[15786] 0 15786 18180 8714 26 3 0 0 syz-executor.1 [15795] 0 15795 18378 9564 29 4 0 0 syz-executor.3 [15817] 0 15817 18147 8711 26 3 0 0 syz-executor.1 INFO: rcu_preempt detected stalls on CPUs/tasks: Tasks blocked on level-0 rcu_node (CPUs 0-1): P16713 (detected by 1, t=10502 jiffies, g=91889, c=91888, q=7) syz-executor.5 R running task 26816 16713 18633 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] __page_cache_alloc include/linux/pagemap.h:226 [inline] pagecache_get_page+0x246/0x7e0 mm/filemap.c:1517 filemap_fault+0x8da/0x18a0 mm/filemap.c:2518 ext4_filemap_fault+0x84/0xb0 fs/ext4/inode.c:6233 __do_fault+0x100/0x380 mm/memory.c:3223 do_shared_fault mm/memory.c:3688 [inline] do_fault mm/memory.c:3763 [inline] handle_pte_fault mm/memory.c:3989 [inline] __handle_mm_fault+0xfdf/0x2700 mm/memory.c:4113 handle_mm_fault+0x2f1/0x6da mm/memory.c:4150 __do_page_fault+0x477/0xbb0 arch/x86/mm/fault.c:1420 page_fault+0x42/0x50 arch/x86/entry/entry_64.S:1122 RIP: 75c9a0:0x75bf20 RSP: 0005:00000000000003e7 EFLAGS: 0075c9a0 syz-executor.5 R running task 26816 16713 18633 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] __page_cache_alloc include/linux/pagemap.h:226 [inline] pagecache_get_page+0x246/0x7e0 mm/filemap.c:1517 filemap_fault+0x8da/0x18a0 mm/filemap.c:2518 ext4_filemap_fault+0x84/0xb0 fs/ext4/inode.c:6233 __do_fault+0x100/0x380 mm/memory.c:3223 do_shared_fault mm/memory.c:3688 [inline] do_fault mm/memory.c:3763 [inline] handle_pte_fault mm/memory.c:3989 [inline] __handle_mm_fault+0xfdf/0x2700 mm/memory.c:4113 handle_mm_fault+0x2f1/0x6da mm/memory.c:4150 __do_page_fault+0x477/0xbb0 arch/x86/mm/fault.c:1420 page_fault+0x42/0x50 arch/x86/entry/entry_64.S:1122 RIP: 75c9a0:0x75bf20 RSP: 0005:00000000000003e7 EFLAGS: 0075c9a0 [15822] 0 15822 18213 8715 26 3 0 0 syz-executor.1 [15843] 0 15843 18180 8713 26 3 0 0 syz-executor.1 [15857] 0 15857 18147 8711 26 3 0 0 syz-executor.1 [15860] 0 15860 18180 8713 26 3 0 0 syz-executor.1 [15862] 0 15862 18378 12144 32 4 0 1000 syz-executor.4 [15885] 0 15885 18147 8710 25 3 0 0 syz-executor.1 [15899] 0 15899 18147 8710 25 3 0 0 syz-executor.1 [15909] 0 15909 18246 9504 34 4 0 0 syz-executor.0 [15923] 0 15923 18147 8710 25 3 0 0 syz-executor.1 [15925] 0 15925 18180 8713 26 3 0 0 syz-executor.1 [15931] 0 15931 18312 12845 33 4 0 1000 syz-executor.4 [15965] 0 15965 18147 8713 26 3 0 0 syz-executor.1 [15972] 0 15972 18213 8717 26 3 0 0 syz-executor.1 [16000] 0 16000 18147 8710 25 3 0 0 syz-executor.1 [16018] 0 16018 18279 12843 33 4 0 1000 syz-executor.4 [16032] 0 16032 18180 8714 26 3 0 0 syz-executor.1 [16036] 0 16036 18213 8716 26 3 0 0 syz-executor.1 [16049] 0 16049 18147 8710 25 3 0 0 syz-executor.1 [16053] 0 16053 18180 8713 26 3 0 0 syz-executor.1 [16058] 0 16058 18246 9115 32 4 0 0 syz-executor.0 [16105] 0 16105 18147 8711 26 3 0 0 syz-executor.1 [16112] 0 16112 18246 9496 34 4 0 0 syz-executor.0 [16118] 0 16118 18378 12065 32 4 0 1000 syz-executor.4 [16135] 0 16135 18147 8710 25 3 0 0 syz-executor.1 [16141] 0 16141 18180 8713 26 3 0 0 