d 3a: be 04 00 00 00 mov $0x4,%esi 3f: 4c rex.WR Code starting with the faulting instruction =========================================== 0: 0f 0b ud2 2: 41 b0 01 mov $0x1,%r8b 5: eb 3a jmp 0x41 7: 83 f8 01 cmp $0x1,%eax a: 74 32 je 0x3e c: 44 8d 68 ff lea -0x1(%rax),%r13d 10: be 04 00 00 00 mov $0x4,%esi 15: 4c rex.WR [ 287.848166][ T3554] RSP: 0018:ffffc90001c9fbd8 EFLAGS: 00010246 [ 287.849416][ T3554] RAX: 0000000000000000 RBX: 1ffff92000393f7b RCX: fffffbfff0a1eb45 [ 287.850773][ T3554] RDX: fffffbfff0a1eb00 RSI: 0000000000000004 RDI: ffffffff850f5a20 [ 287.852296][ T3554] RBP: ffffc90001c9fc40 R08: fffffbfff0a1eb45 R09: 0000000000000000 [ 287.853673][ T3554] R10: ffffffff8145e5ac R11: ffffffff850f5a23 R12: ffffc90001c9fc18 [ 287.855035][ T3554] R13: dffffc0000000000 R14: ffffc90001c9fbf8 R15: ffffffff850f5a20 [ 287.856516][ T3554] FS: 00007f77a3aed740(0000) GS:ffffffff834fe000(0000) knlGS:0000000000000000 [ 287.858053][ T3554] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 287.859312][ T3554] CR2: 00005597f0734028 CR3: 0000000116316000 CR4: 00000000000406f0 [ 287.860753][ T3554] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 287.862184][ T3554] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 287.863597][ T3554] Call Trace: [ 287.864232][ T3554] [ 287.864777][ T3554] ? show_regs (arch/x86/kernel/dumpstack.c:479) [ 287.865664][ T3554] ? static_key_dec_not_one (kernel/jump_label.c:282 (discriminator 1)) [ 287.866597][ T3554] ? __warn (kernel/panic.c:748) [ 287.867328][ T3554] ? static_key_dec_not_one (kernel/jump_label.c:282 (discriminator 1)) [ 287.868300][ T3554] ? report_bug (lib/bug.c:201 lib/bug.c:219) [ 287.869181][ T3554] ? handle_bug (arch/x86/kernel/traps.c:285) [ 287.869961][ T3554] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) [ 287.870811][ T3554] ? asm_exc_invalid_op (arch/x86/include/asm/idtentry.h:621) [ 287.871907][ T3554] ? static_key_dec_not_one (arch/x86/include/asm/atomic.h:23 include/linux/atomic/atomic-arch-fallback.h:457 include/linux/atomic/atomic-instrumented.h:33 kernel/jump_label.c:268) [ 287.872864][ T3554] ? static_key_dec_not_one (kernel/jump_label.c:282 (discriminator 1)) [ 287.873795][ T3554] ? static_key_dec_not_one (arch/x86/include/asm/atomic.h:23 include/linux/atomic/atomic-arch-fallback.h:457 include/linux/atomic/atomic-instrumented.h:33 kernel/jump_label.c:268) [ 287.874700][ T3554] ? static_key_set_mod (kernel/jump_label.c:254) [ 287.875732][ T3554] __static_key_slow_dec_cpuslocked (kernel/jump_label.c:297) [ 287.876874][ T3554] static_key_slow_dec (kernel/jump_label.c:337 (discriminator 3)) [ 287.877765][ T3554] sw_perf_event_destroy (kernel/events/core.c:10232 (discriminator 3) kernel/events/core.c:10245 (discriminator 3) kernel/events/core.c:10305 (discriminator 3)) [ 287.878723][ T3554] __free_event (kernel/events/core.c:5338) [ 287.879557][ T3554] perf_event_alloc (include/linux/err.h:41 kernel/events/core.c:12393) [ 287.880509][ T3554] __do_sys_perf_event_open (kernel/events/core.c:12802) [ 287.881560][ T3554] ? perf_remove_from_context (kernel/events/core.c:12696) [ 287.882663][ T3554] ? rcu_read_unlock (include/linux/rcupdate.h:347 (discriminator 9) include/linux/rcupdate.h:880 (discriminator 9)) [ 287.883569][ T3554] ? __this_cpu_preempt_check (lib/smp_processor_id.c:67) [ 287.884565][ T3554] ? lock_release (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5848) [ 287.885498][ T3554] __x64_sys_perf_event_open (kernel/events/core.c:12693) [ 287.886445][ T3554] x64_sys_call (kbuild/obj/consumer/x86_64-randconfig-073-20241023/./arch/x86/include/generated/asm/syscalls_64.h:299) [ 287.887311][ T3554] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) [ 287.888193][ T3554] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) [ 287.889316][ T3554] RIP: 0033:0x7f77a3bf1719 [ 287.890122][ T3554] Code: 08 89 e8 5b 5d c3 66 2e 0f 1f 84 00 00 00 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d b7 06 0d 00 f7 d8 64 89 01 48 All code ======== 0: 08 89 e8 5b 5d c3 or %cl,-0x3ca2a418(%rcx) 6: 66 2e 0f 1f 84 00 00 cs nopw 0x0(%rax,%rax,1) d: 00 00 00 10: 90 nop 11: 48 89 f8 mov %rdi,%rax 14: 48 89 f7 mov %rsi,%rdi 17: 48 89 d6 mov %rdx,%rsi 1a: 48 89 ca mov %rcx,%rdx 1d: 4d 89 c2 mov %r8,%r10 20: 4d 89 c8 mov %r9,%r8 23: 4c 8b 4c 24 08 mov 0x8(%rsp),%r9 28: 0f 05 syscall 2a:* 48 3d 01 f0 ff ff cmp $0xfffffffffffff001,%rax <-- trapping instruction 30: 73 01 jae 0x33 32: c3 ret 33: 48 8b 0d b7 06 0d 00 mov 0xd06b7(%rip),%rcx # 0xd06f1 3a: f7 d8 neg %eax 3c: 64 89 01 mov %eax,%fs:(%rcx) 3f: 48 rex.W Code starting with the faulting instruction =========================================== 0: 48 3d 01 f0 ff ff cmp $0xfffffffffffff001,%rax 6: 73 01 jae 0x9 8: c3 ret 9: 48 8b 0d b7 06 0d 00 mov 0xd06b7(%rip),%rcx # 0xd06c7 10: f7 d8 neg %eax 12: 64 89 01 mov %eax,%fs:(%rcx) 15: 48 rex.W The kernel config and materials to reproduce are available at: https://download.01.org/0day-ci/archive/20241025/202410251648.683b17b1-lkp@intel.com -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki