INFO: rcu detected stall in ext4_filemap

Kernel	Title	Repro	Count	Last	Reported	Patched	Status
linux-4.19	INFO: rcu detected stall in ext4_filemap_fault (3)		2	708d	738d	0/1	auto-obsoleted due to no activity on 2022/09/09 17:56
linux-4.19	INFO: rcu detected stall in ext4_filemap_fault (2)		1	1363d	1363d	0/1	auto-closed as invalid on 2020/11/23 02:32
android-49	INFO: rcu detected stall in ext4_filemap_fault	C	1	1682d	1682d	0/3	public: reported C repro on 2019/09/11 03:52
upstream	INFO: rcu detected stall in ext4_filemap_fault mm		109	1873d	2044d	0/26	closed as dup on 2019/01/02 16:36
linux-4.19	INFO: rcu detected stall in ext4_filemap_fault		4	1552d	1702d	0/1	auto-closed as invalid on 2020/05/18 19:50
linux-4.14	INFO: rcu detected stall in ext4_filemap_fault		1	1606d	1606d	0/1	auto-closed as invalid on 2020/03/25 22:24
upstream	INFO: rcu detected stall in ext4_filemap_fault (2) cgroups		1	1648d	1648d	0/26	auto-closed as invalid on 2020/01/13 18:23
android-414	INFO: rcu detected stall in ext4_filemap_fault (2)		2	1601d	1646d	0/1	auto-closed as invalid on 2020/03/30 02:23

[30611] 0 30611 17634 12692 31 3 0 1000 syz-executor5 [30616] 0 30616 17667 8219 25 4 0 0 syz-executor4 [30638] 0 30638 17667 8219 25 4 0 0 syz-executor4 [30696] 0 30696 17634 12692 31 3 0 1000 syz-executor5 [30723] 0 30723 17634 12692 31 3 0 1000 syz-executor5 INFO: rcu_preempt detected stalls on CPUs/tasks: Tasks blocked on level-0 rcu_node (CPUs 0-1): P1771 (detected by 0, t=10502 jiffies, g=53027, c=53026, q=32) syz-fuzzer R running task 23984 1771 1769 0x10000000 Call Trace: <IRQ> sched_show_task.cold.31+0x342/0x3c0 kernel/sched/core.c:5230 rcu_print_detail_task_stall_rnp+0xbf/0xf8 kernel/rcu/tree_plugin.h:568 rcu_print_detail_task_stall kernel/rcu/tree_plugin.h:581 [inline] print_other_cpu_stall kernel/rcu/tree.c:1488 [inline] check_cpu_stall kernel/rcu/tree.c:1616 [inline] __rcu_pending kernel/rcu/tree.c:3382 [inline] rcu_pending kernel/rcu/tree.c:3444 [inline] rcu_check_callbacks.cold.56+0x7ad/0xd99 kernel/rcu/tree.c:2784 update_process_times+0x24/0x60 kernel/time/timer.c:1588 tick_sched_handle.isra.8+0x73/0x150 kernel/time/tick-sched.c:161 tick_sched_timer+0x7e/0x160 kernel/time/tick-sched.c:1321 __run_hrtimer kernel/time/hrtimer.c:1259 [inline] __hrtimer_run_queues+0x2d0/0xc10 kernel/time/hrtimer.c:1323 hrtimer_interrupt+0x19a/0x440 kernel/time/hrtimer.c:1357 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1037 [inline] smp_apic_timer_interrupt+0x13a/0x600 arch/x86/kernel/apic/apic.c:1062 apic_timer_interrupt+0x84/0x90 arch/x86/entry/entry_64.S:787 </IRQ> RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:778 [inline] RIP: 0010:console_unlock+0x753/0xc80 kernel/printk/printk.c:2399 RSP: 0018:ffff8881d0b1f640 EFLAGS: 00000297 ORIG_RAX: ffffffffffffff10 RAX: 0000000000000007 RBX: 0000000000000200 RCX: 