INFO: rcu detected stall in sys

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[syzbot] [mm?] INFO: rcu detected stall in sys_setsockopt (4)	0 (1)	2024/11/25 08:53

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[syzbot] [mm?] INFO: rcu detected stall in sys_setsockopt (4)

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2024/11/25 08:53

Kernel	Title	Count	Last	Reported	Patched	Status
upstream	INFO: rcu detected stall in sys_setsockopt (2) kvm	2	1217d	1258d	0/28	auto-closed as invalid on 2021/10/27 00:02
upstream	INFO: rcu detected stall in sys_setsockopt kvm	1	1379d	1379d	0/28	auto-closed as invalid on 2021/05/17 17:51
upstream	INFO: rcu detected stall in sys_setsockopt (3) net	4	1089d	1116d	0/28	closed as invalid on 2022/02/08 10:00
linux-4.19	BUG: soft lockup in sys_setsockopt	3	1311d	1339d	0/1	auto-closed as invalid on 2021/08/23 07:10

rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P6057/1:b..l rcu: (detected by 1, t=10503 jiffies, g=12753, q=1720979 ncpus=2) task:syz-executor state:R running task stack:20544 pid:6057 tgid:6057 ppid:1 flags:0x00000006 Call Trace: <TASK> context_switch kernel/sched/core.c:5369 [inline] __schedule+0x1850/0x4c30 kernel/sched/core.c:6756 preempt_schedule_irq+0xfb/0x1c0 kernel/sched/core.c:7078 irqentry_exit+0x5e/0x90 kernel/entry/common.c:354 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 RIP: 0010:lock_acquire+0x264/0x550 kernel/locking/lockdep.c:5853 Code: 2b 00 74 08 4c 89 f7 e8 ba be 8f 00 f6 44 24 61 02 0f 85 85 01 00 00 41 f7 c7 00 02 00 00 74 01 fb 48 c7 44 24 40 0e 36 e0 45 <4b> c7 44 25 00 00 00 00 00 43 c7 44 25 09 00 00 00 00 43 c7 44 25 RSP: 0018:ffffc9000322f2a0 EFLAGS: 00000206 RAX: 0000000000000001 RBX: 1ffff92000645e60 RCX: ffff88802d22c6d8 RDX: dffffc0000000000 RSI: ffffffff8c0aa840 RDI: ffffffff8c5e88a0 RBP: ffffc9000322f3f8 R08: ffffffff9428a887 R09: 1ffffffff2851510 R10: dffffc0000000000 R11: fffffbfff2851511 R12: 1ffff92000645e5c R13: dffffc0000000000 R14: ffffc9000322f300 R15: 0000000000000246 rcu_lock_acquire include/linux/rcupdate.h:337 [inline] rcu_read_lock include/linux/rcupdate.h:849 [inline] page_ext_get+0x3d/0x2a0 mm/page_ext.c:525 __page_table_check_zero+0xb1/0x350 mm/page_table_check.c:148 page_table_check_free include/linux/page_table_check.h:41 [inline] free_pages_prepare mm/page_alloc.c:1128 [inline] free_unref_page+0xe0e/0x1140 mm/page_alloc.c:2693 discard_slab mm/slub.c:2673 [inline] __put_partials+0xeb/0x130 mm/slub.c:3142 put_cpu_partial+0x17c/0x250 mm/slub.c:3217 __slab_free+0x2ea/0x3d0 mm/slub.c:4468 qlink_free mm/kasan/quarantine.c:163 [inline] qlist_free_all+0x9a/0x140 mm/kasan/quarantine.c:179 kasan_quarantine_reduce+0x14f/0x170 mm/kasan/quarantine.c:286 __kasan_kmalloc+0x23/0xb0 mm/kasan/common.c:385 kasan_kmalloc include/linux/kasan.h:260 [inline] __kmalloc_cache_node_noprof+0x25d/0x3a0 mm/slub.c:4326 kmalloc_node_noprof include/linux/slab.h:924 [inline] __get_vm_area_node+0x132/0x2d0 mm/vmalloc.c:3127 __vmalloc_node_range_noprof+0x344/0x1380 mm/vmalloc.c:3804 __vmalloc_node_noprof mm/vmalloc.c:3909 [inline] vzalloc_noprof+0x79/0x90 mm/vmalloc.c:3982 __do_replace+0xc8/0xa40 net/ipv4/netfilter/ip_tables.c:1046 do_replace net/ipv4/netfilter/ip_tables.c:1141 [inline] do_ipt_set_ctl+0xf02/0x1250 net/ipv4/netfilter/ip_tables.c:1635 nf_setsockopt+0x295/0x2c0 net/netfilter/nf_sockopt.c:101 do_sock_setsockopt+0x3af/0x720 net/socket.c:2313 __sys_setsockopt net/socket.c:2338 [inline] __do_sys_setsockopt net/socket.c:2344 [inline] __se_sys_setsockopt net/socket.c:2341 [inline] __x64_sys_setsockopt+0x1ee/0x280 net/socket.c:2341 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f1f1638070a RSP: 002b:00007ffec3066f38 EFLAGS: 00000202 ORIG_RAX: 0000000000000036 RAX: ffffffffffffffda RBX: 00007ffec3066fc0 RCX: 00007f1f1638070a RDX: 