INFO: rcu detected stall in tipc

Kernel	Title	Rank 🛈	Repro	Cause bisect	Fix bisect	Count	Last	Reported	Patched	Status
upstream	INFO: rcu detected stall in tipc_recvstream (2) kvm	1				3	304d	317d	0/29	auto-obsoleted due to no activity on 2025/01/12 16:43

rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: rcu: 1-...!: (1 GPs behind) idle=d03c/1/0x4000000000000000 softirq=74474/74475 fqs=14 rcu: (detected by 0, t=10506 jiffies, g=95537, q=491 ncpus=2) Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 22478 Comm: syz-executor.3 Not tainted 6.5.0-rc3-syzkaller-00044-g0a8db05b571a #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2023 RIP: 0010:__lock_acquire+0x9b6/0x5de0 kernel/locking/lockdep.c:5114 Code: ff df 48 c1 ea 03 0f b6 14 02 48 c7 c0 c0 95 13 92 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 ec 52 00 00 44 8b 35 0a 75 ac 10 <45> 85 f6 0f 84 73 05 00 00 48 8b 04 24 48 05 b8 0a 00 00 48 89 c2 RSP: 0018:ffffc900001e0bd0 EFLAGS: 00000097 RAX: 0000000000000003 RBX: 0000000000000067 RCX: 1ffffffff230a0d6 RDX: 0000000000000004 RSI: 0000000000000008 RDI: ffffffff918506b0 RBP: 0000000000000040 R08: 0000000000000000 R09: fffffbfff23095d1 R10: ffffffff9184ae8f R11: ffffc900001e0ff8 R12: ffff888048bd46e2 R13: ffff888048bd46c0 R14: 0000000000000000 R15: 0000000000000002 FS: 00007fc5be7d26c0(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020812000 CR3: 0000000072f4b000 CR4: 0000000000350ee0 Call Trace: <NMI> </NMI> <IRQ> lock_acquire kernel/locking/lockdep.c:5761 [inline] lock_acquire+0x1ae/0x510 kernel/locking/lockdep.c:5726 __raw_spin_lock_irq include/linux/spinlock_api_smp.h:119 [inline] _raw_spin_lock_irq+0x36/0x50 kernel/locking/spinlock.c:170 __run_hrtimer kernel/time/hrtimer.c:1692 [inline] __hrtimer_run_queues+0x2bd/0xc10 kernel/time/hrtimer.c:1752 hrtimer_interrupt+0x31b/0x800 kernel/time/hrtimer.c:1814 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1098 [inline] __sysvec_apic_timer_interrupt+0x14a/0x430 arch/x86/kernel/apic/apic.c:1115 sysvec_apic_timer_interrupt+0x8e/0xc0 arch/x86/kernel/apic/apic.c:1109 </IRQ> <TASK> asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:645 RIP: 0010:local_clock+0xb/0x20 kernel/sched/clock.c:315 Code: bf 08 00 00 00 e9 75 a1 f0 ff 48 c7 c7 58 80 ab 8e e8 79 fc 75 00 eb da 0f 1f 80 00 00 00 00 f3 0f 1e fa 65 ff 05 5d 57 9f 7e <e8> 30 9a cd 08 65 ff 0d 51 57 9f 7e 74 01 c3 e8 e1 1f 9c ff c3 66 RSP: 0018:ffffc900032def88 EFLAGS: 00000282 RAX: 0000000000040000 RBX: 0000000000000000 RCX: ffffc9000c956000 RDX: 0000000000040000 RSI: ffffffff81e34eb6 RDI: ffff88801493a3e8 RBP: 0000000000000000 R08: 0000000000000007 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000072357 R12: ffff88801493a3e8 R13: 0000000005a10154 R14: 0000000000000000 R15: 0000000000000000 __set_page_owner_handle+0x2b/0x3b0 mm/page_owner.c:166 __set_page_owner+0x48/0x60 mm/page_owner.c:197 set_page_owner include/linux/page_owner.h:31 [inline] post_alloc_hook+0x2d2/0x350 mm/page_alloc.c:1570 prep_new_page mm/page_alloc.c:1577 [inline] get_page_from_freelist+0x10a9/0x31e0 mm/page_alloc.c:3221 __alloc_pages+0x1d0/0x4a0 mm/page_alloc.c:4477 __folio_alloc+0x16/0x40 mm/page_alloc.c:4509 vma_alloc_folio+0x156/0x890 mm/mempolicy.c:2240 wp_page_copy mm/memory.c:3081 [inline] do_wp_page+0x1499/0x35f0 mm/memory.c:3446 handle_pte_fault mm/memory.c:4955 [inline] __handle_mm_fault+0x1af7/0x3b80 mm/memory.c:5079 handle_mm_fault+0x2ab/0x9d0 mm/memory.c:5233 do_user_addr_fault+0x446/0xfc0 arch/x86/mm/fault.c:1392 handle_page_fault arch/x86/mm/fault.c:1486 [inline] exc_page_fault+0x5c/0xd0 arch/x86/mm/fault.c:1542 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:570 RIP: 0010:rep_movs_alternative+0x5f/0xb0 arch/x86/lib/copy_user_64.S:82 Code: 07 48 83 c6 08 48 83 c7 08 83 e9 08 74 df 83 f9 08 73 e8 eb c9 eb 04 c3 0f 1f 00 4c 8b 06 4c 8b 4e 08 4c 8b 56 10 4c 8b 5e 18 <4c> 89 07 4c 89 4f 08 4c 89 57 10 4c 89 5f 18 4c 8b 46 20 4c 8b 4e RSP: 0018:ffffc900032df7b0 EFLAGS: 00050206 RAX: 0000000000000001 RBX: 00000000000101d0 RCX: 000000000000cdd0 RDX: ffffed1006c3a057 RSI: ffff8880361c34e8 RDI: 0000000020812000 RBP: 000000002080ec00 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: ffff8880361c00e8 R13: 000000002081edd0 R14: 0000000000000000 R15: ffff88802f251440 copy_user_generic arch/x86/include/asm/uaccess_64.h:112 [inline] raw_copy_to_user arch/x86/include/asm/uaccess_64.h:133 [inline] copyout.part.0+0x68/0x80 lib/iov_iter.c:168 copyout lib/iov_iter.c:316 [inline] _copy_to_iter+0x2fd/0x1190 lib/iov_iter.c:316 copy_to_iter include/linux/uio.h:194 [inline] simple_copy_to_iter+0x4f/0x80 net/core/datagram.c:513 __skb_datagram_iter+0x10f/0x7a0 net/core/datagram.c:419 skb_copy_datagram_iter+0xa1/0x200 net/core/datagram.c:527 skb_copy_datagram_msg include/linux/skbuff.h:3942 [inline] tipc_recvstream+0x3f9/0x960 net/tipc/socket.c:2072 sock_recvmsg_nosec net/socket.c:1020 [inline] sock_recvmsg+0xe2/0x170 net/socket.c:1041 ____sys_recvmsg+0x21f/0x5c0 net/socket.c:2713 ___sys_recvmsg+0x115/0x1a0 net/socket.c:2755 __sys_recvmsg+0x114/0x1e0 net/socket.c:2785 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x38/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7fc5bda7cb29 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fc5be7d20c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002f RAX: ffffffffffffffda RBX: 00007fc5bdb9bf80 RCX: 00007fc5bda7cb29 RDX: 0000000000001f00 RSI: 0000000020000500 RDI: 0000000000000003 RBP: 00007fc5bdac847a R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000000b R14: 00007fc5bdb9bf80 R15: 00007ffd218ed7b8 </TASK> rcu: rcu_preempt kthread starved for 10435 jiffies! g95537 f0x0 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:27560 pid:16 ppid:2 flags:0x00004000 Call Trace: <TASK> context_switch kernel/sched/core.c:5381 [inline] __schedule+0xee1/0x59f0 kernel/sched/core.c:6710 schedule+0xe7/0x1b0 kernel/sched/core.c:6786 schedule_timeout+0x157/0x2c0 kernel/time/timer.c:2167 rcu_gp_fqs_loop+0x1ec/0xa50 kernel/rcu/tree.c:1609 rcu_gp_kthread+0x249/0x380 kernel/rcu/tree.c:1808 kthread+0x33a/0x430 kernel/kthread.c:389 ret_from_fork+0x2c/0x70 arch/x86/kernel/process.c:145 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:296 RIP: 0000:0x0 Code: Unable to access opcode bytes at 0xffffffffffffffd6. RSP: 0000:0000000000000000 EFLAGS: 00000000 ORIG_RAX: 0000000000000000 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 </TASK> rcu: Stack dump where RCU GP kthread last ran: CPU: 0 PID: 6178 Comm: kworker/0:22 Not tainted 6.5.0-rc3-syzkaller-00044-g0a8db05b571a #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2023 Workqueue: events fqdir_free_fn RIP: 0010:csd_lock_wait kernel/smp.c:296 [inline] RIP: 0010:smp_call_function_single+0x1f7/0x650 kernel/smp.c:630 Code: d0 89 84 24 8c 00 00 00 e8 a6 fa ff ff 41 89 c5 0f 1f 44 00 00 e8 19 42 0b 00 eb 07 e8 12 42 0b 00 f3 90 8b 9c 24 88 00 00 00 <31> ff 83 e3 01 89 de e8 6d 3d 0b 00 85 db 75 e2 e8 f4 41 0b 00 e8 RSP: 0018:ffffc9001602fb20 EFLAGS: 00000293 RAX: 0000000000000000 RBX: 0000000000000011 RCX: 0000000000000000 RDX: ffff888028428000 RSI: ffffffff817b2f3e RDI: 0000000000000005 RBP: ffffc9001602fc30 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000000000001 R11: ffff8880b993d2e0 R12: 1ffff92002c05f68 R13: 0000000000000000 R14: 0000000000000001 R15: ffff8880b993d2c0 FS: 0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffffffffffffd6 CR3: 000000004bdf3000 CR4: 0000000000350ef0 Call Trace: <IRQ> </IRQ> <TASK> rcu_barrier+0x284/0x6c0 kernel/rcu/tree.c:4049 fqdir_free_fn+0x32/0x160 net/ipv4/inet_fragment.c:164 process_one_work+0xaa2/0x16f0 kernel/workqueue.c:2597 worker_thread+0x687/0x1110 kernel/workqueue.c:2748 kthread+0x33a/0x430 kernel/kthread.c:389 ret_from_fork+0x2c/0x70 arch/x86/kernel/process.c:145 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:296 RIP: 0000:0x0 Code: Unable to access opcode bytes at 0xffffffffffffffd6. RSP: 0000:0000000000000000 EFLAGS: 00000000 ORIG_RAX: 0000000000000000 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 </TASK>