[ 1274.295988][T17344] 
[ 1274.296183][T17344] =============================
[ 1274.296382][T17344] WARNING: suspicious RCU usage
[ 1274.296574][T17344] 6.12.0-rc6-virtme #1 Not tainted
[ 1274.296763][T17344] -----------------------------
[ 1274.297566][T17344] net/ipv6/ip6mr.c:132 RCU-list traversed in non-reader section!!
[ 1274.297847][T17344] 
[ 1274.297847][T17344] other info that might help us debug this:
[ 1274.297847][T17344] 
[ 1274.298225][T17344] 
[ 1274.298225][T17344] rcu_scheduler_active = 2, debug_locks = 1
[ 1274.298502][T17344] no locks held by smcrouted/17344.
[ 1274.298696][T17344] 
[ 1274.298696][T17344] stack backtrace:
[ 1274.298940][T17344] CPU: 2 UID: 0 PID: 17344 Comm: smcrouted Not tainted 6.12.0-rc6-virtme #1
[ 1274.299257][T17344] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 1274.299480][T17344] Call Trace:
[ 1274.299613][T17344]  <TASK>
[ 1274.299715][T17344]  dump_stack_lvl+0xb0/0xd0
[ 1274.299912][T17344]  lockdep_rcu_suspicious+0x1ea/0x280
[ 1274.300101][T17344]  ip6mr_get_table+0x142/0x190
[ 1274.300282][T17344]  ip6_mroute_setsockopt+0x185/0x12d0
[ 1274.300458][T17344]  ? __pfx_ip6_mroute_setsockopt+0x10/0x10
[ 1274.300684][T17344]  ? __lock_release+0x103/0x460
[ 1274.300856][T17344]  ? __might_fault+0x11b/0x170
[ 1274.301033][T17344]  ? trace_lock_acquire+0x14d/0x1f0
[ 1274.301213][T17344]  ? __might_fault+0xc3/0x170
[ 1274.301385][T17344]  ? lock_acquire+0x32/0xc0
[ 1274.301555][T17344]  ? __might_fault+0xc3/0x170
[ 1274.301726][T17344]  ? __might_fault+0x11b/0x170
[ 1274.301900][T17344]  do_ipv6_setsockopt+0x705/0x34e0
[ 1274.302073][T17344]  ? __lock_release+0xe0/0x460
[ 1274.302249][T17344]  ? __pfx_do_ipv6_setsockopt+0x10/0x10
[ 1274.302416][T17344]  ? __pfx_lock_acquire.part.0+0x10/0x10
[ 1274.302587][T17344]  ? rcu_read_lock_any_held+0x43/0xb0
[ 1274.302757][T17344]  ? validate_chain+0x1fe/0xae0
[ 1274.302931][T17344]  ? is_bpf_text_address+0x67/0x120
[ 1274.303106][T17344]  ? __pfx_validate_chain+0x10/0x10
[ 1274.303275][T17344]  ? hlock_class+0x4e/0x130
[ 1274.303456][T17344]  ? mark_lock+0x38/0x3e0
[ 1274.303592][T17344]  ? __lock_acquire+0xb3f/0x1580
[ 1274.303768][T17344]  ? queued_spin_lock_slowpath+0xee/0x970
[ 1274.303941][T17344]  ? __pfx_queued_spin_lock_slowpath+0x10/0x10
[ 1274.304160][T17344]  ? find_held_lock+0x2c/0x110
[ 1274.304336][T17344]  ? ipv6_setsockopt+0x7f/0xe0
[ 1274.304506][T17344]  ipv6_setsockopt+0x7f/0xe0
[ 1274.304678][T17344]  rawv6_setsockopt+0xb7/0x550
[ 1274.304852][T17344]  ? __pfx_rawv6_setsockopt+0x10/0x10
[ 1274.305021][T17344]  ? __lock_acquire+0xb3f/0x1580
[ 1274.305194][T17344]  ? kfree+0x2d/0x340
[ 1274.305334][T17344]  do_sock_setsockopt+0x149/0x3a0
[ 1274.305508][T17344]  ? __pfx_do_sock_setsockopt+0x10/0x10
[ 1274.305680][T17344]  ? __lock_release+0x103/0x460
[ 1274.305852][T17344]  ? fd_install+0x1d1/0x5a0
[ 1274.306026][T17344]  ? trace_lock_acquire+0x14d/0x1f0
[ 1274.306197][T17344]  ? fdget+0x52/0x1e0
[ 1274.306332][T17344]  __sys_setsockopt+0x104/0x1a0
[ 1274.306506][T17344]  ? __pfx___sys_setsockopt+0x10/0x10
[ 1274.306682][T17344]  ? __sys_socket+0x168/0x1e0
[ 1274.306850][T17344]  ? __pfx___sys_socket+0x10/0x10
[ 1274.307019][T17344]  ? do_user_addr_fault+0x374/0xe30
[ 1274.307195][T17344]  __x64_sys_setsockopt+0xbd/0x160
[ 1274.307363][T17344]  ? lockdep_hardirqs_on_prepare+0x275/0x410
[ 1274.307570][T17344]  do_syscall_64+0xc1/0x1d0
[ 1274.307743][T17344]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 1274.307956][T17344] RIP: 0033:0x7f3c9f50f91e
[ 1274.308143][T17344] 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
[ 1274.308736][T17344] RSP: 002b:00007ffd69c61728 EFLAGS: 00000246 ORIG_RAX: 0000000000000036
[ 1274.308998][T17344] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f3c9f50f91e
[ 1274.309250][T17344] RDX: 00000000000000c8 RSI: 0000000000000029 RDI: 0000000000000008
[ 1274.309504][T17344] RBP: 0000000000000008 R08: 0000000000000004 R09: 0000000000000000
[ 1274.309761][T17344] R10: 00007ffd69c6174c R11: 0000000000000246 R12: 0000000000000000
[ 1274.310019][T17344] R13: 0000000000402650 R14: 0000000000411dd8 R15: 00007f3c9f614000
[ 1274.310286][T17344]  </TASK>
[ 1274.323289][T17344] veth0: entered allmulticast mode
[ 1274.324736][T17344] veth1: entered allmulticast mode
[ 1274.325683][T17344] veth2: entered allmulticast mode
[ 1274.326386][T17344] veth3: entered allmulticast mode
[ 1274.327155][T17344] veth4: entered allmulticast mode
[ 1274.328453][T17344] veth5: entered allmulticast mode
[ 1285.453454][T17431] GACT probability NOT on
[ 1297.750336][T17679] ip (17679) used greatest stack depth: 24280 bytes left
[ 1301.737935][T17344] veth0: left allmulticast mode
[ 1301.738274][T17344] veth1: left allmulticast mode
[ 1301.738536][T17344] veth2: left allmulticast mode
[ 1301.738785][T17344] veth3: left allmulticast mode
[ 1301.739066][T17344] veth4: left allmulticast mode
[ 1301.739320][T17344] veth5: left allmulticast mode