[23493] 0 23493 18279 12845 33 4 0 1000 syz-executor.1 [23506] 0 23506 18246 9134 28 4 0 1000 syz-executor.5 [23510] 0 23510 18246 9180 29 4 0 0 syz-executor.0 INFO: rcu_preempt detected stalls on CPUs/tasks: Tasks blocked on level-0 rcu_node (CPUs 0-1): P30274 (detected by 1, t=10503 jiffies, g=84266, c=84265, q=334) syz-executor.4 R running task 26768 30274 10568 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: 0033:0x45d009 RSP: 002b:00007ffee57c3e48 EFLAGS: 00000202 ORIG_RAX: 0000000000000038 RAX: ffffffffffffffda RBX: 00007ff0064ad700 RCX: 000000000045d009 RDX: 00007ff0064ad9d0 RSI: 00007ff0064acdb0 RDI: 00000000003d0f00 RBP: 00007ffee57c4060 R08: 00007ff0064ad700 R09: 00007ff0064ad700 R10: 00007ff0064ad9d0 R11: 0000000000000202 R12: 0000000000000000 R13: 00007ffee57c3eff R14: 00007ff0064ad9c0 R15: 000000000075bf2c syz-executor.4 R running task 26768 30274 10568 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: 0033:0x45d009 RSP: 002b:00007ffee57c3e48 EFLAGS: 00000202 ORIG_RAX: 0000000000000038 RAX: ffffffffffffffda RBX: 00007ff0064ad700 RCX: 000000000045d009 RDX: 00007ff0064ad9d0 RSI: 00007ff0064acdb0 RDI: 00000000003d0f00 RBP: 00007ffee57c4060 R08: 00007ff0064ad700 R09: 00007ff0064ad700 R10: 00007ff0064ad9d0 R11: 0000000000000202 R12: 0000000000000000 R13: 00007ffee57c3eff R14: 00007ff0064ad9c0 R15: 000000000075bf2c [23513] 0 23513 18246 12843 34 4 0 1000 syz-executor.2 [23542] 0 23542 18246 12844 33 4 0 1000 syz-executor.5 [23599] 0 23599 18246 12843 34 4 0 1000 syz-executor.3 [23614] 0 23614 18279 12845 33 4 0 1000 syz-executor.1 [23616] 0 23616 18213 8750 28 4 0 1000 syz-executor.5 [23662] 0 23662 18246 12844 33 4 0 1000 syz-executor.5 [23806] 0 23806 18246 9707 30 4 0 0 syz-executor.0 [23825] 0 23825 18246 12843 34 4 0 0 syz-executor.0 [23841] 0 23841 18246 12843 34 4 0 1000 syz-executor.3 [23861] 0 23861 18279 12845 34 4 0 1000 syz-executor.2 [23866] 0 23866 18246 8903 28 4 0 1000 syz-executor.1 [23897] 0 23897 18279 12726 33 4 0 1000 syz-executor.5 [23934] 0 23934 18246 11632 32 4 0 1000 syz-executor.1 [23957] 0 23957 18213 8749 27 4 0 1000 syz-executor.4 [23993] 0 23993 18246 9328 30 4 0 1000 syz-executor.3 [24000] 0 24000 18279 9778 30 4 0 1000 syz-executor.1 [24034] 0 24034 18246 12843 34 4 0 1000 syz-executor.3 [24050] 0 24050 18246 8751 29 4 0 1000 syz-executor.2 [24061] 0 24061 18279 12845 34 4 0 0 syz-executor.0 [24063] 0 24063 18213 8749 27 4 0 1000 syz-executor.4 [24108] 0 24108 18279 12845 34 4 0 0 syz-executor.0 [24119] 0 24119 18246 9634 30 4 0 1000 syz-executor.3 [24141] 0 24141 18213 8749 29 4 0 0 syz-executor.0 [24144] 0 24144 18246 8751 27 4 0 1000 syz-executor.4 [24150] 0 24150 18279 11563 32 4 0 1000 syz-executor.5 [24162] 0 24162 18246 10504 31 4 0 1000 syz-executor.1 [24186] 0 24186 18246 8751 27 4 0 1000 syz-executor.4 [24236] 0 24236 18246 8751 29 4 0 1000 syz-executor.2 [24246] 0 24246 18246 12843 32 4 0 1000 syz-executor.4 [24263] 0 24263 18213 8749 29 4 0 0 syz-executor.0 [24268] 0 24268 18279 9821 30 4 0 1000 syz-executor.5 [24274] 0 24274 18246 12843 34 4 0 1000 syz-executor.2 [24285] 0 24285 18246 9070 27 4 0 1000 syz-executor.4 [24304] 0 24304 18246 8751 29 4 0 1000 syz-executor.3 [24317] 0 24317 18246 12844 33 4 0 1000 syz-executor.5 [24370] 0 24370 18279 12845 34 4 0 1000 syz-executor.2 [24376] 0 24376 18246 8890 28 4 0 1000 syz-executor.1 [24385] 0 24385 18246 12843 34 4 0 0 syz-executor.0 [24419] 0 24419 18246 9930 30 4 0 1000 syz-executor.1 [24474] 0 24474 18213 8749 27 4 0 1000 syz-executor.4 [24497] 0 24497 18246 10772 31 4 0 1000 syz-executor.1 [24504] 0 24504 18180 8747 27 4 0 1000 syz-executor.4 [24515] 0 24515 18180 8747 29 4 0 1000 syz-executor.2 [24525] 0 24525 18246 10768 31 4 0 1000 syz-executor.1 [24552] 0 24552 18213 8749 29 4 0 0 syz-executor.0 [24567] 0 24567 18213 10344 30 4 0 1000 syz-executor.4