1ffff1103a2ad413 RDX: 0000000000000000 RSI: ffff8881d156a078 RDI: 0000000000000297 RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: ffffffffb83647f0 R13: ffffffffbafb7fa0 R14: dffffc0000000000 R15: 000000000000006a vprintk_emit+0x125/0x320 kernel/printk/printk.c:1917 vprintk_func+0x58/0x159 kernel/printk/printk_safe.c:401 printk+0xa7/0xcf kernel/printk/printk.c:1990 dump_tasks mm/oom_kill.c:396 [inline] dump_header+0x70b/0x7a8 mm/oom_kill.c:428 oom_kill_process.cold.8+0x10/0xc88 mm/oom_kill.c:861 out_of_memory+0x669/0xa60 mm/oom_kill.c:1075 __alloc_pages_may_oom mm/page_alloc.c:3356 [inline] __alloc_pages_slowpath mm/page_alloc.c:4045 [inline] __alloc_pages_nodemask+0x182f/0x2180 mm/page_alloc.c:4210 __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] page_cache_read mm/filemap.c:2286 [inline] filemap_fault+0xcdd/0x14a0 mm/filemap.c:2470 ext4_filemap_fault+0x7d/0xb0 fs/ext4/inode.c:6179 __do_fault+0x80/0x210 mm/memory.c:3194 do_read_fault mm/memory.c:3604 [inline] do_fault mm/memory.c:3730 [inline] handle_pte_fault mm/memory.c:3960 [inline] __handle_mm_fault+0x991/0x25f0 mm/memory.c:4084 handle_mm_fault+0x2f2/0x6eb mm/memory.c:4121 __do_page_fault+0x45d/0xb60 arch/x86/mm/fault.c:1425 page_fault+0x42/0x50 arch/x86/entry/entry_64.S:1104 RIP: 0020:0x13 RSP: 355bfa70:00007ffead068888 EFLAGS: 00000000 syz-fuzzer R running task 23984 1771 1769 0x10000000 Call Trace: <IRQ> sched_show_task.cold.31+0x342/0x3c0 kernel/sched/core.c:5230 rcu_print_detail_task_stall_rnp+0xbf/0xf8 kernel/rcu/tree_plugin.h:568 rcu_print_detail_task_stall kernel/rcu/tree_plugin.h:583 [inline] print_other_cpu_stall kernel/rcu/tree.c:1488 [inline] check_cpu_stall kernel/rcu/tree.c:1616 [inline] __rcu_pending kernel/rcu/tree.c:3382 [inline] rcu_pending kernel/rcu/tree.c:3444 [inline] rcu_check_callbacks.cold.56+0x805/0xd99 kernel/rcu/tree.c:2784 update_process_times+0x24/0x60 kernel/time/timer.c:1588 tick_sched_handle.isra.8+0x73/0x150 kernel/time/tick-sched.c:161 tick_sched_timer+0x7e/0x160 kernel/time/tick-sched.c:1321 __run_hrtimer kernel/time/hrtimer.c:1259 [inline] __hrtimer_run_queues+0x2d0/0xc10 kernel/time/hrtimer.c:1323 hrtimer_interrupt+0x19a/0x440 kernel/time/hrtimer.c:1357 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1037 [inline] smp_apic_timer_interrupt+0x13a/0x600 arch/x86/kernel/apic/apic.c:1062 apic_timer_interrupt+0x84/0x90 arch/x86/entry/entry_64.S:787 </IRQ> RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:778 [inline] RIP: 0010:console_unlock+0x753/0xc80 kernel/printk/printk.c:2399 RSP: 0018:ffff8881d0b1f640 EFLAGS: 00000297 ORIG_RAX: ffffffffffffff10 RAX: 0000000000000007 RBX: 0000000000000200 RCX: 1ffff1103a2ad413 RDX: 0000000000000000 RSI: ffff8881d156a078 RDI: 0000000000000297 RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: ffffffffb83647f0 R13: ffffffffbafb7fa0 R14: dffffc0000000000 