[ 1854.861108][T12465] 
[ 1854.861311][T12465] =============================
[ 1854.863176][T12465] WARNING: suspicious RCU usage
[ 1854.863645][T12465] 6.12.0-rc6-virtme #1 Not tainted
[ 1854.864047][T12465] -----------------------------
[ 1854.864418][T12465] net/ipv6/ip6mr.c:132 RCU-list traversed in non-reader section!!
[ 1854.864903][T12465] 
[ 1854.864903][T12465] other info that might help us debug this:
[ 1854.864903][T12465] 
[ 1854.865573][T12465] 
[ 1854.865573][T12465] rcu_scheduler_active = 2, debug_locks = 1
[ 1854.866101][T12465] no locks held by smcrouted/12465.
[ 1854.866520][T12465] 
[ 1854.866520][T12465] stack backtrace:
[ 1854.867109][T12465] CPU: 3 UID: 0 PID: 12465 Comm: smcrouted Not tainted 6.12.0-rc6-virtme #1
[ 1854.867545][T12465] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 1854.868099][T12465] Call Trace:
[ 1854.868298][T12465]  <TASK>
[ 1854.868431][T12465]  dump_stack_lvl+0xb0/0xd0
[ 1854.868701][T12465]  lockdep_rcu_suspicious+0x1ea/0x280
[ 1854.868962][T12465]  ip6mr_get_table+0x142/0x190
[ 1854.869208][T12465]  ip6_mroute_setsockopt+0x185/0x12d0
[ 1854.869452][T12465]  ? __pfx_ip6_mroute_setsockopt+0x10/0x10
[ 1854.869765][T12465]  ? __lock_release+0x103/0x460
[ 1854.870009][T12465]  ? __might_fault+0x11b/0x170
[ 1854.870259][T12465]  ? trace_lock_acquire+0x14d/0x1f0
[ 1854.870502][T12465]  ? __might_fault+0xc3/0x170
[ 1854.870743][T12465]  ? lock_acquire+0x32/0xc0
[ 1854.870997][T12465]  ? __might_fault+0xc3/0x170
[ 1854.871258][T12465]  ? __might_fault+0x11b/0x170
[ 1854.871523][T12465]  do_ipv6_setsockopt+0x705/0x34e0
[ 1854.871777][T12465]  ? __lock_release+0xe0/0x460
[ 1854.872020][T12465]  ? __pfx_do_ipv6_setsockopt+0x10/0x10
[ 1854.872256][T12465]  ? __pfx_lock_acquire.part.0+0x10/0x10
[ 1854.872500][T12465]  ? rcu_read_lock_any_held+0x43/0xb0
[ 1854.872738][T12465]  ? validate_chain+0x1fe/0xae0
[ 1854.872974][T12465]  ? is_bpf_text_address+0x67/0x120
[ 1854.873225][T12465]  ? __pfx_validate_chain+0x10/0x10
[ 1854.873461][T12465]  ? hlock_class+0x4e/0x130
[ 1854.873722][T12465]  ? mark_lock+0x38/0x3e0
[ 1854.873923][T12465]  ? __lock_acquire+0xb3f/0x1580
[ 1854.874176][T12465]  ? find_held_lock+0x2c/0x110
[ 1854.874430][T12465]  ? ipv6_setsockopt+0x7f/0xe0
[ 1854.874662][T12465]  ipv6_setsockopt+0x7f/0xe0
[ 1854.874901][T12465]  rawv6_setsockopt+0xb7/0x550
[ 1854.875140][T12465]  ? __pfx_rawv6_setsockopt+0x10/0x10
[ 1854.875371][T12465]  ? __lock_acquire+0xb3f/0x1580
[ 1854.875621][T12465]  ? kfree+0x2d/0x340
[ 1854.875811][T12465]  do_sock_setsockopt+0x149/0x3a0
[ 1854.876046][T12465]  ? __pfx_do_sock_setsockopt+0x10/0x10
[ 1854.876276][T12465]  ? __lock_release+0x103/0x460
[ 1854.876813][T12465]  ? fd_install+0x1d1/0x5a0
[ 1854.877074][T12465]  ? trace_lock_acquire+0x14d/0x1f0
[ 1854.877320][T12465]  ? fdget+0x52/0x1e0
[ 1854.877517][T12465]  __sys_setsockopt+0x104/0x1a0
[ 1854.877770][T12465]  ? __pfx___sys_setsockopt+0x10/0x10
[ 1854.878169][T12465]  ? __sys_socket+0x168/0x1e0
[ 1854.878410][T12465]  ? __pfx___sys_socket+0x10/0x10
[ 1854.878670][T12465]  __x64_sys_setsockopt+0xbd/0x160
[ 1854.878929][T12465]  ? lockdep_hardirqs_on_prepare+0x275/0x410
[ 1854.879409][T12465]  do_syscall_64+0xc1/0x1d0
[ 1854.879662][T12465]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 1854.879970][T12465] RIP: 0033:0x7fb85dc5291e
[ 1854.880228][T12465] 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
[ 1854.881246][T12465] RSP: 002b:00007fff78258e48 EFLAGS: 00000246 ORIG_RAX: 0000000000000036
[ 1854.881639][T12465] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb85dc5291e
[ 1854.882014][T12465] RDX: 00000000000000c8 RSI: 0000000000000029 RDI: 0000000000000008
[ 1854.882538][T12465] RBP: 0000000000000008 R08: 0000000000000004 R09: 0000000000000000
[ 1854.883062][T12465] R10: 00007fff78258e6c R11: 0000000000000246 R12: 0000000000000000
[ 1854.883429][T12465] R13: 0000000000402650 R14: 0000000000411dd8 R15: 00007fb85dd57000
[ 1854.883842][T12465]  </TASK>
[ 1854.889544][T12465] veth0: entered allmulticast mode
[ 1854.890061][T12465] veth1: entered allmulticast mode
[ 1854.890395][T12465] veth2: entered allmulticast mode
[ 1854.890724][T12465] veth3: entered allmulticast mode
[ 1884.537083][T12465] veth0: left allmulticast mode
[ 1884.537432][T12465] veth1: left allmulticast mode
[ 1884.537677][T12465] veth2: left allmulticast mode
[ 1884.537905][T12465] veth3: left allmulticast mode