As not doing so would avoid this altogether. > > > __run_posix_cpu_timers kernel/time/posix-cpu-timers.c:1219 [inline] > > run_posix_cpu_timers+0x6ac/0x810 kernel/time/posix-cpu-timers.c:1418 > > tick_sched_handle kernel/time/tick-sched.c:276 [inline] > > tick_nohz_handler+0x37c/0x500 kernel/time/tick-sched.c:297 > > __run_hrtimer kernel/time/hrtimer.c:1691 [inline] > > __hrtimer_run_queues+0x551/0xd50 kernel/time/hrtimer.c:1755 > > hrtimer_interrupt+0x396/0x990 kernel/time/hrtimer.c:1817 > > local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1038 [inline] > > __sysvec_apic_timer_interrupt+0x110/0x420 arch/x86/kernel/apic/apic.c:1055 > > instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1049 [inline] > > sysvec_apic_timer_interrupt+0x52/0xc0 arch/x86/kernel/apic/apic.c:1049 > > asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 > > RIP: 0010:variable_ffs arch/x86/include/asm/bitops.h:321 [inline] > > RIP: 0010:handle_softirqs+0x1e3/0x980 kernel/softirq.c:542 > > Code: 7c 24 70 45 0f b7 e4 48 c7 c7 20 c5 09 8c e8 c4 6c 6c 0a 65 66 c7 05 32 53 ac 7e 00 00 e8 05 67 45 00 fb 49 c7 c6 c0 a0 60 8e <b8> ff ff ff ff 41 0f bc c4 41 89 c7 41 ff c7 0f 84 eb 03 00 00 44 > > RSP: 0018:ffffc90000a18e40 EFLAGS: 00000286 > > RAX: 959a1636e72c7c00 RBX: ffffc90000a18ee0 RCX: ffffffff8170c69a > > RDX: dffffc0000000000 RSI: ffffffff8c0ad3a0 RDI: ffffffff8c604dc0 > > RBP: ffffc90000a18f50 R08: ffffffff942cd847 R09: 1ffffffff2859b08 > > R10: dffffc0000000000 R11: fffffbfff2859b09 R12: 0000000000000010 > > R13: 0000000000000000 R14: ffffffff8e60a0c0 R15: 1ffff11003cec000 > > __do_softirq kernel/softirq.c:588 [inline] > > invoke_softirq kernel/softirq.c:428 [inline] > > __irq_exit_rcu+0xf4/0x1c0 kernel/softirq.c:637 > > irq_exit_rcu+0x9/0x30 kernel/softirq.c:649 > > common_interrupt+0xb9/0xd0 arch/x86/kernel/irq.c:278 > > </IRQ> > > <TASK> > > asm_common_interrupt+0x26/0x40 arch/x86/include/asm/idtentry.h:693 > > RIP: 0010:zap_pmd_range mm/memory.c:1753 [inline] > > RIP: 0010:zap_pud_range mm/memory.c:1782 [inline] > > RIP: 0010:zap_p4d_range mm/memory.c:1803 [inline] > > RIP: 0010:unmap_page_range+0x1ffd/0x4230 mm/memory.c:1824 > > Code: 02 00 00 4c 8d bc 24 c0 02 00 00 48 8b 44 24 48 48 98 48 89 c1 48 c1 e1 0c 49 01 cd 4c 3b ac 24 98 00 00 00 0f 84 44 14 00 00 <4c> 89 6c 24 28 48 8b 5c 24 38 48 8d 1c c3 e8 50 01 b2 ff e9 ec e9 > > RSP: 0018:ffffc9000303f560 EFLAGS: 00000287 > > RAX: 0000000000000001 RBX: ffff88803023b5c8 RCX: 0000000000001000 > > RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 > > RBP: ffffc9000303f890 R08: ffffffff81e30b9c R09: 1ffffd4000333df6 > > R10: dffffc0000000000 R11: fffff94000333df7 R12: dffffc0000000000 > > R13: 00000000200ba000 R14: ffffc9000303f7e0 R15: ffffc9000303f820 > > unmap_vmas+0x3cc/0x5f0 mm/memory.c:1914 > > exit_mmap+0x292/0xcb0 mm/mmap.c:1693 > > __mmput+0x115/0x390 kernel/fork.c:1344 > > exit_mm+0x220/0x310 kernel/exit.c:570 > > do_exit+0x9b2/0x28e0 kernel/exit.c:925 > > do_group_exit+0x207/0x2c0 kernel/exit.c:1087 > > __do_sys_exit_group kernel/exit.c:1098 [inline] > > __se_sys_exit_group kernel/exit.c:1096 [inline] > > __x64_sys_exit_group+0x3f/0x40 kernel/exit.c:1096 > > x64_sys_call+0x2634/0x2640 arch/x86/include/generated/asm/syscalls_64.h:232 > > do_syscall_x64 arch/x86/entry/common.c:52 [inline] > > do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 > > entry_SYSCALL_64_after_hwframe+0x77/0x7f > > RIP: 0033:0x7faae5f7e719 > > Code: Unable to access opcode bytes at 0x7faae5f7e6ef. > > RSP: 002b:00007ffc97dbc998 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 > > RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007faae5f7e719 > > RDX: 0000000000000064 RSI: 0000000000000000 RDI: 0000000000000000 > > RBP: 00007ffc97dbc9ec R08: 00007ffc97dbca7f R09: 0000000000013547 > > R10: 0000000000000001 R11: 0000000000000246 R12: 0000000000000032 > > R13: 0000000000013547 R14: 0000000000013547 R15: 00007ffc97dbca40 > > </TASK> > > ---------------- > > Code disassembly (best guess): > > 0: 7c 24 jl 0x26 > > 2: 70 45 jo 0x49 > > 4: 0f b7 e4 movzwl %sp,%esp > > 7: 48 c7 c7 20 c5 09 8c mov $0xffffffff8c09c520,%rdi > > e: e8 c4 6c 6c 0a call 0xa6c6cd7 > > 13: 65 66 c7 05 32 53 ac movw $0x0,%gs:0x7eac5332(%rip) # 0x7eac534f > > 1a: 7e 00 00 > > 1d: e8 05 67 45 00 call 0x456727 > > 22: fb sti > > 23: 49 c7 c6 c0 a0 60 8e mov $0xffffffff8e60a0c0,%r14 > > * 2a: b8 ff ff ff ff mov $0xffffffff,%eax <-- trapping instruction > > 2f: 41 0f bc c4 bsf %r12d,%eax > > 33: 41 89 c7 mov %eax,%r15d > > 36: 41 ff c7 inc %r15d > > 39: 0f 84 eb 03 00 00 je 0x42a > > 3f: 44 rex.R > > > > > > --- > > This report is generated by a bot. It may contain errors. > > See https://goo.gl/tpsmEJ for more information about syzbot. > > syzbot engineers can be reached at syzkaller@xxxxxxxxxxxxxxxx. > > > > syzbot will keep track of this issue. See: > > https://goo.gl/tpsmEJ#status for how to communicate with syzbot. > > > > If the report is already addressed, let syzbot know by replying with: > > #syz fix: exact-commit-title > > > > If you want syzbot to run the reproducer, reply with: > > #syz test: git://repo/address.git branch-or-commit-hash > > If you attach or paste a git patch, syzbot will apply it before testing. > > > > If you want to overwrite report's subsystems, reply with: > > #syz set subsystems: new-subsystem > > (See the list of subsystem names on the web dashboard) > > > > If the report is a duplicate of another one, reply with: > > #syz dup: exact-subject-of-another-report > > > > If you want to undo deduplication, reply with: > > #syz undup >
