[ 1315.183740][T17626] 
[ 1315.183939][T17626] =============================
[ 1315.184157][T17626] WARNING: suspicious RCU usage
[ 1315.184397][T17626] 6.12.0-rc7-virtme #1 Not tainted
[ 1315.184623][T17626] -----------------------------
[ 1315.184893][T17626] net/ipv6/ip6mr.c:132 RCU-list traversed in non-reader section!!
[ 1315.185294][T17626] 
[ 1315.185294][T17626] other info that might help us debug this:
[ 1315.185294][T17626] 
[ 1315.185830][T17626] 
[ 1315.185830][T17626] rcu_scheduler_active = 2, debug_locks = 1
[ 1315.186229][T17626] no locks held by smcrouted/17626.
[ 1315.186523][T17626] 
[ 1315.186523][T17626] stack backtrace:
[ 1315.186859][T17626] CPU: 2 UID: 0 PID: 17626 Comm: smcrouted Not tainted 6.12.0-rc7-virtme #1
[ 1315.187307][T17626] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 1315.187627][T17626] Call Trace:
[ 1315.187825][T17626]  <TASK>
[ 1315.187968][T17626]  dump_stack_lvl+0xb0/0xd0
[ 1315.188244][T17626]  lockdep_rcu_suspicious+0x1ea/0x280
[ 1315.188507][T17626]  ip6mr_get_table+0x142/0x190
[ 1315.188791][T17626]  ip6_mroute_setsockopt+0x185/0x12d0
[ 1315.189055][T17626]  ? __pfx_ip6_mroute_setsockopt+0x10/0x10
[ 1315.189386][T17626]  ? __lock_release+0x103/0x460
[ 1315.189642][T17626]  ? __might_fault+0x11b/0x170
[ 1315.189900][T17626]  ? trace_lock_acquire+0x14d/0x1f0
[ 1315.190107][T17626]  ? __might_fault+0xc3/0x170
[ 1315.190309][T17626]  ? lock_acquire+0x32/0xc0
[ 1315.190499][T17626]  ? __might_fault+0xc3/0x170
[ 1315.190659][T17626]  ? __might_fault+0x11b/0x170
[ 1315.190822][T17626]  do_ipv6_setsockopt+0x705/0x34e0
[ 1315.190985][T17626]  ? __lock_release+0x10/0x460
[ 1315.191163][T17626]  ? __pfx_do_ipv6_setsockopt+0x10/0x10
[ 1315.191357][T17626]  ? __pfx_lock_acquire.part.0+0x10/0x10
[ 1315.191577][T17626]  ? rcu_read_lock_any_held+0x43/0xb0
[ 1315.191734][T17626]  ? validate_chain+0x1fe/0xae0
[ 1315.191948][T17626]  ? is_bpf_text_address+0x67/0x120
[ 1315.192164][T17626]  ? __pfx_validate_chain+0x10/0x10
[ 1315.192361][T17626]  ? hlock_class+0x4e/0x130
[ 1315.192581][T17626]  ? mark_lock+0x38/0x3e0
[ 1315.192706][T17626]  ? __lock_acquire+0xb3f/0x1580
[ 1315.192869][T17626]  ? find_held_lock+0x2c/0x110
[ 1315.193065][T17626]  ? ipv6_setsockopt+0x7f/0xe0
[ 1315.193241][T17626]  ipv6_setsockopt+0x7f/0xe0
[ 1315.193415][T17626]  rawv6_setsockopt+0xb7/0x550
[ 1315.193587][T17626]  ? __pfx_rawv6_setsockopt+0x10/0x10
[ 1315.193740][T17626]  ? __lock_acquire+0xb3f/0x1580
[ 1315.193931][T17626]  ? kfree+0x2d/0x340
[ 1315.194102][T17626]  do_sock_setsockopt+0x149/0x3a0
[ 1315.194312][T17626]  ? __pfx_do_sock_setsockopt+0x10/0x10
[ 1315.194492][T17626]  ? __lock_release+0x103/0x460
[ 1315.194702][T17626]  ? fd_install+0x1d1/0x5a0
[ 1315.194952][T17626]  ? trace_lock_acquire+0x14d/0x1f0
[ 1315.195185][T17626]  ? fdget+0x52/0x1e0
[ 1315.195386][T17626]  __sys_setsockopt+0x104/0x1a0
[ 1315.195645][T17626]  ? __pfx___sys_setsockopt+0x10/0x10
[ 1315.195882][T17626]  ? __sys_socket+0x168/0x1e0
[ 1315.196041][T17626]  ? __pfx___sys_socket+0x10/0x10
[ 1315.196201][T17626]  ? do_user_addr_fault+0x374/0xe30
[ 1315.196369][T17626]  __x64_sys_setsockopt+0xbd/0x160
[ 1315.196585][T17626]  ? lockdep_hardirqs_on_prepare+0x275/0x410
[ 1315.196840][T17626]  do_syscall_64+0xc1/0x1d0
[ 1315.197012][T17626]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 1315.197279][T17626] RIP: 0033:0x7fd5c09d491e
[ 1315.197495][T17626] 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
[ 1315.198141][T17626] RSP: 002b:00007ffcac2b3b88 EFLAGS: 00000246 ORIG_RAX: 0000000000000036
[ 1315.198394][T17626] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fd5c09d491e
[ 1315.198699][T17626] RDX: 00000000000000c8 RSI: 0000000000000029 RDI: 0000000000000008
[ 1315.199028][T17626] RBP: 0000000000000008 R08: 0000000000000004 R09: 0000000000000000
[ 1315.199377][T17626] R10: 00007ffcac2b3bac R11: 0000000000000246 R12: 0000000000000000
[ 1315.199739][T17626] R13: 0000000000402650 R14: 0000000000411dd8 R15: 00007fd5c0ad9000
[ 1315.200002][T17626]  </TASK>
[ 1315.203430][T17626] veth0: entered allmulticast mode
[ 1315.205165][T17626] veth1: entered allmulticast mode
[ 1315.208353][T17626] veth2: entered allmulticast mode
[ 1315.209684][T17626] veth3: entered allmulticast mode
[ 1315.216008][T17626] veth4: entered allmulticast mode
[ 1315.216461][T17626] veth5: entered allmulticast mode
[ 1340.320928][T17626] veth0: left allmulticast mode
[ 1340.321292][T17626] veth1: left allmulticast mode
[ 1340.321530][T17626] veth2: left allmulticast mode
[ 1340.321971][T17626] veth3: left allmulticast mode
[ 1340.322196][T17626] veth4: left allmulticast mode
[ 1340.322428][T17626] veth5: left allmulticast mode