[ 1264.052232][T13199] 
[ 1264.052582][T13199] =============================
[ 1264.052751][T13199] WARNING: suspicious RCU usage
[ 1264.052922][T13199] 6.12.0-rc7-virtme #1 Not tainted
[ 1264.053088][T13199] -----------------------------
[ 1264.053252][T13199] net/ipv6/ip6mr.c:132 RCU-list traversed in non-reader section!!
[ 1264.053493][T13199] 
[ 1264.053493][T13199] other info that might help us debug this:
[ 1264.053493][T13199] 
[ 1264.053795][T13199] 
[ 1264.053795][T13199] rcu_scheduler_active = 2, debug_locks = 1
[ 1264.054031][T13199] no locks held by smcrouted/13199.
[ 1264.054197][T13199] 
[ 1264.054197][T13199] stack backtrace:
[ 1264.054402][T13199] CPU: 3 UID: 0 PID: 13199 Comm: smcrouted Not tainted 6.12.0-rc7-virtme #1
[ 1264.054678][T13199] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 1264.054904][T13199] Call Trace:
[ 1264.055031][T13199]  <TASK>
[ 1264.055119][T13199]  dump_stack_lvl+0xb0/0xd0
[ 1264.055299][T13199]  lockdep_rcu_suspicious+0x1ea/0x280
[ 1264.055467][T13199]  ip6mr_get_table+0x142/0x190
[ 1264.055628][T13199]  ip6_mroute_setsockopt+0x185/0x12d0
[ 1264.055796][T13199]  ? __pfx_ip6_mroute_setsockopt+0x10/0x10
[ 1264.056005][T13199]  ? __lock_release+0x103/0x460
[ 1264.056162][T13199]  ? __might_fault+0x11b/0x170
[ 1264.056325][T13199]  ? trace_lock_acquire+0x14d/0x1f0
[ 1264.056493][T13199]  ? __might_fault+0xc3/0x170
[ 1264.056654][T13199]  ? lock_acquire+0x32/0xc0
[ 1264.056814][T13199]  ? __might_fault+0xc3/0x170
[ 1264.056974][T13199]  ? __might_fault+0x11b/0x170
[ 1264.057142][T13199]  do_ipv6_setsockopt+0x705/0x34e0
[ 1264.057303][T13199]  ? __lock_release+0x10/0x460
[ 1264.057464][T13199]  ? __pfx_do_ipv6_setsockopt+0x10/0x10
[ 1264.057623][T13199]  ? __pfx_lock_acquire.part.0+0x10/0x10
[ 1264.057795][T13199]  ? rcu_read_lock_any_held+0x43/0xb0
[ 1264.057967][T13199]  ? validate_chain+0x1fe/0xae0
[ 1264.058129][T13199]  ? is_bpf_text_address+0x67/0x120
[ 1264.058296][T13199]  ? __pfx_validate_chain+0x10/0x10
[ 1264.058457][T13199]  ? hlock_class+0x4e/0x130
[ 1264.058614][T13199]  ? mark_lock+0x38/0x3e0
[ 1264.058740][T13199]  ? __lock_acquire+0xb3f/0x1580
[ 1264.058912][T13199]  ? find_held_lock+0x2c/0x110
[ 1264.059080][T13199]  ? ipv6_setsockopt+0x7f/0xe0
[ 1264.059239][T13199]  ipv6_setsockopt+0x7f/0xe0
[ 1264.059406][T13199]  rawv6_setsockopt+0xb7/0x550
[ 1264.059571][T13199]  ? __pfx_rawv6_setsockopt+0x10/0x10
[ 1264.059726][T13199]  ? __lock_acquire+0xb3f/0x1580
[ 1264.059891][T13199]  ? kfree+0x2d/0x340
[ 1264.060017][T13199]  do_sock_setsockopt+0x149/0x3a0
[ 1264.060180][T13199]  ? __pfx_do_sock_setsockopt+0x10/0x10
[ 1264.060343][T13199]  ? __lock_release+0x103/0x460
[ 1264.060503][T13199]  ? fd_install+0x1d1/0x5a0
[ 1264.060671][T13199]  ? trace_lock_acquire+0x14d/0x1f0
[ 1264.060837][T13199]  ? fdget+0x52/0x1e0
[ 1264.060964][T13199]  __sys_setsockopt+0x104/0x1a0
[ 1264.061153][T13199]  ? __pfx___sys_setsockopt+0x10/0x10
[ 1264.061313][T13199]  ? __sys_socket+0x168/0x1e0
[ 1264.061470][T13199]  ? __pfx___sys_socket+0x10/0x10
[ 1264.061642][T13199]  ? do_user_addr_fault+0x374/0xe30
[ 1264.061812][T13199]  __x64_sys_setsockopt+0xbd/0x160
[ 1264.061977][T13199]  ? lockdep_hardirqs_on_prepare+0x275/0x410
[ 1264.062173][T13199]  do_syscall_64+0xc1/0x1d0
[ 1264.062339][T13199]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 1264.062541][T13199] RIP: 0033:0x7f5d45b3291e
[ 1264.062718][T13199] 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
[ 1264.063277][T13199] RSP: 002b:00007ffe2e39f6d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000036
[ 1264.063523][T13199] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f5d45b3291e
[ 1264.063763][T13199] RDX: 00000000000000c8 RSI: 0000000000000029 RDI: 0000000000000008
[ 1264.064000][T13199] RBP: 0000000000000008 R08: 0000000000000004 R09: 0000000000000000
[ 1264.064239][T13199] R10: 00007ffe2e39f6fc R11: 0000000000000246 R12: 0000000000000000
[ 1264.064476][T13199] R13: 0000000000402650 R14: 0000000000411dd8 R15: 00007f5d45c37000
[ 1264.064732][T13199]  </TASK>
[ 1264.069528][T13199] veth0: entered allmulticast mode
[ 1264.070122][T13199] veth1: entered allmulticast mode
[ 1264.070473][T13199] veth2: entered allmulticast mode
[ 1264.070806][T13199] veth3: entered allmulticast mode
[ 1264.071129][T13199] veth4: entered allmulticast mode
[ 1264.072999][T13199] veth5: entered allmulticast mode
[ 1291.328406][T13199] veth0: left allmulticast mode
[ 1291.328797][T13199] veth1: left allmulticast mode
[ 1291.329042][T13199] veth2: left allmulticast mode
[ 1291.329290][T13199] veth3: left allmulticast mode
[ 1291.329552][T13199] veth4: left allmulticast mode
[ 1291.329799][T13199] veth5: left allmulticast mode