[ 1290.340320][ T7895] 
[ 1290.340474][ T7895] =============================
[ 1290.340650][ T7895] WARNING: suspicious RCU usage
[ 1290.340824][ T7895] 6.12.0-rc7-virtme #1 Not tainted
[ 1290.341000][ T7895] -----------------------------
[ 1290.341174][ T7895] net/ipv6/ip6mr.c:132 RCU-list traversed in non-reader section!!
[ 1290.342318][ T7895] 
[ 1290.342318][ T7895] other info that might help us debug this:
[ 1290.342318][ T7895] 
[ 1290.342764][ T7895] 
[ 1290.342764][ T7895] rcu_scheduler_active = 2, debug_locks = 1
[ 1290.343021][ T7895] no locks held by smcrouted/7895.
[ 1290.343201][ T7895] 
[ 1290.343201][ T7895] stack backtrace:
[ 1290.343566][ T7895] CPU: 0 UID: 0 PID: 7895 Comm: smcrouted Not tainted 6.12.0-rc7-virtme #1
[ 1290.343870][ T7895] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 1290.344080][ T7895] Call Trace:
[ 1290.344211][ T7895]  <TASK>
[ 1290.344302][ T7895]  dump_stack_lvl+0xb0/0xd0
[ 1290.344490][ T7895]  lockdep_rcu_suspicious+0x1ea/0x280
[ 1290.344665][ T7895]  ip6mr_get_table+0x142/0x190
[ 1290.344842][ T7895]  ip6_mroute_setsockopt+0x185/0x12d0
[ 1290.345019][ T7895]  ? __pfx_ip6_mroute_setsockopt+0x10/0x10
[ 1290.345237][ T7895]  ? __lock_release+0x103/0x460
[ 1290.345407][ T7895]  ? __might_fault+0x11b/0x170
[ 1290.345583][ T7895]  ? trace_lock_acquire+0x14d/0x1f0
[ 1290.345762][ T7895]  ? __might_fault+0xc3/0x170
[ 1290.345933][ T7895]  ? lock_acquire+0x32/0xc0
[ 1290.346110][ T7895]  ? __might_fault+0xc3/0x170
[ 1290.346280][ T7895]  ? __might_fault+0x11b/0x170
[ 1290.346456][ T7895]  do_ipv6_setsockopt+0x705/0x34e0
[ 1290.346629][ T7895]  ? __lock_release+0x40/0x460
[ 1290.346805][ T7895]  ? __pfx_do_ipv6_setsockopt+0x10/0x10
[ 1290.346977][ T7895]  ? __pfx_lock_acquire.part.0+0x10/0x10
[ 1290.347148][ T7895]  ? rcu_read_lock_any_held+0x43/0xb0
[ 1290.347317][ T7895]  ? validate_chain+0x1fe/0xae0
[ 1290.347486][ T7895]  ? is_bpf_text_address+0x67/0x120
[ 1290.347663][ T7895]  ? __pfx_validate_chain+0x10/0x10
[ 1290.347833][ T7895]  ? hlock_class+0x4e/0x130
[ 1290.348005][ T7895]  ? mark_lock+0x38/0x3e0
[ 1290.348140][ T7895]  ? __lock_acquire+0xb3f/0x1580
[ 1290.348320][ T7895]  ? find_held_lock+0x2c/0x110
[ 1290.348501][ T7895]  ? ipv6_setsockopt+0x7f/0xe0
[ 1290.348673][ T7895]  ipv6_setsockopt+0x7f/0xe0
[ 1290.348844][ T7895]  rawv6_setsockopt+0xb7/0x550
[ 1290.349014][ T7895]  ? __pfx_rawv6_setsockopt+0x10/0x10
[ 1290.349186][ T7895]  ? __lock_acquire+0xb3f/0x1580
[ 1290.349362][ T7895]  ? kfree+0x2d/0x340
[ 1290.349505][ T7895]  do_sock_setsockopt+0x149/0x3a0
[ 1290.349692][ T7895]  ? __pfx_do_sock_setsockopt+0x10/0x10
[ 1290.349867][ T7895]  ? __lock_release+0x103/0x460
[ 1290.350042][ T7895]  ? fd_install+0x1d1/0x5a0
[ 1290.350219][ T7895]  ? trace_lock_acquire+0x14d/0x1f0
[ 1290.350398][ T7895]  ? fdget+0x52/0x1e0
[ 1290.350536][ T7895]  __sys_setsockopt+0x104/0x1a0
[ 1290.350714][ T7895]  ? __pfx___sys_setsockopt+0x10/0x10
[ 1290.350885][ T7895]  ? __sys_socket+0x168/0x1e0
[ 1290.351056][ T7895]  ? __pfx___sys_socket+0x10/0x10
[ 1290.351225][ T7895]  ? do_user_addr_fault+0x374/0xe30
[ 1290.351400][ T7895]  __x64_sys_setsockopt+0xbd/0x160
[ 1290.351568][ T7895]  ? lockdep_hardirqs_on_prepare+0x275/0x410
[ 1290.351779][ T7895]  do_syscall_64+0xc1/0x1d0
[ 1290.351956][ T7895]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 1290.352176][ T7895] RIP: 0033:0x7fc1ee4fd91e
[ 1290.352355][ T7895] 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
[ 1290.352948][ T7895] RSP: 002b:00007fff9dee3888 EFLAGS: 00000246 ORIG_RAX: 0000000000000036
[ 1290.353204][ T7895] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fc1ee4fd91e
[ 1290.353462][ T7895] RDX: 00000000000000c8 RSI: 0000000000000029 RDI: 0000000000000008
[ 1290.353724][ T7895] RBP: 0000000000000008 R08: 0000000000000004 R09: 0000000000000000
[ 1290.353980][ T7895] R10: 00007fff9dee38ac R11: 0000000000000246 R12: 0000000000000000
[ 1290.354238][ T7895] R13: 0000000000402650 R14: 0000000000411dd8 R15: 00007fc1ee602000
[ 1290.354506][ T7895]  </TASK>
[ 1290.359770][ T7895] veth0: entered allmulticast mode
[ 1290.360920][ T7895] veth1: entered allmulticast mode
[ 1290.361762][ T7895] veth2: entered allmulticast mode
[ 1290.362894][ T7895] veth3: entered allmulticast mode
[ 1308.930692][ T7895] veth0: left allmulticast mode
[ 1308.931177][ T7895] veth1: left allmulticast mode
[ 1308.931614][ T7895] veth2: left allmulticast mode
[ 1308.932041][ T7895] veth3: left allmulticast mode