[16719] 0 16719 18280 11536 31 4 0 1000 syz-executor.2 [17422] 0 17422 18247 9705 27 4 0 1000 syz-executor.2 [17633] 0 17633 18280 10843 30 4 0 1000 syz-executor.5 [17858] 0 17858 18214 9201 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): P2825 (detected by 1, t=10502 jiffies, g=80700, c=80699, q=17) getty R running task 24864 2825 1 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_zeroed_user_highpage_movable include/linux/highmem.h:184 [inline] do_anonymous_page mm/memory.c:3133 [inline] handle_pte_fault mm/memory.c:3987 [inline] __handle_mm_fault+0x1116/0x2700 mm/memory.c:4113 handle_mm_fault+0x3c3/0x6da mm/memory.c:4150 __do_page_fault+0x477/0xbb0 arch/x86/mm/fault.c:1420 page_fault+0x22/0x50 arch/x86/entry/entry_64.S:1122 RIP: 0010:copy_user_enhanced_fast_string+0x7/0x10 arch/x86/lib/copy_user_64.S:181 RSP: 0000:ffff888019effb48 EFLAGS: 00010206 RAX: ffffed100254b60f RBX: 0000000000000076 RCX: 0000000000000076 RDX: 0000000000000076 RSI: ffff888012a5b000 RDI: 00007fb520219000 RBP: 00007fb520219000 R08: 00007fb520219000 R09: ffffed100254b60f R10: ffffed100254b60e R11: ffff888012a5b075 R12: ffff888012a5b000 R13: 00007ffffffff000 R14: 00007fb520219076 R15: ffff888019effd10 copy_user_generic arch/x86/include/asm/uaccess_64.h:37 [inline] raw_copy_to_user arch/x86/include/asm/uaccess_64.h:112 [inline] copyout+0x99/0xc0 lib/iov_iter.c:137 copy_page_to_iter_iovec lib/iov_iter.c:206 [inline] copy_page_to_iter+0x367/0xd50 lib/iov_iter.c:723 generic_file_buffered_read mm/filemap.c:2134 [inline] generic_file_read_iter+0x987/0x1b70 mm/filemap.c:2311 ext4_file_read_iter+0x119/0x180 fs/ext4/file.c:75 call_read_iter include/linux/fs.h:1792 [inline] new_sync_read fs/read_write.c:401 [inline] __vfs_read+0x3fe/0x590 fs/read_write.c:413 vfs_read+0x131/0x330 fs/read_write.c:447 SYSC_read fs/read_write.c:578 [inline] SyS_read+0x102/0x250 fs/read_write.c:571 do_syscall_64+0x19b/0x520 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x42/0xb7 RIP: 0033:0x7fb51fb3f310 RSP: 002b:00007ffcceef43f8 EFLAGS: 00000202 ORIG_RAX: 0000000000000000 RAX: ffffffffffffffda RBX: 0000000001a17a20 RCX: 00007fb51fb3f310 RDX: 0000000000001000 RSI: 00007fb520219000 RDI: 0000000000000003 RBP: 0000000000000000 R08: 00000000ffffffff R09: 0000000000000000 R10: 0000000000000022 R11: 0000000000000202 R12: 000000000000002c R13: 00007ffcceef4550 R14: 000000000000002c R15: 00007ffcceef4550 getty R running task 24864 2825 1 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_zeroed_user_highpage_movable include/linux/highmem.h:184 [inline] do_anonymous_page mm/memory.c:3133 [inline] handle_pte_fault mm/memory.c:3987 [inline] __handle_mm_fault+0x1116/0x2700 mm/memory.c:4113 handle_mm_fault+0x3c3/0x6da mm/memory.c:4150 __do_page_fault+0x477/0xbb0 arch/x86/mm/fault.c:1420 page_fault+0x22/0x50 arch/x86/entry/entry_64.S:1122 RIP: 0010:copy_user_enhanced_fast_string+0x7/0x10 arch/x86/lib/copy_user_64.S:181 RSP: 0000:ffff888019effb48 EFLAGS: 00010206 RAX: ffffed100254b60f RBX: 0000000000000076 RCX: 0000000000000076 RDX: 0000000000000076 RSI: ffff888012a5b000 RDI: 00007fb520219000 RBP: 00007fb520219000 R08: 00007fb520219000 R09: ffffed100254b60f R10: ffffed100254b60e R11: ffff888012a5b075 R12: ffff888012a5b000 R13: 00007ffffffff000 R14: 00007fb520219076 R15: ffff888019effd10 copy_user_generic arch/x86/include/asm/uaccess_64.h:37 [inline] raw_copy_to_user arch/x86/include/asm/uaccess_64.h:112 [inline] copyout+0x99/0xc0 lib/iov_iter.c:137 copy_page_to_iter_iovec lib/iov_iter.c:206 [inline] copy_page_to_iter+0x367/0xd50 lib/iov_iter.c:723 generic_file_buffered_read mm/filemap.c:2134 [inline] generic_file_read_iter+0x987/0x1b70 mm/filemap.c:2311 ext4_file_read_iter+0x119/0x180 fs/ext4/file.c:75 call_read_iter include/linux/fs.h:1792 [inline] new_sync_read fs/read_write.c:401 [inline] __vfs_read+0x3fe/0x590 fs/read_write.c:413 vfs_read+0x131/0x330 fs/read_write.c:447 SYSC_read fs/read_write.c:578 [inline] SyS_read+0x102/0x250 fs/read_write.c:571 do_syscall_64+0x19b/0x520 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x42/0xb7 RIP: 0033:0x7fb51fb3f310 RSP: 002b:00007ffcceef43f8 EFLAGS: 00000202 ORIG_RAX: 0000000000000000 RAX: ffffffffffffffda RBX: 0000000001a17a20 RCX: 00007fb51fb3f310 RDX: 0000000000001000 RSI: 00007fb520219000 RDI: 0000000000000003 RBP: 0000000000000000 R08: 00000000ffffffff R09: 0000000000000000 R10: 0000000000000022 R11: 0000000000000202 R12: 000000000000002c R13: 00007ffcceef4550 R14: 000000000000002c R15: 00007ffcceef4550 [18035] 0 18035 18214 8748 26 4 0 1000 syz-executor.5 [18082] 0 18082 18247 9657 27 4 0 1000 syz-executor.5 [18829] 0 18829 18279 12063 32 4 0 1000 syz-executor.5 [18943] 0 18943 18213 8750 26 4 0 1000 syz-executor.3 [19007] 0 19007 18213 8749 26 4 0 1000 syz-executor.5 [19617] 0 19617 18280 9249 26 4 0 1000 syz-executor.5 [20012] 0 20012 18279 10680 29 4 0 1000 syz-executor.2 [20218] 0 20218 18246 9476 27 4 0 1000 syz-executor.2 [20645] 0 20645 18280 10438 29 4 0 1000 syz-executor.2 [20651] 0 20651 18280 8950 26 4 0 1000 syz-executor.4 [20699] 0 20699 18247 8990 26 4 0 1000 syz-executor.4 [20774] 0 20774 18246 8827 26 4 0 1000 syz-executor.5 [20812] 0 20812 18280 11330 31 4 0 1000 syz-executor.4 [20813] 0 20813 18247 8863 26 4 0 1000 syz-executor.5 [20851] 0 20851 18279 8846 26 4 0 1000 syz-executor.4 [20868] 0 20868 18247 9803 28 4 0 1000 syz-executor.5 [20897] 0 20897 18247 8776 26 4 0 1000 syz-executor.4 [20912] 0 20912 18247 9129 26 4 0 1000 syz-executor.5 [21019] 0 21019 18246 8753 27 