[ 1313.039378][ T7893] 
[ 1313.039558][ T7893] =============================
[ 1313.039747][ T7893] WARNING: suspicious RCU usage
[ 1313.039942][ T7893] 6.12.0-rc6-virtme #1 Not tainted
[ 1313.040151][ T7893] -----------------------------
[ 1313.040368][ T7893] net/ipv6/ip6mr.c:132 RCU-list traversed in non-reader section!!
[ 1313.040642][ T7893] 
[ 1313.040642][ T7893] other info that might help us debug this:
[ 1313.040642][ T7893] 
[ 1313.041130][ T7893] 
[ 1313.041130][ T7893] rcu_scheduler_active = 2, debug_locks = 1
[ 1313.041388][ T7893] no locks held by smcrouted/7893.
[ 1313.041564][ T7893] 
[ 1313.041564][ T7893] stack backtrace:
[ 1313.041786][ T7893] CPU: 3 UID: 0 PID: 7893 Comm: smcrouted Not tainted 6.12.0-rc6-virtme #1
[ 1313.042111][ T7893] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 1313.042355][ T7893] Call Trace:
[ 1313.042492][ T7893]  <TASK>
[ 1313.042594][ T7893]  dump_stack_lvl+0xb0/0xd0
[ 1313.042795][ T7893]  lockdep_rcu_suspicious+0x1ea/0x280
[ 1313.043017][ T7893]  ip6mr_get_table+0x142/0x190
[ 1313.043201][ T7893]  ip6_mroute_setsockopt+0x185/0x12d0
[ 1313.043378][ T7893]  ? __pfx_ip6_mroute_setsockopt+0x10/0x10
[ 1313.043610][ T7893]  ? __lock_release+0x103/0x460
[ 1313.043793][ T7893]  ? __might_fault+0x11b/0x170
[ 1313.043976][ T7893]  ? trace_lock_acquire+0x14d/0x1f0
[ 1313.044166][ T7893]  ? __might_fault+0xc3/0x170
[ 1313.044340][ T7893]  ? lock_acquire+0x32/0xc0
[ 1313.044513][ T7893]  ? __might_fault+0xc3/0x170
[ 1313.044701][ T7893]  ? __might_fault+0x11b/0x170
[ 1313.044886][ T7893]  do_ipv6_setsockopt+0x705/0x34e0
[ 1313.045063][ T7893]  ? __lock_release+0xe0/0x460
[ 1313.045240][ T7893]  ? __pfx_do_ipv6_setsockopt+0x10/0x10
[ 1313.045416][ T7893]  ? __pfx_lock_acquire.part.0+0x10/0x10
[ 1313.045591][ T7893]  ? rcu_read_lock_any_held+0x43/0xb0
[ 1313.045767][ T7893]  ? validate_chain+0x1fe/0xae0
[ 1313.045939][ T7893]  ? is_bpf_text_address+0x67/0x120
[ 1313.046132][ T7893]  ? __pfx_validate_chain+0x10/0x10
[ 1313.046304][ T7893]  ? hlock_class+0x4e/0x130
[ 1313.046484][ T7893]  ? mark_lock+0x38/0x3e0
[ 1313.046632][ T7893]  ? __lock_acquire+0xb3f/0x1580
[ 1313.046845][ T7893]  ? find_held_lock+0x2c/0x110
[ 1313.047034][ T7893]  ? ipv6_setsockopt+0x7f/0xe0
[ 1313.047210][ T7893]  ipv6_setsockopt+0x7f/0xe0
[ 1313.047396][ T7893]  rawv6_setsockopt+0xb7/0x550
[ 1313.047571][ T7893]  ? __pfx_rawv6_setsockopt+0x10/0x10
[ 1313.047755][ T7893]  ? __lock_acquire+0xb3f/0x1580
[ 1313.047931][ T7893]  ? kfree+0x2d/0x340
[ 1313.048073][ T7893]  do_sock_setsockopt+0x149/0x3a0
[ 1313.048252][ T7893]  ? __pfx_do_sock_setsockopt+0x10/0x10
[ 1313.048437][ T7893]  ? __lock_release+0x103/0x460
[ 1313.048666][ T7893]  ? fd_install+0x1d1/0x5a0
[ 1313.048948][ T7893]  ? trace_lock_acquire+0x14d/0x1f0
[ 1313.049203][ T7893]  ? fdget+0x52/0x1e0
[ 1313.049369][ T7893]  __sys_setsockopt+0x104/0x1a0
[ 1313.049651][ T7893]  ? __pfx___sys_setsockopt+0x10/0x10
[ 1313.049914][ T7893]  ? __sys_socket+0x168/0x1e0
[ 1313.050136][ T7893]  ? __pfx___sys_socket+0x10/0x10
[ 1313.050420][ T7893]  ? do_user_addr_fault+0x374/0xe30
[ 1313.050704][ T7893]  __x64_sys_setsockopt+0xbd/0x160
[ 1313.050975][ T7893]  ? lockdep_hardirqs_on_prepare+0x275/0x410
[ 1313.051324][ T7893]  do_syscall_64+0xc1/0x1d0
[ 1313.051597][ T7893]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 1313.051915][ T7893] RIP: 0033:0x7f691bcaf91e
[ 1313.052197][ T7893] 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
[ 1313.053130][ T7893] RSP: 002b:00007ffc8e06ba28 EFLAGS: 00000246 ORIG_RAX: 0000000000000036
[ 1313.053549][ T7893] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f691bcaf91e
[ 1313.053941][ T7893] RDX: 00000000000000c8 RSI: 0000000000000029 RDI: 0000000000000008
[ 1313.054342][ T7893] RBP: 0000000000000008 R08: 0000000000000004 R09: 0000000000000000
[ 1313.054770][ T7893] R10: 00007ffc8e06ba4c R11: 0000000000000246 R12: 0000000000000000
[ 1313.055178][ T7893] R13: 0000000000402650 R14: 0000000000411dd8 R15: 00007f691bdb4000
[ 1313.055614][ T7893]  </TASK>
[ 1313.061225][ T7893] veth0: entered allmulticast mode
[ 1313.062171][ T7893] veth1: entered allmulticast mode
[ 1313.062721][ T7893] veth2: entered allmulticast mode
[ 1313.063312][ T7893] veth3: entered allmulticast mode
[ 1331.765243][ T7893] veth0: left allmulticast mode
[ 1331.765588][ T7893] veth1: left allmulticast mode
[ 1331.765837][ T7893] veth2: left allmulticast mode
[ 1331.766098][ T7893] veth3: left allmulticast mode