[23447] 0 23447 18147 8743 27 4 0 1000 syz-executor.3 [23453] 0 23453 18147 8744 27 4 0 1000 syz-executor.4 [23465] 0 23465 18147 8744 27 4 0 1000 syz-executor.0 INFO: rcu_preempt detected stalls on CPUs/tasks: Tasks blocked on level-0 rcu_node (CPUs 0-1): P7856 (detected by 0, t=10503 jiffies, g=37072, c=37071, q=93) syz-executor.3 R running task 25312 7856 7855 0x00000000 Call Trace: preempt_schedule_common+0x4f/0xd0 kernel/sched/core.c:3579 ___preempt_schedule+0x16/0x18 __raw_spin_unlock include/linux/spinlock_api_smp.h:152 [inline] _raw_spin_unlock+0x3b/0x40 kernel/locking/spinlock.c:184 spin_unlock include/linux/spinlock.h:357 [inline] task_unlock include/linux/sched/task.h:136 [inline] dump_tasks mm/oom_kill.c:403 [inline] dump_header+0x7bb/0x848 mm/oom_kill.c:428 oom_kill_process.cold+0x10/0xde6 mm/oom_kill.c:861 out_of_memory mm/oom_kill.c:1084 [inline] out_of_memory+0x2d2/0xab0 mm/oom_kill.c:1023 __alloc_pages_may_oom mm/page_alloc.c:3415 [inline] __alloc_pages_slowpath mm/page_alloc.c:4112 [inline] __alloc_pages_nodemask+0x1988/0x2370 mm/page_alloc.c:4277 __alloc_pages include/linux/gfp.h:484 [inline] __alloc_pages_node include/linux/gfp.h:497 [inline] alloc_pages_node include/linux/gfp.h:511 [inline] alloc_thread_stack_node kernel/fork.c:243 [inline] dup_task_struct kernel/fork.c:529 [inline] copy_process.part.0+0x2c9/0x66c0 kernel/fork.c:1729 copy_process kernel/fork.c:1679 [inline] _do_fork+0x197/0xce0 kernel/fork.c:2220 do_syscall_64+0x19b/0x520 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x42/0xb7 RIP: 0033:0x4587ea RSP: 002b:00007ffeefb313b0 EFLAGS: 00000246 ORIG_RAX: 0000000000000038 RAX: ffffffffffffffda RBX: 00007ffeefb313b0 RCX: 00000000004587ea RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011 RBP: 00007ffeefb313f0 R08: 0000000000000001 R09: 00000000020b6940 R10: 00000000020b6c10 R11: 0000000000000246 R12: 0000000000000001 R13: 0000000000000000 R14: 0000000000000000 R15: 00007ffeefb31440 syz-executor.3 R running task 25312 7856 7855 0x00000000 Call Trace: preempt_schedule_common+0x4f/0xd0 kernel/sched/core.c:3579 ___preempt_schedule+0x16/0x18 __raw_spin_unlock include/linux/spinlock_api_smp.h:152 [inline] _raw_spin_unlock+0x3b/0x40 kernel/locking/spinlock.c:184 spin_unlock include/linux/spinlock.h:357 [inline] task_unlock include/linux/sched/task.h:136 [inline] dump_tasks mm/oom_kill.c:403 [inline] dump_header+0x7bb/0x848 mm/oom_kill.c:428 oom_kill_process.cold+0x10/0xde6 mm/oom_kill.c:861 out_of_memory mm/oom_kill.c:1084 [inline] out_of_memory+0x2d2/0xab0 mm/oom_kill.c:1023 __alloc_pages_may_oom mm/page_alloc.c:3415 [inline] __alloc_pages_slowpath mm/page_alloc.c:4112 [inline] __alloc_pages_nodemask+0x1988/0x2370 mm/page_alloc.c:4277 __alloc_pages include/linux/gfp.h:484 [inline] __alloc_pages_node include/linux/gfp.h:497 [inline] alloc_pages_node include/linux/gfp.h:511 [inline] alloc_thread_stack_node kernel/fork.c:243 [inline] dup_task_struct kernel/fork.c:529 [inline] copy_process.part.0+0x2c9/0x66c0 kernel/fork.c:1729 copy_process kernel/fork.c:1679 [inline] _do_fork+0x197/0xce0 kernel/fork.c:2220 do_syscall_64+0x19b/0x520 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x42/0xb7 RIP: 0033:0x4587ea RSP: 002b:00007ffeefb313b0 EFLAGS: 00000246 ORIG_RAX: 0000000000000038 RAX: ffffffffffffffda RBX: 00007ffeefb313b0 RCX: 00000000004587ea RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011 RBP: 00007ffeefb313f0 R08: 0000000000000001 R09: 00000000020b6940 R10: 00000000020b6c10 R11: 0000000000000246 R12: 0000000000000001 R13: 0000000000000000 R14: 0000000000000000 R15: 00007ffeefb31440 [23511] 0 23511 18147 8744 27 4 0 1000 syz-executor.0 [23509] 0 23509 18180 8745 27 4 0 1000 syz-executor.3 [23580] 0 23580 18147 8744 27 4 0 1000 syz-executor.0 [23586] 0 23586 18147 8745 27 4 0 1000 syz-executor.5 [23592] 0 23592 18147 8744 27 4 0 1000 syz-executor.0 [23598] 0 23598 18147 8745 27 4 0 1000 syz-executor.5 [23603] 0 23603 18147 8744 27 4 0 1000 syz-executor.0 [23609] 0 23609 18147 8745 27 4 0 1000 syz-executor.5 [23666] 0 23666 18180 8746 27 4 0 1000 syz-executor.0 [23673] 0 23673 18147 8744 27 4 0 1000 syz-executor.4 [23701] 0 23701 18180 8746 27 4 0 1000 syz-executor.0 [23708] 0 23708 18180 8747 27 4 0 1000 syz-executor.5 [23721] 0 23721 18147 8744 27 4 0 1000 syz-executor.0 [23728] 0 23728 18147 8745 27 4 0 1000 syz-executor.5 [23734] 0 23734 18147 8744 27 4 0 1000 syz-executor.0 [23747] 0 23747 18147 8744 27 4 0 1000 syz-executor.0 [23750] 0 23750 18180 8747 27 4 0 1000 syz-executor.5 [23766] 0 23766 18147 8743 27 4 0 1000 syz-executor.3 [23767] 0 23767 18180 8746 27 4 0 1000 syz-executor.0 [23777] 0 23777 18147 8745 27 4 0 1000 syz-executor.5 [23846] 0 23846 18147 8744 27 4 0 1000 syz-executor.0 [23861] 0 23861 18180 8747 27 4 0 1000 syz-executor.5 [23862] 0 23862 18147 8744 27 4 0 1000 syz-executor.0 [23900] 0 23900 18180 8746 28 4 0 1000 syz-executor.4 [23915] 0 23915 18147 8744 27 4 0 1000 syz-executor.4 [23946] 0 23946 18147 8743 27 4 0 1000 syz-executor.3 [23954] 0 23954 18147 8745 27 4 0 1000 syz-executor.5 [23975] 0 23975 18180 8747 27 4 0 1000 syz-executor.5 [24072] 0 24072 18147 8744 27 4 0 1000 syz-executor.1 [24083] 0 24083 18180 8746 27 4 0 1000 syz-executor.1 [24087] 0 24087 18147 8744 27 4 0 1000 syz-executor.0 [24100] 0 24100 18147 8743 27 4 0 1000 syz-executor.3 [24112] 0 24112 18180 8746 27 4 0 1000 syz-executor.1 [24181] 0 24181 18180 8747 27 4 0 1000 syz-executor.5 [24198] 0 24198 18180 8747 27 4 0 1000 syz-executor.5 [24217] 0 24217 18180 8747 27 4 0 1000 syz-executor.5 [24251] 0 24251 18147 8745 27 4 0 1000 syz-executor.5 [24326] 0 24326 18147 8745 27 4 0 1000 syz-executor.5 [24344] 0 24344 18180 8747 27 4 0 1000 syz-executor.5 [24359] 0 24359 18147 8745 27 4 0 1000 syz-executor.5 [24378] 0 24378 18147 8745 27 4 0 1000 syz-executor.5 [24398] 0 24398 18147 8745 27 4 0 1000 syz-executor.5 [24443] 0 24443 18180 8747 27 4 0 1000 syz-executor.5 [24444] 0 24444 18180 8746 28 4 0 1000 syz-executor.4 [24581] 0 24581 18180 8747 27 4 0 1000 syz-executor.5 [24604] 0 24604 18180 8747 27 4 0 1000 syz-executor.5 [24682] 0 24682 18180 8747 27 4 0 1000 syz-executor.5 [24690] 0 24690 18180 8746 28 4 0 1000 syz-executor.4 [24770] 0 24770 18147 8745 27 4 0 1000 syz-executor.5 [24807] 0 24807 18180 8746 27 4 0 1000 syz-executor.1 [24832] 0 24832 18147 8743 27 4 0 1000 syz-executor.3 [24856] 0 24856 18147 8743 27 4 0 1000 syz-executor.3 [24863] 0 24863 18147 8745 27 4 0 1000 syz-executor.5 [24910] 0 24910 18147 8743 27 4 0 1000 syz-executor.3 [24932] 0 24932 18147 8744 27 4 0 1000 syz-executor.1 [25032] 0 25032 18180 8746 28 4 0 1000 syz-executor.4 [25070] 0 25070 18147 8745 27 4 0 1000 syz-executor.5 [26060] 