[ 1264.455217][ T4311] 
[ 1264.455364][ T4311] =============================
[ 1264.455543][ T4311] WARNING: suspicious RCU usage
[ 1264.455703][ T4311] 6.12.0-rc6-virtme #1 Not tainted
[ 1264.455861][ T4311] -----------------------------
[ 1264.456018][ T4311] net/ipv6/ip6mr.c:132 RCU-list traversed in non-reader section!!
[ 1264.456716][ T4311] 
[ 1264.456716][ T4311] other info that might help us debug this:
[ 1264.456716][ T4311] 
[ 1264.457032][ T4311] 
[ 1264.457032][ T4311] rcu_scheduler_active = 2, debug_locks = 1
[ 1264.457278][ T4311] no locks held by smcrouted/4311.
[ 1264.457447][ T4311] 
[ 1264.457447][ T4311] stack backtrace:
[ 1264.457644][ T4311] CPU: 3 UID: 0 PID: 4311 Comm: smcrouted Not tainted 6.12.0-rc6-virtme #1
[ 1264.457923][ T4311] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 1264.458125][ T4311] Call Trace:
[ 1264.458245][ T4311]  <TASK>
[ 1264.458332][ T4311]  dump_stack_lvl+0xb0/0xd0
[ 1264.458524][ T4311]  lockdep_rcu_suspicious+0x1ea/0x280
[ 1264.458701][ T4311]  ip6mr_get_table+0x142/0x190
[ 1264.458869][ T4311]  ip6_mroute_setsockopt+0x185/0x12d0
[ 1264.459033][ T4311]  ? __pfx_ip6_mroute_setsockopt+0x10/0x10
[ 1264.459243][ T4311]  ? __lock_release+0x103/0x460
[ 1264.459403][ T4311]  ? __might_fault+0x11b/0x170
[ 1264.459578][ T4311]  ? trace_lock_acquire+0x14d/0x1f0
[ 1264.459745][ T4311]  ? __might_fault+0xc3/0x170
[ 1264.459903][ T4311]  ? lock_acquire+0x32/0xc0
[ 1264.460058][ T4311]  ? __might_fault+0xc3/0x170
[ 1264.460215][ T4311]  ? __might_fault+0x11b/0x170
[ 1264.460384][ T4311]  do_ipv6_setsockopt+0x705/0x34e0
[ 1264.460552][ T4311]  ? __lock_release+0xe0/0x460
[ 1264.460716][ T4311]  ? __pfx_do_ipv6_setsockopt+0x10/0x10
[ 1264.460871][ T4311]  ? __pfx_lock_acquire.part.0+0x10/0x10
[ 1264.461030][ T4311]  ? rcu_read_lock_any_held+0x43/0xb0
[ 1264.461193][ T4311]  ? validate_chain+0x1fe/0xae0
[ 1264.461352][ T4311]  ? is_bpf_text_address+0x67/0x120
[ 1264.461521][ T4311]  ? __pfx_validate_chain+0x10/0x10
[ 1264.461680][ T4311]  ? hlock_class+0x4e/0x130
[ 1264.461840][ T4311]  ? mark_lock+0x38/0x3e0
[ 1264.461973][ T4311]  ? __lock_acquire+0xb3f/0x1580
[ 1264.462141][ T4311]  ? find_held_lock+0x2c/0x110
[ 1264.462317][ T4311]  ? ipv6_setsockopt+0x7f/0xe0
[ 1264.462478][ T4311]  ipv6_setsockopt+0x7f/0xe0
[ 1264.462641][ T4311]  rawv6_setsockopt+0xb7/0x550
[ 1264.462805][ T4311]  ? __pfx_rawv6_setsockopt+0x10/0x10
[ 1264.462967][ T4311]  ? __lock_acquire+0xb3f/0x1580
[ 1264.463134][ T4311]  ? kfree+0x2d/0x340
[ 1264.463267][ T4311]  do_sock_setsockopt+0x149/0x3a0
[ 1264.463442][ T4311]  ? __pfx_do_sock_setsockopt+0x10/0x10
[ 1264.463600][ T4311]  ? __lock_release+0x103/0x460
[ 1264.463764][ T4311]  ? fd_install+0x1d1/0x5a0
[ 1264.463938][ T4311]  ? trace_lock_acquire+0x14d/0x1f0
[ 1264.464104][ T4311]  ? fdget+0x52/0x1e0
[ 1264.464229][ T4311]  __sys_setsockopt+0x104/0x1a0
[ 1264.464399][ T4311]  ? __pfx___sys_setsockopt+0x10/0x10
[ 1264.464557][ T4311]  ? __sys_socket+0x168/0x1e0
[ 1264.464722][ T4311]  ? __pfx___sys_socket+0x10/0x10
[ 1264.464878][ T4311]  ? do_user_addr_fault+0x374/0xe30
[ 1264.465050][ T4311]  __x64_sys_setsockopt+0xbd/0x160
[ 1264.465212][ T4311]  ? lockdep_hardirqs_on_prepare+0x275/0x410
[ 1264.465428][ T4311]  do_syscall_64+0xc1/0x1d0
[ 1264.465599][ T4311]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 1264.465799][ T4311] RIP: 0033:0x7f705bbc391e
[ 1264.465967][ 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
[ 1264.466510][ T4311] RSP: 002b:00007fffd9f41108 EFLAGS: 00000246 ORIG_RAX: 0000000000000036
[ 1264.466760][ T4311] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f705bbc391e
[ 1264.467001][ T4311] RDX: 00000000000000c8 RSI: 0000000000000029 RDI: 0000000000000008
[ 1264.467239][ T4311] RBP: 0000000000000008 R08: 0000000000000004 R09: 0000000017f4b010
[ 1264.467473][ T4311] R10: 00007fffd9f4112c R11: 0000000000000246 R12: 0000000000000000
[ 1264.467709][ T4311] R13: 0000000000402650 R14: 0000000000411dd8 R15: 00007f705bcc8000
[ 1264.467962][ T4311]  </TASK>
[ 1264.470907][ T4311] veth0: entered allmulticast mode
[ 1264.471464][ T4311] veth1: entered allmulticast mode
[ 1264.471798][ T4311] veth2: entered allmulticast mode
[ 1264.472134][ T4311] veth3: entered allmulticast mode
[ 1264.472459][ T4311] veth4: entered allmulticast mode
[ 1264.473027][ T4311] veth5: entered allmulticast mode
[ 1275.540570][ T4398] GACT probability NOT on
[ 1292.064217][ T4311] veth0: left allmulticast mode
[ 1292.064600][ T4311] veth1: left allmulticast mode
[ 1292.064833][ T4311] veth2: left allmulticast mode
[ 1292.065072][ T4311] veth3: left allmulticast mode
[ 1292.065336][ T4311] veth4: left allmulticast mode
[ 1292.065568][ T4311] veth5: left allmulticast mode