[ 1290.764979][ T7726] 
[ 1290.765106][ T7726] =============================
[ 1290.765268][ T7726] WARNING: suspicious RCU usage
[ 1290.765430][ T7726] 6.12.0-rc6-virtme #1 Not tainted
[ 1290.765605][ T7726] -----------------------------
[ 1290.765811][ T7726] net/ipv6/ip6mr.c:132 RCU-list traversed in non-reader section!!
[ 1290.766038][ T7726] 
[ 1290.766038][ T7726] other info that might help us debug this:
[ 1290.766038][ T7726] 
[ 1290.766337][ T7726] 
[ 1290.766337][ T7726] rcu_scheduler_active = 2, debug_locks = 1
[ 1290.766575][ T7726] no locks held by smcrouted/7726.
[ 1290.766739][ T7726] 
[ 1290.766739][ T7726] stack backtrace:
[ 1290.766932][ T7726] CPU: 3 UID: 0 PID: 7726 Comm: smcrouted Not tainted 6.12.0-rc6-virtme #1
[ 1290.767199][ T7726] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 1290.767400][ T7726] Call Trace:
[ 1290.767528][ T7726]  <TASK>
[ 1290.767616][ T7726]  dump_stack_lvl+0xb0/0xd0
[ 1290.767791][ T7726]  lockdep_rcu_suspicious+0x1ea/0x280
[ 1290.767949][ T7726]  ip6mr_get_table+0x142/0x190
[ 1290.768115][ T7726]  ip6_mroute_setsockopt+0x185/0x12d0
[ 1290.768280][ T7726]  ? __pfx_ip6_mroute_setsockopt+0x10/0x10
[ 1290.768483][ T7726]  ? __lock_release+0x103/0x460
[ 1290.768639][ T7726]  ? __might_fault+0x11b/0x170
[ 1290.768798][ T7726]  ? trace_lock_acquire+0x14d/0x1f0
[ 1290.768968][ T7726]  ? __might_fault+0xc3/0x170
[ 1290.769122][ T7726]  ? lock_acquire+0x32/0xc0
[ 1290.769276][ T7726]  ? __might_fault+0xc3/0x170
[ 1290.769435][ T7726]  ? __might_fault+0x11b/0x170
[ 1290.769601][ T7726]  do_ipv6_setsockopt+0x705/0x34e0
[ 1290.769759][ T7726]  ? __lock_release+0xe0/0x460
[ 1290.769914][ T7726]  ? __pfx_do_ipv6_setsockopt+0x10/0x10
[ 1290.770089][ T7726]  ? __pfx_lock_acquire.part.0+0x10/0x10
[ 1290.770260][ T7726]  ? rcu_read_lock_any_held+0x43/0xb0
[ 1290.770421][ T7726]  ? validate_chain+0x1fe/0xae0
[ 1290.770578][ T7726]  ? is_bpf_text_address+0x67/0x120
[ 1290.770742][ T7726]  ? __pfx_validate_chain+0x10/0x10
[ 1290.770899][ T7726]  ? hlock_class+0x4e/0x130
[ 1290.771056][ T7726]  ? mark_lock+0x38/0x3e0
[ 1290.771182][ T7726]  ? __lock_acquire+0xb3f/0x1580
[ 1290.771348][ T7726]  ? find_held_lock+0x2c/0x110
[ 1290.771513][ T7726]  ? ipv6_setsockopt+0x7f/0xe0
[ 1290.771678][ T7726]  ipv6_setsockopt+0x7f/0xe0
[ 1290.771840][ T7726]  rawv6_setsockopt+0xb7/0x550
[ 1290.772002][ T7726]  ? __pfx_rawv6_setsockopt+0x10/0x10
[ 1290.772161][ T7726]  ? __lock_acquire+0xb3f/0x1580
[ 1290.772324][ T7726]  ? kfree+0x2d/0x340
[ 1290.772451][ T7726]  do_sock_setsockopt+0x149/0x3a0
[ 1290.772614][ T7726]  ? __pfx_do_sock_setsockopt+0x10/0x10
[ 1290.772766][ T7726]  ? __lock_release+0x103/0x460
[ 1290.772929][ T7726]  ? fd_install+0x1d1/0x5a0
[ 1290.773098][ T7726]  ? trace_lock_acquire+0x14d/0x1f0
[ 1290.773258][ T7726]  ? fdget+0x52/0x1e0
[ 1290.773383][ T7726]  __sys_setsockopt+0x104/0x1a0
[ 1290.773546][ T7726]  ? __pfx___sys_setsockopt+0x10/0x10
[ 1290.773707][ T7726]  ? __sys_socket+0x168/0x1e0
[ 1290.773875][ T7726]  ? __pfx___sys_socket+0x10/0x10
[ 1290.774044][ T7726]  __x64_sys_setsockopt+0xbd/0x160
[ 1290.774198][ T7726]  ? lockdep_hardirqs_on_prepare+0x275/0x410
[ 1290.774399][ T7726]  do_syscall_64+0xc1/0x1d0
[ 1290.774566][ T7726]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 1290.774757][ T7726] RIP: 0033:0x7fd22fae291e
[ 1290.774936][ T7726] 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
[ 1290.775481][ T7726] RSP: 002b:00007ffe6aeee458 EFLAGS: 00000246 ORIG_RAX: 0000000000000036
[ 1290.775726][ T7726] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fd22fae291e
[ 1290.775961][ T7726] RDX: 00000000000000c8 RSI: 0000000000000029 RDI: 0000000000000008
[ 1290.776203][ T7726] RBP: 0000000000000008 R08: 0000000000000004 R09: 0000000000000000
[ 1290.776441][ T7726] R10: 00007ffe6aeee47c R11: 0000000000000246 R12: 0000000000000000
[ 1290.776679][ T7726] R13: 0000000000402650 R14: 0000000000411dd8 R15: 00007fd22fbe7000
[ 1290.776921][ T7726]  </TASK>
[ 1290.782334][ T7726] veth0: entered allmulticast mode
[ 1290.782927][ T7726] veth1: entered allmulticast mode
[ 1290.783281][ T7726] veth2: entered allmulticast mode
[ 1290.783642][ T7726] veth3: entered allmulticast mode
[ 1309.709671][ T7726] veth0: left allmulticast mode
[ 1309.710079][ T7726] veth1: left allmulticast mode
[ 1309.710364][ T7726] veth2: left allmulticast mode
[ 1309.710661][ T7726] veth3: left allmulticast mode