[ 1264.950635][ T4500] 
[ 1264.950828][ T4500] =============================
[ 1264.951012][ T4500] WARNING: suspicious RCU usage
[ 1264.951209][ T4500] 6.12.0-rc6-virtme #1 Not tainted
[ 1264.951402][ T4500] -----------------------------
[ 1264.951680][ T4500] net/ipv6/ip6mr.c:132 RCU-list traversed in non-reader section!!
[ 1264.952022][ T4500] 
[ 1264.952022][ T4500] other info that might help us debug this:
[ 1264.952022][ T4500] 
[ 1264.952838][ T4500] 
[ 1264.952838][ T4500] rcu_scheduler_active = 2, debug_locks = 1
[ 1264.953152][ T4500] no locks held by smcrouted/4500.
[ 1264.953351][ T4500] 
[ 1264.953351][ T4500] stack backtrace:
[ 1264.953607][ T4500] CPU: 2 UID: 0 PID: 4500 Comm: smcrouted Not tainted 6.12.0-rc6-virtme #1
[ 1264.954045][ T4500] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 1264.954356][ T4500] Call Trace:
[ 1264.954555][ T4500]  <TASK>
[ 1264.954696][ T4500]  dump_stack_lvl+0xb0/0xd0
[ 1264.954969][ T4500]  lockdep_rcu_suspicious+0x1ea/0x280
[ 1264.955246][ T4500]  ip6mr_get_table+0x142/0x190
[ 1264.955511][ T4500]  ip6_mroute_setsockopt+0x185/0x12d0
[ 1264.955772][ T4500]  ? __pfx_ip6_mroute_setsockopt+0x10/0x10
[ 1264.956104][ T4500]  ? __lock_release+0x103/0x460
[ 1264.956357][ T4500]  ? __might_fault+0x11b/0x170
[ 1264.956614][ T4500]  ? trace_lock_acquire+0x14d/0x1f0
[ 1264.956885][ T4500]  ? __might_fault+0xc3/0x170
[ 1264.957140][ T4500]  ? lock_acquire+0x32/0xc0
[ 1264.957383][ T4500]  ? __might_fault+0xc3/0x170
[ 1264.957643][ T4500]  ? __might_fault+0x11b/0x170
[ 1264.957913][ T4500]  do_ipv6_setsockopt+0x705/0x34e0
[ 1264.958178][ T4500]  ? __lock_release+0xe0/0x460
[ 1264.958438][ T4500]  ? __pfx_do_ipv6_setsockopt+0x10/0x10
[ 1264.958692][ T4500]  ? __pfx_lock_acquire.part.0+0x10/0x10
[ 1264.958964][ T4500]  ? rcu_read_lock_any_held+0x43/0xb0
[ 1264.959225][ T4500]  ? validate_chain+0x1fe/0xae0
[ 1264.959482][ T4500]  ? is_bpf_text_address+0x67/0x120
[ 1264.959749][ T4500]  ? __pfx_validate_chain+0x10/0x10
[ 1264.960001][ T4500]  ? hlock_class+0x4e/0x130
[ 1264.960263][ T4500]  ? mark_lock+0x38/0x3e0
[ 1264.960465][ T4500]  ? __lock_acquire+0xb3f/0x1580
[ 1264.960732][ T4500]  ? find_held_lock+0x2c/0x110
[ 1264.961020][ T4500]  ? ipv6_setsockopt+0x7f/0xe0
[ 1264.961286][ T4500]  ipv6_setsockopt+0x7f/0xe0
[ 1264.961547][ T4500]  rawv6_setsockopt+0xb7/0x550
[ 1264.961814][ T4500]  ? __pfx_rawv6_setsockopt+0x10/0x10
[ 1264.962069][ T4500]  ? __lock_acquire+0xb3f/0x1580
[ 1264.962327][ T4500]  ? kfree+0x2d/0x340
[ 1264.962536][ T4500]  do_sock_setsockopt+0x149/0x3a0
[ 1264.962801][ T4500]  ? __pfx_do_sock_setsockopt+0x10/0x10
[ 1264.963063][ T4500]  ? __lock_release+0x103/0x460
[ 1264.963330][ T4500]  ? fd_install+0x1d1/0x5a0
[ 1264.963592][ T4500]  ? trace_lock_acquire+0x14d/0x1f0
[ 1264.963849][ T4500]  ? fdget+0x52/0x1e0
[ 1264.964055][ T4500]  __sys_setsockopt+0x104/0x1a0
[ 1264.964325][ T4500]  ? __pfx___sys_setsockopt+0x10/0x10
[ 1264.964579][ T4500]  ? __sys_socket+0x168/0x1e0
[ 1264.964839][ T4500]  ? __pfx___sys_socket+0x10/0x10
[ 1264.965101][ T4500]  ? do_user_addr_fault+0x374/0xe30
[ 1264.965373][ T4500]  __x64_sys_setsockopt+0xbd/0x160
[ 1264.965639][ T4500]  ? lockdep_hardirqs_on_prepare+0x275/0x410
[ 1264.965961][ T4500]  do_syscall_64+0xc1/0x1d0
[ 1264.966243][ T4500]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 1264.966563][ T4500] RIP: 0033:0x7f926cad791e
[ 1264.966831][ T4500] 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
[ 1264.967808][ T4500] RSP: 002b:00007ffc9ba28708 EFLAGS: 00000246 ORIG_RAX: 0000000000000036
[ 1264.968208][ T4500] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f926cad791e
[ 1264.968598][ T4500] RDX: 00000000000000c8 RSI: 0000000000000029 RDI: 0000000000000008
[ 1264.968983][ T4500] RBP: 0000000000000008 R08: 0000000000000004 R09: 000000000f913010
[ 1264.969382][ T4500] R10: 00007ffc9ba2872c R11: 0000000000000246 R12: 0000000000000000
[ 1264.969767][ T4500] R13: 0000000000402650 R14: 0000000000411dd8 R15: 00007f926cbdc000
[ 1264.970194][ T4500]  </TASK>
[ 1264.998584][ T4500] veth0: entered allmulticast mode
[ 1264.999833][ T4500] veth1: entered allmulticast mode
[ 1265.000241][ T4500] veth2: entered allmulticast mode
[ 1265.000606][ T4500] veth3: entered allmulticast mode
[ 1265.000935][ T4500] veth4: entered allmulticast mode
[ 1265.001294][ T4500] veth5: entered allmulticast mode
[ 1275.980503][ T4584] GACT probability NOT on
[ 1292.594011][ T4500] veth0: left allmulticast mode
[ 1292.594428][ T4500] veth1: left allmulticast mode
[ 1292.594715][ T4500] veth2: left allmulticast mode
[ 1292.595014][ T4500] veth3: left allmulticast mode
[ 1292.595349][ T4500] veth4: left allmulticast mode
[ 1292.595693][ T4500] veth5: left allmulticast mode