syz-executor.1 [16151] 0 16151 18246 9347 34 4 0 0 syz-executor.0 [16181] 0 16181 18147 8714 26 3 0 0 syz-executor.1 [16185] 0 16185 18180 8715 26 3 0 0 syz-executor.1 [16193] 0 16193 18213 8972 33 4 0 0 syz-executor.0 [16200] 0 16200 18378 9613 29 4 0 1000 syz-executor.4 [16215] 0 16215 18180 8713 26 3 0 0 syz-executor.1 [16219] 0 16219 18213 8716 26 3 0 0 syz-executor.1 [16232] 0 16232 18213 9091 33 4 0 0 syz-executor.0 [16235] 0 16235 18180 8704 25 3 0 0 syz-executor.1 [16240] 0 16240 18147 8711 26 3 0 0 syz-executor.1 [16242] 0 16242 18180 8713 26 3 0 0 syz-executor.1 [16246] 0 16246 18279 12845 34 4 0 0 syz-executor.3 [16264] 0 16264 18147 8710 25 3 0 0 syz-executor.1 [16272] 0 16272 18147 8711 25 3 0 0 syz-executor.1 [16290] 0 16290 18180 8704 25 3 0 0 syz-executor.1 [16292] 0 16292 18213 8716 26 3 0 0 syz-executor.1 [16307] 0 16307 18147 8711 26 3 0 0 syz-executor.1 [16316] 0 16316 18246 9162 33 4 0 0 syz-executor.0 [16319] 0 16319 18378 11104 33 4 0 0 syz-executor.3 [16329] 0 16329 18147 8711 26 3 0 0 syz-executor.1 [16331] 0 16331 18180 8713 26 3 0 0 syz-executor.1 [16352] 0 16352 18180 8713 26 3 0 0 syz-executor.1 [16363] 0 16363 18147 8710 25 3 0 0 syz-executor.1 [16366] 0 16366 18147 8711 26 3 0 0 syz-executor.1 [16373] 0 16373 18147 8711 26 3 0 0 syz-executor.1 [16378] 0 16378 18147 8710 25 3 0 0 syz-executor.1 [16400] 0 16400 18246 8894 33 4 0 0 syz-executor.0 [16402] 0 16402 18378 12846 34 4 0 0 syz-executor.3 [16410] 0 16410 18213 8714 25 3 0 0 syz-executor.1 [16413] 0 16413 5365 170 15 3 0 -1000 udevd [16460] 0 16460 18246 9189 32 4 0 0 syz-executor.0 [16467] 0 16467 18378 12854 34 4 0 0 syz-executor.3 [16484] 0 16484 18312 8721 26 3 0 0 syz-executor.1 [16485] 0 16485 18312 8721 26 3 0 0 syz-executor.1 [16506] 0 16506 18213 9596 33 4 0 0 syz-executor.0 [16536] 0 16536 18147 8712 26 3 0 0 syz-executor.1 [16547] 0 16547 18147 8710 25 3 0 0 syz-executor.1 [16549] 0 16549 18180 8713 26 3 0 0 syz-executor.1 [16554] 0 16554 18213 9132 30 4 0 0 syz-executor.0 [16592] 0 16592 18147 8711 25 3 0 0 syz-executor.1 [16596] 0 16596 18180 8714 25 3 0 0 syz-executor.1 [16599] 0 16599 18246 9170 34 4 0 0 syz-executor.0 [16611] 0 16611 18147 8711 25 3 0 0 syz-executor.1 [16628] 0 16628 18246 9157 34 4 0 0 syz-executor.0 [16651] 0 16651 18147 8710 25 3 0 0 syz-executor.1 [16663] 0 16663 18147 8711 26 3 0 0 syz-executor.1 [16666] 0 16666 18180 8713 26 3 0 0 syz-executor.1 [16687] 0 16687 5365 170 15 3 0 -1000 udevd [16694] 0 16694 18147 8710 25 3 0 0 syz-executor.1 [16702] 0 16702 18411 12237 34 4 0 0 syz-executor.3 [16713] 0 16713 18213 8733 29 4 0 1000 syz-executor.5 [16716] 0 16716 18411 12237 34 4 0 0 syz-executor.3 [16722] 0 16722 2097 25 9 3 0 -1000 blkid [16731] 0 16731 18180 8501 26 4 0 1000 syz-executor.2 [16732] 0 16732 18147 8711 26 3 0 0 syz-executor.1 [16733] 0 16733 1544 12 7 3 0 0 modprobe [16738] 0 16738 18180 8713 26 3 0 0 syz-executor.1 [16740] 0 16740 1545 13 8 3 0 0 modprobe [16742] 0 16742 18345 11215 31 4 0 1000 syz-executor.4 [16745] 0 16745 18213 9705 33 4 0 0 syz-executor.0