[ 1295.687607][ T9761] 
[ 1295.687799][ T9761] =============================
[ 1295.687995][ T9761] WARNING: suspicious RCU usage
[ 1295.688194][ T9761] 6.12.0-rc7-virtme #1 Not tainted
[ 1295.688371][ T9761] -----------------------------
[ 1295.688544][ T9761] net/ipv6/ip6mr.c:132 RCU-list traversed in non-reader section!!
[ 1295.688802][ T9761] 
[ 1295.688802][ T9761] other info that might help us debug this:
[ 1295.688802][ T9761] 
[ 1295.689180][ T9761] 
[ 1295.689180][ T9761] rcu_scheduler_active = 2, debug_locks = 1
[ 1295.689438][ T9761] no locks held by smcrouted/9761.
[ 1295.689612][ T9761] 
[ 1295.689612][ T9761] stack backtrace:
[ 1295.689877][ T9761] CPU: 2 UID: 0 PID: 9761 Comm: smcrouted Not tainted 6.12.0-rc7-virtme #1
[ 1295.690307][ T9761] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 1295.691164][ T9761] Call Trace:
[ 1295.691367][ T9761]  <TASK>
[ 1295.691510][ T9761]  dump_stack_lvl+0xb0/0xd0
[ 1295.691777][ T9761]  lockdep_rcu_suspicious+0x1ea/0x280
[ 1295.692031][ T9761]  ip6mr_get_table+0x142/0x190
[ 1295.692206][ T9761]  ip6_mroute_setsockopt+0x185/0x12d0
[ 1295.692375][ T9761]  ? __pfx_ip6_mroute_setsockopt+0x10/0x10
[ 1295.692578][ T9761]  ? __lock_release+0x103/0x460
[ 1295.692760][ T9761]  ? __might_fault+0x11b/0x170
[ 1295.692953][ T9761]  ? trace_lock_acquire+0x14d/0x1f0
[ 1295.693129][ T9761]  ? __might_fault+0xc3/0x170
[ 1295.693284][ T9761]  ? lock_acquire+0x32/0xc0
[ 1295.693460][ T9761]  ? __might_fault+0xc3/0x170
[ 1295.693631][ T9761]  ? __might_fault+0x11b/0x170
[ 1295.693799][ T9761]  do_ipv6_setsockopt+0x705/0x34e0
[ 1295.693979][ T9761]  ? __lock_release+0x10/0x460
[ 1295.694165][ T9761]  ? __pfx_do_ipv6_setsockopt+0x10/0x10
[ 1295.694328][ T9761]  ? __pfx_lock_acquire.part.0+0x10/0x10
[ 1295.694489][ T9761]  ? rcu_read_lock_any_held+0x43/0xb0
[ 1295.694645][ T9761]  ? validate_chain+0x1fe/0xae0
[ 1295.694801][ T9761]  ? is_bpf_text_address+0x67/0x120
[ 1295.694976][ T9761]  ? __pfx_validate_chain+0x10/0x10
[ 1295.695156][ T9761]  ? hlock_class+0x4e/0x130
[ 1295.695316][ T9761]  ? mark_lock+0x38/0x3e0
[ 1295.695440][ T9761]  ? rcu_read_lock_any_held+0x43/0xb0
[ 1295.695609][ T9761]  ? rcu_read_lock_any_held+0x43/0xb0
[ 1295.695769][ T9761]  ? validate_chain+0x1fe/0xae0
[ 1295.695934][ T9761]  ? __pfx_validate_chain+0x10/0x10
[ 1295.696146][ T9761]  ? hlock_class+0x4e/0x130
[ 1295.696320][ T9761]  ? ipv6_setsockopt+0x7f/0xe0
[ 1295.696486][ T9761]  ipv6_setsockopt+0x7f/0xe0
[ 1295.696656][ T9761]  rawv6_setsockopt+0xb7/0x550
[ 1295.696822][ T9761]  ? __pfx_rawv6_setsockopt+0x10/0x10
[ 1295.697018][ T9761]  ? kfree+0x2d/0x340
[ 1295.697198][ T9761]  do_sock_setsockopt+0x149/0x3a0
[ 1295.697378][ T9761]  ? __pfx_do_sock_setsockopt+0x10/0x10
[ 1295.697547][ T9761]  ? __pfx___lock_release+0x10/0x10
[ 1295.697718][ T9761]  ? __might_fault+0xc3/0x170
[ 1295.697905][ T9761]  ? __might_fault+0xc3/0x170
[ 1295.698085][ T9761]  ? lock_acquire+0x32/0xc0
[ 1295.698279][ T9761]  ? fdget+0x52/0x1e0
[ 1295.698480][ T9761]  __sys_setsockopt+0x104/0x1a0
[ 1295.698718][ T9761]  ? __pfx___sys_setsockopt+0x10/0x10
[ 1295.698924][ T9761]  ? __pfx___sys_socket+0x10/0x10
[ 1295.699178][ T9761]  ? do_user_addr_fault+0x374/0xe30
[ 1295.699444][ T9761]  __x64_sys_setsockopt+0xbd/0x160
[ 1295.699711][ T9761]  ? lockdep_hardirqs_on_prepare+0x275/0x410
[ 1295.700051][ T9761]  do_syscall_64+0xc1/0x1d0
[ 1295.700323][ T9761]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 1295.700657][ T9761] RIP: 0033:0x7f37eeedb91e
[ 1295.700933][ T9761] 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
[ 1295.701832][ T9761] RSP: 002b:00007fffe3a1b448 EFLAGS: 00000246 ORIG_RAX: 0000000000000036
[ 1295.702219][ T9761] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f37eeedb91e
[ 1295.702590][ T9761] RDX: 00000000000000c8 RSI: 0000000000000029 RDI: 0000000000000008
[ 1295.702960][ T9761] RBP: 0000000000000008 R08: 0000000000000004 R09: 0000000000000000
[ 1295.703329][ T9761] R10: 00007fffe3a1b46c R11: 0000000000000246 R12: 0000000000000000
[ 1295.703716][ T9761] R13: 0000000000402650 R14: 0000000000411dd8 R15: 00007f37eefe0000
[ 1295.704110][ T9761]  </TASK>
[ 1295.708613][ T9761] veth0: entered allmulticast mode
[ 1295.709583][ T9761] veth1: entered allmulticast mode
[ 1295.710223][ T9761] veth2: entered allmulticast mode
[ 1295.710808][ T9761] veth3: entered allmulticast mode
[ 1315.126462][ T9761] veth0: left allmulticast mode
[ 1315.126988][ T9761] veth1: left allmulticast mode
[ 1315.127433][ T9761] veth2: left allmulticast mode
[ 1315.127849][ T9761] veth3: left allmulticast mode