[12523] 0 12523 18147 8716 26 3 0 1000 syz-executor.0 [12526] 0 12526 18147 8720 26 3 0 1000 syz-executor.3 [12548] 0 12548 18312 12114 33 4 0 1000 syz-executor.3 INFO: rcu_preempt detected stalls on CPUs/tasks: Tasks blocked on level-0 rcu_node (CPUs 0-1): P1852 (detected by 1, t=10503 jiffies, g=53041, c=53040, q=14) syz-executor.3 R running task 24640 1852 1832 0x00000000 [12567] 0 12567 18147 8716 26 3 0 1000 syz-executor.0 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: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: c6702950:0x10834a RSP: 108852:0000000000002683 EFLAGS: 00000008 syz-executor.3 R running task 24640 1852 1832 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: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: c6702950:0x10834a RSP: 108852:0000000000002683 EFLAGS: 00000008 [12573] 0 12573 18147 8720 26 3 0 1000 syz-executor.3 [12589] 0 12589 18345 12856 34 4 0 1000 syz-executor.0 [12610] 0 12610 18147 8720 26 3 0 1000 syz-executor.3 [12624] 0 12624 18312 12765 33 4 0 1000 syz-executor.3 [12658] 0 12658 18147 8720 26 3 0 1000 syz-executor.3 [12672] 0 12672 18312 12375 33 4 0 1000 syz-executor.3 [12701] 0 12701 18147 8720 26 3 0 1000 syz-executor.3 [12723] 0 12723 18279 12855 33 4 0 1000 syz-executor.3 [12743] 0 12743 18147 8716 26 3 0 1000 syz-executor.0 [12773] 0 12773 18147 8720 26 3 0 1000 syz-executor.3 [12784] 0 12784 18312 12857 33 4 0 1000 syz-executor.3 [12804] 0 12804 18180 8718 26 3 0 1000 syz-executor.0 [12807] 0 12807 18147 8715 26 3 0 1000 syz-executor.1 [12825] 0 12825 18312 12852 33 4 0 1000 syz-executor.1 [12839] 0 12839 18147 8720 26 3 0 1000 syz-executor.3 [12874] 0 12874 18147 8715 26 3 0 1000 syz-executor.1 [12901] 0 12901 18180 8722 26 3 0 1000 syz-executor.3 [12912] 0 12912 18279 9159 33 4 0 1000 syz-executor.3 [12926] 0 12926 18147 8715 26 3 0 1000 syz-executor.1 [12934] 0 12934 18147 8720 26 3 0 1000 syz-executor.3 [12940] 0 12940 18246 9280 28 4 0 1000 syz-executor.1 [12963] 0 12963 18147 8715 26 3 0 1000 syz-executor.1 [12965] 0 12965 18147 8720 26 3 0 1000 syz-executor.3 [12986] 0 12986 18345 12855 33 4 0 1000 syz-executor.1 [13010] 0 13010 18147 8720 26 3 0 1000 syz-executor.3 [13035] 0 13035 18180 8709 26 3 0 1000 syz-executor.1 [13061] 0 13061 18147 8720 26 3 0 1000 syz-executor.3 [13066] 0 13066 18147 8718 26 3 0 1000 syz-executor.2 [13070] 0 13070 18147 8715 26 3 0 1000 syz-executor.1 [13108] 0 13108 18147 8718 26 3 0 1000 syz-executor.2 [13112] 0 13112 18147 8715 26 3 0 1000 syz-executor.1 [13119] 0 13119 18147 8720 26 3 0 1000 syz-executor.3 [13133] 0 13133 18312 12857 33 4 0 1000 syz-executor.3 [13153] 0 13153 18147 8718 26 3 0 1000 syz-executor.2 [13154] 0 13154 18147 8715 26 3 0 1000 syz-executor.1 [13158] 0 13158 18147 8720 26 3 0 1000 syz-executor.3 [13178] 0 13178 18312 12857 33 4 0 1000 syz-executor.3 [13198] 0 13198 18147 8715 26 3 0 1000 syz-executor.1 [13204] 0 13204 18147 8718 26 3 0 1000 syz-executor.2 [13209] 0 13209 18147 