[27767] 0 27767 18213 8747 26 4 0 1000 syz-executor.5 [27801] 0 27801 18246 9127 26 4 0 1000 syz-executor.5 [27822] 0 27822 18246 8978 26 4 0 1000 syz-executor.5 INFO: rcu_preempt detected stalls on CPUs/tasks: Tasks blocked on level-0 rcu_node (CPUs 0-1): P1786 (detected by 1, t=10502 jiffies, g=80334, c=80333, q=16) syz-fuzzer R running task 25776 1786 1770 0x00000000 Call Trace: preempt_schedule_common+0x4f/0xd0 kernel/sched/core.c:3578 ___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:461 [inline] __alloc_pages_node include/linux/gfp.h:474 [inline] alloc_pages_node include/linux/gfp.h:488 [inline] __page_cache_alloc include/linux/pagemap.h:226 [inline] pagecache_get_page+0x246/0x7e0 mm/filemap.c:1516 filemap_fault+0x8da/0x18a0 mm/filemap.c:2517 ext4_filemap_fault+0x84/0xb0 fs/ext4/inode.c:6233 __do_fault+0x100/0x380 mm/memory.c:3223 do_read_fault mm/memory.c:3633 [inline] do_fault mm/memory.c:3759 [inline] handle_pte_fault mm/memory.c:3989 [inline] __handle_mm_fault+0x9bf/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: 0020:0x13 RSP: 11ec4e0:000000c420301140 EFLAGS: 00000000 syz-fuzzer R running task 25776 1786 1770 0x00000000 Call Trace: preempt_schedule_common+0x4f/0xd0 kernel/sched/core.c:3578 ___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:461 [inline] __alloc_pages_node include/linux/gfp.h:474 [inline] alloc_pages_node include/linux/gfp.h:488 [inline] __page_cache_alloc include/linux/pagemap.h:226 [inline] pagecache_get_page+0x246/0x7e0 mm/filemap.c:1516 filemap_fault+0x8da/0x18a0 mm/filemap.c:2517 ext4_filemap_fault+0x84/0xb0 fs/ext4/inode.c:6233 __do_fault+0x100/0x380 mm/memory.c:3223 do_read_fault mm/memory.c:3633 [inline] do_fault mm/memory.c:3759 [inline] handle_pte_fault mm/memory.c:3989 [inline] __handle_mm_fault+0x9bf/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: 0020:0x13 RSP: 11ec4e0:000000c420301140 EFLAGS: 00000000 [27873] 0 27873 18246 8952 26 4 0 1000 syz-executor.5 [27912] 0 27912 18246 8907 26 4 0 1000 syz-executor.5 [27963] 0 27963 18246 9160 26 4 0 1000 syz-executor.5 [28023] 0 28023 18246 9069 26 4 0 1000 syz-executor.5 [28095] 0 28095 18279 9007 26 4 0 1000 syz-executor.5 [28133] 0 28133 18279 9028 26 4 0 1000 syz-executor.5 [28170] 0 28170 18213 9320 27 4 0 1000 syz-executor.5 [28222] 0 28222 18213 9032 26 4 0 1000 syz-executor.5 [28227] 0 28227 18246 9103 26 4 0 1000 syz-executor.3 [28285] 0 28285 18213 9227 26 4 0 1000 syz-executor.5 [28326] 0 28326 18213 9235 26 4 0 1000 syz-executor.5 [28365] 0 28365 18246 9652 27 4 0 1000 syz-executor.3 [28374] 0 28374 18213 9596 27 4 0 1000 syz-executor.5 [28419] 0 28419 18246 8879 26 4 0 1000 syz-executor.3 [28512] 0 28512 18180 8745 26 4 0 1000 syz-executor.5 [28527] 0 28527 18247 9594 27 4 0 1000 syz-executor.4 [28549] 0 28549 18180 8745 26 4 0 1000 syz-executor.5 [28582] 0 28582 18180 8745 26 4 0 1000 syz-executor.5 [28723] 0 28723 18213 8747 26 4 0 1000 syz-executor.5 [28725] 0 28725 18246 9029 26 4 0 0 syz-executor.2 [28746] 0 28746 18213 8747 26 4 0 1000 syz-executor.5 [28773] 0 28773 18213 8748 26 4 0 0 syz-executor.2 [28780] 0 28780 18213 8747 26 4 0 1000 syz-executor.5 [28795] 0 28795 18213 8747 26 4 0 1000 syz-executor.5 [28813] 0 28813 18247 9986 28 4 0 1000 syz-executor.4 [28838] 0 28838 18213 8747 26 4 0 1000 syz-executor.5 [28865] 0 28865 18213 8747 26 4 0 1000 syz-executor.5 [28886] 0 28886 18213 8747 26 4 0 1000 syz-executor.5 [28923] 0 28923 18247 10261 28 4 0 0 syz-executor.2 [29001] 0 29001 18213 8747 26 4 0 1000 syz-executor.5 [29022] 0 29022 18213 8747 26 4 0 1000 syz-executor.5 [29053] 0 