[ 1256.867572][ T4455] 
[ 1256.867701][ T4455] =============================
[ 1256.867867][ T4455] WARNING: suspicious RCU usage
[ 1256.868022][ T4455] 6.12.0-rc6-virtme #1 Not tainted
[ 1256.868178][ T4455] -----------------------------
[ 1256.868341][ T4455] net/ipv6/ip6mr.c:132 RCU-list traversed in non-reader section!!
[ 1256.868568][ T4455] 
[ 1256.868568][ T4455] other info that might help us debug this:
[ 1256.868568][ T4455] 
[ 1256.868861][ T4455] 
[ 1256.868861][ T4455] rcu_scheduler_active = 2, debug_locks = 1
[ 1256.869091][ T4455] no locks held by smcrouted/4455.
[ 1256.869242][ T4455] 
[ 1256.869242][ T4455] stack backtrace:
[ 1256.869443][ T4455] CPU: 0 UID: 0 PID: 4455 Comm: smcrouted Not tainted 6.12.0-rc6-virtme #1
[ 1256.869732][ T4455] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 1256.869929][ T4455] Call Trace:
[ 1256.870050][ T4455]  <TASK>
[ 1256.870133][ T4455]  dump_stack_lvl+0xb0/0xd0
[ 1256.870303][ T4455]  lockdep_rcu_suspicious+0x1ea/0x280
[ 1256.870467][ T4455]  ip6mr_get_table+0x142/0x190
[ 1256.870631][ T4455]  ip6_mroute_setsockopt+0x185/0x12d0
[ 1256.870788][ T4455]  ? __pfx_ip6_mroute_setsockopt+0x10/0x10
[ 1256.870988][ T4455]  ? __lock_release+0x103/0x460
[ 1256.871146][ T4455]  ? __might_fault+0x11b/0x170
[ 1256.871304][ T4455]  ? trace_lock_acquire+0x14d/0x1f0
[ 1256.871465][ T4455]  ? __might_fault+0xc3/0x170
[ 1256.871617][ T4455]  ? lock_acquire+0x32/0xc0
[ 1256.871771][ T4455]  ? __might_fault+0xc3/0x170
[ 1256.871927][ T4455]  ? __might_fault+0x11b/0x170
[ 1256.872090][ T4455]  do_ipv6_setsockopt+0x705/0x34e0
[ 1256.872246][ T4455]  ? __lock_release+0xe0/0x460
[ 1256.872401][ T4455]  ? __pfx_do_ipv6_setsockopt+0x10/0x10
[ 1256.872556][ T4455]  ? __pfx_lock_acquire.part.0+0x10/0x10
[ 1256.872712][ T4455]  ? rcu_read_lock_any_held+0x43/0xb0
[ 1256.872864][ T4455]  ? validate_chain+0x1fe/0xae0
[ 1256.873018][ T4455]  ? is_bpf_text_address+0x67/0x120
[ 1256.873180][ T4455]  ? __pfx_validate_chain+0x10/0x10
[ 1256.873334][ T4455]  ? hlock_class+0x4e/0x130
[ 1256.873485][ T4455]  ? mark_lock+0x38/0x3e0
[ 1256.873607][ T4455]  ? __lock_acquire+0xb3f/0x1580
[ 1256.873772][ T4455]  ? find_held_lock+0x2c/0x110
[ 1256.873933][ T4455]  ? ipv6_setsockopt+0x7f/0xe0
[ 1256.874084][ T4455]  ipv6_setsockopt+0x7f/0xe0
[ 1256.874253][ T4455]  rawv6_setsockopt+0xb7/0x550
[ 1256.874414][ T4455]  ? __pfx_rawv6_setsockopt+0x10/0x10
[ 1256.874571][ T4455]  ? __lock_acquire+0xb3f/0x1580
[ 1256.874729][ T4455]  ? kfree+0x2d/0x340
[ 1256.874857][ T4455]  do_sock_setsockopt+0x149/0x3a0
[ 1256.875014][ T4455]  ? __pfx_do_sock_setsockopt+0x10/0x10
[ 1256.875169][ T4455]  ? __lock_release+0x103/0x460
[ 1256.875327][ T4455]  ? fd_install+0x1d1/0x5a0
[ 1256.875490][ T4455]  ? trace_lock_acquire+0x14d/0x1f0
[ 1256.875650][ T4455]  ? fdget+0x52/0x1e0
[ 1256.875775][ T4455]  __sys_setsockopt+0x104/0x1a0
[ 1256.875938][ T4455]  ? __pfx___sys_setsockopt+0x10/0x10
[ 1256.876098][ T4455]  ? __sys_socket+0x168/0x1e0
[ 1256.876255][ T4455]  ? __pfx___sys_socket+0x10/0x10
[ 1256.876424][ T4455]  ? do_user_addr_fault+0x374/0xe30
[ 1256.876585][ T4455]  __x64_sys_setsockopt+0xbd/0x160
[ 1256.876739][ T4455]  ? lockdep_hardirqs_on_prepare+0x275/0x410
[ 1256.876940][ T4455]  do_syscall_64+0xc1/0x1d0
[ 1256.877101][ T4455]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 1256.877291][ T4455] RIP: 0033:0x7f1c7403991e
[ 1256.877467][ T4455] 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
[ 1256.877999][ T4455] RSP: 002b:00007ffc2e300618 EFLAGS: 00000246 ORIG_RAX: 0000000000000036
[ 1256.878231][ T4455] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f1c7403991e
[ 1256.878459][ T4455] RDX: 00000000000000c8 RSI: 0000000000000029 RDI: 0000000000000008
[ 1256.878697][ T4455] RBP: 0000000000000008 R08: 0000000000000004 R09: 0000000006228010
[ 1256.878924][ T4455] R10: 00007ffc2e30063c R11: 0000000000000246 R12: 0000000000000000
[ 1256.879156][ T4455] R13: 0000000000402650 R14: 0000000000411dd8 R15: 00007f1c7413e000
[ 1256.879399][ T4455]  </TASK>
[ 1256.882500][ T4455] veth0: entered allmulticast mode
[ 1256.883025][ T4455] veth1: entered allmulticast mode
[ 1256.883366][ T4455] veth2: entered allmulticast mode
[ 1256.883685][ T4455] veth3: entered allmulticast mode
[ 1256.883990][ T4455] veth4: entered allmulticast mode
[ 1256.886406][ T4455] veth5: entered allmulticast mode
[ 1267.363757][ T4541] GACT probability NOT on
[ 1283.466923][ T4455] veth0: left allmulticast mode
[ 1283.467238][ T4455] veth1: left allmulticast mode
[ 1283.467473][ T4455] veth2: left allmulticast mode
[ 1283.467705][ T4455] veth3: left allmulticast mode
[ 1283.467928][ T4455] veth4: left allmulticast mode
[ 1283.468147][ T4455] veth5: left allmulticast mode