8720 26 3 0 1000 syz-executor.3 [13248] 0 13248 18147 8720 26 3 0 1000 syz-executor.3 [13255] 0 13255 18147 8715 26 3 0 1000 syz-executor.1 [13260] 0 13260 18312 12857 33 4 0 1000 syz-executor.3 [13277] 0 13277 18147 8718 26 3 0 1000 syz-executor.2 [13304] 0 13304 18180 8709 26 3 0 1000 syz-executor.1 [13310] 0 13310 18147 8720 26 3 0 1000 syz-executor.3 [13347] 0 13347 18147 8720 26 3 0 1000 syz-executor.3 [13353] 0 13353 18312 12857 33 4 0 1000 syz-executor.3 [13376] 0 13376 18147 8715 26 3 0 1000 syz-executor.1 [13382] 0 13382 18147 8720 26 3 0 1000 syz-executor.3 [13388] 0 13388 18279 12850 33 4 0 1000 syz-executor.1 [13415] 0 13415 18147 8720 26 3 0 1000 syz-executor.3 [13418] 0 13418 18147 8715 26 3 0 1000 syz-executor.1 [13431] 0 13431 18345 12855 33 4 0 1000 syz-executor.1 [13455] 0 13455 18147 8720 26 3 0 1000 syz-executor.3 [13466] 0 13466 18345 12860 33 4 0 1000 syz-executor.3 [13489] 0 13489 18147 8715 26 3 0 1000 syz-executor.1 [13496] 0 13496 18147 8720 26 3 0 1000 syz-executor.3 [13511] 0 13511 18279 12855 33 4 0 1000 syz-executor.3 [13530] 0 13530 18147 8715 26 3 0 1000 syz-executor.1 [13540] 0 13540 18345 12855 33 4 0 1000 syz-executor.1 [13553] 0 13553 18147 8720 26 3 0 1000 syz-executor.3 [13582] 0 13582 18147 8720 26 3 0 1000 syz-executor.3 [13594] 0 13594 18312 12857 33 4 0 1000 syz-executor.3 [13613] 0 13613 18180 8709 26 3 0 1000 syz-executor.1 [13644] 0 13644 18147 8720 26 3 0 1000 syz-executor.3 [13662] 0 13662 18312 12857 33 4 0 1000 syz-executor.3 [13701] 0 13701 18147 8720 26 3 0 1000 syz-executor.3 [13715] 0 13715 18312 12857 33 4 0 1000 syz-executor.3 [13734] 0 13734 18147 8715 26 3 0 1000 syz-executor.1 [13758] 0 13758 18147 8720 26 3 0 1000 syz-executor.3 [13820] 0 13820 18147 8720 26 3 0 1000 syz-executor.3 [13821] 0 13821 18147 8715 26 3 0 1000 syz-executor.1 [13870] 0 13870 18147 8715 26 3 0 1000 syz-executor.1 [13890] 0 13890 18147 8720 26 3 0 1000 syz-executor.3 [13925] 0 13925 18147 8720 26 3 0 1000 syz-executor.3 [13930] 0 13930 18147 8715 26 3 0 1000 syz-executor.1 [13980] 0 13980 18147 8720 26 3 0 1000 syz-executor.3 [13995] 0 13995 18279 12855 33 4 0 1000 syz-executor.3 [14035] 0 14035 18147 8720 26 3 0 1000 syz-executor.3 [14073] 0 14073 18147 8720 26 3 0 1000 syz-executor.3 [14093] 0 14093 18246 9160 27 4 0 1000 syz-executor.3 [14108] 0 14108 18147 8720 26 3 0 1000 syz-executor.3 [14120] 0 14120 18312 12857 33 4 0 1000 syz-executor.3 [14164] 0 14164 18147 8720 26 3 0 1000 syz-executor.3 [14176] 0 14176 18246 9396 28 4 0 1000 syz-executor.3 [14187] 0 14187 18147 8720 26 3 0 1000 syz-executor.3 [14201] 0 14201 18312 12857 33 4 0 1000 syz-executor.3 [14250] 0 14250 18147 8720 26 3 0 1000 syz-executor.3 [14259] 0 14259 18147 8718 26 3 0 1000 syz-executor.4 [14268] 0 14268 18345 12860 33 4 0 1000 syz-executor.3 [14310] 0 14310 18147 8720 26 3 0 1000 syz-executor.3 [14313] 0 14313 18147 8718 26 3 0 1000 syz-executor.4 [14339] 0 14339 18279 10613 29 3 0 1000 syz-executor.3