[ 1870.710734][T12358] 
[ 1870.710854][T12358] =============================
[ 1870.711040][T12358] WARNING: suspicious RCU usage
[ 1870.711201][T12358] 6.12.0-rc5-virtme #1 Not tainted
[ 1870.711506][T12358] -----------------------------
[ 1870.711664][T12358] net/ipv6/ip6mr.c:132 RCU-list traversed in non-reader section!!
[ 1870.711919][T12358] 
[ 1870.711919][T12358] other info that might help us debug this:
[ 1870.711919][T12358] 
[ 1870.712241][T12358] 
[ 1870.712241][T12358] rcu_scheduler_active = 2, debug_locks = 1
[ 1870.712467][T12358] no locks held by smcrouted/12358.
[ 1870.712618][T12358] 
[ 1870.712618][T12358] stack backtrace:
[ 1870.712806][T12358] CPU: 0 UID: 0 PID: 12358 Comm: smcrouted Not tainted 6.12.0-rc5-virtme #1
[ 1870.713070][T12358] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 1870.713444][T12358] Call Trace:
[ 1870.713568][T12358]  <TASK>
[ 1870.713651][T12358]  dump_stack_lvl+0xb0/0xd0
[ 1870.713822][T12358]  lockdep_rcu_suspicious+0x1ea/0x280
[ 1870.713998][T12358]  ip6mr_get_table+0x142/0x190
[ 1870.714174][T12358]  ip6_mroute_setsockopt+0x185/0x12d0
[ 1870.714327][T12358]  ? __pfx_ip6_mroute_setsockopt+0x10/0x10
[ 1870.714538][T12358]  ? __lock_release+0x103/0x460
[ 1870.714688][T12358]  ? __might_fault+0x11b/0x170
[ 1870.714859][T12358]  ? trace_lock_acquire+0x14d/0x1f0
[ 1870.715015][T12358]  ? __might_fault+0xc3/0x170
[ 1870.715187][T12358]  ? lock_acquire+0x32/0xc0
[ 1870.715356][T12358]  ? __might_fault+0xc3/0x170
[ 1870.715507][T12358]  ? __might_fault+0x11b/0x170
[ 1870.715680][T12358]  do_ipv6_setsockopt+0x705/0x34e0
[ 1870.715836][T12358]  ? __lock_release+0x50/0x460
[ 1870.716025][T12358]  ? __pfx_do_ipv6_setsockopt+0x10/0x10
[ 1870.716174][T12358]  ? __pfx_lock_acquire.part.0+0x10/0x10
[ 1870.716352][T12358]  ? rcu_read_lock_any_held+0x43/0xb0
[ 1870.716510][T12358]  ? validate_chain+0x1fe/0xae0
[ 1870.716664][T12358]  ? is_bpf_text_address+0x67/0x120
[ 1870.716822][T12358]  ? __pfx_validate_chain+0x10/0x10
[ 1870.716974][T12358]  ? hlock_class+0x4e/0x130
[ 1870.717151][T12358]  ? mark_lock+0x38/0x3e0
[ 1870.717272][T12358]  ? __lock_acquire+0xb3f/0x1580
[ 1870.717456][T12358]  ? find_held_lock+0x2c/0x110
[ 1870.717616][T12358]  ? ipv6_setsockopt+0x7f/0xe0
[ 1870.717774][T12358]  ipv6_setsockopt+0x7f/0xe0
[ 1870.717928][T12358]  rawv6_setsockopt+0xb7/0x550
[ 1870.718082][T12358]  ? __pfx_rawv6_setsockopt+0x10/0x10
[ 1870.718231][T12358]  ? __lock_acquire+0xb3f/0x1580
[ 1870.718385][T12358]  ? kfree+0x2d/0x340
[ 1870.718506][T12358]  do_sock_setsockopt+0x149/0x3a0
[ 1870.718662][T12358]  ? __pfx_do_sock_setsockopt+0x10/0x10
[ 1870.718811][T12358]  ? __lock_release+0x103/0x460
[ 1870.718968][T12358]  ? fd_install+0x1d1/0x5a0
[ 1870.719122][T12358]  ? trace_lock_acquire+0x14d/0x1f0
[ 1870.719301][T12358]  ? fdget+0x52/0x1e0
[ 1870.719425][T12358]  __sys_setsockopt+0x104/0x1a0
[ 1870.719578][T12358]  ? __pfx___sys_setsockopt+0x10/0x10
[ 1870.719755][T12358]  ? __sys_socket+0x168/0x1e0
[ 1870.719906][T12358]  ? __pfx___sys_socket+0x10/0x10
[ 1870.720080][T12358]  __x64_sys_setsockopt+0xbd/0x160
[ 1870.720243][T12358]  ? lockdep_hardirqs_on_prepare+0x275/0x410
[ 1870.720429][T12358]  do_syscall_64+0xc1/0x1d0
[ 1870.720582][T12358]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 1870.720767][T12358] RIP: 0033:0x7f139949391e
[ 1870.720927][T12358] 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
[ 1870.721512][T12358] RSP: 002b:00007ffc2bb1f278 EFLAGS: 00000246 ORIG_RAX: 0000000000000036
[ 1870.721758][T12358] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f139949391e
[ 1870.722028][T12358] RDX: 00000000000000c8 RSI: 0000000000000029 RDI: 0000000000000008
[ 1870.722287][T12358] RBP: 0000000000000008 R08: 0000000000000004 R09: 0000000000000000
[ 1870.722529][T12358] R10: 00007ffc2bb1f29c R11: 0000000000000246 R12: 0000000000000000
[ 1870.722781][T12358] R13: 0000000000402650 R14: 0000000000411dd8 R15: 00007f1399598000
[ 1870.723069][T12358]  </TASK>
[ 1870.728550][T12358] veth0: entered allmulticast mode
[ 1870.729079][T12358] veth1: entered allmulticast mode
[ 1870.730667][T12358] veth2: entered allmulticast mode
[ 1870.731712][T12358] veth3: entered allmulticast mode
[ 1900.307617][T12358] veth0: left allmulticast mode
[ 1900.307926][T12358] veth1: left allmulticast mode
[ 1900.308186][T12358] veth2: left allmulticast mode
[ 1900.308446][T12358] veth3: left allmulticast mode