[ 1301.192206][ T7716] 
[ 1301.192337][ T7716] =============================
[ 1301.192500][ T7716] WARNING: suspicious RCU usage
[ 1301.193572][ T7716] 6.12.0-rc6-virtme #1 Not tainted
[ 1301.193742][ T7716] -----------------------------
[ 1301.193899][ T7716] net/ipv6/ip6mr.c:132 RCU-list traversed in non-reader section!!
[ 1301.194133][ T7716] 
[ 1301.194133][ T7716] other info that might help us debug this:
[ 1301.194133][ T7716] 
[ 1301.194441][ T7716] 
[ 1301.194441][ T7716] rcu_scheduler_active = 2, debug_locks = 1
[ 1301.194788][ T7716] no locks held by smcrouted/7716.
[ 1301.194949][ T7716] 
[ 1301.194949][ T7716] stack backtrace:
[ 1301.195143][ T7716] CPU: 0 UID: 0 PID: 7716 Comm: smcrouted Not tainted 6.12.0-rc6-virtme #1
[ 1301.195418][ T7716] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 1301.195615][ T7716] Call Trace:
[ 1301.195743][ T7716]  <TASK>
[ 1301.195830][ T7716]  dump_stack_lvl+0xb0/0xd0
[ 1301.196001][ T7716]  lockdep_rcu_suspicious+0x1ea/0x280
[ 1301.196163][ T7716]  ip6mr_get_table+0x142/0x190
[ 1301.196325][ T7716]  ip6_mroute_setsockopt+0x185/0x12d0
[ 1301.196488][ T7716]  ? __pfx_ip6_mroute_setsockopt+0x10/0x10
[ 1301.196695][ T7716]  ? __lock_release+0x103/0x460
[ 1301.196856][ T7716]  ? __might_fault+0x11b/0x170
[ 1301.197015][ T7716]  ? trace_lock_acquire+0x14d/0x1f0
[ 1301.197181][ T7716]  ? __might_fault+0xc3/0x170
[ 1301.197339][ T7716]  ? lock_acquire+0x32/0xc0
[ 1301.197505][ T7716]  ? __might_fault+0xc3/0x170
[ 1301.197664][ T7716]  ? __might_fault+0x11b/0x170
[ 1301.197833][ T7716]  do_ipv6_setsockopt+0x705/0x34e0
[ 1301.197997][ T7716]  ? __lock_release+0xe0/0x460
[ 1301.198159][ T7716]  ? __pfx_do_ipv6_setsockopt+0x10/0x10
[ 1301.198315][ T7716]  ? __pfx_lock_acquire.part.0+0x10/0x10
[ 1301.198477][ T7716]  ? rcu_read_lock_any_held+0x43/0xb0
[ 1301.198633][ T7716]  ? validate_chain+0x1fe/0xae0
[ 1301.198801][ T7716]  ? is_bpf_text_address+0x67/0x120
[ 1301.198969][ T7716]  ? __pfx_validate_chain+0x10/0x10
[ 1301.199130][ T7716]  ? hlock_class+0x4e/0x130
[ 1301.199288][ T7716]  ? mark_lock+0x38/0x3e0
[ 1301.199412][ T7716]  ? __lock_acquire+0xb3f/0x1580
[ 1301.199834][ T7716]  ? find_held_lock+0x2c/0x110
[ 1301.200003][ T7716]  ? ipv6_setsockopt+0x7f/0xe0
[ 1301.200160][ T7716]  ipv6_setsockopt+0x7f/0xe0
[ 1301.200320][ T7716]  rawv6_setsockopt+0xb7/0x550
[ 1301.200482][ T7716]  ? __pfx_rawv6_setsockopt+0x10/0x10
[ 1301.200651][ T7716]  ? __lock_acquire+0xb3f/0x1580
[ 1301.200817][ T7716]  ? kfree+0x2d/0x340
[ 1301.200945][ T7716]  do_sock_setsockopt+0x149/0x3a0
[ 1301.201106][ T7716]  ? __pfx_do_sock_setsockopt+0x10/0x10
[ 1301.201263][ T7716]  ? __lock_release+0x103/0x460
[ 1301.201441][ T7716]  ? fd_install+0x1d1/0x5a0
[ 1301.201602][ T7716]  ? trace_lock_acquire+0x14d/0x1f0
[ 1301.201771][ T7716]  ? fdget+0x52/0x1e0
[ 1301.201911][ T7716]  __sys_setsockopt+0x104/0x1a0
[ 1301.202085][ T7716]  ? __pfx___sys_setsockopt+0x10/0x10
[ 1301.202260][ T7716]  ? __sys_socket+0x168/0x1e0
[ 1301.202421][ T7716]  ? __pfx___sys_socket+0x10/0x10
[ 1301.202583][ T7716]  ? do_user_addr_fault+0x374/0xe30
[ 1301.202745][ T7716]  __x64_sys_setsockopt+0xbd/0x160
[ 1301.202904][ T7716]  ? lockdep_hardirqs_on_prepare+0x275/0x410
[ 1301.203104][ T7716]  do_syscall_64+0xc1/0x1d0
[ 1301.203278][ T7716]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 1301.203480][ T7716] RIP: 0033:0x7f0d6f36191e
[ 1301.203650][ T7716] 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
[ 1301.204233][ T7716] RSP: 002b:00007ffe8e6b9f58 EFLAGS: 00000246 ORIG_RAX: 0000000000000036
[ 1301.204496][ T7716] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f0d6f36191e
[ 1301.204753][ T7716] RDX: 00000000000000c8 RSI: 0000000000000029 RDI: 0000000000000008
[ 1301.205011][ T7716] RBP: 0000000000000008 R08: 0000000000000004 R09: 0000000000000000
[ 1301.205257][ T7716] R10: 00007ffe8e6b9f7c R11: 0000000000000246 R12: 0000000000000000
[ 1301.205514][ T7716] R13: 0000000000402650 R14: 0000000000411dd8 R15: 00007f0d6f466000
[ 1301.205790][ T7716]  </TASK>
[ 1301.208413][ T7716] veth0: entered allmulticast mode
[ 1301.208947][ T7716] veth1: entered allmulticast mode
[ 1301.209276][ T7716] veth2: entered allmulticast mode
[ 1301.209610][ T7716] veth3: entered allmulticast mode
[ 1320.169669][ T7716] veth0: left allmulticast mode
[ 1320.170088][ T7716] veth1: left allmulticast mode
[ 1320.170376][ T7716] veth2: left allmulticast mode
[ 1320.171003][ T7716] veth3: left allmulticast mode