4 0 1000 syz-executor.5 [21071] 0 21071 18247 8749 26 4 0 1000 syz-executor.4 [21111] 0 21111 18247 8844 26 4 0 1000 syz-executor.4 [21134] 0 21134 18181 8745 26 4 0 1000 syz-executor.5 [21265] 0 21265 18279 9506 27 4 0 1000 syz-executor.5 [21270] 0 21270 18247 9288 27 4 0 1000 syz-executor.4 [21313] 0 21313 18280 9048 26 4 0 1000 syz-executor.5 [21334] 0 21334 18247 9215 26 4 0 1000 syz-executor.5 [21511] 0 21511 18247 8898 26 4 0 1000 syz-executor.4 [21816] 0 21816 18247 9674 27 4 0 1000 syz-executor.5 [21971] 0 21971 18247 8936 26 4 0 1000 syz-executor.4 [21992] 0 21992 18246 9334 27 4 0 1000 syz-executor.2 [21997] 0 21997 18247 8944 26 4 0 1000 syz-executor.4 [22068] 0 22068 18247 9770 27 4 0 1000 syz-executor.5 [22163] 0 22163 18213 8717 25 3 0 1000 syz-executor.4 [22456] 0 22456 18247 9601 27 4 0 1000 syz-executor.2 [22638] 0 22638 18247 9644 27 4 0 1000 syz-executor.2 [22652] 0 22652 18246 9479 27 4 0 1000 syz-executor.4 [22658] 0 22658 18214 8750 26 4 0 1000 syz-executor.5 [22708] 0 22708 18280 8915 26 4 0 1000 syz-executor.4 [22750] 0 22750 18214 8748 26 4 0 1000 syz-executor.4 [22791] 0 22791 18247 8750 26 4 0 1000 syz-executor.4 [23170] 0 23170 18279 8881 26 4 0 1000 syz-executor.4 [23268] 0 23268 18180 8746 26 4 0 1000 syz-executor.5 [23501] 0 23501 18181 8746 26 4 0 1000 syz-executor.2 [23588] 0 23588 18279 11123 30 4 0 1000 syz-executor.5 [23669] 0 23669 18247 9174 26 4 0 1000 syz-executor.4 [23723] 0 23723 18247 9019 26 4 0 1000 syz-executor.4 [23772] 0 23772 18214 8748 26 4 0 1000 syz-executor.2 [23773] 0 23773 18214 8749 26 4 0 1000 syz-executor.5 [23837] 0 23837 18247 9389 27 4 0 1000 syz-executor.4 [23895] 0 23895 18214 8748 26 4 0 1000 syz-executor.2 [23945] 0 23945 18280 8822 26 4 0 1000 syz-executor.4 [23988] 0 23988 18247 8749 26 4 0 1000 syz-executor.4 [24049] 0 24049 18214 8748 26 4 0 1000 syz-executor.2 [24132] 0 24132 18214 8748 26 4 0 1000 syz-executor.2 [24151] 0 24151 18247 9713 27 4 0 1000 syz-executor.5 [24153] 0 24153 18247 8944 26 4 0 1000 syz-executor.4 [24204] 0 24204 18246 8970 25 3 0 1000 syz-executor.4 [24258] 0 24258 18214 8748 26 4 0 1000 syz-executor.2 [24302] 0 24302 18214 9270 27 4 0 1000 syz-executor.4 [24320] 0 24320 18214 9007 26 4 0 1000 syz-executor.4 [24408] 0 24408 18247 9362 27 4 0 1000 syz-executor.5 [24551] 0 24551 18279 11357 31 4 0 1000 syz-executor.5 [24869] 0 24869 18247 9308 27 4 0 1000 syz-executor.4 [25002] 0 25002 18181 8746 26 4 0 1000 syz-executor.5 [25096] 0 25096 18247 8877 26 4 0 1000 syz-executor.4 [25169] 0 25169 18246 9061 26 4 0 1000 syz-executor.5 [25173] 0 25173 18246 9468 27 4 0 1000 syz-executor.4 [25252] 0 25252 18280 8846 26 4 0 1000 syz-executor.5 [25682] 0 25682 18247 9691 27 4 0 1000 syz-executor.2 [25728] 0 25728 18312 