[ 1261.309326][ T4454] 
[ 1261.309534][ T4454] =============================
[ 1261.309733][ T4454] WARNING: suspicious RCU usage
[ 1261.309921][ T4454] 6.12.0-rc6-virtme #1 Not tainted
[ 1261.310112][ T4454] -----------------------------
[ 1261.310300][ T4454] net/ipv6/ip6mr.c:132 RCU-list traversed in non-reader section!!
[ 1261.310592][ T4454] 
[ 1261.310592][ T4454] other info that might help us debug this:
[ 1261.310592][ T4454] 
[ 1261.310950][ T4454] 
[ 1261.310950][ T4454] rcu_scheduler_active = 2, debug_locks = 1
[ 1261.311230][ T4454] no locks held by smcrouted/4454.
[ 1261.311435][ T4454] 
[ 1261.311435][ T4454] stack backtrace:
[ 1261.311664][ T4454] CPU: 2 UID: 0 PID: 4454 Comm: smcrouted Not tainted 6.12.0-rc6-virtme #1
[ 1261.311969][ T4454] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 1261.312183][ T4454] Call Trace:
[ 1261.312319][ T4454]  <TASK>
[ 1261.312418][ T4454]  dump_stack_lvl+0xb0/0xd0
[ 1261.312603][ T4454]  lockdep_rcu_suspicious+0x1ea/0x280
[ 1261.312788][ T4454]  ip6mr_get_table+0x142/0x190
[ 1261.312975][ T4454]  ip6_mroute_setsockopt+0x185/0x12d0
[ 1261.313153][ T4454]  ? __pfx_ip6_mroute_setsockopt+0x10/0x10
[ 1261.313377][ T4454]  ? __lock_release+0x103/0x460
[ 1261.313553][ T4454]  ? __might_fault+0x11b/0x170
[ 1261.313734][ T4454]  ? trace_lock_acquire+0x14d/0x1f0
[ 1261.313923][ T4454]  ? __might_fault+0xc3/0x170
[ 1261.314095][ T4454]  ? lock_acquire+0x32/0xc0
[ 1261.314274][ T4454]  ? __might_fault+0xc3/0x170
[ 1261.314450][ T4454]  ? __might_fault+0x11b/0x170
[ 1261.314628][ T4454]  do_ipv6_setsockopt+0x705/0x34e0
[ 1261.314807][ T4454]  ? __lock_release+0xe0/0x460
[ 1261.314983][ T4454]  ? __pfx_do_ipv6_setsockopt+0x10/0x10
[ 1261.315136][ T4454]  ? __pfx_lock_acquire.part.0+0x10/0x10
[ 1261.315326][ T4454]  ? rcu_read_lock_any_held+0x43/0xb0
[ 1261.315502][ T4454]  ? validate_chain+0x1fe/0xae0
[ 1261.315676][ T4454]  ? is_bpf_text_address+0x67/0x120
[ 1261.315856][ T4454]  ? __pfx_validate_chain+0x10/0x10
[ 1261.316018][ T4454]  ? hlock_class+0x4e/0x130
[ 1261.316181][ T4454]  ? mark_lock+0x38/0x3e0
[ 1261.316309][ T4454]  ? __lock_acquire+0xb3f/0x1580
[ 1261.316487][ T4454]  ? find_held_lock+0x2c/0x110
[ 1261.316653][ T4454]  ? ipv6_setsockopt+0x7f/0xe0
[ 1261.316811][ T4454]  ipv6_setsockopt+0x7f/0xe0
[ 1261.316974][ T4454]  rawv6_setsockopt+0xb7/0x550
[ 1261.317136][ T4454]  ? __pfx_rawv6_setsockopt+0x10/0x10
[ 1261.317299][ T4454]  ? __lock_acquire+0xb3f/0x1580
[ 1261.317456][ T4454]  ? kfree+0x2d/0x340
[ 1261.317582][ T4454]  do_sock_setsockopt+0x149/0x3a0
[ 1261.317738][ T4454]  ? __pfx_do_sock_setsockopt+0x10/0x10
[ 1261.317894][ T4454]  ? __lock_release+0x103/0x460
[ 1261.318049][ T4454]  ? fd_install+0x1d1/0x5a0
[ 1261.318209][ T4454]  ? trace_lock_acquire+0x14d/0x1f0
[ 1261.318367][ T4454]  ? fdget+0x52/0x1e0
[ 1261.318496][ T4454]  __sys_setsockopt+0x104/0x1a0
[ 1261.318654][ T4454]  ? __pfx___sys_setsockopt+0x10/0x10
[ 1261.318809][ T4454]  ? __sys_socket+0x168/0x1e0
[ 1261.318967][ T4454]  ? __pfx___sys_socket+0x10/0x10
[ 1261.319129][ T4454]  ? do_user_addr_fault+0x374/0xe30
[ 1261.319291][ T4454]  __x64_sys_setsockopt+0xbd/0x160
[ 1261.319445][ T4454]  ? lockdep_hardirqs_on_prepare+0x275/0x410
[ 1261.319640][ T4454]  do_syscall_64+0xc1/0x1d0
[ 1261.319803][ T4454]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 1261.319996][ T4454] RIP: 0033:0x7fc9a82c891e
[ 1261.320161][ T4454] 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
[ 1261.320701][ T4454] RSP: 002b:00007fffc4d93618 EFLAGS: 00000246 ORIG_RAX: 0000000000000036
[ 1261.320938][ T4454] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fc9a82c891e
[ 1261.321188][ T4454] RDX: 00000000000000c8 RSI: 0000000000000029 RDI: 0000000000000008
[ 1261.321446][ T4454] RBP: 0000000000000008 R08: 0000000000000004 R09: 0000000011804010
[ 1261.321697][ T4454] R10: 00007fffc4d9363c R11: 0000000000000246 R12: 0000000000000000
[ 1261.321954][ T4454] R13: 0000000000402650 R14: 0000000000411dd8 R15: 00007fc9a83cd000
[ 1261.322229][ T4454]  </TASK>
[ 1261.325828][ T4454] veth0: entered allmulticast mode
[ 1261.326379][ T4454] veth1: entered allmulticast mode
[ 1261.326782][ T4454] veth2: entered allmulticast mode
[ 1261.327136][ T4454] veth3: entered allmulticast mode
[ 1261.327501][ T4454] veth4: entered allmulticast mode
[ 1261.327854][ T4454] veth5: entered allmulticast mode
[ 1271.871382][ T4540] GACT probability NOT on
[ 1287.316081][ T4454] veth0: left allmulticast mode
[ 1287.316382][ T4454] veth1: left allmulticast mode
[ 1287.316622][ T4454] veth2: left allmulticast mode
[ 1287.316844][ T4454] veth3: left allmulticast mode
[ 1287.317072][ T4454] veth4: left allmulticast mode
[ 1287.317293][ T4454] veth5: left allmulticast mode