[ 1837.861987][T12644] 
[ 1837.862776][T12644] =============================
[ 1837.862960][T12644] WARNING: suspicious RCU usage
[ 1837.863157][T12644] 6.12.0-rc6-virtme #1 Not tainted
[ 1837.863336][T12644] -----------------------------
[ 1837.863517][T12644] net/ipv6/ip6mr.c:132 RCU-list traversed in non-reader section!!
[ 1837.863779][T12644] 
[ 1837.863779][T12644] other info that might help us debug this:
[ 1837.863779][T12644] 
[ 1837.864134][T12644] 
[ 1837.864134][T12644] rcu_scheduler_active = 2, debug_locks = 1
[ 1837.864401][T12644] no locks held by smcrouted/12644.
[ 1837.864579][T12644] 
[ 1837.864579][T12644] stack backtrace:
[ 1837.864803][T12644] CPU: 3 UID: 0 PID: 12644 Comm: smcrouted Not tainted 6.12.0-rc6-virtme #1
[ 1837.865108][T12644] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 1837.865500][T12644] Call Trace:
[ 1837.865643][T12644]  <TASK>
[ 1837.865738][T12644]  dump_stack_lvl+0xb0/0xd0
[ 1837.865930][T12644]  lockdep_rcu_suspicious+0x1ea/0x280
[ 1837.866111][T12644]  ip6mr_get_table+0x142/0x190
[ 1837.866298][T12644]  ip6_mroute_setsockopt+0x185/0x12d0
[ 1837.866472][T12644]  ? __pfx_ip6_mroute_setsockopt+0x10/0x10
[ 1837.866702][T12644]  ? __lock_release+0x103/0x460
[ 1837.866887][T12644]  ? __might_fault+0x11b/0x170
[ 1837.867070][T12644]  ? trace_lock_acquire+0x14d/0x1f0
[ 1837.867259][T12644]  ? __might_fault+0xc3/0x170
[ 1837.867446][T12644]  ? lock_acquire+0x32/0xc0
[ 1837.867656][T12644]  ? __might_fault+0xc3/0x170
[ 1837.867841][T12644]  ? __might_fault+0x11b/0x170
[ 1837.868014][T12644]  do_ipv6_setsockopt+0x705/0x34e0
[ 1837.868199][T12644]  ? __lock_release+0xe0/0x460
[ 1837.868372][T12644]  ? __pfx_do_ipv6_setsockopt+0x10/0x10
[ 1837.868545][T12644]  ? __pfx_lock_acquire.part.0+0x10/0x10
[ 1837.868732][T12644]  ? rcu_read_lock_any_held+0x43/0xb0
[ 1837.868904][T12644]  ? validate_chain+0x1fe/0xae0
[ 1837.869069][T12644]  ? is_bpf_text_address+0x67/0x120
[ 1837.869251][T12644]  ? __pfx_validate_chain+0x10/0x10
[ 1837.869417][T12644]  ? hlock_class+0x4e/0x130
[ 1837.869592][T12644]  ? mark_lock+0x38/0x3e0
[ 1837.869728][T12644]  ? __lock_acquire+0xb3f/0x1580
[ 1837.869915][T12644]  ? find_held_lock+0x2c/0x110
[ 1837.870102][T12644]  ? ipv6_setsockopt+0x7f/0xe0
[ 1837.870279][T12644]  ipv6_setsockopt+0x7f/0xe0
[ 1837.870453][T12644]  rawv6_setsockopt+0xb7/0x550
[ 1837.870637][T12644]  ? __pfx_rawv6_setsockopt+0x10/0x10
[ 1837.870808][T12644]  ? __lock_acquire+0xb3f/0x1580
[ 1837.870986][T12644]  ? kfree+0x2d/0x340
[ 1837.871126][T12644]  do_sock_setsockopt+0x149/0x3a0
[ 1837.871299][T12644]  ? __pfx_do_sock_setsockopt+0x10/0x10
[ 1837.871478][T12644]  ? __lock_release+0x103/0x460
[ 1837.871648][T12644]  ? fd_install+0x1d1/0x5a0
[ 1837.871821][T12644]  ? trace_lock_acquire+0x14d/0x1f0
[ 1837.871994][T12644]  ? fdget+0x52/0x1e0
[ 1837.872131][T12644]  __sys_setsockopt+0x104/0x1a0
[ 1837.872302][T12644]  ? __pfx___sys_setsockopt+0x10/0x10
[ 1837.872471][T12644]  ? __sys_socket+0x168/0x1e0
[ 1837.872644][T12644]  ? __pfx___sys_socket+0x10/0x10
[ 1837.872815][T12644]  __x64_sys_setsockopt+0xbd/0x160
[ 1837.872989][T12644]  ? lockdep_hardirqs_on_prepare+0x275/0x410
[ 1837.873204][T12644]  do_syscall_64+0xc1/0x1d0
[ 1837.873378][T12644]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 1837.873592][T12644] RIP: 0033:0x7f84956f491e
[ 1837.873783][T12644] 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
[ 1837.874367][T12644] RSP: 002b:00007ffc2bce1e78 EFLAGS: 00000246 ORIG_RAX: 0000000000000036
[ 1837.874632][T12644] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f84956f491e
[ 1837.874896][T12644] RDX: 00000000000000c8 RSI: 0000000000000029 RDI: 0000000000000008
[ 1837.875153][T12644] RBP: 0000000000000008 R08: 0000000000000004 R09: 0000000000000000
[ 1837.875416][T12644] R10: 00007ffc2bce1e9c R11: 0000000000000246 R12: 0000000000000000
[ 1837.875696][T12644] R13: 0000000000402650 R14: 0000000000411dd8 R15: 00007f84957f9000
[ 1837.875986][T12644]  </TASK>
[ 1837.882297][T12644] veth0: entered allmulticast mode
[ 1837.882878][T12644] veth1: entered allmulticast mode
[ 1837.884852][T12644] veth2: entered allmulticast mode
[ 1837.885222][T12644] veth3: entered allmulticast mode
[ 1867.199056][T12644] veth0: left allmulticast mode
[ 1867.199380][T12644] veth1: left allmulticast mode
[ 1867.199633][T12644] veth2: left allmulticast mode
[ 1867.199897][T12644] veth3: left allmulticast mode