10516 28 3 0 1000 syz-executor.2 [25775] 0 25775 18246 9516 26 3 0 1000 syz-executor.2 [25805] 0 25805 18247 8963 27 4 0 1000 syz-executor.1 [25832] 0 25832 18312 11110 29 3 0 1000 syz-executor.2 [25915] 0 25915 18246 8987 25 3 0 1000 syz-executor.4 [25948] 0 25948 18246 9231 26 3 0 1000 syz-executor.1 [25967] 0 25967 18246 8821 25 3 0 1000 syz-executor.5 [26199] 0 26199 18247 8962 27 4 0 1000 syz-executor.1 [26252] 0 26252 18246 9169 26 4 0 1000 syz-executor.1 [26428] 0 26428 18246 9074 26 4 0 1000 syz-executor.1 [26495] 0 26495 18247 9539 27 4 0 1000 syz-executor.1 [26626] 0 26626 18246 9300 27 4 0 1000 syz-executor.1 [26910] 0 26910 18247 9660 28 4 0 1000 syz-executor.1 [27043] 0 27043 18279 11317 32 4 0 1000 syz-executor.1 [27266] 0 27266 18247 9412 27 4 0 1000 syz-executor.2 [27736] 0 27736 18213 8752 26 4 0 1000 syz-executor.1 [28148] 0 28148 18279 11350 32 4 0 1000 syz-executor.1 [28405] 0 28405 18247 9430 27 4 0 1000 syz-executor.2 [28413] 0 28413 18247 9409 28 4 0 1000 syz-executor.1 [28485] 0 28485 18213 8751 26 4 0 1000 syz-executor.1 [28638] 0 28638 18280 11469 32 4 0 1000 syz-executor.1 [28722] 0 28722 18246 9093 26 4 0 1000 syz-executor.3 [29132] 0 29132 18213 8749 26 4 0 1000 syz-executor.2 [29326] 0 29326 18247 9595 28 4 0 1000 syz-executor.1 [29379] 0 29379 18214 8748 26 4 0 1000 syz-executor.2 [29384] 0 29384 18247 9761 27 4 0 1000 syz-executor.3 [29449] 0 29449 18247 8864 26 4 0 1000 syz-executor.3 [29567] 0 29567 18214 8750 26 4 0 1000 syz-executor.3 [29748] 0 29748 18247 12846 34 4 0 1000 syz-executor.1 [30151] 0 30151 18213 8750 26 4 0 1000 syz-executor.3 [30320] 0 30320 18280 10862 30 4 0 1000 syz-executor.3 [30384] 0 30384 18246 9339 27 4 0 1000 syz-executor.2 [30439] 0 30439 18214 9134 26 4 0 1000 syz-executor.2 [30855] 0 30855 18247 8892 27 4 0 1000 syz-executor.1 [30940] 0 30940 18213 8750 26 4 0 1000 syz-executor.3 [31102] 0 31102 18247 8790 26 4 0 1000 syz-executor.2 [31361] 0 31361 18280 11023 31 4 0 1000 syz-executor.1 [31526] 0 31526 18246 8753 26 4 0 1000 syz-executor.1 [31530] 0 31530 18280 11432 31 4 0 1000 syz-executor.3 [31597] 0 31597 18214 8748 26 4 0 1000 syz-executor.2 [32452] 0 32452 18181 8747 26 4 0 1000 syz-executor.2 [32630] 0 32630 18213 8750 26 4 0 1000 syz-executor.3 [32638] 0 32638 18247 9374 27 4 0 1000 syz-executor.2 [32640] 0 32640 18246 8924 26 4 0 1000 syz-executor.1 [ 473] 0 473 18181 8747 26 4 0 1000 syz-executor.3 [ 483] 0 483 18213 8749 26 4 0 1000 syz-executor.2 [ 498] 0 498 18181 8747 26 4 0 1000 syz-executor.3 [ 511] 0 511 18180 8747 26 4 0 1000 syz-executor.2 [ 543] 0 543 18180 8747 26 4 0 1000 syz-executor.2 [ 547] 0 547 18214 8749 26 4 0 1000 syz-executor.3 [ 627] 0 627 18147 8704 24 3 0 1000 syz-executor.2 [ 665] 0 665 18213 8751 27 