[ 1283.755363][T16572] 
[ 1283.755556][T16572] =============================
[ 1283.755726][T16572] WARNING: suspicious RCU usage
[ 1283.755888][T16572] 6.12.0-rc6-virtme #1 Not tainted
[ 1283.756053][T16572] -----------------------------
[ 1283.756210][T16572] net/ipv6/ip6mr.c:132 RCU-list traversed in non-reader section!!
[ 1283.756476][T16572] 
[ 1283.756476][T16572] other info that might help us debug this:
[ 1283.756476][T16572] 
[ 1283.756781][T16572] 
[ 1283.756781][T16572] rcu_scheduler_active = 2, debug_locks = 1
[ 1283.757017][T16572] no locks held by smcrouted/16572.
[ 1283.757186][T16572] 
[ 1283.757186][T16572] stack backtrace:
[ 1283.757390][T16572] CPU: 3 UID: 0 PID: 16572 Comm: smcrouted Not tainted 6.12.0-rc6-virtme #1
[ 1283.757670][T16572] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 1283.757872][T16572] Call Trace:
[ 1283.758001][T16572]  <TASK>
[ 1283.758092][T16572]  dump_stack_lvl+0xb0/0xd0
[ 1283.758270][T16572]  lockdep_rcu_suspicious+0x1ea/0x280
[ 1283.758437][T16572]  ip6mr_get_table+0x142/0x190
[ 1283.758611][T16572]  ip6_mroute_setsockopt+0x185/0x12d0
[ 1283.758787][T16572]  ? __pfx_ip6_mroute_setsockopt+0x10/0x10
[ 1283.758998][T16572]  ? __lock_release+0x103/0x460
[ 1283.759162][T16572]  ? __might_fault+0x11b/0x170
[ 1283.759329][T16572]  ? trace_lock_acquire+0x14d/0x1f0
[ 1283.759504][T16572]  ? __might_fault+0xc3/0x170
[ 1283.759670][T16572]  ? lock_acquire+0x32/0xc0
[ 1283.759831][T16572]  ? __might_fault+0xc3/0x170
[ 1283.759991][T16572]  ? __might_fault+0x11b/0x170
[ 1283.760162][T16572]  do_ipv6_setsockopt+0x705/0x34e0
[ 1283.760327][T16572]  ? __lock_release+0xe0/0x460
[ 1283.760494][T16572]  ? __pfx_do_ipv6_setsockopt+0x10/0x10
[ 1283.760651][T16572]  ? __pfx_lock_acquire.part.0+0x10/0x10
[ 1283.760819][T16572]  ? rcu_read_lock_any_held+0x43/0xb0
[ 1283.760988][T16572]  ? validate_chain+0x1fe/0xae0
[ 1283.761153][T16572]  ? is_bpf_text_address+0x67/0x120
[ 1283.761325][T16572]  ? __pfx_validate_chain+0x10/0x10
[ 1283.761485][T16572]  ? hlock_class+0x4e/0x130
[ 1283.761649][T16572]  ? mark_lock+0x38/0x3e0
[ 1283.761779][T16572]  ? __lock_acquire+0xb3f/0x1580
[ 1283.761949][T16572]  ? find_held_lock+0x2c/0x110
[ 1283.762125][T16572]  ? ipv6_setsockopt+0x7f/0xe0
[ 1283.762288][T16572]  ipv6_setsockopt+0x7f/0xe0
[ 1283.762451][T16572]  rawv6_setsockopt+0xb7/0x550
[ 1283.762616][T16572]  ? __pfx_rawv6_setsockopt+0x10/0x10
[ 1283.762776][T16572]  ? __lock_acquire+0xb3f/0x1580
[ 1283.762942][T16572]  ? kfree+0x2d/0x340
[ 1283.763232][T16572]  do_sock_setsockopt+0x149/0x3a0
[ 1283.763395][T16572]  ? __pfx_do_sock_setsockopt+0x10/0x10
[ 1283.763558][T16572]  ? __lock_release+0x103/0x460
[ 1283.763718][T16572]  ? fd_install+0x1d1/0x5a0
[ 1283.763888][T16572]  ? trace_lock_acquire+0x14d/0x1f0
[ 1283.764055][T16572]  ? fdget+0x52/0x1e0
[ 1283.764185][T16572]  __sys_setsockopt+0x104/0x1a0
[ 1283.764351][T16572]  ? __pfx___sys_setsockopt+0x10/0x10
[ 1283.764519][T16572]  ? __sys_socket+0x168/0x1e0
[ 1283.764683][T16572]  ? __pfx___sys_socket+0x10/0x10
[ 1283.764845][T16572]  ? do_user_addr_fault+0x374/0xe30
[ 1283.765011][T16572]  __x64_sys_setsockopt+0xbd/0x160
[ 1283.765169][T16572]  ? lockdep_hardirqs_on_prepare+0x275/0x410
[ 1283.765369][T16572]  do_syscall_64+0xc1/0x1d0
[ 1283.765545][T16572]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 1283.765745][T16572] RIP: 0033:0x7fafac20691e
[ 1283.765925][T16572] 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
[ 1283.766484][T16572] RSP: 002b:00007ffe638ad068 EFLAGS: 00000246 ORIG_RAX: 0000000000000036
[ 1283.766732][T16572] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fafac20691e
[ 1283.766973][T16572] RDX: 00000000000000c8 RSI: 0000000000000029 RDI: 0000000000000008
[ 1283.767215][T16572] RBP: 0000000000000008 R08: 0000000000000004 R09: 0000000000000000
[ 1283.767455][T16572] R10: 00007ffe638ad08c R11: 0000000000000246 R12: 0000000000000000
[ 1283.767700][T16572] R13: 0000000000402650 R14: 0000000000411dd8 R15: 00007fafac30b000
[ 1283.767951][T16572]  </TASK>
[ 1283.770344][T16572] veth0: entered allmulticast mode
[ 1283.770874][T16572] veth1: entered allmulticast mode
[ 1283.771233][T16572] veth2: entered allmulticast mode
[ 1283.771569][T16572] veth3: entered allmulticast mode
[ 1302.699988][T16572] veth0: left allmulticast mode
[ 1302.700345][T16572] veth1: left allmulticast mode
[ 1302.700631][T16572] veth2: left allmulticast mode
[ 1302.700907][T16572] veth3: left allmulticast mode