[ 1709.263434][ T9292] 
[ 1709.263571][ T9292] =============================
[ 1709.263747][ T9292] WARNING: suspicious RCU usage
[ 1709.263935][ T9292] 6.12.0-rc4-virtme #1 Not tainted
[ 1709.264100][ T9292] -----------------------------
[ 1709.264257][ T9292] net/ipv6/ip6mr.c:132 RCU-list traversed in non-reader section!!
[ 1709.264519][ T9292] 
[ 1709.264519][ T9292] other info that might help us debug this:
[ 1709.264519][ T9292] 
[ 1709.264826][ T9292] 
[ 1709.264826][ T9292] rcu_scheduler_active = 2, debug_locks = 1
[ 1709.265093][ T9292] no locks held by smcrouted/9292.
[ 1709.265302][ T9292] 
[ 1709.265302][ T9292] stack backtrace:
[ 1709.265752][ T9292] CPU: 2 UID: 0 PID: 9292 Comm: smcrouted Not tainted 6.12.0-rc4-virtme #1
[ 1709.266035][ T9292] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 1709.266391][ T9292] Call Trace:
[ 1709.266520][ T9292]  <TASK>
[ 1709.266606][ T9292]  dump_stack_lvl+0xb0/0xd0
[ 1709.266778][ T9292]  lockdep_rcu_suspicious+0x1ea/0x280
[ 1709.266940][ T9292]  ip6mr_get_table+0x142/0x190
[ 1709.267103][ T9292]  ip6_mroute_setsockopt+0x185/0x12d0
[ 1709.267269][ T9292]  ? __pfx_ip6_mroute_setsockopt+0x10/0x10
[ 1709.267467][ T9292]  ? find_held_lock+0x2c/0x110
[ 1709.267635][ T9292]  ? __lock_release+0x103/0x460
[ 1709.267794][ T9292]  ? __might_fault+0x11b/0x170
[ 1709.267958][ T9292]  ? __pfx___lock_release+0x10/0x10
[ 1709.268118][ T9292]  ? trace_lock_acquire+0x14d/0x1f0
[ 1709.268302][ T9292]  ? __might_fault+0xc3/0x170
[ 1709.268458][ T9292]  ? lock_acquire+0x32/0xc0
[ 1709.268619][ T9292]  ? __might_fault+0xc3/0x170
[ 1709.268778][ T9292]  ? __might_fault+0x11b/0x170
[ 1709.268942][ T9292]  do_ipv6_setsockopt+0x705/0x34e0
[ 1709.269103][ T9292]  ? __lock_release+0xf0/0x460
[ 1709.269264][ T9292]  ? __pfx_do_ipv6_setsockopt+0x10/0x10
[ 1709.269426][ T9292]  ? __pfx_lock_acquire.part.0+0x10/0x10
[ 1709.269591][ T9292]  ? rcu_read_lock_any_held+0x43/0xb0
[ 1709.269778][ T9292]  ? validate_chain+0x1fe/0xae0
[ 1709.269939][ T9292]  ? is_bpf_text_address+0x67/0x120
[ 1709.270107][ T9292]  ? __pfx_validate_chain+0x10/0x10
[ 1709.270264][ T9292]  ? hlock_class+0x4e/0x130
[ 1709.270422][ T9292]  ? mark_lock+0x38/0x3e0
[ 1709.270547][ T9292]  ? __lock_acquire+0xb3f/0x1580
[ 1709.270724][ T9292]  ? find_held_lock+0x2c/0x110
[ 1709.270900][ T9292]  ? ipv6_setsockopt+0x7f/0xe0
[ 1709.271064][ T9292]  ipv6_setsockopt+0x7f/0xe0
[ 1709.271233][ T9292]  rawv6_setsockopt+0xb7/0x550
[ 1709.271396][ T9292]  ? __pfx_rawv6_setsockopt+0x10/0x10
[ 1709.271559][ T9292]  ? __lock_acquire+0xb3f/0x1580
[ 1709.271721][ T9292]  ? kfree+0x2d/0x340
[ 1709.271850][ T9292]  do_sock_setsockopt+0x149/0x3a0
[ 1709.272012][ T9292]  ? __pfx_do_sock_setsockopt+0x10/0x10
[ 1709.272183][ T9292]  ? __lock_release+0x103/0x460
[ 1709.272344][ T9292]  ? fd_install+0x1d1/0x5a0
[ 1709.272516][ T9292]  ? trace_lock_acquire+0x14d/0x1f0
[ 1709.272681][ T9292]  ? fdget+0x52/0x1e0
[ 1709.272806][ T9292]  __sys_setsockopt+0x104/0x1a0
[ 1709.272974][ T9292]  ? __pfx___sys_setsockopt+0x10/0x10
[ 1709.273128][ T9292]  ? __sys_socket+0x168/0x1e0
[ 1709.273281][ T9292]  ? __pfx___sys_socket+0x10/0x10
[ 1709.273432][ T9292]  __x64_sys_setsockopt+0xbd/0x160
[ 1709.273583][ T9292]  ? lockdep_hardirqs_on_prepare+0x275/0x410
[ 1709.273795][ T9292]  do_syscall_64+0xc1/0x1d0
[ 1709.273946][ T9292]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 1709.274125][ T9292] RIP: 0033:0x7f05bb38d91e
[ 1709.274282][ T9292] 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
[ 1709.274787][ T9292] RSP: 002b:00007fff04d14b18 EFLAGS: 00000246 ORIG_RAX: 0000000000000036
[ 1709.275012][ T9292] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f05bb38d91e
[ 1709.275243][ T9292] RDX: 00000000000000c8 RSI: 0000000000000029 RDI: 0000000000000008
[ 1709.275467][ T9292] RBP: 0000000000000008 R08: 0000000000000004 R09: 0000000000000000
[ 1709.275682][ T9292] R10: 00007fff04d14b3c R11: 0000000000000246 R12: 0000000000000000
[ 1709.275900][ T9292] R13: 0000000000402650 R14: 0000000000411dd8 R15: 00007f05bb492000
[ 1709.276132][ T9292]  </TASK>
[ 1709.285058][ T9292] veth0: entered allmulticast mode
[ 1709.285920][ T9292] veth1: entered allmulticast mode
[ 1709.286452][ T9292] veth2: entered allmulticast mode
[ 1709.287201][ T9292] veth3: entered allmulticast mode
[ 1709.287735][ T9292] veth4: entered allmulticast mode
[ 1709.288262][ T9292] veth5: entered allmulticast mode
[ 1756.547723][ T9292] veth0: left allmulticast mode
[ 1756.548212][ T9292] veth1: left allmulticast mode
[ 1756.548610][ T9292] veth2: left allmulticast mode
[ 1756.549004][ T9292] veth3: left allmulticast mode
[ 1756.549379][ T9292] veth4: left allmulticast mode
[ 1756.549777][ T9292] veth5: left allmulticast mode