[ 1263.115522][ T4311] 
[ 1263.115677][ T4311] =============================
[ 1263.115940][ T4311] WARNING: suspicious RCU usage
[ 1263.116178][ T4311] 6.12.0-rc6-virtme #1 Not tainted
[ 1263.116455][ T4311] -----------------------------
[ 1263.116704][ T4311] net/ipv6/ip6mr.c:132 RCU-list traversed in non-reader section!!
[ 1263.117088][ T4311] 
[ 1263.117088][ T4311] other info that might help us debug this:
[ 1263.117088][ T4311] 
[ 1263.117607][ T4311] 
[ 1263.117607][ T4311] rcu_scheduler_active = 2, debug_locks = 1
[ 1263.117991][ T4311] no locks held by smcrouted/4311.
[ 1263.118259][ T4311] 
[ 1263.118259][ T4311] stack backtrace:
[ 1263.118594][ T4311] CPU: 3 UID: 0 PID: 4311 Comm: smcrouted Not tainted 6.12.0-rc6-virtme #1
[ 1263.119047][ T4311] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 1263.119364][ T4311] Call Trace:
[ 1263.119567][ T4311]  <TASK>
[ 1263.119703][ T4311]  dump_stack_lvl+0xb0/0xd0
[ 1263.119967][ T4311]  lockdep_rcu_suspicious+0x1ea/0x280
[ 1263.120229][ T4311]  ip6mr_get_table+0x142/0x190
[ 1263.120491][ T4311]  ip6_mroute_setsockopt+0x185/0x12d0
[ 1263.120754][ T4311]  ? __pfx_ip6_mroute_setsockopt+0x10/0x10
[ 1263.121073][ T4311]  ? __lock_release+0x103/0x460
[ 1263.121320][ T4311]  ? __might_fault+0x11b/0x170
[ 1263.121575][ T4311]  ? trace_lock_acquire+0x14d/0x1f0
[ 1263.121844][ T4311]  ? __might_fault+0xc3/0x170
[ 1263.122089][ T4311]  ? lock_acquire+0x32/0xc0
[ 1263.122334][ T4311]  ? __might_fault+0xc3/0x170
[ 1263.122595][ T4311]  ? __might_fault+0x11b/0x170
[ 1263.122858][ T4311]  do_ipv6_setsockopt+0x705/0x34e0
[ 1263.123114][ T4311]  ? __lock_release+0xe0/0x460
[ 1263.123366][ T4311]  ? __pfx_do_ipv6_setsockopt+0x10/0x10
[ 1263.123610][ T4311]  ? __pfx_lock_acquire.part.0+0x10/0x10
[ 1263.123872][ T4311]  ? rcu_read_lock_any_held+0x43/0xb0
[ 1263.124134][ T4311]  ? validate_chain+0x1fe/0xae0
[ 1263.124385][ T4311]  ? is_bpf_text_address+0x67/0x120
[ 1263.124648][ T4311]  ? __pfx_validate_chain+0x10/0x10
[ 1263.124896][ T4311]  ? hlock_class+0x4e/0x130
[ 1263.125160][ T4311]  ? mark_lock+0x38/0x3e0
[ 1263.125360][ T4311]  ? __lock_acquire+0xb3f/0x1580
[ 1263.125634][ T4311]  ? find_held_lock+0x2c/0x110
[ 1263.125903][ T4311]  ? ipv6_setsockopt+0x7f/0xe0
[ 1263.126154][ T4311]  ipv6_setsockopt+0x7f/0xe0
[ 1263.126415][ T4311]  rawv6_setsockopt+0xb7/0x550
[ 1263.126672][ T4311]  ? __pfx_rawv6_setsockopt+0x10/0x10
[ 1263.126916][ T4311]  ? __lock_acquire+0xb3f/0x1580
[ 1263.127175][ T4311]  ? kfree+0x2d/0x340
[ 1263.127377][ T4311]  do_sock_setsockopt+0x149/0x3a0
[ 1263.127630][ T4311]  ? __pfx_do_sock_setsockopt+0x10/0x10
[ 1263.127885][ T4311]  ? __lock_release+0x103/0x460
[ 1263.128135][ T4311]  ? fd_install+0x1d1/0x5a0
[ 1263.128390][ T4311]  ? trace_lock_acquire+0x14d/0x1f0
[ 1263.128650][ T4311]  ? fdget+0x52/0x1e0
[ 1263.128852][ T4311]  __sys_setsockopt+0x104/0x1a0
[ 1263.129112][ T4311]  ? __pfx___sys_setsockopt+0x10/0x10
[ 1263.129378][ T4311]  ? __sys_socket+0x168/0x1e0
[ 1263.129640][ T4311]  ? __pfx___sys_socket+0x10/0x10
[ 1263.129915][ T4311]  ? do_user_addr_fault+0x374/0xe30
[ 1263.130198][ T4311]  __x64_sys_setsockopt+0xbd/0x160
[ 1263.130452][ T4311]  ? lockdep_hardirqs_on_prepare+0x275/0x410
[ 1263.130783][ T4311]  do_syscall_64+0xc1/0x1d0
[ 1263.131040][ T4311]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 1263.131384][ T4311] RIP: 0033:0x7f420c7b991e
[ 1263.131654][ T4311] 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
[ 1263.132525][ T4311] RSP: 002b:00007ffdaf4099d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000036
[ 1263.132922][ T4311] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f420c7b991e
[ 1263.133292][ T4311] RDX: 00000000000000c8 RSI: 0000000000000029 RDI: 0000000000000008
[ 1263.133657][ T4311] RBP: 0000000000000008 R08: 0000000000000004 R09: 000000003bcf4010
[ 1263.134033][ T4311] R10: 00007ffdaf4099fc R11: 0000000000000246 R12: 0000000000000000
[ 1263.134401][ T4311] R13: 0000000000402650 R14: 0000000000411dd8 R15: 00007f420c8be000
[ 1263.134806][ T4311]  </TASK>
[ 1263.137786][ T4311] veth0: entered allmulticast mode
[ 1263.138472][ T4311] veth1: entered allmulticast mode
[ 1263.138892][ T4311] veth2: entered allmulticast mode
[ 1263.141354][ T4311] veth3: entered allmulticast mode
[ 1263.141716][ T4311] veth4: entered allmulticast mode
[ 1263.142026][ T4311] veth5: entered allmulticast mode
[ 1274.103491][ T4399] GACT probability NOT on
[ 1290.284734][ T4311] veth0: left allmulticast mode
[ 1290.285082][ T4311] veth1: left allmulticast mode
[ 1290.285340][ T4311] veth2: left allmulticast mode
[ 1290.285592][ T4311] veth3: left allmulticast mode
[ 1290.285833][ T4311] veth4: left allmulticast mode
[ 1290.286062][ T4311] veth5: left allmulticast mode