R15: 000000000000006a vprintk_emit+0x125/0x320 kernel/printk/printk.c:1917 vprintk_func+0x58/0x159 kernel/printk/printk_safe.c:401 printk+0xa7/0xcf kernel/printk/printk.c:1990 dump_tasks mm/oom_kill.c:396 [inline] dump_header+0x70b/0x7a8 mm/oom_kill.c:428 oom_kill_process.cold.8+0x10/0xc88 mm/oom_kill.c:861 out_of_memory+0x669/0xa60 mm/oom_kill.c:1075 __alloc_pages_may_oom mm/page_alloc.c:3356 [inline] __alloc_pages_slowpath mm/page_alloc.c:4045 [inline] __alloc_pages_nodemask+0x182f/0x2180 mm/page_alloc.c:4210 __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] page_cache_read mm/filemap.c:2286 [inline] filemap_fault+0xcdd/0x14a0 mm/filemap.c:2470 ext4_filemap_fault+0x7d/0xb0 fs/ext4/inode.c:6179 __do_fault+0x80/0x210 mm/memory.c:3194 do_read_fault mm/memory.c:3604 [inline] do_fault mm/memory.c:3730 [inline] handle_pte_fault mm/memory.c:3960 [inline] __handle_mm_fault+0x991/0x25f0 mm/memory.c:4084 handle_mm_fault+0x2f2/0x6eb mm/memory.c:4121 __do_page_fault+0x45d/0xb60 arch/x86/mm/fault.c:1425 page_fault+0x42/0x50 arch/x86/entry/entry_64.S:1104 RIP: 0020:0x13 RSP: 355bfa70:00007ffead068888 EFLAGS: 00000000 [30800] 0 30800 17634 12692 31 3 0 1000 syz-executor5 [30883] 0 30883 17634 12692 31 3 0 1000 syz-executor5 [30981] 0 30981 17634 12692 31 3 0 1000 syz-executor5 [30985] 0 30985 17634 8235 26 4 0 0 syz-executor4 [31015] 0 31015 17601 8233 26 4 0 0 syz-executor4 [31043] 0 31043 17634 12692 31 3 0 1000 syz-executor5 [31086] 0 31086 17634 12692 31 3 0 1000 syz-executor5 [31162] 0 31162 17634 12692 31 3 0 1000 syz-executor5 [31198] 0 31198 17601 8231 25 4 0 0 syz-executor4 [31216] 0 31216 17601 8199 24 3 0 0 syz-executor4 [31223] 0 31223 17667 8203 24 3 0 0 syz-executor4 [31230] 0 31230 17601 8230 24 4 0 0 syz-executor4 [31234] 0 31234 17634 12692 31 3 0 1000 syz-executor5 [31260] 0 31260 17667 8234 25 4 0 1000 syz-executor1 [31288] 0 31288 17634 12692 31 3 0 1000 syz-executor5 [31363] 0 31363 17634 12692 31 3 0 1000 syz-executor5 [31422] 0 31422 17634 12692 31 3 0 1000 syz-executor5 [31490] 0 31490 17667 8234 24 4 0 1000 syz-executor0 [31492] 0 31492 17634 12692 31 3 0 1000 syz-executor5 [31493] 0 31493 17667 8234 24 4 0 1000 syz-executor0 [31552] 0 31552 17634 12692 31 3 0 1000 syz-executor5 [31579] 0 31579 17634 12692 31 3 0 1000 syz-executor5 [31585] 0 31585 17601 8199 24 3 0 1000 syz-executor2 [31586] 0 31586 17601 8231 25 4 0 1000 syz-executor2 [31615] 0 31615 17667 8238 28 4 0 1000 syz-executor1 [31700] 0 31700 17634 12692 31 3 0 1000 syz-executor5 [31826] 0 31826 17634 12692 31 3 0 1000 syz-executor5 [31885] 0 31885 17700 8237 25 4 0 1000 syz-executor0 [31898] 0 31898 17634 12692 31 3 0 1000 syz-executor5 [31904] 0 31904 17601 8198 23 3 0 1000 syz-executor0 [31909] 0 31909 17601 8198 23 3 0 1000 syz-executor0 [31970] 0 31970 17634 12692 31 3 0 1000 syz-executor5 [32051] 0 