[ 1258.941723][ T4457] 
[ 1258.942352][ T4457] =============================
[ 1258.942546][ T4457] WARNING: suspicious RCU usage
[ 1258.942736][ T4457] 6.12.0-rc7-virtme #1 Not tainted
[ 1258.942925][ T4457] -----------------------------
[ 1258.943110][ T4457] net/ipv6/ip6mr.c:132 RCU-list traversed in non-reader section!!
[ 1258.943389][ T4457] 
[ 1258.943389][ T4457] other info that might help us debug this:
[ 1258.943389][ T4457] 
[ 1258.943728][ T4457] 
[ 1258.943728][ T4457] rcu_scheduler_active = 2, debug_locks = 1
[ 1258.943990][ T4457] no locks held by smcrouted/4457.
[ 1258.944191][ T4457] 
[ 1258.944191][ T4457] stack backtrace:
[ 1258.944419][ T4457] CPU: 2 UID: 0 PID: 4457 Comm: smcrouted Not tainted 6.12.0-rc7-virtme #1
[ 1258.944723][ T4457] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 1258.944942][ T4457] Call Trace:
[ 1258.945077][ T4457]  <TASK>
[ 1258.945176][ T4457]  dump_stack_lvl+0xb0/0xd0
[ 1258.945357][ T4457]  lockdep_rcu_suspicious+0x1ea/0x280
[ 1258.945536][ T4457]  ip6mr_get_table+0x142/0x190
[ 1258.945710][ T4457]  ip6_mroute_setsockopt+0x185/0x12d0
[ 1258.945880][ T4457]  ? __pfx_ip6_mroute_setsockopt+0x10/0x10
[ 1258.946095][ T4457]  ? __lock_release+0x103/0x460
[ 1258.946266][ T4457]  ? __might_fault+0x11b/0x170
[ 1258.946438][ T4457]  ? trace_lock_acquire+0x14d/0x1f0
[ 1258.946621][ T4457]  ? __might_fault+0xc3/0x170
[ 1258.946786][ T4457]  ? lock_acquire+0x32/0xc0
[ 1258.946954][ T4457]  ? __might_fault+0xc3/0x170
[ 1258.947121][ T4457]  ? __might_fault+0x11b/0x170
[ 1258.947292][ T4457]  do_ipv6_setsockopt+0x705/0x34e0
[ 1258.947468][ T4457]  ? __lock_release+0x10/0x460
[ 1258.947638][ T4457]  ? __pfx_do_ipv6_setsockopt+0x10/0x10
[ 1258.947807][ T4457]  ? __pfx_lock_acquire.part.0+0x10/0x10
[ 1258.947979][ T4457]  ? rcu_read_lock_any_held+0x43/0xb0
[ 1258.948144][ T4457]  ? validate_chain+0x1fe/0xae0
[ 1258.948319][ T4457]  ? is_bpf_text_address+0x67/0x120
[ 1258.948497][ T4457]  ? __pfx_validate_chain+0x10/0x10
[ 1258.948671][ T4457]  ? hlock_class+0x4e/0x130
[ 1258.948836][ T4457]  ? mark_lock+0x38/0x3e0
[ 1258.948967][ T4457]  ? __lock_acquire+0xb3f/0x1580
[ 1258.949144][ T4457]  ? find_held_lock+0x2c/0x110
[ 1258.949316][ T4457]  ? ipv6_setsockopt+0x7f/0xe0
[ 1258.949484][ T4457]  ipv6_setsockopt+0x7f/0xe0
[ 1258.949651][ T4457]  rawv6_setsockopt+0xb7/0x550
[ 1258.949826][ T4457]  ? __pfx_rawv6_setsockopt+0x10/0x10
[ 1258.949992][ T4457]  ? __lock_acquire+0xb3f/0x1580
[ 1258.950177][ T4457]  ? kfree+0x2d/0x340
[ 1258.950314][ T4457]  do_sock_setsockopt+0x149/0x3a0
[ 1258.950486][ T4457]  ? __pfx_do_sock_setsockopt+0x10/0x10
[ 1258.950660][ T4457]  ? __lock_release+0x103/0x460
[ 1258.950824][ T4457]  ? fd_install+0x1d1/0x5a0
[ 1258.950996][ T4457]  ? trace_lock_acquire+0x14d/0x1f0
[ 1258.951167][ T4457]  ? fdget+0x52/0x1e0
[ 1258.951297][ T4457]  __sys_setsockopt+0x104/0x1a0
[ 1258.951461][ T4457]  ? __pfx___sys_setsockopt+0x10/0x10
[ 1258.951621][ T4457]  ? __sys_socket+0x168/0x1e0
[ 1258.951785][ T4457]  ? __pfx___sys_socket+0x10/0x10
[ 1258.951940][ T4457]  ? do_user_addr_fault+0x374/0xe30
[ 1258.952103][ T4457]  __x64_sys_setsockopt+0xbd/0x160
[ 1258.952258][ T4457]  ? lockdep_hardirqs_on_prepare+0x275/0x410
[ 1258.952458][ T4457]  do_syscall_64+0xc1/0x1d0
[ 1258.952632][ T4457]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 1258.952845][ T4457] RIP: 0033:0x7f064211291e
[ 1258.953017][ T4457] 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
[ 1258.953558][ T4457] RSP: 002b:00007ffd4cca54d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000036
[ 1258.953794][ T4457] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f064211291e
[ 1258.954030][ T4457] RDX: 00000000000000c8 RSI: 0000000000000029 RDI: 0000000000000008
[ 1258.954258][ T4457] RBP: 0000000000000008 R08: 0000000000000004 R09: 000000001383a010
[ 1258.954487][ T4457] R10: 00007ffd4cca54fc R11: 0000000000000246 R12: 0000000000000000
[ 1258.954716][ T4457] R13: 0000000000402650 R14: 0000000000411dd8 R15: 00007f0642217000
[ 1258.954955][ T4457]  </TASK>
[ 1258.957829][ T4457] veth0: entered allmulticast mode
[ 1258.958836][ T4457] veth1: entered allmulticast mode
[ 1258.959221][ T4457] veth2: entered allmulticast mode
[ 1258.959576][ T4457] veth3: entered allmulticast mode
[ 1258.959921][ T4457] veth4: entered allmulticast mode
[ 1258.960286][ T4457] veth5: entered allmulticast mode
[ 1269.534360][ T4543] GACT probability NOT on
[ 1285.509199][ T4457] veth0: left allmulticast mode
[ 1285.509545][ T4457] veth1: left allmulticast mode
[ 1285.509794][ T4457] veth2: left allmulticast mode
[ 1285.510046][ T4457] veth3: left allmulticast mode
[ 1285.510295][ T4457] veth4: left allmulticast mode
[ 1285.510530][ T4457] veth5: left allmulticast mode