29053 18213 8747 26 4 0 1000 syz-executor.5 [29072] 0 29072 18213 8747 26 4 0 1000 syz-executor.5 [29127] 0 29127 18213 8747 26 4 0 1000 syz-executor.5 [29153] 0 29153 18213 8747 26 4 0 1000 syz-executor.5 [29168] 0 29168 18213 8747 26 4 0 1000 syz-executor.5 [29537] 0 29537 18246 10678 29 4 0 1000 syz-executor.5 [29591] 0 29591 18246 11358 31 4 0 0 syz-executor.2 [29829] 0 29829 18246 10633 29 4 0 1000 syz-executor.5 [29908] 0 29908 18246 9945 28 4 0 1000 syz-executor.5 [29942] 0 29942 18246 9806 28 4 0 1000 syz-executor.5 [29963] 0 29963 18246 9819 28 4 0 1000 syz-executor.5 [30037] 0 30037 18246 10726 29 4 0 1000 syz-executor.5 [30122] 0 30122 18246 10825 30 4 0 1000 syz-executor.5 [30150] 0 30150 18246 9683 27 4 0 1000 syz-executor.5 [30177] 0 30177 18246 9802 28 4 0 1000 syz-executor.5 [30193] 0 30193 18246 9731 27 4 0 1000 syz-executor.1 [30240] 0 30240 18246 10112 28 4 0 1000 syz-executor.5 [30278] 0 30278 18246 10432 29 4 0 0 syz-executor.2 [30448] 0 30448 18246 9933 28 4 0 1000 syz-executor.5 [30479] 0 30479 18246 11138 30 4 0 1000 syz-executor.5 [30506] 0 30506 18246 9971 28 4 0 1000 syz-executor.5 [30601] 0 30601 18246 10917 30 4 0 1000 syz-executor.5 [30626] 0 30626 18246 9824 28 4 0 1000 syz-executor.5 [30669] 0 30669 18246 10873 30 4 0 1000 syz-executor.5 [30767] 0 30767 18246 10238 28 4 0 1000 syz-executor.5 [30800] 0 30800 18246 10676 29 4 0 1000 syz-executor.5 [30831] 0 30831 18246 9908 28 4 0 1000 syz-executor.5 [30865] 0 30865 18246 10005 28 4 0 1000 syz-executor.5 [30884] 0 30884 18247 9585 27 4 0 1000 syz-executor.4 [30917] 0 30917 18246 10150 28 4 0 1000 syz-executor.5 [30944] 0 30944 18246 9843 28 4 0 1000 syz-executor.5 [30976] 0 30976 18246 10073 28 4 0 1000 syz-executor.5 [31011] 0 31011 18247 9141 26 4 0 1000 syz-executor.4 [31042] 0 31042 18246 9456 27 4 0 1000 syz-executor.5 [31068] 0 31068 18246 10378 29 4 0 1000 syz-executor.5 [31093] 0 31093 18246 10006 28 4 0 1000 syz-executor.5 [31118] 0 31118 18246 9959 28 4 0 1000 syz-executor.5 [31144] 0 31144 18246 9859 28 4 0 1000 syz-executor.5 [31170] 0 31170 18246 10028 28 4 0 1000 syz-executor.5 [31194] 0 31194 18246 9838 28 4 0 1000 syz-executor.5 [31239] 0 31239 18246 9302 26 3 0 1000 syz-executor.5 [31290] 0 31290 18246 9352 26 3 0 1000 syz-executor.5 [31310] 0 31310 18246 8918 26 4 0 1000 syz-executor.4 [31342] 0 31342 18246 9523 26 3 0 1000 syz-executor.5 [31515] 0 31515 18246 10374 29 4 0 1000 syz-executor.5 [31543] 0 31543 18246 9974 28 4 0 1000 syz-executor.5 [31599] 0 31599 18246 10052 28 4 0 1000 syz-executor.5 [31623] 0 31623 18246 10245 28 4 0 1000 syz-executor.5 [31692] 0 31692 18246 10095 28 4 0 1000 syz-executor.5 [31716] 0 31716 18246 10067 28 4 0 1000 syz-executor.5 [31778] 0 31778 18246 9939 28 4 0 1000 syz-executor.5 [31809] 0 31809 18246 10047 28 4 0 1000 syz-executor.5 [31834] 0 31834 18246 10069 28 4 0 1000 syz-executor.5 [31865] 0 31865 18246 10138 28 4 0 1000 syz-executor.5 [31893] 0 31893 18246 9966 28 4 0 1000 syz-executor.5 [31924] 0 31924 18246 9795 28 4 0 1000 syz-executor.5 [31958] 0 31958 18247 9156 26 4 0 1000 syz-executor.1 [32059] 0 32059 18246 9481 27 4 0 1000 syz-executor.5 [32085] 0 32085 18246 10098 28 4 0 1000 syz-executor.5 [32121] 0 32121 18246 9738 27 4 0 1000 syz-executor.5 [32150] 0 32150 18246 9825 28 4 0 1000 syz-executor.5 [32188] 0 32188 18214 8747 26 4 0 1000 syz-executor.4 [32191] 0 32191 18246 10279 28 4 0 1000 syz-executor.5 [32228] 0 32228 18246 9821 28 4 0 1000 syz-executor.5 [32271] 0 32271 18246 10115 28 4 0 1000 syz-executor.5 [32307] 0 32307 18246 10085 28 4 0 1000 syz-executor.5