[ 1282.923952][T15281] 
[ 1282.924125][T15281] =============================
[ 1282.924324][T15281] WARNING: suspicious RCU usage
[ 1282.924536][T15281] 6.12.0-rc7-virtme #1 Not tainted
[ 1282.925221][T15281] -----------------------------
[ 1282.925438][T15281] net/ipv6/ip6mr.c:132 RCU-list traversed in non-reader section!!
[ 1282.925725][T15281] 
[ 1282.925725][T15281] other info that might help us debug this:
[ 1282.925725][T15281] 
[ 1282.926101][T15281] 
[ 1282.926101][T15281] rcu_scheduler_active = 2, debug_locks = 1
[ 1282.926376][T15281] no locks held by smcrouted/15281.
[ 1282.926586][T15281] 
[ 1282.926586][T15281] stack backtrace:
[ 1282.926852][T15281] CPU: 0 UID: 0 PID: 15281 Comm: smcrouted Not tainted 6.12.0-rc7-virtme #1
[ 1282.927189][T15281] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 1282.927440][T15281] Call Trace:
[ 1282.927577][T15281]  <TASK>
[ 1282.927680][T15281]  dump_stack_lvl+0xb0/0xd0
[ 1282.927878][T15281]  lockdep_rcu_suspicious+0x1ea/0x280
[ 1282.928068][T15281]  ip6mr_get_table+0x142/0x190
[ 1282.928260][T15281]  ip6_mroute_setsockopt+0x185/0x12d0
[ 1282.928457][T15281]  ? __pfx_ip6_mroute_setsockopt+0x10/0x10
[ 1282.928697][T15281]  ? __lock_release+0x103/0x460
[ 1282.928894][T15281]  ? __might_fault+0x11b/0x170
[ 1282.929085][T15281]  ? trace_lock_acquire+0x14d/0x1f0
[ 1282.929308][T15281]  ? __might_fault+0xc3/0x170
[ 1282.929492][T15281]  ? lock_acquire+0x32/0xc0
[ 1282.929669][T15281]  ? __might_fault+0xc3/0x170
[ 1282.929853][T15281]  ? __might_fault+0x11b/0x170
[ 1282.930044][T15281]  do_ipv6_setsockopt+0x705/0x34e0
[ 1282.930232][T15281]  ? __lock_release+0x40/0x460
[ 1282.930413][T15281]  ? __pfx_do_ipv6_setsockopt+0x10/0x10
[ 1282.930596][T15281]  ? __pfx_lock_acquire.part.0+0x10/0x10
[ 1282.930776][T15281]  ? rcu_read_lock_any_held+0x43/0xb0
[ 1282.930957][T15281]  ? validate_chain+0x1fe/0xae0
[ 1282.931131][T15281]  ? is_bpf_text_address+0x67/0x120
[ 1282.931309][T15281]  ? __pfx_validate_chain+0x10/0x10
[ 1282.931499][T15281]  ? hlock_class+0x4e/0x130
[ 1282.931691][T15281]  ? mark_lock+0x38/0x3e0
[ 1282.931850][T15281]  ? __lock_acquire+0xb3f/0x1580
[ 1282.932062][T15281]  ? find_held_lock+0x2c/0x110
[ 1282.932260][T15281]  ? ipv6_setsockopt+0x7f/0xe0
[ 1282.932450][T15281]  ipv6_setsockopt+0x7f/0xe0
[ 1282.932641][T15281]  rawv6_setsockopt+0xb7/0x550
[ 1282.932847][T15281]  ? __pfx_rawv6_setsockopt+0x10/0x10
[ 1282.933042][T15281]  ? __lock_acquire+0xb3f/0x1580
[ 1282.933237][T15281]  ? kfree+0x2d/0x340
[ 1282.933381][T15281]  do_sock_setsockopt+0x149/0x3a0
[ 1282.933572][T15281]  ? __pfx_do_sock_setsockopt+0x10/0x10
[ 1282.933762][T15281]  ? __lock_release+0x103/0x460
[ 1282.933962][T15281]  ? fd_install+0x1d1/0x5a0
[ 1282.934153][T15281]  ? trace_lock_acquire+0x14d/0x1f0
[ 1282.934342][T15281]  ? fdget+0x52/0x1e0
[ 1282.934495][T15281]  __sys_setsockopt+0x104/0x1a0
[ 1282.934690][T15281]  ? __pfx___sys_setsockopt+0x10/0x10
[ 1282.934874][T15281]  ? __sys_socket+0x168/0x1e0
[ 1282.935074][T15281]  ? __pfx___sys_socket+0x10/0x10
[ 1282.935261][T15281]  ? do_user_addr_fault+0x374/0xe30
[ 1282.935467][T15281]  __x64_sys_setsockopt+0xbd/0x160
[ 1282.935653][T15281]  ? lockdep_hardirqs_on_prepare+0x275/0x410
[ 1282.935890][T15281]  do_syscall_64+0xc1/0x1d0
[ 1282.936088][T15281]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 1282.936334][T15281] RIP: 0033:0x7f866116a91e
[ 1282.936528][T15281] 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
[ 1282.937173][T15281] RSP: 002b:00007ffcee7b0c48 EFLAGS: 00000246 ORIG_RAX: 0000000000000036
[ 1282.937452][T15281] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f866116a91e
[ 1282.937721][T15281] RDX: 00000000000000c8 RSI: 0000000000000029 RDI: 0000000000000008
[ 1282.937989][T15281] RBP: 0000000000000008 R08: 0000000000000004 R09: 0000000000000000
[ 1282.938280][T15281] R10: 00007ffcee7b0c6c R11: 0000000000000246 R12: 0000000000000000
[ 1282.938565][T15281] R13: 0000000000402650 R14: 0000000000411dd8 R15: 00007f866126f000
[ 1282.938845][T15281]  </TASK>
[ 1282.952316][T15281] veth0: entered allmulticast mode
[ 1282.953138][T15281] veth1: entered allmulticast mode
[ 1282.953621][T15281] veth2: entered allmulticast mode
[ 1282.954049][T15281] veth3: entered allmulticast mode
[ 1301.717055][T15281] veth0: left allmulticast mode
[ 1301.717417][T15281] veth1: left allmulticast mode
[ 1301.717713][T15281] veth2: left allmulticast mode
[ 1301.717966][T15281] veth3: left allmulticast mode