4 0 1000 syz-executor.2 [ 695] 0 695 18180 8759 26 4 0 1000 syz-executor.2 [ 704] 0 704 18214 8749 26 4 0 1000 syz-executor.3 [ 722] 0 722 18181 8747 26 4 0 1000 syz-executor.3 [ 741] 0 741 18213 8749 26 4 0 1000 syz-executor.2 [ 765] 0 765 18214 8749 26 4 0 1000 syz-executor.3 [ 785] 0 785 18181 8748 26 4 0 1000 syz-executor.3 [ 799] 0 799 18181 8747 26 4 0 1000 syz-executor.3 [ 823] 0 823 18214 8750 26 4 0 1000 syz-executor.3 [ 827] 0 827 18180 8748 26 4 0 1000 syz-executor.2 [ 876] 0 876 18180 8747 26 4 0 1000 syz-executor.2 [ 889] 0 889 18246 8751 26 4 0 1000 syz-executor.2 [ 895] 0 895 18181 8746 26 4 0 1000 syz-executor.3 [ 928] 0 928 18180 8747 26 4 0 1000 syz-executor.2 [ 965] 0 965 18181 8747 26 4 0 1000 syz-executor.3 [ 978] 0 978 18181 8746 26 4 0 1000 syz-executor.3 [ 997] 0 997 18147 8744 25 4 0 1000 syz-executor.2 [ 1004] 0 1004 18181 8747 26 4 0 1000 syz-executor.3 [ 1032] 0 1032 18181 8745 26 4 0 1000 syz-executor.3 [ 1058] 0 1058 18181 8746 26 4 0 1000 syz-executor.3 [ 1066] 0 1066 18147 8745 26 4 0 1000 syz-executor.2 [ 1083] 0 1083 18279 8753 26 4 0 1000 syz-executor.2 [ 1139] 0 1139 18181 8747 26 4 0 1000 syz-executor.3 [ 1166] 0 1166 18246 8751 26 4 0 1000 syz-executor.2 [ 1170] 0 1170 18246 8751 26 4 0 1000 syz-executor.2 [ 1207] 0 1207 18180 8749 27 4 0 1000 syz-executor.2 [ 1238] 0 1238 18180 8747 26 4 0 1000 syz-executor.2 [ 1330] 0 1330 18181 8747 26 4 0 1000 syz-executor.3 [ 1406] 0 1406 18213 8749 26 4 0 1000 syz-executor.3 [ 1435] 0 1435 18181 8747 26 4 0 1000 syz-executor.3 [ 1455] 0 1455 18213 8749 26 4 0 1000 syz-executor.2 [ 1470] 0 1470 18181 8746 26 4 0 1000 syz-executor.3 [ 1532] 0 1532 18181 8747 26 4 0 1000 syz-executor.3 [ 1549] 0 1549 18246 8751 26 4 0 1000 syz-executor.2 [ 1571] 0 1571 18181 8747 26 4 0 1000 syz-executor.3 [ 1572] 0 1572 18246 8751 26 4 0 1000 syz-executor.2 [ 1599] 0 1599 18181 8746 26 4 0 1000 syz-executor.3 [ 1610] 0 1610 18180 8747 26 4 0 1000 syz-executor.2 [ 1645] 0 1645 18177 8747 26 4 0 1000 syz-executor.2 [ 1673] 0 1673 18213 8749 26 4 0 1000 syz-executor.2 [ 1695] 0 1695 18213 8749 26 4 0 1000 syz-executor.2 [ 1797] 0 1797 18180 8749 27 4 0 1000 syz-executor.3 [ 1827] 0 1827 18181 8746 26 4 0 1000 syz-executor.3 [ 1884] 0 1884 18213 8749 26 4 0 1000 syz-executor.2 [ 1896] 0 1896 18247 9104 26 4 0 1000 syz-executor.1 [ 1900] 0 1900 18147 8744 25 4 0 1000 syz-executor.2 [ 1905] 0 1905 18181 8747 26 4 0 1000 syz-executor.3 [ 1929] 0 1929 18180 8747 26 4 0 1000 syz-executor.2 [ 1938] 0 1938 18180 8747 26 4 0 1000 syz-executor.2 [ 1992] 0 1992 18214 8749 26 4 0 1000 syz-executor.3 [ 1995] 0 1995 18147 8704 24 3 0 1000 syz-executor.2 [ 2014] 0 2014 18147 8744 25 4 0 1000 syz-executor.2 [ 2020] 0 2020 18247 9922 29 4 0 1000 syz-executor.1