0 26060 18180 8745 27 4 0 1000 syz-executor.3 [26160] 0 26160 18180 8745 27 4 0 1000 syz-executor.3 [26217] 0 26217 18147 8745 27 4 0 1000 syz-executor.2 [26229] 0 26229 18147 8713 26 3 0 1000 syz-executor.2 [26315] 0 26315 18180 8747 27 4 0 1000 syz-executor.2 [26348] 0 26348 18180 8745 27 4 0 1000 syz-executor.3 [26395] 0 26395 18147 8745 27 4 0 1000 syz-executor.2 [26407] 0 26407 18147 8745 27 4 0 1000 syz-executor.2 [26416] 0 26416 18147 8744 27 4 0 1000 syz-executor.4 [26430] 0 26430 18180 8747 27 4 0 1000 syz-executor.2 [26745] 0 26745 18147 8744 27 4 0 1000 syz-executor.4 [26769] 0 26769 18147 8744 27 4 0 1000 syz-executor.4 [26794] 0 26794 18147 8744 27 4 0 1000 syz-executor.4 [27313] 0 27313 18147 8744 27 4 0 1000 syz-executor.4 [27572] 0 27572 18147 8744 27 4 0 1000 syz-executor.4 [27582] 0 27582 18147 8744 27 4 0 1000 syz-executor.4 [27658] 0 27658 18147 8744 27 4 0 1000 syz-executor.4 [27763] 0 27763 18180 8746 28 4 0 1000 syz-executor.4 [27911] 0 27911 18147 8744 27 4 0 1000 syz-executor.4 [27935] 0 27935 18147 8743 26 4 0 1000 syz-executor.4 [28048] 0 28048 18147 8744 27 4 0 1000 syz-executor.4 [28185] 0 28185 18147 8744 27 4 0 1000 syz-executor.4 [28217] 0 28217 18147 8744 27 4 0 1000 syz-executor.4 [28226] 0 28226 18147 8744 27 4 0 1000 syz-executor.4 [28232] 0 28232 18147 8744 27 4 0 1000 syz-executor.4 [28238] 0 28238 18147 8744 27 4 0 1000 syz-executor.4 [28245] 0 28245 18147 8744 27 4 0 1000 syz-executor.4 [28328] 0 28328 18147 8744 27 4 0 1000 syz-executor.4 [28952] 0 28952 18147 8744 27 4 0 1000 syz-executor.4 [29244] 0 29244 18180 8746 28 4 0 1000 syz-executor.4 [29494] 0 29494 18147 8744 27 4 0 1000 syz-executor.4 [29507] 0 29507 18147 8745 27 4 0 1000 syz-executor.2 [29638] 0 29638 18147 8744 27 4 0 1000 syz-executor.4 [29753] 0 29753 18180 8747 27 4 0 1000 syz-executor.2 [29959] 0 29959 18213 8748 27 4 0 0 syz-executor.0 [30110] 0 30110 18147 8744 27 4 0 0 syz-executor.0 [30118] 0 30118 18246 8750 27 4 0 0 syz-executor.0 [30158] 0 30158 18213 8748 27 4 0 0 syz-executor.0 [30164] 0 30164 18213 8748 27 4 0 0 syz-executor.0 [30194] 0 30194 18213 8748 27 4 0 0 syz-executor.0 [30211] 0 30211 18147 8746 28 4 0 0 syz-executor.0 [30212] 0 30212 18147 8746 28 4 0 0 syz-executor.0 [30380] 0 30380 18180 8746 27 4 0 0 syz-executor.0 [30388] 0 30388 18180 8746 27 4 0 0 syz-executor.0 [30401] 0 30401 18180 8746 27 4 0 0 syz-executor.0 [30624] 0 30624 18147 8744 27 4 0 1000 syz-executor.4 [30637] 0 30637 18147 8744 27 4 0 1000 syz-executor.4 [30642] 0 30642 18147 8744 27 4 0 1000 syz-executor.4 [30687] 0 30687 18147 8744 27 4 0 0 syz-executor.0 [30691] 0 30691 18279 8752 27 4 0 0 syz-executor.0 [30716] 0 30716 18279 8752 27 4 0 0 syz-executor.0 [30741] 0 30741 18147 8744 27 4 0 1000 syz-executor.4 [30748] 0 30748 18147 8744 27 4 0 1000 syz-executor.4 [30752] 0 30752 18147 8743 26 4 0 1000 syz-executor.4 [30757] 0 30757 18147 8744 27 4 0 1000 syz-executor.4 [30768] 0 30768 18147 8744 27 4 0 1000 syz-executor.4 [30830] 0 30830 18147 8744 27 4 0 0 syz-executor.0 [30904] 0 30904 18147 8744 27 4 0 0 syz-executor.0 [30948] 0 30948 18147 8744 27 4 0 1000 syz-executor.4 [31013] 0 31013 18147 8744 27 4 0 1000 syz-executor.4 [31022] 0 31022 18180 8746 27 4 0 0 syz-executor.0 [31032] 0 31032 18147 8744 27 4 0 0 syz-executor.0 [31043] 0 31043 18147 8744 27 4 0 0 syz-executor.0