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[ 30.935400][ T61] Oops: invalid opcode: 0000 [#1] SMP PTI [ 30.936825][ T61] CPU: 0 UID: 0 PID: 61 Comm: kworker/0:2 Not tainted 6.11.0-rc3-00004-gde752774f38b #9 [ 30.938908][ T61] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.2-debian-1.16.2-1 04/01/2014 [ 30.941185][ T61] Workqueue: cgroup_destroy css_free_rwork_fn [ 30.942549][ T61] RIP: 0010:__jump_label_patch (arch/x86/kernel/jump_label.c:73) [ 30.943854][ T61] Code: cc cc cc cc cc e8 de 44 f5 00 48 c7 c7 a5 22 44 89 4c 89 f6 4c 89 f2 4c 89 f1 4d 89 e0 41 89 e9 53 e8 72 7f f4 00 48 83 c4 08 <0f> 0b 0f 0b 0f 0b 0f 0b 66 0f 1f 44 00 00 90 90 90 90 90 90 90 90 All code ======== 0: cc int3 1: cc int3 2: cc int3 3: cc int3 4: cc int3 5: e8 de 44 f5 00 callq 0xf544e8 a: 48 c7 c7 a5 22 44 89 mov $0xffffffff894422a5,%rdi 11: 4c 89 f6 mov %r14,%rsi 14: 4c 89 f2 mov %r14,%rdx 17: 4c 89 f1 mov %r14,%rcx 1a: 4d 89 e0 mov %r12,%r8 1d: 41 89 e9 mov %ebp,%r9d 20: 53 push %rbx 21: e8 72 7f f4 00 callq 0xf47f98 26: 48 83 c4 08 add $0x8,%rsp 2a:* 0f 0b ud2 <-- trapping instruction 2c: 0f 0b ud2 2e: 0f 0b ud2 30: 0f 0b ud2 32: 66 0f 1f 44 00 00 nopw 0x0(%rax,%rax,1) 38: 90 nop 39: 90 nop 3a: 90 nop 3b: 90 nop 3c: 90 nop 3d: 90 nop 3e: 90 nop 3f: 90 nop Code starting with the faulting instruction =========================================== 0: 0f 0b ud2 2: 0f 0b ud2 4: 0f 0b ud2 6: 0f 0b ud2 8: 66 0f 1f 44 00 00 nopw 0x0(%rax,%rax,1) e: 90 nop f: 90 nop 10: 90 nop 11: 90 nop 12: 90 nop 13: 90 nop 14: 90 nop 15: 90 nop [ 30.948232][ T61] RSP: 0018:ffff9ca6001f7cf8 EFLAGS: 00010282 [ 30.949577][ T61] RAX: 0000000000000090 RBX: 0000000000000001 RCX: 373e749642a76800 [ 30.951426][ T61] RDX: ffff8f8d6fc2e100 RSI: ffff8f8d6fc20b88 RDI: ffff8f8d6fc20b88 [ 30.953270][ T61] RBP: 0000000000000002 R08: 0000000000007fff R09: ffffffff89653620 [ 30.955116][ T61] R10: 0000000000017ffd R11: 0000000000000004 R12: ffffffff88e02ee1 [ 30.956953][ T61] R13: ffffffff88e02ee1 R14: ffffffff87ff0855 R15: ffffffff8a4bd53a [ 30.958780][ T61] FS: 0000000000000000(0000) GS:ffff8f8d6fc00000(0000) knlGS:0000000000000000 [ 30.961357][ T61] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 30.962842][ T61] CR2: 00007f73b3af0660 CR3: 000000010098c000 CR4: 00000000000406f0 [ 30.964667][ T61] Call Trace: [ 30.965625][ T61] [ 30.966403][ T61] ? __die_body (arch/x86/kernel/dumpstack.c:421) [ 30.967440][ T61] ? die (arch/x86/kernel/dumpstack.c:? arch/x86/kernel/dumpstack.c:447) [ 30.968374][ T61] ? do_trap (arch/x86/kernel/traps.c:129 arch/x86/kernel/traps.c:155) [ 30.969404][ T61] ? __jump_label_patch (arch/x86/kernel/jump_label.c:73) [ 30.970605][ T61] ? __jump_label_patch (arch/x86/kernel/jump_label.c:73) [ 30.971801][ T61] ? handle_invalid_op (arch/x86/kernel/traps.c:175 arch/x86/kernel/traps.c:212) [ 30.972977][ T61] ? __jump_label_patch (arch/x86/kernel/jump_label.c:73) [ 30.974314][ T61] ? exc_invalid_op (arch/x86/kernel/traps.c:267) [ 30.982068][ T61] ? asm_exc_invalid_op (arch/x86/include/asm/idtentry.h:621) [ 