INFO: rcu detected stall in sys

Title	Repro	Cause bisect	Fix bisect	Count	Last	Reported
INFO: rcu detected stall in sys_creat exfat				98	1916d	2007d

1916d

2007d

Title	Replies (including bot)	Last reply
INFO: rcu detected stall in sys_mount (2)	1 (2)	2018/12/12 21:01

Title

Replies (including bot)

Last reply

INFO: rcu detected stall in sys_mount (2)

1 (2)

2018/12/12 21:01

Kernel	Title	Repro	Cause bisect	Fix bisect	Count	Last	Reported	Patched	Status
upstream	INFO: rcu detected stall in sys_mount (6) ntfs	C	inconclusive		82	161d	935d	0/26	auto-obsoleted due to no activity on 2024/02/18 04:52
upstream	INFO: rcu detected stall in sys_mount (4) fs				2	1507d	1522d	0/26	auto-closed as invalid on 2020/06/02 15:48
upstream	INFO: rcu detected stall in sys_mount (5) afs	C	done	done	10	1297d	1318d	15/26	fixed on 2020/11/16 12:12
upstream	INFO: rcu detected stall in sys_mount (3) kernel				6	1598d	1599d	0/26	closed as invalid on 2019/12/04 14:04
upstream	INFO: rcu detected stall in sys_mount nfs				1	2004d	2004d	0/26	closed as invalid on 2018/10/29 13:47

audit: type=1800 audit(2000000150.760:153): pid=30410 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed comm="syz-executor1" name="bus" dev="sda1" ino=16548 res=0 ip6_tunnel: ip6tnl1 xmit: Local address not yet configured! ip6_tunnel: 6tnl0 xmit: Local address not yet configured! rcu: INFO: rcu_preempt self-detected stall on CPU rcu: 0-....: (1 GPs behind) idle=512/1/0x4000000000000002 softirq=146256/146258 fqs=5248 rcu: (t=10501 jiffies g=205577 q=1497) NMI backtrace for cpu 0 CPU: 0 PID: 30404 Comm: syz-executor0 Not tainted 4.20.0-rc6+ #150 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: <IRQ> __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x244/0x39d lib/dump_stack.c:113 nmi_cpu_backtrace.cold.2+0x5c/0xa1 lib/nmi_backtrace.c:101 nmi_trigger_cpumask_backtrace+0x1e8/0x22a lib/nmi_backtrace.c:62 arch_trigger_cpumask_backtrace+0x14/0x20 arch/x86/kernel/apic/hw_nmi.c:38 trigger_single_cpu_backtrace include/linux/nmi.h:164 [inline] rcu_dump_cpu_stacks+0x16f/0x1bc kernel/rcu/tree.c:1195 print_cpu_stall.cold.67+0x1f3/0x3c7 kernel/rcu/tree.c:1334 check_cpu_stall kernel/rcu/tree.c:1408 [inline] rcu_pending kernel/rcu/tree.c:2961 [inline] rcu_check_callbacks+0xf3b/0x13f0 kernel/rcu/tree.c:2506 update_process_times+0x2d/0x70 kernel/time/timer.c:1636 tick_sched_handle+0x9f/0x180 kernel/time/tick-sched.c:164 tick_sched_timer+0x45/0x130 kernel/time/tick-sched.c:1274 __run_hrtimer kernel/time/hrtimer.c:1398 [inline] __hrtimer_run_queues+0x41c/0x10d0 kernel/time/hrtimer.c:1460 hrtimer_interrupt+0x313/0x780 kernel/time/hrtimer.c:1518 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1034 [inline] smp_apic_timer_interrupt+0x1a1/0x760 arch/x86/kernel/apic/apic.c:1059 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:807 </IRQ> RIP: 0010:preempt_count arch/x86/include/asm/preempt.h:23 [inline] RIP: 0010:preempt_count_sub+0x49/0x150 kernel/sched/core.c:3217 Code: 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 f9 00 00 00 8b 0d 92 eb b9 09 85 c9 75 18 65 8b 05 77 41 ac 7e <25> ff ff ff 7f 39 c3 7f 1b 81 fb fe 00 00 00 76 6e 65 8b 05 5f 41 RSP: 0018:ffff88817b0b6a58 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 RAX: 0000000080000001 RBX: 0000000000000001 RCX: 0000000000000000 RDX: 0000000000000004 RSI: ffffffff83933488 RDI: ffffffff8b0f97e0 RBP: ffff88817b0b6a60 R08: ffff88817d73e4c0 R09: ffffed103b5c5b5f R10: ffffed103b5c5b5f R11: ffff8881dae2dafb R12: 1ffff1102f616d01 R13: 0000000000000003 R14: ffff88817b0b6ad8 R15: 0000000000000001 rcu_lockdep_current_cpu_online+0x1a4/0x210 kernel/rcu/tree.c:958 rcu_read_lock_held+0x90/0xc0 kernel/rcu/update.c:279 xa_entry include/linux/xarray.h:848 [inline] xas_reload include/linux/xarray.h:1196 [inline] find_get_entry+0xc9d/0x1120 mm/filemap.c:1440 pagecache_get_page+0x12f/0xf00 mm/filemap.c:1518 find_or_create_page include/linux/pagemap.h:322 [inline] grow_dev_page fs/buffer.c:947 [inline] grow_buffers fs/buffer.c:1016 [inline] __getblk_slow fs/buffer.c:1043 [inline] __getblk_gfp+0x3aa/0xd50 fs/buffer.c:1320 __bread_gfp+0x2d/0x310 fs/buffer.c:1354 sb_bread include/linux/buffer_head.h:307 [inline] fat__get_entry+0x5a6/0xa40 fs/fat/dir.c:101 fat_get_entry fs/fat/dir.c:129 [inline] fat_get_short_entry+0x13c/0x2c0 fs/fat/dir.c:878 fat_subdirs+0x142/0x290 fs/fat/dir.c:944 fat_read_root fs/fat/inode.c:1416 [inline] fat_fill_super+0x2a9f/0x4310 fs/fat/inode.c:1851 vfat_fill_super+0x31/0x40 fs/fat/namei_vfat.c:1049 mount_bdev+0x30c/0x3e0 fs/super.c:1158 vfat_mount+0x34/0x40 fs/fat/namei_vfat.c:1056 mount_fs+0xae/0x31d fs/super.c:1261 vfs_kern_mount.part.35+0xdc/0x4f0 fs/namespace.c:961 vfs_kern_mount fs/namespace.c:951 [inline] do_new_mount fs/namespace.c:2469 [inline] do_mount+0x581/0x31f0 fs/namespace.c:2801 ksys_mount+0x12d/0x140 fs/namespace.c:3017 __do_sys_mount fs/namespace.c:3031 [inline] __se_sys_mount fs/namespace.c:3028 [inline] __x64_sys_mount+0xbe/0x150 fs/namespace.c:3028 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x45a0ea Code: b8 a6 00 00 00 0f 05 48 3d 01 f0 ff ff 0f 83 7d 89 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 0f 83 5a 89 fb ff c3 66 0f 1f 84 00 00 00 00 00 RSP: 002b:00007f9204806a88 EFLAGS: 00000206 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007f9204806b30 RCX: 000000000045a0ea RDX: 00007f9204806ad0 RSI: 00000000200004c0 RDI: 00007f9204806af0 RBP: 00000000200004c0 R08: 00007f9204806b30 R09: 00007f9204806ad0 R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000007 R13: 0000000000000000 R14: 00000000004d9c28 R15: 00000000ffffffff