[ 1344.555677][ T8482] 
[ 1344.555862][ T8482] =============================
[ 1344.556046][ T8482] WARNING: suspicious RCU usage
[ 1344.556257][ T8482] 6.12.0-rc6-virtme #1 Not tainted
[ 1344.556441][ T8482] -----------------------------
[ 1344.556619][ T8482] net/ipv6/ip6mr.c:132 RCU-list traversed in non-reader section!!
[ 1344.556863][ T8482] 
[ 1344.556863][ T8482] other info that might help us debug this:
[ 1344.556863][ T8482] 
[ 1344.557179][ T8482] 
[ 1344.557179][ T8482] rcu_scheduler_active = 2, debug_locks = 1
[ 1344.557442][ T8482] no locks held by smcrouted/8482.
[ 1344.557633][ T8482] 
[ 1344.557633][ T8482] stack backtrace:
[ 1344.557850][ T8482] CPU: 2 UID: 0 PID: 8482 Comm: smcrouted Not tainted 6.12.0-rc6-virtme #1
[ 1344.558132][ T8482] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 1344.558332][ T8482] Call Trace:
[ 1344.558468][ T8482]  <TASK>
[ 1344.558556][ T8482]  dump_stack_lvl+0xb0/0xd0
[ 1344.558728][ T8482]  lockdep_rcu_suspicious+0x1ea/0x280
[ 1344.558894][ T8482]  ip6mr_get_table+0x142/0x190
[ 1344.559064][ T8482]  ip6_mroute_setsockopt+0x185/0x12d0
[ 1344.559227][ T8482]  ? __pfx_ip6_mroute_setsockopt+0x10/0x10
[ 1344.559434][ T8482]  ? __lock_release+0x103/0x460
[ 1344.559592][ T8482]  ? __might_fault+0x11b/0x170
[ 1344.559751][ T8482]  ? trace_lock_acquire+0x14d/0x1f0
[ 1344.559917][ T8482]  ? __might_fault+0xc3/0x170
[ 1344.560071][ T8482]  ? lock_acquire+0x32/0xc0
[ 1344.560233][ T8482]  ? __might_fault+0xc3/0x170
[ 1344.560396][ T8482]  ? __might_fault+0x11b/0x170
[ 1344.560575][ T8482]  do_ipv6_setsockopt+0x705/0x34e0
[ 1344.560741][ T8482]  ? __lock_release+0xe0/0x460
[ 1344.560899][ T8482]  ? __pfx_do_ipv6_setsockopt+0x10/0x10
[ 1344.561057][ T8482]  ? __pfx_lock_acquire.part.0+0x10/0x10
[ 1344.561228][ T8482]  ? rcu_read_lock_any_held+0x43/0xb0
[ 1344.561391][ T8482]  ? validate_chain+0x1fe/0xae0
[ 1344.561553][ T8482]  ? is_bpf_text_address+0x67/0x120
[ 1344.561716][ T8482]  ? __pfx_validate_chain+0x10/0x10
[ 1344.561873][ T8482]  ? hlock_class+0x4e/0x130
[ 1344.562030][ T8482]  ? mark_lock+0x38/0x3e0
[ 1344.562157][ T8482]  ? __lock_acquire+0xb3f/0x1580
[ 1344.562323][ T8482]  ? find_held_lock+0x2c/0x110
[ 1344.562489][ T8482]  ? ipv6_setsockopt+0x7f/0xe0
[ 1344.562655][ T8482]  ipv6_setsockopt+0x7f/0xe0
[ 1344.562816][ T8482]  rawv6_setsockopt+0xb7/0x550
[ 1344.562975][ T8482]  ? __pfx_rawv6_setsockopt+0x10/0x10
[ 1344.563137][ T8482]  ? __lock_acquire+0xb3f/0x1580
[ 1344.563296][ T8482]  ? kfree+0x2d/0x340
[ 1344.563425][ T8482]  do_sock_setsockopt+0x149/0x3a0
[ 1344.563584][ T8482]  ? __pfx_do_sock_setsockopt+0x10/0x10
[ 1344.563741][ T8482]  ? __lock_release+0x103/0x460
[ 1344.563900][ T8482]  ? fd_install+0x1d1/0x5a0
[ 1344.564063][ T8482]  ? trace_lock_acquire+0x14d/0x1f0
[ 1344.564222][ T8482]  ? fdget+0x52/0x1e0
[ 1344.564353][ T8482]  __sys_setsockopt+0x104/0x1a0
[ 1344.564516][ T8482]  ? __pfx___sys_setsockopt+0x10/0x10
[ 1344.564672][ T8482]  ? __sys_socket+0x168/0x1e0
[ 1344.564831][ T8482]  ? __pfx___sys_socket+0x10/0x10
[ 1344.564987][ T8482]  ? do_user_addr_fault+0x374/0xe30
[ 1344.565150][ T8482]  __x64_sys_setsockopt+0xbd/0x160
[ 1344.565309][ T8482]  ? lockdep_hardirqs_on_prepare+0x275/0x410
[ 1344.565510][ T8482]  do_syscall_64+0xc1/0x1d0
[ 1344.565670][ T8482]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 1344.565865][ T8482] RIP: 0033:0x7f58006b691e
[ 1344.566030][ T8482] 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
[ 1344.566582][ T8482] RSP: 002b:00007ffcf33ad2e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000036
[ 1344.566827][ T8482] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f58006b691e
[ 1344.567064][ T8482] RDX: 00000000000000c8 RSI: 0000000000000029 RDI: 0000000000000008
[ 1344.567301][ T8482] RBP: 0000000000000008 R08: 0000000000000004 R09: 0000000000000000
[ 1344.567537][ T8482] R10: 00007ffcf33ad30c R11: 0000000000000246 R12: 0000000000000000
[ 1344.567774][ T8482] R13: 0000000000402650 R14: 0000000000411dd8 R15: 00007f58007bb000
[ 1344.568019][ T8482]  </TASK>
[ 1344.579562][ T8482] veth0: entered allmulticast mode
[ 1344.580173][ T8482] veth1: entered allmulticast mode
[ 1344.580565][ T8482] veth2: entered allmulticast mode
[ 1344.580911][ T8482] veth3: entered allmulticast mode
[ 1363.005085][ T8482] veth0: left allmulticast mode
[ 1363.005516][ T8482] veth1: left allmulticast mode
[ 1363.005763][ T8482] veth2: left allmulticast mode
[ 1363.005999][ T8482] veth3: left allmulticast mode