[ 1306.750364][T10176] 
[ 1306.750554][T10176] =============================
[ 1306.750748][T10176] WARNING: suspicious RCU usage
[ 1306.750924][T10176] 6.12.0-rc7-virtme #1 Not tainted
[ 1306.751098][T10176] -----------------------------
[ 1306.751324][T10176] net/ipv6/ip6mr.c:132 RCU-list traversed in non-reader section!!
[ 1306.751578][T10176] 
[ 1306.751578][T10176] other info that might help us debug this:
[ 1306.751578][T10176] 
[ 1306.751911][T10176] 
[ 1306.751911][T10176] rcu_scheduler_active = 2, debug_locks = 1
[ 1306.752164][T10176] no locks held by smcrouted/10176.
[ 1306.752351][T10176] 
[ 1306.752351][T10176] stack backtrace:
[ 1306.752569][T10176] CPU: 2 UID: 0 PID: 10176 Comm: smcrouted Not tainted 6.12.0-rc7-virtme #1
[ 1306.752852][T10176] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 1306.753052][T10176] Call Trace:
[ 1306.753176][T10176]  <TASK>
[ 1306.753263][T10176]  dump_stack_lvl+0xb0/0xd0
[ 1306.753438][T10176]  lockdep_rcu_suspicious+0x1ea/0x280
[ 1306.753609][T10176]  ip6mr_get_table+0x142/0x190
[ 1306.753778][T10176]  ip6_mroute_setsockopt+0x185/0x12d0
[ 1306.753945][T10176]  ? __pfx_ip6_mroute_setsockopt+0x10/0x10
[ 1306.754150][T10176]  ? __lock_release+0x103/0x460
[ 1306.754322][T10176]  ? __might_fault+0x11b/0x170
[ 1306.754486][T10176]  ? trace_lock_acquire+0x14d/0x1f0
[ 1306.754650][T10176]  ? __might_fault+0xc3/0x170
[ 1306.754808][T10176]  ? lock_acquire+0x32/0xc0
[ 1306.754967][T10176]  ? __might_fault+0xc3/0x170
[ 1306.755130][T10176]  ? __might_fault+0x11b/0x170
[ 1306.755299][T10176]  do_ipv6_setsockopt+0x705/0x34e0
[ 1306.755467][T10176]  ? __lock_release+0x10/0x460
[ 1306.755638][T10176]  ? __pfx_do_ipv6_setsockopt+0x10/0x10
[ 1306.755806][T10176]  ? __pfx_lock_acquire.part.0+0x10/0x10
[ 1306.755966][T10176]  ? rcu_read_lock_any_held+0x43/0xb0
[ 1306.756123][T10176]  ? validate_chain+0x1fe/0xae0
[ 1306.756283][T10176]  ? is_bpf_text_address+0x67/0x120
[ 1306.756451][T10176]  ? __pfx_validate_chain+0x10/0x10
[ 1306.756607][T10176]  ? hlock_class+0x4e/0x130
[ 1306.756769][T10176]  ? mark_lock+0x38/0x3e0
[ 1306.756901][T10176]  ? __lock_acquire+0xb3f/0x1580
[ 1306.757069][T10176]  ? find_held_lock+0x2c/0x110
[ 1306.757237][T10176]  ? ipv6_setsockopt+0x7f/0xe0
[ 1306.757393][T10176]  ipv6_setsockopt+0x7f/0xe0
[ 1306.757553][T10176]  rawv6_setsockopt+0xb7/0x550
[ 1306.757720][T10176]  ? __pfx_rawv6_setsockopt+0x10/0x10
[ 1306.757881][T10176]  ? __lock_acquire+0xb3f/0x1580
[ 1306.758040][T10176]  ? kfree+0x2d/0x340
[ 1306.758166][T10176]  do_sock_setsockopt+0x149/0x3a0
[ 1306.758338][T10176]  ? __pfx_do_sock_setsockopt+0x10/0x10
[ 1306.758498][T10176]  ? __lock_release+0x103/0x460
[ 1306.758656][T10176]  ? fd_install+0x1d1/0x5a0
[ 1306.758830][T10176]  ? trace_lock_acquire+0x14d/0x1f0
[ 1306.758988][T10176]  ? fdget+0x52/0x1e0
[ 1306.759112][T10176]  __sys_setsockopt+0x104/0x1a0
[ 1306.759279][T10176]  ? __pfx___sys_setsockopt+0x10/0x10
[ 1306.759437][T10176]  ? __sys_socket+0x168/0x1e0
[ 1306.759603][T10176]  ? __pfx___sys_socket+0x10/0x10
[ 1306.759766][T10176]  ? do_user_addr_fault+0x374/0xe30
[ 1306.759935][T10176]  __x64_sys_setsockopt+0xbd/0x160
[ 1306.760092][T10176]  ? lockdep_hardirqs_on_prepare+0x275/0x410
[ 1306.760289][T10176]  do_syscall_64+0xc1/0x1d0
[ 1306.760450][T10176]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 1306.760647][T10176] RIP: 0033:0x7faeea33391e
[ 1306.760819][T10176] 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
[ 1306.761396][T10176] RSP: 002b:00007ffc4ec7d558 EFLAGS: 00000246 ORIG_RAX: 0000000000000036
[ 1306.761638][T10176] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007faeea33391e
[ 1306.761879][T10176] RDX: 00000000000000c8 RSI: 0000000000000029 RDI: 0000000000000008
[ 1306.762121][T10176] RBP: 0000000000000008 R08: 0000000000000004 R09: 0000000000000000
[ 1306.762359][T10176] R10: 00007ffc4ec7d57c R11: 0000000000000246 R12: 0000000000000000
[ 1306.762606][T10176] R13: 0000000000402650 R14: 0000000000411dd8 R15: 00007faeea438000
[ 1306.762896][T10176]  </TASK>
[ 1306.772844][T10176] veth0: entered allmulticast mode
[ 1306.773572][T10176] veth1: entered allmulticast mode
[ 1306.773973][T10176] veth2: entered allmulticast mode
[ 1306.774356][T10176] veth3: entered allmulticast mode
[ 1325.768995][T10176] veth0: left allmulticast mode
[ 1325.769368][T10176] veth1: left allmulticast mode
[ 1325.769636][T10176] veth2: left allmulticast mode
[ 1325.769893][T10176] veth3: left allmulticast mode