[ 1257.982160][ T4455] 
[ 1257.982364][ T4455] =============================
[ 1257.982631][ T4455] WARNING: suspicious RCU usage
[ 1257.982915][ T4455] 6.12.0-rc7-virtme #1 Not tainted
[ 1257.983173][ T4455] -----------------------------
[ 1257.983430][ T4455] net/ipv6/ip6mr.c:132 RCU-list traversed in non-reader section!!
[ 1257.983810][ T4455] 
[ 1257.983810][ T4455] other info that might help us debug this:
[ 1257.983810][ T4455] 
[ 1257.984318][ T4455] 
[ 1257.984318][ T4455] rcu_scheduler_active = 2, debug_locks = 1
[ 1257.984695][ T4455] no locks held by smcrouted/4455.
[ 1257.984984][ T4455] 
[ 1257.984984][ T4455] stack backtrace:
[ 1257.985296][ T4455] CPU: 3 UID: 0 PID: 4455 Comm: smcrouted Not tainted 6.12.0-rc7-virtme #1
[ 1257.985627][ T4455] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 1257.985831][ T4455] Call Trace:
[ 1257.985968][ T4455]  <TASK>
[ 1257.986054][ T4455]  dump_stack_lvl+0xb0/0xd0
[ 1257.986260][ T4455]  lockdep_rcu_suspicious+0x1ea/0x280
[ 1257.986423][ T4455]  ip6mr_get_table+0x142/0x190
[ 1257.986590][ T4455]  ip6_mroute_setsockopt+0x185/0x12d0
[ 1257.986753][ T4455]  ? __pfx_ip6_mroute_setsockopt+0x10/0x10
[ 1257.986960][ T4455]  ? __lock_release+0x103/0x460
[ 1257.987130][ T4455]  ? __might_fault+0x11b/0x170
[ 1257.987289][ T4455]  ? trace_lock_acquire+0x14d/0x1f0
[ 1257.987453][ T4455]  ? __might_fault+0xc3/0x170
[ 1257.987609][ T4455]  ? lock_acquire+0x32/0xc0
[ 1257.987771][ T4455]  ? __might_fault+0xc3/0x170
[ 1257.987933][ T4455]  ? __might_fault+0x11b/0x170
[ 1257.988118][ T4455]  do_ipv6_setsockopt+0x705/0x34e0
[ 1257.988283][ T4455]  ? __lock_release+0x40/0x460
[ 1257.988447][ T4455]  ? __pfx_do_ipv6_setsockopt+0x10/0x10
[ 1257.988604][ T4455]  ? __pfx_lock_acquire.part.0+0x10/0x10
[ 1257.988776][ T4455]  ? rcu_read_lock_any_held+0x43/0xb0
[ 1257.988939][ T4455]  ? validate_chain+0x1fe/0xae0
[ 1257.989131][ T4455]  ? is_bpf_text_address+0x67/0x120
[ 1257.989403][ T4455]  ? __pfx_validate_chain+0x10/0x10
[ 1257.989576][ T4455]  ? hlock_class+0x4e/0x130
[ 1257.989739][ T4455]  ? mark_lock+0x38/0x3e0
[ 1257.989867][ T4455]  ? __lock_acquire+0xb3f/0x1580
[ 1257.990035][ T4455]  ? find_held_lock+0x2c/0x110
[ 1257.990207][ T4455]  ? ipv6_setsockopt+0x7f/0xe0
[ 1257.990364][ T4455]  ipv6_setsockopt+0x7f/0xe0
[ 1257.990528][ T4455]  rawv6_setsockopt+0xb7/0x550
[ 1257.990690][ T4455]  ? __pfx_rawv6_setsockopt+0x10/0x10
[ 1257.990848][ T4455]  ? __lock_acquire+0xb3f/0x1580
[ 1257.991013][ T4455]  ? kfree+0x2d/0x340
[ 1257.991153][ T4455]  do_sock_setsockopt+0x149/0x3a0
[ 1257.991308][ T4455]  ? __pfx_do_sock_setsockopt+0x10/0x10
[ 1257.991464][ T4455]  ? __lock_release+0x103/0x460
[ 1257.991618][ T4455]  ? fd_install+0x1d1/0x5a0
[ 1257.991783][ T4455]  ? trace_lock_acquire+0x14d/0x1f0
[ 1257.991942][ T4455]  ? fdget+0x52/0x1e0
[ 1257.992071][ T4455]  __sys_setsockopt+0x104/0x1a0
[ 1257.992237][ T4455]  ? __pfx___sys_setsockopt+0x10/0x10
[ 1257.992395][ T4455]  ? __sys_socket+0x168/0x1e0
[ 1257.992551][ T4455]  ? __pfx___sys_socket+0x10/0x10
[ 1257.992706][ T4455]  ? do_user_addr_fault+0x374/0xe30
[ 1257.992866][ T4455]  __x64_sys_setsockopt+0xbd/0x160
[ 1257.993025][ T4455]  ? lockdep_hardirqs_on_prepare+0x275/0x410
[ 1257.993232][ T4455]  do_syscall_64+0xc1/0x1d0
[ 1257.993391][ T4455]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 1257.993595][ T4455] RIP: 0033:0x7fd755b3e91e
[ 1257.993767][ T4455] 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
[ 1257.994323][ T4455] RSP: 002b:00007ffe6aa0cb98 EFLAGS: 00000246 ORIG_RAX: 0000000000000036
[ 1257.994567][ T4455] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fd755b3e91e
[ 1257.994807][ T4455] RDX: 00000000000000c8 RSI: 0000000000000029 RDI: 0000000000000008
[ 1257.995044][ T4455] RBP: 0000000000000008 R08: 0000000000000004 R09: 000000003edd8010
[ 1257.995293][ T4455] R10: 00007ffe6aa0cbbc R11: 0000000000000246 R12: 0000000000000000
[ 1257.995529][ T4455] R13: 0000000000402650 R14: 0000000000411dd8 R15: 00007fd755c43000
[ 1257.995783][ T4455]  </TASK>
[ 1258.000457][ T4455] veth0: entered allmulticast mode
[ 1258.002182][ T4455] veth1: entered allmulticast mode
[ 1258.002519][ T4455] veth2: entered allmulticast mode
[ 1258.002831][ T4455] veth3: entered allmulticast mode
[ 1258.003209][ T4455] veth4: entered allmulticast mode
[ 1258.003545][ T4455] veth5: entered allmulticast mode
[ 1268.746285][ T4541] GACT probability NOT on
[ 1285.240393][ T4455] veth0: left allmulticast mode
[ 1285.240726][ T4455] veth1: left allmulticast mode
[ 1285.241103][ T4455] veth2: left allmulticast mode
[ 1285.241327][ T4455] veth3: left allmulticast mode
[ 1285.241580][ T4455] veth4: left allmulticast mode
[ 1285.241812][ T4455] veth5: left allmulticast mode