[ 1305.859509][ T4313] 
[ 1305.859705][ T4313] =============================
[ 1305.859892][ T4313] WARNING: suspicious RCU usage
[ 1305.860073][ T4313] 6.12.0-rc6-virtme #1 Not tainted
[ 1305.860330][ T4313] -----------------------------
[ 1305.860517][ T4313] net/ipv6/ip6mr.c:132 RCU-list traversed in non-reader section!!
[ 1305.860760][ T4313] 
[ 1305.860760][ T4313] other info that might help us debug this:
[ 1305.860760][ T4313] 
[ 1305.861099][ T4313] 
[ 1305.861099][ T4313] rcu_scheduler_active = 2, debug_locks = 1
[ 1305.861373][ T4313] no locks held by smcrouted/4313.
[ 1305.861558][ T4313] 
[ 1305.861558][ T4313] stack backtrace:
[ 1305.861792][ T4313] CPU: 2 UID: 0 PID: 4313 Comm: smcrouted Not tainted 6.12.0-rc6-virtme #1
[ 1305.862101][ T4313] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 1305.862308][ T4313] Call Trace:
[ 1305.862433][ T4313]  <TASK>
[ 1305.862524][ T4313]  dump_stack_lvl+0xb0/0xd0
[ 1305.862709][ T4313]  lockdep_rcu_suspicious+0x1ea/0x280
[ 1305.862872][ T4313]  ip6mr_get_table+0x142/0x190
[ 1305.863050][ T4313]  ip6_mroute_setsockopt+0x185/0x12d0
[ 1305.863228][ T4313]  ? __pfx_ip6_mroute_setsockopt+0x10/0x10
[ 1305.863445][ T4313]  ? __lock_release+0x103/0x460
[ 1305.863605][ T4313]  ? __might_fault+0x11b/0x170
[ 1305.863765][ T4313]  ? trace_lock_acquire+0x14d/0x1f0
[ 1305.863942][ T4313]  ? __might_fault+0xc3/0x170
[ 1305.864114][ T4313]  ? lock_acquire+0x32/0xc0
[ 1305.864279][ T4313]  ? __might_fault+0xc3/0x170
[ 1305.864460][ T4313]  ? __might_fault+0x11b/0x170
[ 1305.864625][ T4313]  do_ipv6_setsockopt+0x705/0x34e0
[ 1305.864783][ T4313]  ? __lock_release+0xe0/0x460
[ 1305.864955][ T4313]  ? __pfx_do_ipv6_setsockopt+0x10/0x10
[ 1305.865121][ T4313]  ? __pfx_lock_acquire.part.0+0x10/0x10
[ 1305.865296][ T4313]  ? rcu_read_lock_any_held+0x43/0xb0
[ 1305.865467][ T4313]  ? validate_chain+0x1fe/0xae0
[ 1305.865636][ T4313]  ? is_bpf_text_address+0x67/0x120
[ 1305.865816][ T4313]  ? __pfx_validate_chain+0x10/0x10
[ 1305.865992][ T4313]  ? hlock_class+0x4e/0x130
[ 1305.866167][ T4313]  ? mark_lock+0x38/0x3e0
[ 1305.866306][ T4313]  ? __lock_acquire+0xb3f/0x1580
[ 1305.866491][ T4313]  ? find_held_lock+0x2c/0x110
[ 1305.866659][ T4313]  ? ipv6_setsockopt+0x7f/0xe0
[ 1305.866827][ T4313]  ipv6_setsockopt+0x7f/0xe0
[ 1305.866992][ T4313]  rawv6_setsockopt+0xb7/0x550
[ 1305.867164][ T4313]  ? __pfx_rawv6_setsockopt+0x10/0x10
[ 1305.867338][ T4313]  ? __lock_acquire+0xb3f/0x1580
[ 1305.867513][ T4313]  ? kfree+0x2d/0x340
[ 1305.867651][ T4313]  do_sock_setsockopt+0x149/0x3a0
[ 1305.867828][ T4313]  ? __pfx_do_sock_setsockopt+0x10/0x10
[ 1305.867994][ T4313]  ? __lock_release+0x103/0x460
[ 1305.868164][ T4313]  ? fd_install+0x1d1/0x5a0
[ 1305.868344][ T4313]  ? trace_lock_acquire+0x14d/0x1f0
[ 1305.868524][ T4313]  ? fdget+0x52/0x1e0
[ 1305.868663][ T4313]  __sys_setsockopt+0x104/0x1a0
[ 1305.868841][ T4313]  ? __pfx___sys_setsockopt+0x10/0x10
[ 1305.869005][ T4313]  ? __sys_socket+0x168/0x1e0
[ 1305.869161][ T4313]  ? __pfx___sys_socket+0x10/0x10
[ 1305.869322][ T4313]  ? do_user_addr_fault+0x374/0xe30
[ 1305.869483][ T4313]  __x64_sys_setsockopt+0xbd/0x160
[ 1305.869655][ T4313]  ? lockdep_hardirqs_on_prepare+0x275/0x410
[ 1305.869884][ T4313]  do_syscall_64+0xc1/0x1d0
[ 1305.870065][ T4313]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 1305.870260][ T4313] RIP: 0033:0x7f8d703b991e
[ 1305.870442][ T4313] 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
[ 1305.871034][ T4313] RSP: 002b:00007ffc45e34bd8 EFLAGS: 00000246 ORIG_RAX: 0000000000000036
[ 1305.871303][ T4313] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f8d703b991e
[ 1305.871552][ T4313] RDX: 00000000000000c8 RSI: 0000000000000029 RDI: 0000000000000008
[ 1305.871784][ T4313] RBP: 0000000000000008 R08: 0000000000000004 R09: 00000000195e3010
[ 1305.872026][ T4313] R10: 00007ffc45e34bfc R11: 0000000000000246 R12: 0000000000000000
[ 1305.872263][ T4313] R13: 0000000000402650 R14: 0000000000411dd8 R15: 00007f8d704be000
[ 1305.872534][ T4313]  </TASK>
[ 1305.876626][ T4313] veth0: entered allmulticast mode
[ 1305.877221][ T4313] veth1: entered allmulticast mode
[ 1305.877587][ T4313] veth2: entered allmulticast mode
[ 1305.877933][ T4313] veth3: entered allmulticast mode
[ 1305.880081][ T4313] veth4: entered allmulticast mode
[ 1305.880471][ T4313] veth5: entered allmulticast mode
[ 1317.123462][ T4401] GACT probability NOT on
[ 1317.155342][ T4399] tc (4399) used greatest stack depth: 23384 bytes left
[ 1333.837940][ T4313] veth0: left allmulticast mode
[ 1333.838296][ T4313] veth1: left allmulticast mode
[ 1333.838599][ T4313] veth2: left allmulticast mode
[ 1333.838897][ T4313] veth3: left allmulticast mode
[ 1333.839213][ T4313] veth4: left allmulticast mode
[ 1333.839459][ T4313] veth5: left allmulticast mode