[ 1281.967556][T11666] 
[ 1281.967705][T11666] =============================
[ 1281.967882][T11666] WARNING: suspicious RCU usage
[ 1281.968052][T11666] 6.12.0-rc7-virtme #1 Not tainted
[ 1281.968237][T11666] -----------------------------
[ 1281.968396][T11666] net/ipv6/ip6mr.c:132 RCU-list traversed in non-reader section!!
[ 1281.968640][T11666] 
[ 1281.968640][T11666] other info that might help us debug this:
[ 1281.968640][T11666] 
[ 1281.968992][T11666] 
[ 1281.968992][T11666] rcu_scheduler_active = 2, debug_locks = 1
[ 1281.969269][T11666] no locks held by smcrouted/11666.
[ 1281.969448][T11666] 
[ 1281.969448][T11666] stack backtrace:
[ 1281.969669][T11666] CPU: 3 UID: 0 PID: 11666 Comm: smcrouted Not tainted 6.12.0-rc7-virtme #1
[ 1281.969980][T11666] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 1281.970208][T11666] Call Trace:
[ 1281.970351][T11666]  <TASK>
[ 1281.970449][T11666]  dump_stack_lvl+0xb0/0xd0
[ 1281.970643][T11666]  lockdep_rcu_suspicious+0x1ea/0x280
[ 1281.970808][T11666]  ip6mr_get_table+0x142/0x190
[ 1281.970973][T11666]  ip6_mroute_setsockopt+0x185/0x12d0
[ 1281.971144][T11666]  ? __pfx_ip6_mroute_setsockopt+0x10/0x10
[ 1281.971369][T11666]  ? __lock_release+0x103/0x460
[ 1281.971533][T11666]  ? __might_fault+0x11b/0x170
[ 1281.971703][T11666]  ? trace_lock_acquire+0x14d/0x1f0
[ 1281.971873][T11666]  ? __might_fault+0xc3/0x170
[ 1281.972037][T11666]  ? lock_acquire+0x32/0xc0
[ 1281.972216][T11666]  ? __might_fault+0xc3/0x170
[ 1281.972381][T11666]  ? __might_fault+0x11b/0x170
[ 1281.972563][T11666]  do_ipv6_setsockopt+0x705/0x34e0
[ 1281.972740][T11666]  ? __lock_release+0x10/0x460
[ 1281.972913][T11666]  ? __pfx_do_ipv6_setsockopt+0x10/0x10
[ 1281.973074][T11666]  ? __pfx_lock_acquire.part.0+0x10/0x10
[ 1281.973246][T11666]  ? rcu_read_lock_any_held+0x43/0xb0
[ 1281.973427][T11666]  ? validate_chain+0x1fe/0xae0
[ 1281.973589][T11666]  ? is_bpf_text_address+0x67/0x120
[ 1281.973791][T11666]  ? __pfx_validate_chain+0x10/0x10
[ 1281.973974][T11666]  ? hlock_class+0x4e/0x130
[ 1281.974163][T11666]  ? mark_lock+0x38/0x3e0
[ 1281.974315][T11666]  ? __lock_acquire+0xb3f/0x1580
[ 1281.974492][T11666]  ? find_held_lock+0x2c/0x110
[ 1281.974665][T11666]  ? ipv6_setsockopt+0x7f/0xe0
[ 1281.974821][T11666]  ipv6_setsockopt+0x7f/0xe0
[ 1281.974980][T11666]  rawv6_setsockopt+0xb7/0x550
[ 1281.975146][T11666]  ? __pfx_rawv6_setsockopt+0x10/0x10
[ 1281.975313][T11666]  ? __lock_acquire+0xb3f/0x1580
[ 1281.975472][T11666]  ? kfree+0x2d/0x340
[ 1281.975598][T11666]  do_sock_setsockopt+0x149/0x3a0
[ 1281.975762][T11666]  ? __pfx_do_sock_setsockopt+0x10/0x10
[ 1281.975951][T11666]  ? __lock_release+0x103/0x460
[ 1281.976106][T11666]  ? fd_install+0x1d1/0x5a0
[ 1281.976281][T11666]  ? trace_lock_acquire+0x14d/0x1f0
[ 1281.976445][T11666]  ? fdget+0x52/0x1e0
[ 1281.976582][T11666]  __sys_setsockopt+0x104/0x1a0
[ 1281.976766][T11666]  ? __pfx___sys_setsockopt+0x10/0x10
[ 1281.976938][T11666]  ? __sys_socket+0x168/0x1e0
[ 1281.977129][T11666]  ? __pfx___sys_socket+0x10/0x10
[ 1281.977313][T11666]  ? do_user_addr_fault+0x374/0xe30
[ 1281.977501][T11666]  __x64_sys_setsockopt+0xbd/0x160
[ 1281.977681][T11666]  ? lockdep_hardirqs_on_prepare+0x275/0x410
[ 1281.977904][T11666]  do_syscall_64+0xc1/0x1d0
[ 1281.978075][T11666]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 1281.978305][T11666] RIP: 0033:0x7f015d0bc91e
[ 1281.978487][T11666] 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
[ 1281.979071][T11666] RSP: 002b:00007ffc8881bf28 EFLAGS: 00000246 ORIG_RAX: 0000000000000036
[ 1281.979325][T11666] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f015d0bc91e
[ 1281.979594][T11666] RDX: 00000000000000c8 RSI: 0000000000000029 RDI: 0000000000000008
[ 1281.979841][T11666] RBP: 0000000000000008 R08: 0000000000000004 R09: 0000000000000000
[ 1281.980123][T11666] R10: 00007ffc8881bf4c R11: 0000000000000246 R12: 0000000000000000
[ 1281.980392][T11666] R13: 0000000000402650 R14: 0000000000411dd8 R15: 00007f015d1c1000
[ 1281.980661][T11666]  </TASK>
[ 1281.983673][T11666] veth0: entered allmulticast mode
[ 1281.984277][T11666] veth1: entered allmulticast mode
[ 1281.984615][T11666] veth2: entered allmulticast mode
[ 1281.984959][T11666] veth3: entered allmulticast mode
[ 1301.219980][T11666] veth0: left allmulticast mode
[ 1301.220522][T11666] veth1: left allmulticast mode
[ 1301.220943][T11666] veth2: left allmulticast mode
[ 1301.221386][T11666] veth3: left allmulticast mode