[ 1301.900970][ T8004] 
[ 1301.901149][ T8004] =============================
[ 1301.901349][ T8004] WARNING: suspicious RCU usage
[ 1301.901533][ T8004] 6.12.0-virtme #1 Not tainted
[ 1301.901786][ T8004] -----------------------------
[ 1301.901966][ T8004] net/ipv6/ip6mr.c:132 RCU-list traversed in non-reader section!!
[ 1301.902218][ T8004] 
[ 1301.902218][ T8004] other info that might help us debug this:
[ 1301.902218][ T8004] 
[ 1301.902544][ T8004] 
[ 1301.902544][ T8004] rcu_scheduler_active = 2, debug_locks = 1
[ 1301.902815][ T8004] no locks held by smcrouted/8004.
[ 1301.902997][ T8004] 
[ 1301.902997][ T8004] stack backtrace:
[ 1301.903218][ T8004] CPU: 2 UID: 0 PID: 8004 Comm: smcrouted Not tainted 6.12.0-virtme #1
[ 1301.903459][ T8004] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 1301.903661][ T8004] Call Trace:
[ 1301.903791][ T8004]  <TASK>
[ 1301.903876][ T8004]  dump_stack_lvl+0xb0/0xd0
[ 1301.904050][ T8004]  lockdep_rcu_suspicious+0x1ea/0x280
[ 1301.904221][ T8004]  ip6mr_get_table+0x142/0x190
[ 1301.904382][ T8004]  ip6_mroute_setsockopt+0x185/0x12d0
[ 1301.904545][ T8004]  ? __pfx_ip6_mroute_setsockopt+0x10/0x10
[ 1301.904750][ T8004]  ? __lock_release+0x103/0x460
[ 1301.904932][ T8004]  ? __might_fault+0x11b/0x170
[ 1301.905095][ T8004]  ? trace_lock_acquire+0x14d/0x1f0
[ 1301.905255][ T8004]  ? __might_fault+0xc3/0x170
[ 1301.905424][ T8004]  ? lock_acquire+0x32/0xc0
[ 1301.905594][ T8004]  ? __might_fault+0xc3/0x170
[ 1301.905755][ T8004]  ? __might_fault+0x11b/0x170
[ 1301.905916][ T8004]  do_ipv6_setsockopt+0x705/0x34e0
[ 1301.906080][ T8004]  ? validate_chain+0x160/0xae0
[ 1301.906240][ T8004]  ? __pfx_do_ipv6_setsockopt+0x10/0x10
[ 1301.906400][ T8004]  ? __pfx_validate_chain+0x10/0x10
[ 1301.906559][ T8004]  ? hlock_class+0x4e/0x130
[ 1301.906719][ T8004]  ? mark_lock+0x38/0x3e0
[ 1301.906848][ T8004]  ? __lock_acquire+0xb9a/0x1680
[ 1301.907018][ T8004]  ? find_held_lock+0x2c/0x110
[ 1301.907179][ T8004]  ? __lock_release+0x103/0x460
[ 1301.907338][ T8004]  ? __create_object+0x5e/0xb0
[ 1301.907503][ T8004]  ? __pfx___lock_release+0x10/0x10
[ 1301.907657][ T8004]  ? __pfx_validate_chain+0x10/0x10
[ 1301.907816][ T8004]  ? hlock_class+0x4e/0x130
[ 1301.907974][ T8004]  ? mark_lock+0x38/0x3e0
[ 1301.908099][ T8004]  ? ipv6_setsockopt+0x7f/0xe0
[ 1301.908259][ T8004]  ipv6_setsockopt+0x7f/0xe0
[ 1301.908414][ T8004]  rawv6_setsockopt+0xb7/0x550
[ 1301.908568][ T8004]  ? __pfx_rawv6_setsockopt+0x10/0x10
[ 1301.908722][ T8004]  ? find_held_lock+0x2c/0x110
[ 1301.908887][ T8004]  ? kfree+0x2d/0x340
[ 1301.909001][ T8004]  ? __lock_release+0x103/0x460
[ 1301.909154][ T8004]  ? fd_install+0x1d1/0x5a0
[ 1301.909313][ T8004]  do_sock_setsockopt+0x149/0x3a0
[ 1301.909473][ T8004]  ? __pfx_do_sock_setsockopt+0x10/0x10
[ 1301.909664][ T8004]  __sys_setsockopt+0xec/0x160
[ 1301.909826][ T8004]  __x64_sys_setsockopt+0xbd/0x160
[ 1301.909981][ T8004]  ? lockdep_hardirqs_on_prepare+0x275/0x410
[ 1301.910177][ T8004]  do_syscall_64+0xc1/0x1d0
[ 1301.910335][ T8004]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 1301.910531][ T8004] RIP: 0033:0x7fd6612e591e
[ 1301.910699][ T8004] 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
[ 1301.911240][ T8004] RSP: 002b:00007fffc722d528 EFLAGS: 00000246 ORIG_RAX: 0000000000000036
[ 1301.911534][ T8004] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fd6612e591e
[ 1301.911790][ T8004] RDX: 00000000000000c8 RSI: 0000000000000029 RDI: 0000000000000008
[ 1301.912041][ T8004] RBP: 0000000000000008 R08: 0000000000000004 R09: 0000000000000000
[ 1301.912321][ T8004] R10: 00007fffc722d54c R11: 0000000000000246 R12: 0000000000000000
[ 1301.912583][ T8004] R13: 0000000000402650 R14: 0000000000411dd8 R15: 00007fd6613ea000
[ 1301.912851][ T8004]  </TASK>
[ 1301.923292][ T8004] veth0: entered allmulticast mode
[ 1301.925120][ T8004] veth1: entered allmulticast mode
[ 1301.925487][ T8004] veth2: entered allmulticast mode
[ 1301.925880][ T8004] veth3: entered allmulticast mode
[ 1320.815721][ T8004] veth0: left allmulticast mode
[ 1320.816161][ T8004] veth1: left allmulticast mode
[ 1320.816435][ T8004] veth2: left allmulticast mode
[ 1320.816747][ T8004] veth3: left allmulticast mode