[ 1261.952867][ T4419] 
[ 1261.953058][ T4419] =============================
[ 1261.953337][ T4419] WARNING: suspicious RCU usage
[ 1261.953599][ T4419] 6.12.0-rc7-virtme #1 Not tainted
[ 1261.953845][ T4419] -----------------------------
[ 1261.954099][ T4419] net/ipv6/ip6mr.c:132 RCU-list traversed in non-reader section!!
[ 1261.954484][ T4419] 
[ 1261.954484][ T4419] other info that might help us debug this:
[ 1261.954484][ T4419] 
[ 1261.954994][ T4419] 
[ 1261.954994][ T4419] rcu_scheduler_active = 2, debug_locks = 1
[ 1261.955386][ T4419] no locks held by smcrouted/4419.
[ 1261.955633][ T4419] 
[ 1261.955633][ T4419] stack backtrace:
[ 1261.955948][ T4419] CPU: 0 UID: 0 PID: 4419 Comm: smcrouted Not tainted 6.12.0-rc7-virtme #1
[ 1261.956395][ T4419] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 1261.956769][ T4419] Call Trace:
[ 1261.956967][ T4419]  <TASK>
[ 1261.957104][ T4419]  dump_stack_lvl+0xb0/0xd0
[ 1261.957368][ T4419]  lockdep_rcu_suspicious+0x1ea/0x280
[ 1261.957625][ T4419]  ip6mr_get_table+0x142/0x190
[ 1261.957887][ T4419]  ip6_mroute_setsockopt+0x185/0x12d0
[ 1261.958163][ T4419]  ? __pfx_ip6_mroute_setsockopt+0x10/0x10
[ 1261.958497][ T4419]  ? __lock_release+0x103/0x460
[ 1261.958757][ T4419]  ? __might_fault+0x11b/0x170
[ 1261.959022][ T4419]  ? trace_lock_acquire+0x14d/0x1f0
[ 1261.959313][ T4419]  ? __might_fault+0xc3/0x170
[ 1261.959566][ T4419]  ? lock_acquire+0x32/0xc0
[ 1261.959825][ T4419]  ? __might_fault+0xc3/0x170
[ 1261.960097][ T4419]  ? __might_fault+0x11b/0x170
[ 1261.960379][ T4419]  do_ipv6_setsockopt+0x705/0x34e0
[ 1261.960641][ T4419]  ? __lock_release+0x10/0x460
[ 1261.960913][ T4419]  ? __pfx_do_ipv6_setsockopt+0x10/0x10
[ 1261.961177][ T4419]  ? __pfx_lock_acquire.part.0+0x10/0x10
[ 1261.961450][ T4419]  ? rcu_read_lock_any_held+0x43/0xb0
[ 1261.961710][ T4419]  ? validate_chain+0x1fe/0xae0
[ 1261.961982][ T4419]  ? is_bpf_text_address+0x67/0x120
[ 1261.962263][ T4419]  ? __pfx_validate_chain+0x10/0x10
[ 1261.962526][ T4419]  ? hlock_class+0x4e/0x130
[ 1261.962792][ T4419]  ? mark_lock+0x38/0x3e0
[ 1261.963014][ T4419]  ? __lock_acquire+0xb3f/0x1580
[ 1261.963285][ T4419]  ? queued_spin_lock_slowpath+0xee/0x970
[ 1261.963552][ T4419]  ? __pfx_queued_spin_lock_slowpath+0x10/0x10
[ 1261.963874][ T4419]  ? find_held_lock+0x2c/0x110
[ 1261.964215][ T4419]  ? ipv6_setsockopt+0x7f/0xe0
[ 1261.964469][ T4419]  ipv6_setsockopt+0x7f/0xe0
[ 1261.964736][ T4419]  rawv6_setsockopt+0xb7/0x550
[ 1261.965008][ T4419]  ? __pfx_rawv6_setsockopt+0x10/0x10
[ 1261.965278][ T4419]  ? __lock_acquire+0xb3f/0x1580
[ 1261.965550][ T4419]  ? kfree+0x2d/0x340
[ 1261.965786][ T4419]  do_sock_setsockopt+0x149/0x3a0
[ 1261.966064][ T4419]  ? __pfx_do_sock_setsockopt+0x10/0x10
[ 1261.966321][ T4419]  ? __lock_release+0x103/0x460
[ 1261.966601][ T4419]  ? fd_install+0x1d1/0x5a0
[ 1261.966876][ T4419]  ? trace_lock_acquire+0x14d/0x1f0
[ 1261.967133][ T4419]  ? fdget+0x52/0x1e0
[ 1261.967343][ T4419]  __sys_setsockopt+0x104/0x1a0
[ 1261.967626][ T4419]  ? __pfx___sys_setsockopt+0x10/0x10
[ 1261.967892][ T4419]  ? __sys_socket+0x168/0x1e0
[ 1261.968169][ T4419]  ? __pfx___sys_socket+0x10/0x10
[ 1261.968435][ T4419]  ? do_user_addr_fault+0x374/0xe30
[ 1261.968714][ T4419]  __x64_sys_setsockopt+0xbd/0x160
[ 1261.968982][ T4419]  ? lockdep_hardirqs_on_prepare+0x275/0x410
[ 1261.969332][ T4419]  do_syscall_64+0xc1/0x1d0
[ 1261.969602][ T4419]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 1261.969933][ T4419] RIP: 0033:0x7fa8412a691e
[ 1261.970216][ T4419] 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
[ 1261.971154][ T4419] RSP: 002b:00007ffe5a34c898 EFLAGS: 00000246 ORIG_RAX: 0000000000000036
[ 1261.971571][ T4419] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa8412a691e
[ 1261.971981][ T4419] RDX: 00000000000000c8 RSI: 0000000000000029 RDI: 0000000000000008
[ 1261.972375][ T4419] RBP: 0000000000000008 R08: 0000000000000004 R09: 0000000030090010
[ 1261.972777][ T4419] R10: 00007ffe5a34c8bc R11: 0000000000000246 R12: 0000000000000000
[ 1261.973181][ T4419] R13: 0000000000402650 R14: 0000000000411dd8 R15: 00007fa8413ab000
[ 1261.973613][ T4419]  </TASK>
[ 1261.979433][ T4419] veth0: entered allmulticast mode
[ 1261.980297][ T4419] veth1: entered allmulticast mode
[ 1261.980860][ T4419] veth2: entered allmulticast mode
[ 1261.997236][ T4419] veth3: entered allmulticast mode
[ 1261.998565][ T4419] veth4: entered allmulticast mode
[ 1261.999079][ T4419] veth5: entered allmulticast mode
[ 1272.995708][ T4505] GACT probability NOT on
[ 1289.055200][ T4419] veth0: left allmulticast mode
[ 1289.055517][ T4419] veth1: left allmulticast mode
[ 1289.055746][ T4419] veth2: left allmulticast mode
[ 1289.055968][ T4419] veth3: left allmulticast mode
[ 1289.056205][ T4419] veth4: left allmulticast mode
[ 1289.056432][ T4419] veth5: left allmulticast mode