[ 1307.537943][ T7969] 
[ 1307.538105][ T7969] =============================
[ 1307.538277][ T7969] WARNING: suspicious RCU usage
[ 1307.538467][ T7969] 6.12.0-rc7-virtme #1 Not tainted
[ 1307.538646][ T7969] -----------------------------
[ 1307.538817][ T7969] net/ipv6/ip6mr.c:132 RCU-list traversed in non-reader section!!
[ 1307.539065][ T7969] 
[ 1307.539065][ T7969] other info that might help us debug this:
[ 1307.539065][ T7969] 
[ 1307.539397][ T7969] 
[ 1307.539397][ T7969] rcu_scheduler_active = 2, debug_locks = 1
[ 1307.539643][ T7969] no locks held by smcrouted/7969.
[ 1307.539813][ T7969] 
[ 1307.539813][ T7969] stack backtrace:
[ 1307.540018][ T7969] CPU: 0 UID: 0 PID: 7969 Comm: smcrouted Not tainted 6.12.0-rc7-virtme #1
[ 1307.540309][ T7969] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 1307.540527][ T7969] Call Trace:
[ 1307.540659][ T7969]  <TASK>
[ 1307.540753][ T7969]  dump_stack_lvl+0xb0/0xd0
[ 1307.540938][ T7969]  lockdep_rcu_suspicious+0x1ea/0x280
[ 1307.541112][ T7969]  ip6mr_get_table+0x142/0x190
[ 1307.541289][ T7969]  ip6_mroute_setsockopt+0x185/0x12d0
[ 1307.541462][ T7969]  ? __pfx_ip6_mroute_setsockopt+0x10/0x10
[ 1307.541676][ T7969]  ? __lock_release+0x103/0x460
[ 1307.541842][ T7969]  ? __might_fault+0x11b/0x170
[ 1307.542010][ T7969]  ? trace_lock_acquire+0x14d/0x1f0
[ 1307.542181][ T7969]  ? __might_fault+0xc3/0x170
[ 1307.542346][ T7969]  ? lock_acquire+0x32/0xc0
[ 1307.542509][ T7969]  ? __might_fault+0xc3/0x170
[ 1307.542683][ T7969]  ? __might_fault+0x11b/0x170
[ 1307.542858][ T7969]  do_ipv6_setsockopt+0x705/0x34e0
[ 1307.543031][ T7969]  ? __lock_release+0x10/0x460
[ 1307.543197][ T7969]  ? __pfx_do_ipv6_setsockopt+0x10/0x10
[ 1307.543362][ T7969]  ? __pfx_lock_acquire.part.0+0x10/0x10
[ 1307.543536][ T7969]  ? rcu_read_lock_any_held+0x43/0xb0
[ 1307.543703][ T7969]  ? validate_chain+0x1fe/0xae0
[ 1307.543869][ T7969]  ? is_bpf_text_address+0x67/0x120
[ 1307.544042][ T7969]  ? __pfx_validate_chain+0x10/0x10
[ 1307.544214][ T7969]  ? hlock_class+0x4e/0x130
[ 1307.544382][ T7969]  ? mark_lock+0x38/0x3e0
[ 1307.544513][ T7969]  ? __lock_acquire+0xb3f/0x1580
[ 1307.544689][ T7969]  ? find_held_lock+0x2c/0x110
[ 1307.544873][ T7969]  ? ipv6_setsockopt+0x7f/0xe0
[ 1307.545040][ T7969]  ipv6_setsockopt+0x7f/0xe0
[ 1307.545208][ T7969]  rawv6_setsockopt+0xb7/0x550
[ 1307.545379][ T7969]  ? __pfx_rawv6_setsockopt+0x10/0x10
[ 1307.545546][ T7969]  ? __lock_acquire+0xb3f/0x1580
[ 1307.545720][ T7969]  ? kfree+0x2d/0x340
[ 1307.545856][ T7969]  do_sock_setsockopt+0x149/0x3a0
[ 1307.546029][ T7969]  ? __pfx_do_sock_setsockopt+0x10/0x10
[ 1307.546195][ T7969]  ? __lock_release+0x103/0x460
[ 1307.546366][ T7969]  ? fd_install+0x1d1/0x5a0
[ 1307.546541][ T7969]  ? trace_lock_acquire+0x14d/0x1f0
[ 1307.546713][ T7969]  ? fdget+0x52/0x1e0
[ 1307.546843][ T7969]  __sys_setsockopt+0x104/0x1a0
[ 1307.547015][ T7969]  ? __pfx___sys_setsockopt+0x10/0x10
[ 1307.547184][ T7969]  ? __sys_socket+0x168/0x1e0
[ 1307.547351][ T7969]  ? __pfx___sys_socket+0x10/0x10
[ 1307.547519][ T7969]  ? do_user_addr_fault+0x374/0xe30
[ 1307.547691][ T7969]  __x64_sys_setsockopt+0xbd/0x160
[ 1307.547859][ T7969]  ? lockdep_hardirqs_on_prepare+0x275/0x410
[ 1307.548071][ T7969]  do_syscall_64+0xc1/0x1d0
[ 1307.548241][ T7969]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 1307.548451][ T7969] RIP: 0033:0x7f0e5b39091e
[ 1307.548646][ T7969] 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
[ 1307.549242][ T7969] RSP: 002b:00007ffda6b274a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000036
[ 1307.549494][ T7969] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f0e5b39091e
[ 1307.549744][ T7969] RDX: 00000000000000c8 RSI: 0000000000000029 RDI: 0000000000000008
[ 1307.549998][ T7969] RBP: 0000000000000008 R08: 0000000000000004 R09: 0000000000000000
[ 1307.550250][ T7969] R10: 00007ffda6b274cc R11: 0000000000000246 R12: 0000000000000000
[ 1307.550503][ T7969] R13: 0000000000402650 R14: 0000000000411dd8 R15: 00007f0e5b495000
[ 1307.550770][ T7969]  </TASK>
[ 1307.555571][ T7969] veth0: entered allmulticast mode
[ 1307.556150][ T7969] veth1: entered allmulticast mode
[ 1307.556525][ T7969] veth2: entered allmulticast mode
[ 1307.556912][ T7969] veth3: entered allmulticast mode
[ 1326.229779][ T7969] veth0: left allmulticast mode
[ 1326.230139][ T7969] veth1: left allmulticast mode
[ 1326.230487][ T7969] veth2: left allmulticast mode
[ 1326.230771][ T7969] veth3: left allmulticast mode