0000000000000040 RSI: 0000000000000000 RDI: 0000000000000003 RBP: 0000000000000003 R08: 00000000000002d8 R09: 00007ffec3067377 R10: 00007f1f16509ea0 R11: 0000000000000202 R12: 00007f1f16509e40 R13: 00007ffec3066f5c R14: 0000000000000000 R15: 00007f1f1650c000 </TASK> rcu: rcu_preempt kthread starved for 9031 jiffies! g12753 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0 rcu: Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior. rcu: RCU grace-period kthread stack dump: task:rcu_preempt state:R running task stack:25720 pid:17 tgid:17 ppid:2 flags:0x00004000 Call Trace: <TASK> context_switch kernel/sched/core.c:5369 [inline] __schedule+0x1850/0x4c30 kernel/sched/core.c:6756 __schedule_loop kernel/sched/core.c:6833 [inline] schedule+0x14b/0x320 kernel/sched/core.c:6848 schedule_timeout+0x15a/0x290 kernel/time/sleep_timeout.c:99 rcu_gp_fqs_loop+0x2df/0x1330 kernel/rcu/tree.c:2045 rcu_gp_kthread+0xa7/0x3b0 kernel/rcu/tree.c:2247 kthread+0x2f0/0x390 kernel/kthread.c:389 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 </TASK> rcu: Stack dump where RCU GP kthread last ran: Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 UID: 0 PID: 8 Comm: kworker/0:0 Not tainted 6.12.0-next-20241122-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/30/2024 Workqueue: wg-crypt-wg2 wg_packet_tx_worker RIP: 0010:__trace_hardirqs_on_caller kernel/locking/lockdep.c:4346 [inline] RIP: 0010:lockdep_hardirqs_on_prepare+0x317/0x780 kernel/locking/lockdep.c:4406 Code: 00 00 fc ff df eb ac 48 c7 c7 20 48 80 8e 4c 89 ee e8 fd 56 80 03 48 ba 00 00 00 00 00 fc ff df e9 3d ff ff ff 48 8b 44 24 10 <48> 8d 98 c0 0a 00 00 48 89 d8 48 c1 e8 03 0f b6 04 10 84 c0 0f 85 RSP: 0018:ffffc90000007a00 EFLAGS: 00000046 RAX: ffff88801d2bda00 RBX: ffff88801d2be530 RCX: ffffffff817b230a RDX: dffffc0000000000 RSI: 0000000000000008 RDI: ffffffff9428a988 RBP: ffffc90000007ab8 R08: ffffffff9428a98f R09: 1ffffffff2851531 R10: dffffc0000000000 R11: fffffbfff2851532 R12: ffff88801d2be550 R13: 0000000000000002 R14: ffff88801d2be4d8 R15: 1ffff11003a57c9b FS: 0000000000000000(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055b1b8f2b008 CR3: 000000000e736000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: <NMI> </NMI> <IRQ> trace_hardirqs_on+0x28/0x40 kernel/trace/trace_preemptirq.c:47 __raw_spin_unlock_irq include/linux/spinlock_api_smp.h:159 [inline] _raw_spin_unlock_irq+0x23/0x50 kernel/locking/spinlock.c:202 spin_unlock_irq include/linux/spinlock.h:401 [inline] backlog_unlock_irq_enable net/core/dev.c:258 [inline] process_backlog+0x101e/0x15b0 net/core/dev.c:6146 __napi_poll+0xcb/0x490 net/core/dev.c:6877 napi_poll net/core/dev.c:6946 [inline] net_rx_action+0x89b/0x1240 net/core/dev.c:7068 handle_softirqs+0x2c5/0x980 kernel/softirq.c:554 do_softirq+0x11b/0x1e0 kernel/softirq.c:455 </IRQ> <TASK> __local_bh_enable_ip+0x1bb/0x200 kernel/softirq.c:382 wg_packet_create_data_done drivers/net/wireguard/send.c:247 [inline] wg_packet_tx_worker+0x160/0x810 drivers/net/wireguard/send.c:276 process_one_work kernel/workqueue.c:3229 [inline] process_scheduled_works+0xa63/0x1850 kernel/workqueue.c:3310 worker_thread+0x870/0xd30 kernel/workqueue.c:3391 kthread+0x2f0/0x390 kernel/kthread.c:389 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 </TASK>

Crashes (2):
Time	Kernel	Commit	Syzkaller	Config	Log	Report	Syz repro	C repro	VM info	Assets (help?)	Manager	Title
2024/11/23 01:22	linux-next	cfba9f07a1d6	68da6d95	.config	console log	report	syz / log			[disk image] [vmlinux] [kernel image]	ci-upstream-linux-next-kasan-gce-root	INFO: rcu detected stall in sys_setsockopt
2024/11/23 00:07	net-next	fcc79e1714e8	68da6d95	.config	console log	report			info	[disk image] [vmlinux] [kernel image]	ci-upstream-net-kasan-gce	INFO: rcu detected stall in sys_setsockopt

Crashes (2):

Assets (help?)