30.983273][ T61] ? mem_cgroup_sk_alloc (arch/x86/include/asm/jump_label.h:27 mm/memcontrol.c:4783) [ 30.984463][ T61] ? __jump_label_patch (arch/x86/kernel/jump_label.c:73) [ 30.985683][ T61] ? mem_cgroup_sk_alloc (arch/x86/include/asm/jump_label.h:27 mm/memcontrol.c:4783) [ 30.986825][ T61] ? mem_cgroup_sk_alloc (mm/memcontrol.c:4787) [ 30.988009][ T61] ? mem_cgroup_sk_alloc (mm/memcontrol.c:4800) [ 30.989188][ T61] arch_jump_label_transform_queue (include/linux/jump_label.h:125 arch/x86/kernel/jump_label.c:138) [ 30.990552][ T61] __jump_label_update (kernel/jump_label.c:518) [ 30.991727][ T61] __static_key_slow_dec_cpuslocked (include/linux/mutex.h:196 kernel/jump_label.c:321) [ 30.991734][ T61] static_key_slow_dec (kernel/jump_label.c:327 kernel/jump_label.c:341) [ 30.991737][ T61] mem_cgroup_css_free (arch/x86/include/asm/jump_label.h:27 mm/memcontrol.c:3739) [ 30.991743][ T61] css_free_rwork_fn (kernel/cgroup/cgroup.c:5378) [ 30.991747][ T61] process_scheduled_works (kernel/workqueue.c:3236 kernel/workqueue.c:3312) [ 30.991752][ T61] worker_thread (include/linux/list.h:373 kernel/workqueue.c:948 kernel/workqueue.c:3391) [ 30.991757][ T61] ? __pfx_worker_thread (kernel/workqueue.c:3339) [ 30.991760][ T61] kthread (kernel/kthread.c:391) [ 30.991766][ T61] ? __pfx_kthread (kernel/kthread.c:342) [ 30.991770][ T61] ret_from_fork (arch/x86/kernel/process.c:153) [ 30.991774][ T61] ? __pfx_kthread (kernel/kthread.c:342) [ 30.991777][ T61] ret_from_fork_asm (arch/x86/entry/entry_64.S:257) [ 30.991782][ T61] [ 30.991783][ T61] Modules linked in: drm fuse loop dm_mod ip_tables [ 30.991815][ T61] ---[ end trace 0000000000000000 ]--- [ 30.991818][ T61] RIP: 0010:__jump_label_patch (arch/x86/kernel/jump_label.c:73) [ 30.991823][ T61] Code: cc cc cc cc cc e8 de 44 f5 00 48 c7 c7 a5 22 44 89 4c 89 f6 4c 89 f2 4c 89 f1 4d 89 e0 41 89 e9 53 e8 72 7f f4 00 48 83 c4 08 <0f> 0b 0f 0b 0f 0b 0f 0b 66 0f 1f 44 00 00 90 90 90 90 90 90 90 90 All code ======== 0: cc int3 1: cc int3 2: cc int3 3: cc int3 4: cc int3 5: e8 de 44 f5 00 callq 0xf544e8 a: 48 c7 c7 a5 22 44 89 mov $0xffffffff894422a5,%rdi 11: 4c 89 f6 mov %r14,%rsi 14: 4c 89 f2 mov %r14,%rdx 17: 4c 89 f1 mov %r14,%rcx 1a: 4d 89 e0 mov %r12,%r8 1d: 41 89 e9 mov %ebp,%r9d 20: 53 push %rbx 21: e8 72 7f f4 00 callq 0xf47f98 26: 48 83 c4 08 add $0x8,%rsp 2a:* 0f 0b ud2 <-- trapping instruction 2c: 0f 0b ud2 2e: 0f 0b ud2 30: 0f 0b ud2 32: 66 0f 1f 44 00 00 nopw 0x0(%rax,%rax,1) 38: 90 nop 39: 90 nop 3a: 90 nop 3b: 90 nop 3c: 90 nop 3d: 90 nop 3e: 90 nop 3f: 90 nop Code starting with the faulting instruction =========================================== 0: 0f 0b ud2 2: 0f 0b ud2 4: 0f 0b ud2 6: 0f 0b ud2 8: 66 0f 1f 44 00 00 nopw 0x0(%rax,%rax,1) e: 90 nop f: 90 nop 10: 90 nop 11: 90 nop 12: 90 nop 13: 90 nop 14: 90 nop 15: 90 nop The kernel config and materials to reproduce are available at: https://download.01.org/0day-ci/archive/20240908/202409082005.393050e2-oliver.sang@intel.com -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki