[ 1732.286419][ T5223] [ 1732.286548][ T5223] ============================= [ 1732.286703][ T5223] WARNING: suspicious RCU usage [ 1732.286872][ T5223] 6.12.0-rc6-virtme #1 Not tainted [ 1732.287021][ T5223] ----------------------------- [ 1732.287176][ T5223] net/ipv6/ip6mr.c:132 RCU-list traversed in non-reader section!! [ 1732.287404][ T5223] [ 1732.287404][ T5223] other info that might help us debug this: [ 1732.287404][ T5223] [ 1732.287702][ T5223] [ 1732.287702][ T5223] rcu_scheduler_active = 2, debug_locks = 1 [ 1732.288710][ T5223] no locks held by smcrouted/5223. [ 1732.288922][ T5223] [ 1732.288922][ T5223] stack backtrace: [ 1732.289184][ T5223] CPU: 2 UID: 0 PID: 5223 Comm: smcrouted Not tainted 6.12.0-rc6-virtme #1 [ 1732.289448][ T5223] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 1732.289791][ T5223] Call Trace: [ 1732.289917][ T5223] [ 1732.290001][ T5223] dump_stack_lvl+0xb0/0xd0 [ 1732.290171][ T5223] lockdep_rcu_suspicious+0x1ea/0x280 [ 1732.290328][ T5223] ip6mr_get_table+0x142/0x190 [ 1732.290482][ T5223] ip6_mroute_setsockopt+0x185/0x12d0 [ 1732.290634][ T5223] ? __pfx_ip6_mroute_setsockopt+0x10/0x10 [ 1732.290826][ T5223] ? __lock_release+0x103/0x460 [ 1732.290977][ T5223] ? __might_fault+0x11b/0x170 [ 1732.291129][ T5223] ? trace_lock_acquire+0x14d/0x1f0 [ 1732.291285][ T5223] ? __might_fault+0xc3/0x170 [ 1732.291441][ T5223] ? lock_acquire+0x32/0xc0 [ 1732.291589][ T5223] ? __might_fault+0xc3/0x170 [ 1732.291740][ T5223] ? __might_fault+0x11b/0x170 [ 1732.291896][ T5223] do_ipv6_setsockopt+0x705/0x34e0 [ 1732.292053][ T5223] ? __lock_release+0xe0/0x460 [ 1732.292205][ T5223] ? __pfx_do_ipv6_setsockopt+0x10/0x10 [ 1732.292353][ T5223] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 1732.292506][ T5223] ? rcu_read_lock_any_held+0x43/0xb0 [ 1732.292654][ T5223] ? validate_chain+0x1fe/0xae0 [ 1732.292803][ T5223] ? is_bpf_text_address+0x67/0x120 [ 1732.292965][ T5223] ? __pfx_validate_chain+0x10/0x10 [ 1732.293116][ T5223] ? hlock_class+0x4e/0x130 [ 1732.293264][ T5223] ? mark_lock+0x38/0x3e0 [ 1732.293382][ T5223] ? __lock_acquire+0xb3f/0x1580 [ 1732.293538][ T5223] ? find_held_lock+0x2c/0x110 [ 1732.293697][ T5223] ? ipv6_setsockopt+0x7f/0xe0 [ 1732.293849][ T5223] ipv6_setsockopt+0x7f/0xe0 [ 1732.294011][ T5223] rawv6_setsockopt+0xb7/0x550 [ 1732.294169][ T5223] ? __pfx_rawv6_setsockopt+0x10/0x10 [ 1732.294317][ T5223] ? __lock_acquire+0xb3f/0x1580 [ 1732.294469][ T5223] ? kfree+0x2d/0x340 [ 1732.294596][ T5223] do_sock_setsockopt+0x149/0x3a0 [ 1732.294748][ T5223] ? __pfx_do_sock_setsockopt+0x10/0x10 [ 1732.294896][ T5223] ? __lock_release+0x103/0x460 [ 1732.295046][ T5223] ? fd_install+0x1d1/0x5a0 [ 1732.295199][ T5223] ? trace_lock_acquire+0x14d/0x1f0 [ 1732.295349][ T5223] ? fdget+0x52/0x1e0 [ 1732.295468][ T5223] __sys_setsockopt+0x104/0x1a0 [ 1732.295623][ T5223] ? __pfx___sys_setsockopt+0x10/0x10 [ 1732.295777][ T5223] ? __sys_socket+0x168/0x1e0 [ 1732.295927][ T5223] ? __pfx___sys_socket+0x10/0x10 [ 1732.296085][ T5223] __x64_sys_setsockopt+0xbd/0x160 [ 1732.296245][ T5223] ? lockdep_hardirqs_on_prepare+0x275/0x410 [ 1732.296437][ T5223] do_syscall_64+0xc1/0x1d0 [ 1732.296591][ T5223] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 1732.296779][ T5223] RIP: 0033:0x7fde2456f91e [ 1732.296942][ T5223] 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 [ 1732.297466][ T5223] RSP: 002b:00007ffec5e75798 EFLAGS: 00000246 ORIG_RAX: 0000000000000036 [ 1732.297696][ T5223] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fde2456f91e [ 1732.297927][ T5223] RDX: 00000000000000c8 RSI: 0000000000000029 RDI: 0000000000000008 [ 1732.298150][ T5223] RBP: 0000000000000008 R08: 0000000000000004 R09: 0000000000000000 [ 1732.298374][ T5223] R10: 00007ffec5e757bc R11: 0000000000000246 R12: 0000000000000000 [ 1732.298596][ T5223] R13: 0000000000402650 R14: 0000000000411dd8 R15: 00007fde24674000 [ 1732.298831][ T5223] [ 1732.304959][ T5223] veth0: entered allmulticast mode [ 1732.305560][ T5223] veth1: entered allmulticast mode [ 1732.307424][ T5223] veth2: entered allmulticast mode [ 1732.307795][ T5223] veth3: entered allmulticast mode [ 1732.308188][ T5223] veth4: entered allmulticast mode [ 1732.308551][ T5223] veth5: entered allmulticast mode [ 1780.126356][ T5223] veth0: left allmulticast mode [ 1780.126728][ T5223] veth1: left allmulticast mode [ 1780.127024][ T5223] veth2: left allmulticast mode [ 1780.127287][ T5223] veth3: left allmulticast mode [ 1780.127557][ T5223] veth4: left allmulticast mode [ 1780.127842][ T5223] veth5: left allmulticast mode