[ 1294.745272][ T8305] 
[ 1294.745409][ T8305] =============================
[ 1294.745572][ T8305] WARNING: suspicious RCU usage
[ 1294.745774][ T8305] 6.12.0-rc7-virtme #1 Not tainted
[ 1294.745946][ T8305] -----------------------------
[ 1294.746116][ T8305] net/ipv6/ip6mr.c:132 RCU-list traversed in non-reader section!!
[ 1294.747191][ T8305] 
[ 1294.747191][ T8305] other info that might help us debug this:
[ 1294.747191][ T8305] 
[ 1294.747633][ T8305] 
[ 1294.747633][ T8305] rcu_scheduler_active = 2, debug_locks = 1
[ 1294.747890][ T8305] no locks held by smcrouted/8305.
[ 1294.748064][ T8305] 
[ 1294.748064][ T8305] stack backtrace:
[ 1294.748285][ T8305] CPU: 0 UID: 0 PID: 8305 Comm: smcrouted Not tainted 6.12.0-rc7-virtme #1
[ 1294.748588][ T8305] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 1294.748815][ T8305] Call Trace:
[ 1294.748954][ T8305]  <TASK>
[ 1294.749046][ T8305]  dump_stack_lvl+0xb0/0xd0
[ 1294.749236][ T8305]  lockdep_rcu_suspicious+0x1ea/0x280
[ 1294.749415][ T8305]  ip6mr_get_table+0x142/0x190
[ 1294.749590][ T8305]  ip6_mroute_setsockopt+0x185/0x12d0
[ 1294.749767][ T8305]  ? __pfx_ip6_mroute_setsockopt+0x10/0x10
[ 1294.749992][ T8305]  ? __lock_release+0x103/0x460
[ 1294.750166][ T8305]  ? __might_fault+0x11b/0x170
[ 1294.750342][ T8305]  ? trace_lock_acquire+0x14d/0x1f0
[ 1294.750513][ T8305]  ? __might_fault+0xc3/0x170
[ 1294.750682][ T8305]  ? lock_acquire+0x32/0xc0
[ 1294.750852][ T8305]  ? __might_fault+0xc3/0x170
[ 1294.751023][ T8305]  ? __might_fault+0x11b/0x170
[ 1294.751198][ T8305]  do_ipv6_setsockopt+0x705/0x34e0
[ 1294.751376][ T8305]  ? __lock_release+0x10/0x460
[ 1294.751549][ T8305]  ? __pfx_do_ipv6_setsockopt+0x10/0x10
[ 1294.751716][ T8305]  ? __pfx_lock_acquire.part.0+0x10/0x10
[ 1294.751891][ T8305]  ? rcu_read_lock_any_held+0x43/0xb0
[ 1294.752062][ T8305]  ? validate_chain+0x1fe/0xae0
[ 1294.752228][ T8305]  ? is_bpf_text_address+0x67/0x120
[ 1294.752408][ T8305]  ? __pfx_validate_chain+0x10/0x10
[ 1294.752585][ T8305]  ? hlock_class+0x4e/0x130
[ 1294.752759][ T8305]  ? mark_lock+0x38/0x3e0
[ 1294.752896][ T8305]  ? __lock_acquire+0xb3f/0x1580
[ 1294.753085][ T8305]  ? find_held_lock+0x2c/0x110
[ 1294.753265][ T8305]  ? ipv6_setsockopt+0x7f/0xe0
[ 1294.753431][ T8305]  ipv6_setsockopt+0x7f/0xe0
[ 1294.753602][ T8305]  rawv6_setsockopt+0xb7/0x550
[ 1294.753775][ T8305]  ? __pfx_rawv6_setsockopt+0x10/0x10
[ 1294.753958][ T8305]  ? __lock_acquire+0xb3f/0x1580
[ 1294.754118][ T8305]  ? kfree+0x2d/0x340
[ 1294.754245][ T8305]  do_sock_setsockopt+0x149/0x3a0
[ 1294.754405][ T8305]  ? __pfx_do_sock_setsockopt+0x10/0x10
[ 1294.754569][ T8305]  ? __lock_release+0x103/0x460
[ 1294.754726][ T8305]  ? fd_install+0x1d1/0x5a0
[ 1294.754895][ T8305]  ? trace_lock_acquire+0x14d/0x1f0
[ 1294.755054][ T8305]  ? fdget+0x52/0x1e0
[ 1294.755176][ T8305]  __sys_setsockopt+0x104/0x1a0
[ 1294.755342][ T8305]  ? __pfx___sys_setsockopt+0x10/0x10
[ 1294.755500][ T8305]  ? __sys_socket+0x168/0x1e0
[ 1294.755654][ T8305]  ? __pfx___sys_socket+0x10/0x10
[ 1294.755816][ T8305]  ? do_user_addr_fault+0x374/0xe30
[ 1294.755978][ T8305]  __x64_sys_setsockopt+0xbd/0x160
[ 1294.756138][ T8305]  ? lockdep_hardirqs_on_prepare+0x275/0x410
[ 1294.756329][ T8305]  do_syscall_64+0xc1/0x1d0
[ 1294.756492][ T8305]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 1294.756714][ T8305] RIP: 0033:0x7f1ae7d0f91e
[ 1294.756883][ T8305] 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
[ 1294.757440][ T8305] RSP: 002b:00007ffe57afab28 EFLAGS: 00000246 ORIG_RAX: 0000000000000036
[ 1294.757693][ T8305] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f1ae7d0f91e
[ 1294.757945][ T8305] RDX: 00000000000000c8 RSI: 0000000000000029 RDI: 0000000000000008
[ 1294.758190][ T8305] RBP: 0000000000000008 R08: 0000000000000004 R09: 0000000000000000
[ 1294.758427][ T8305] R10: 00007ffe57afab4c R11: 0000000000000246 R12: 0000000000000000
[ 1294.758674][ T8305] R13: 0000000000402650 R14: 0000000000411dd8 R15: 00007f1ae7e14000
[ 1294.758932][ T8305]  </TASK>
[ 1294.762422][ T8305] veth0: entered allmulticast mode
[ 1294.762990][ T8305] veth1: entered allmulticast mode
[ 1294.763335][ T8305] veth2: entered allmulticast mode
[ 1294.763696][ T8305] veth3: entered allmulticast mode
[ 1313.910378][ T8305] veth0: left allmulticast mode
[ 1313.910846][ T8305] veth1: left allmulticast mode
[ 1313.911230][ T8305] veth2: left allmulticast mode
[ 1313.911588][ T8305] veth3: left allmulticast mode