[ 1888.791265][T10189] 
[ 1888.792230][T10189] =============================
[ 1888.792609][T10189] WARNING: suspicious RCU usage
[ 1888.792782][T10189] 6.12.0-rc6-virtme #1 Not tainted
[ 1888.792945][T10189] -----------------------------
[ 1888.793104][T10189] net/ipv6/ip6mr.c:132 RCU-list traversed in non-reader section!!
[ 1888.793351][T10189] 
[ 1888.793351][T10189] other info that might help us debug this:
[ 1888.793351][T10189] 
[ 1888.793663][T10189] 
[ 1888.793663][T10189] rcu_scheduler_active = 2, debug_locks = 1
[ 1888.793903][T10189] no locks held by smcrouted/10189.
[ 1888.794087][T10189] 
[ 1888.794087][T10189] stack backtrace:
[ 1888.794305][T10189] CPU: 0 UID: 0 PID: 10189 Comm: smcrouted Not tainted 6.12.0-rc6-virtme #1
[ 1888.794612][T10189] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 1888.794970][T10189] Call Trace:
[ 1888.795097][T10189]  <TASK>
[ 1888.795190][T10189]  dump_stack_lvl+0xb0/0xd0
[ 1888.795364][T10189]  lockdep_rcu_suspicious+0x1ea/0x280
[ 1888.795536][T10189]  ip6mr_get_table+0x142/0x190
[ 1888.795701][T10189]  ip6_mroute_setsockopt+0x185/0x12d0
[ 1888.795870][T10189]  ? __pfx_ip6_mroute_setsockopt+0x10/0x10
[ 1888.796079][T10189]  ? __lock_release+0x103/0x460
[ 1888.796244][T10189]  ? __might_fault+0x11b/0x170
[ 1888.796407][T10189]  ? trace_lock_acquire+0x14d/0x1f0
[ 1888.796571][T10189]  ? __might_fault+0xc3/0x170
[ 1888.796736][T10189]  ? lock_acquire+0x32/0xc0
[ 1888.796896][T10189]  ? __might_fault+0xc3/0x170
[ 1888.797059][T10189]  ? __might_fault+0x11b/0x170
[ 1888.797224][T10189]  do_ipv6_setsockopt+0x705/0x34e0
[ 1888.797385][T10189]  ? __lock_release+0xe0/0x460
[ 1888.797555][T10189]  ? __pfx_do_ipv6_setsockopt+0x10/0x10
[ 1888.797712][T10189]  ? __pfx_lock_acquire.part.0+0x10/0x10
[ 1888.797881][T10189]  ? rcu_read_lock_any_held+0x43/0xb0
[ 1888.798047][T10189]  ? validate_chain+0x1fe/0xae0
[ 1888.798212][T10189]  ? is_bpf_text_address+0x67/0x120
[ 1888.798388][T10189]  ? __pfx_validate_chain+0x10/0x10
[ 1888.798548][T10189]  ? hlock_class+0x4e/0x130
[ 1888.798716][T10189]  ? mark_lock+0x38/0x3e0
[ 1888.798852][T10189]  ? __lock_acquire+0xb3f/0x1580
[ 1888.799028][T10189]  ? find_held_lock+0x2c/0x110
[ 1888.799199][T10189]  ? ipv6_setsockopt+0x7f/0xe0
[ 1888.799360][T10189]  ipv6_setsockopt+0x7f/0xe0
[ 1888.799538][T10189]  rawv6_setsockopt+0xb7/0x550
[ 1888.799710][T10189]  ? __pfx_rawv6_setsockopt+0x10/0x10
[ 1888.799891][T10189]  ? __lock_acquire+0xb3f/0x1580
[ 1888.800060][T10189]  ? kfree+0x2d/0x340
[ 1888.800187][T10189]  do_sock_setsockopt+0x149/0x3a0
[ 1888.800352][T10189]  ? __pfx_do_sock_setsockopt+0x10/0x10
[ 1888.800515][T10189]  ? __lock_release+0x103/0x460
[ 1888.800693][T10189]  ? fd_install+0x1d1/0x5a0
[ 1888.800859][T10189]  ? trace_lock_acquire+0x14d/0x1f0
[ 1888.801042][T10189]  ? fdget+0x52/0x1e0
[ 1888.801177][T10189]  __sys_setsockopt+0x104/0x1a0
[ 1888.801344][T10189]  ? __pfx___sys_setsockopt+0x10/0x10
[ 1888.801531][T10189]  ? __sys_socket+0x168/0x1e0
[ 1888.801701][T10189]  ? __pfx___sys_socket+0x10/0x10
[ 1888.801887][T10189]  __x64_sys_setsockopt+0xbd/0x160
[ 1888.802050][T10189]  ? lockdep_hardirqs_on_prepare+0x275/0x410
[ 1888.802258][T10189]  do_syscall_64+0xc1/0x1d0
[ 1888.802443][T10189]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 1888.802660][T10189] RIP: 0033:0x7fbadee2891e
[ 1888.802857][T10189] 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
[ 1888.803600][T10189] RSP: 002b:00007ffd92070cb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000036
[ 1888.803854][T10189] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fbadee2891e
[ 1888.804110][T10189] RDX: 00000000000000c8 RSI: 0000000000000029 RDI: 0000000000000008
[ 1888.804462][T10189] RBP: 0000000000000008 R08: 0000000000000004 R09: 0000000000000000
[ 1888.804727][T10189] R10: 00007ffd92070cdc R11: 0000000000000246 R12: 0000000000000000
[ 1888.804968][T10189] R13: 0000000000402650 R14: 0000000000411dd8 R15: 00007fbadef2d000
[ 1888.805248][T10189]  </TASK>
[ 1888.820204][T10189] veth0: entered allmulticast mode
[ 1888.820779][T10189] veth1: entered allmulticast mode
[ 1888.821113][T10189] veth2: entered allmulticast mode
[ 1888.821459][T10189] veth3: entered allmulticast mode
[ 1917.655151][T10189] veth0: left allmulticast mode
[ 1917.655451][T10189] veth1: left allmulticast mode
[ 1917.655681][T10189] veth2: left allmulticast mode
[ 1917.655906][T10189] veth3: left allmulticast mode