[ 1315.796864][T15480] 
[ 1315.797020][T15480] =============================
[ 1315.797318][T15480] WARNING: suspicious RCU usage
[ 1315.797523][T15480] 6.12.0-rc7-virtme #1 Not tainted
[ 1315.797717][T15480] -----------------------------
[ 1315.797898][T15480] net/ipv6/ip6mr.c:132 RCU-list traversed in non-reader section!!
[ 1315.798186][T15480] 
[ 1315.798186][T15480] other info that might help us debug this:
[ 1315.798186][T15480] 
[ 1315.798561][T15480] 
[ 1315.798561][T15480] rcu_scheduler_active = 2, debug_locks = 1
[ 1315.798834][T15480] no locks held by smcrouted/15480.
[ 1315.799009][T15480] 
[ 1315.799009][T15480] stack backtrace:
[ 1315.799241][T15480] CPU: 2 UID: 0 PID: 15480 Comm: smcrouted Not tainted 6.12.0-rc7-virtme #1
[ 1315.799552][T15480] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 1315.799770][T15480] Call Trace:
[ 1315.799907][T15480]  <TASK>
[ 1315.800001][T15480]  dump_stack_lvl+0xb0/0xd0
[ 1315.800186][T15480]  lockdep_rcu_suspicious+0x1ea/0x280
[ 1315.800354][T15480]  ip6mr_get_table+0x142/0x190
[ 1315.800532][T15480]  ip6_mroute_setsockopt+0x185/0x12d0
[ 1315.800721][T15480]  ? __pfx_ip6_mroute_setsockopt+0x10/0x10
[ 1315.800955][T15480]  ? __lock_release+0x103/0x460
[ 1315.801129][T15480]  ? __might_fault+0x11b/0x170
[ 1315.801319][T15480]  ? trace_lock_acquire+0x14d/0x1f0
[ 1315.801512][T15480]  ? __might_fault+0xc3/0x170
[ 1315.801680][T15480]  ? lock_acquire+0x32/0xc0
[ 1315.801863][T15480]  ? __might_fault+0xc3/0x170
[ 1315.802053][T15480]  ? __might_fault+0x11b/0x170
[ 1315.802237][T15480]  do_ipv6_setsockopt+0x705/0x34e0
[ 1315.802424][T15480]  ? __lock_release+0x10/0x460
[ 1315.802595][T15480]  ? __pfx_do_ipv6_setsockopt+0x10/0x10
[ 1315.802770][T15480]  ? __pfx_lock_acquire.part.0+0x10/0x10
[ 1315.802962][T15480]  ? rcu_read_lock_any_held+0x43/0xb0
[ 1315.803146][T15480]  ? validate_chain+0x1fe/0xae0
[ 1315.803317][T15480]  ? is_bpf_text_address+0x67/0x120
[ 1315.803492][T15480]  ? __pfx_validate_chain+0x10/0x10
[ 1315.803658][T15480]  ? hlock_class+0x4e/0x130
[ 1315.803852][T15480]  ? mark_lock+0x38/0x3e0
[ 1315.803981][T15480]  ? __lock_acquire+0xb3f/0x1580
[ 1315.804161][T15480]  ? find_held_lock+0x2c/0x110
[ 1315.804346][T15480]  ? ipv6_setsockopt+0x7f/0xe0
[ 1315.804510][T15480]  ipv6_setsockopt+0x7f/0xe0
[ 1315.804688][T15480]  rawv6_setsockopt+0xb7/0x550
[ 1315.804862][T15480]  ? __pfx_rawv6_setsockopt+0x10/0x10
[ 1315.805027][T15480]  ? __lock_acquire+0xb3f/0x1580
[ 1315.805200][T15480]  ? kfree+0x2d/0x340
[ 1315.805341][T15480]  do_sock_setsockopt+0x149/0x3a0
[ 1315.805502][T15480]  ? __pfx_do_sock_setsockopt+0x10/0x10
[ 1315.805661][T15480]  ? __lock_release+0x103/0x460
[ 1315.805823][T15480]  ? fd_install+0x1d1/0x5a0
[ 1315.805991][T15480]  ? trace_lock_acquire+0x14d/0x1f0
[ 1315.806175][T15480]  ? fdget+0x52/0x1e0
[ 1315.806308][T15480]  __sys_setsockopt+0x104/0x1a0
[ 1315.806481][T15480]  ? __pfx___sys_setsockopt+0x10/0x10
[ 1315.806649][T15480]  ? __sys_socket+0x168/0x1e0
[ 1315.806838][T15480]  ? __pfx___sys_socket+0x10/0x10
[ 1315.807012][T15480]  ? do_user_addr_fault+0x374/0xe30
[ 1315.807177][T15480]  __x64_sys_setsockopt+0xbd/0x160
[ 1315.807330][T15480]  ? lockdep_hardirqs_on_prepare+0x275/0x410
[ 1315.807532][T15480]  do_syscall_64+0xc1/0x1d0
[ 1315.807692][T15480]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 1315.807898][T15480] RIP: 0033:0x7f245d1cb91e
[ 1315.808092][T15480] 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
[ 1315.808699][T15480] RSP: 002b:00007ffe88d70f48 EFLAGS: 00000246 ORIG_RAX: 0000000000000036
[ 1315.808967][T15480] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f245d1cb91e
[ 1315.809229][T15480] RDX: 00000000000000c8 RSI: 0000000000000029 RDI: 0000000000000008
[ 1315.809479][T15480] RBP: 0000000000000008 R08: 0000000000000004 R09: 0000000000000000
[ 1315.809738][T15480] R10: 00007ffe88d70f6c R11: 0000000000000246 R12: 0000000000000000
[ 1315.809975][T15480] R13: 0000000000402650 R14: 0000000000411dd8 R15: 00007f245d2d0000
[ 1315.810221][T15480]  </TASK>
[ 1315.813506][T15480] veth0: entered allmulticast mode
[ 1315.814112][T15480] veth1: entered allmulticast mode
[ 1315.814515][T15480] veth2: entered allmulticast mode
[ 1315.814883][T15480] veth3: entered allmulticast mode
[ 1315.815244][T15480] veth4: entered allmulticast mode
[ 1315.818051][T15480] veth5: entered allmulticast mode
[ 1342.011728][T15480] veth0: left allmulticast mode
[ 1342.012054][T15480] veth1: left allmulticast mode
[ 1342.012302][T15480] veth2: left allmulticast mode
[ 1342.012571][T15480] veth3: left allmulticast mode
[ 1342.012825][T15480] veth4: left allmulticast mode
[ 1342.013075][T15480] veth5: left allmulticast mode