[ 1321.906511][ T8475] [ 1321.906772][ T8475] ============================= [ 1321.907065][ T8475] WARNING: suspicious RCU usage [ 1321.907370][ T8475] 6.12.0-rc6-virtme #1 Not tainted [ 1321.907553][ T8475] ----------------------------- [ 1321.907727][ T8475] net/ipv6/ip6mr.c:132 RCU-list traversed in non-reader section!! [ 1321.908025][ T8475] [ 1321.908025][ T8475] other info that might help us debug this: [ 1321.908025][ T8475] [ 1321.908732][ T8475] [ 1321.908732][ T8475] rcu_scheduler_active = 2, debug_locks = 1 [ 1321.909079][ T8475] no locks held by smcrouted/8475. [ 1321.909261][ T8475] [ 1321.909261][ T8475] stack backtrace: [ 1321.909506][ T8475] CPU: 2 UID: 0 PID: 8475 Comm: smcrouted Not tainted 6.12.0-rc6-virtme #1 [ 1321.909790][ T8475] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 1321.910021][ T8475] Call Trace: [ 1321.910150][ T8475] [ 1321.910239][ T8475] dump_stack_lvl+0xb0/0xd0 [ 1321.910416][ T8475] lockdep_rcu_suspicious+0x1ea/0x280 [ 1321.910583][ T8475] ip6mr_get_table+0x142/0x190 [ 1321.910748][ T8475] ip6_mroute_setsockopt+0x185/0x12d0 [ 1321.910930][ T8475] ? __pfx_ip6_mroute_setsockopt+0x10/0x10 [ 1321.911587][ T8475] ? __lock_release+0x103/0x460 [ 1321.911751][ T8475] ? __might_fault+0x11b/0x170 [ 1321.911945][ T8475] ? trace_lock_acquire+0x14d/0x1f0 [ 1321.912116][ T8475] ? __might_fault+0xc3/0x170 [ 1321.912279][ T8475] ? lock_acquire+0x32/0xc0 [ 1321.912443][ T8475] ? __might_fault+0xc3/0x170 [ 1321.912605][ T8475] ? __might_fault+0x11b/0x170 [ 1321.912782][ T8475] do_ipv6_setsockopt+0x705/0x34e0 [ 1321.912999][ T8475] ? __lock_release+0xe0/0x460 [ 1321.913166][ T8475] ? __pfx_do_ipv6_setsockopt+0x10/0x10 [ 1321.913333][ T8475] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 1321.913500][ T8475] ? rcu_read_lock_any_held+0x43/0xb0 [ 1321.913663][ T8475] ? validate_chain+0x1fe/0xae0 [ 1321.913838][ T8475] ? is_bpf_text_address+0x67/0x120 [ 1321.914008][ T8475] ? __pfx_validate_chain+0x10/0x10 [ 1321.914177][ T8475] ? hlock_class+0x4e/0x130 [ 1321.914345][ T8475] ? mark_lock+0x38/0x3e0 [ 1321.914474][ T8475] ? __lock_acquire+0xb3f/0x1580 [ 1321.914646][ T8475] ? find_held_lock+0x2c/0x110 [ 1321.914830][ T8475] ? ipv6_setsockopt+0x7f/0xe0 [ 1321.914996][ T8475] ipv6_setsockopt+0x7f/0xe0 [ 1321.915162][ T8475] rawv6_setsockopt+0xb7/0x550 [ 1321.915330][ T8475] ? __pfx_rawv6_setsockopt+0x10/0x10 [ 1321.915496][ T8475] ? __lock_acquire+0xb3f/0x1580 [ 1321.915661][ T8475] ? kfree+0x2d/0x340 [ 1321.915790][ T8475] do_sock_setsockopt+0x149/0x3a0 [ 1321.915994][ T8475] ? __pfx_do_sock_setsockopt+0x10/0x10 [ 1321.916155][ T8475] ? __lock_release+0x103/0x460 [ 1321.916315][ T8475] ? fd_install+0x1d1/0x5a0 [ 1321.916484][ T8475] ? trace_lock_acquire+0x14d/0x1f0 [ 1321.916653][ T8475] ? fdget+0x52/0x1e0 [ 1321.916778][ T8475] __sys_setsockopt+0x104/0x1a0 [ 1321.916959][ T8475] ? __pfx___sys_setsockopt+0x10/0x10 [ 1321.917121][ T8475] ? __sys_socket+0x168/0x1e0 [ 1321.917284][ T8475] ? __pfx___sys_socket+0x10/0x10 [ 1321.917450][ T8475] ? __local_bh_enable+0x80/0x90 [ 1321.917620][ T8475] __x64_sys_setsockopt+0xbd/0x160 [ 1321.917779][ T8475] ? lockdep_hardirqs_on_prepare+0x275/0x410 [ 1321.917989][ T8475] do_syscall_64+0xc1/0x1d0 [ 1321.918159][ T8475] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 1321.918369][ T8475] RIP: 0033:0x7f7f5125391e [ 1321.918541][ T8475] Code: 0f 1f 40 00 48 8b 15 e1 94 0a 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b1 0f 1f 00 f3 0f 1e fa 49 89 ca b8 36 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 0a c3 66 0f 1f 84 00 00 00 00 00 48 8b 15 a9 [ 1321.919115][ T8475] RSP: 002b:00007ffcbd891278 EFLAGS: 00000246 ORIG_RAX: 0000000000000036 [ 1321.919365][ T8475] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f7f5125391e [ 1321.919618][ T8475] RDX: 00000000000000c8 RSI: 0000000000000029 RDI: 0000000000000008 [ 1321.919886][ T8475] RBP: 0000000000000008 R08: 0000000000000004 R09: 0000000000000000 [ 1321.920129][ T8475] R10: 00007ffcbd89129c R11: 0000000000000246 R12: 0000000000000000 [ 1321.920380][ T8475] R13: 0000000000402650 R14: 0000000000411dd8 R15: 00007f7f51358000 [ 1321.920633][ T8475] [ 1321.934292][ T8475] veth0: entered allmulticast mode [ 1321.934980][ T8475] veth1: entered allmulticast mode [ 1321.935369][ T8475] veth2: entered allmulticast mode [ 1321.935737][ T8475] veth3: entered allmulticast mode [ 1321.936068][ T8475] veth4: entered allmulticast mode [ 1321.936482][ T8475] veth5: entered allmulticast mode [ 1348.108960][ T8475] veth0: left allmulticast mode [ 1348.109312][ T8475] veth1: left allmulticast mode [ 1348.109590][ T8475] veth2: left allmulticast mode [ 1348.109849][ T8475] veth3: left allmulticast mode [ 1348.110099][ T8475] veth4: left allmulticast mode [ 1348.110361][ T8475] veth5: left allmulticast mode