32051 17634 12692 31 3 0 1000 syz-executor5 [32133] 0 32133 17634 12692 31 3 0 1000 syz-executor5 [32227] 0 32227 17634 12692 31 3 0 1000 syz-executor5 [32278] 0 32278 17634 12692 31 3 0 1000 syz-executor5 [32286] 0 32286 17700 8237 25 4 0 0 syz-executor4 [32332] 0 32332 17634 12692 31 3 0 1000 syz-executor5 [32381] 0 32381 17634 12693 31 3 0 1000 syz-executor5 [32416] 0 32416 17601 8230 24 4 0 1000 syz-executor0 [32421] 0 32421 17601 8198 23 3 0 1000 syz-executor1 [32436] 0 32436 17634 12692 31 3 0 1000 syz-executor5 [32442] 0 32442 17601 8201 24 3 0 1000 syz-executor1 [32472] 0 32472 17601 8198 23 3 0 1000 syz-executor1 [32517] 0 32517 17634 12692 31 3 0 1000 syz-executor5 [32559] 0 32559 17700 8238 30 4 0 0 syz-executor0 [32595] 0 32595 17634 12692 31 3 0 1000 syz-executor5 [32664] 0 32664 17667 8237 25 4 0 1000 syz-executor1 [32667] 0 32667 17634 12692 31 3 0 1000 syz-executor5 [32671] 0 32671 17667 8237 25 4 0 1000 syz-executor1 [32675] 0 32675 17634 8233 25 4 0 1000 syz-executor2 [32753] 0 32753 17634 12692 31 3 0 1000 syz-executor5 [ 335] 0 335 17634 12692 31 3 0 1000 syz-executor5 [ 444] 0 444 17634 12692 31 3 0 1000 syz-executor5 [ 516] 0 516 17634 12692 31 3 0 1000 syz-executor5 [ 581] 0 581 17634 12692 31 3 0 1000 syz-executor5 [ 605] 0 605 17601 8200 25 3 0 0 syz-executor0 [ 612] 0 612 17634 12692 31 3 0 1000 syz-executor5 [ 626] 0 626 17634 8233 25 4 0 0 syz-executor4 [ 632] 0 632 17601 8231 25 4 0 0 syz-executor4 [ 699] 0 699 17634 12692 31 3 0 1000 syz-executor5 [ 817] 0 817 17634 12692 31 3 0 1000 syz-executor5 [ 851] 0 851 17634 12692 31 3 0 1000 syz-executor5 [ 936] 0 936 17634 12692 31 3 0 1000 syz-executor5 [ 992] 0 992 17634 12692 31 3 0 1000 syz-executor5 [ 1021] 0 1021 17601 8230 24 4 0 0 syz-executor0 [ 1038] 0 1038 17634 12692 31 3 0 1000 syz-executor5 [ 1113] 0 1113 17634 12692 31 3 0 1000 syz-executor5 [ 1164] 0 1164 17634 12692 31 3 0 1000 syz-executor5 [ 1191] 0 1191 17601 8230 24 4 0 0 syz-executor4 [ 1215] 0 1215 17634 12692 31 3 0 1000 syz-executor5 [ 1263] 0 1263 17634 12692 31 3 0 1000 syz-executor5 [ 1345] 0 1345 17634 12692 31 3 0 1000 syz-executor5 [ 1366] 0 1366 17634 8218 25 4 0 0 syz-executor4 [ 1376] 0 1376 17634 8218 25 4 0 0 syz-executor4 [ 1403] 0 1403 17634 12692 31 3 0 1000 syz-executor5 [ 1407] 0 1407 17700 10494 29 4 0 0 syz-executor4 [ 1429] 0 1429 17700 8224 26 4 0 1000 syz-executor2 [ 1465] 0 1465 17634 12692 31 3 0 1000 syz-executor5 [ 1521] 0 1521 17634 12692 31 3 0 1000 syz-executor5 [ 1569] 0 1569 17634 12693 31 3 0 1000 syz-executor5 [ 1638] 0 1638 17601 8230 24 4 0 0 syz-executor0 [ 1650] 0 1650 17667 8234 24 4 0 0 syz-executor0 [ 1661] 0 1661 17634 12692 31 3 0 1000 syz-executor5 [ 1749] 0 1749 17634 12692 31 3 0 1000 syz-executor5 [ 1813] 0 1813 17634 12692 31 3 0 1000 syz-executor5 [ 1882] 0 1882 17634 12692 31 3 0 1000 syz-executor5