[ 1929.922866][T11518] 
[ 1929.922999][T11518] =============================
[ 1929.923156][T11518] WARNING: suspicious RCU usage
[ 1929.923317][T11518] 6.12.0-rc6-virtme #1 Not tainted
[ 1929.924339][T11518] -----------------------------
[ 1929.924600][T11518] net/ipv6/ip6mr.c:132 RCU-list traversed in non-reader section!!
[ 1929.924822][T11518] 
[ 1929.924822][T11518] other info that might help us debug this:
[ 1929.924822][T11518] 
[ 1929.925189][T11518] 
[ 1929.925189][T11518] rcu_scheduler_active = 2, debug_locks = 1
[ 1929.925422][T11518] no locks held by smcrouted/11518.
[ 1929.925677][T11518] 
[ 1929.925677][T11518] stack backtrace:
[ 1929.925872][T11518] CPU: 2 UID: 0 PID: 11518 Comm: smcrouted Not tainted 6.12.0-rc6-virtme #1
[ 1929.926153][T11518] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 1929.926496][T11518] Call Trace:
[ 1929.926617][T11518]  <TASK>
[ 1929.926707][T11518]  dump_stack_lvl+0xb0/0xd0
[ 1929.926880][T11518]  lockdep_rcu_suspicious+0x1ea/0x280
[ 1929.927042][T11518]  ip6mr_get_table+0x142/0x190
[ 1929.927207][T11518]  ip6_mroute_setsockopt+0x185/0x12d0
[ 1929.927367][T11518]  ? __pfx_ip6_mroute_setsockopt+0x10/0x10
[ 1929.927574][T11518]  ? __lock_release+0x103/0x460
[ 1929.927727][T11518]  ? __might_fault+0x11b/0x170
[ 1929.927882][T11518]  ? trace_lock_acquire+0x14d/0x1f0
[ 1929.928043][T11518]  ? __might_fault+0xc3/0x170
[ 1929.928192][T11518]  ? lock_acquire+0x32/0xc0
[ 1929.928341][T11518]  ? __might_fault+0xc3/0x170
[ 1929.928501][T11518]  ? __might_fault+0x11b/0x170
[ 1929.928657][T11518]  do_ipv6_setsockopt+0x705/0x34e0
[ 1929.928808][T11518]  ? __lock_release+0xe0/0x460
[ 1929.928965][T11518]  ? __pfx_do_ipv6_setsockopt+0x10/0x10
[ 1929.929113][T11518]  ? __pfx_lock_acquire.part.0+0x10/0x10
[ 1929.929277][T11518]  ? rcu_read_lock_any_held+0x43/0xb0
[ 1929.929429][T11518]  ? validate_chain+0x1fe/0xae0
[ 1929.929593][T11518]  ? is_bpf_text_address+0x67/0x120
[ 1929.929759][T11518]  ? __pfx_validate_chain+0x10/0x10
[ 1929.929914][T11518]  ? hlock_class+0x4e/0x130
[ 1929.930069][T11518]  ? mark_lock+0x38/0x3e0
[ 1929.930190][T11518]  ? __lock_acquire+0xb3f/0x1580
[ 1929.930361][T11518]  ? find_held_lock+0x2c/0x110
[ 1929.930523][T11518]  ? ipv6_setsockopt+0x7f/0xe0
[ 1929.930672][T11518]  ipv6_setsockopt+0x7f/0xe0
[ 1929.930836][T11518]  rawv6_setsockopt+0xb7/0x550
[ 1929.930999][T11518]  ? __pfx_rawv6_setsockopt+0x10/0x10
[ 1929.931156][T11518]  ? __lock_acquire+0xb3f/0x1580
[ 1929.931308][T11518]  ? kfree+0x2d/0x340
[ 1929.931429][T11518]  do_sock_setsockopt+0x149/0x3a0
[ 1929.931586][T11518]  ? __pfx_do_sock_setsockopt+0x10/0x10
[ 1929.931741][T11518]  ? __lock_release+0x103/0x460
[ 1929.931893][T11518]  ? fd_install+0x1d1/0x5a0
[ 1929.932053][T11518]  ? trace_lock_acquire+0x14d/0x1f0
[ 1929.932206][T11518]  ? fdget+0x52/0x1e0
[ 1929.932325][T11518]  __sys_setsockopt+0x104/0x1a0
[ 1929.932483][T11518]  ? __pfx___sys_setsockopt+0x10/0x10
[ 1929.932634][T11518]  ? __sys_socket+0x168/0x1e0
[ 1929.932788][T11518]  ? __pfx___sys_socket+0x10/0x10
[ 1929.932951][T11518]  __x64_sys_setsockopt+0xbd/0x160
[ 1929.933113][T11518]  ? lockdep_hardirqs_on_prepare+0x275/0x410
[ 1929.933304][T11518]  do_syscall_64+0xc1/0x1d0
[ 1929.933469][T11518]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 1929.933671][T11518] RIP: 0033:0x7f0d57b8d91e
[ 1929.933831][T11518] 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
[ 1929.934382][T11518] RSP: 002b:00007ffede3cc638 EFLAGS: 00000246 ORIG_RAX: 0000000000000036
[ 1929.934623][T11518] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f0d57b8d91e
[ 1929.934852][T11518] RDX: 00000000000000c8 RSI: 0000000000000029 RDI: 0000000000000008
[ 1929.935090][T11518] RBP: 0000000000000008 R08: 0000000000000004 R09: 0000000000000000
[ 1929.935323][T11518] R10: 00007ffede3cc65c R11: 0000000000000246 R12: 0000000000000000
[ 1929.935555][T11518] R13: 0000000000402650 R14: 0000000000411dd8 R15: 00007f0d57c92000
[ 1929.935795][T11518]  </TASK>
[ 1929.941496][T11518] veth0: entered allmulticast mode
[ 1929.942077][T11518] veth1: entered allmulticast mode
[ 1929.942466][T11518] veth2: entered allmulticast mode
[ 1929.942820][T11518] veth3: entered allmulticast mode
[ 1929.943183][T11518] veth4: entered allmulticast mode
[ 1929.943534][T11518] veth5: entered allmulticast mode
[ 1976.433199][T11518] veth0: left allmulticast mode
[ 1976.433534][T11518] veth1: left allmulticast mode
[ 1976.433792][T11518] veth2: left allmulticast mode
[ 1976.434040][T11518] veth3: left allmulticast mode
[ 1976.434284][T11518] veth4: left allmulticast mode
[ 1976.434544][T11518] veth5: left allmulticast mode