[ 1299.592426][ T7845] 
[ 1299.592556][ T7845] =============================
[ 1299.592722][ T7845] WARNING: suspicious RCU usage
[ 1299.592881][ T7845] 6.12.0-rc6-virtme #1 Not tainted
[ 1299.593047][ T7845] -----------------------------
[ 1299.593219][ T7845] net/ipv6/ip6mr.c:132 RCU-list traversed in non-reader section!!
[ 1299.593890][ T7845] 
[ 1299.593890][ T7845] other info that might help us debug this:
[ 1299.593890][ T7845] 
[ 1299.594228][ T7845] 
[ 1299.594228][ T7845] rcu_scheduler_active = 2, debug_locks = 1
[ 1299.594489][ T7845] no locks held by smcrouted/7845.
[ 1299.594663][ T7845] 
[ 1299.594663][ T7845] stack backtrace:
[ 1299.594874][ T7845] CPU: 3 UID: 0 PID: 7845 Comm: smcrouted Not tainted 6.12.0-rc6-virtme #1
[ 1299.595168][ T7845] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 1299.595387][ T7845] Call Trace:
[ 1299.595520][ T7845]  <TASK>
[ 1299.595613][ T7845]  dump_stack_lvl+0xb0/0xd0
[ 1299.595796][ T7845]  lockdep_rcu_suspicious+0x1ea/0x280
[ 1299.595974][ T7845]  ip6mr_get_table+0x142/0x190
[ 1299.596151][ T7845]  ip6_mroute_setsockopt+0x185/0x12d0
[ 1299.596325][ T7845]  ? __pfx_ip6_mroute_setsockopt+0x10/0x10
[ 1299.596551][ T7845]  ? __lock_release+0x103/0x460
[ 1299.596726][ T7845]  ? __might_fault+0x11b/0x170
[ 1299.596900][ T7845]  ? trace_lock_acquire+0x14d/0x1f0
[ 1299.597077][ T7845]  ? __might_fault+0xc3/0x170
[ 1299.597247][ T7845]  ? lock_acquire+0x32/0xc0
[ 1299.597419][ T7845]  ? __might_fault+0xc3/0x170
[ 1299.597595][ T7845]  ? __might_fault+0x11b/0x170
[ 1299.597794][ T7845]  do_ipv6_setsockopt+0x705/0x34e0
[ 1299.597974][ T7845]  ? __lock_release+0xe0/0x460
[ 1299.598148][ T7845]  ? __pfx_do_ipv6_setsockopt+0x10/0x10
[ 1299.598318][ T7845]  ? __pfx_lock_acquire.part.0+0x10/0x10
[ 1299.598496][ T7845]  ? rcu_read_lock_any_held+0x43/0xb0
[ 1299.598670][ T7845]  ? validate_chain+0x1fe/0xae0
[ 1299.598849][ T7845]  ? is_bpf_text_address+0x67/0x120
[ 1299.599032][ T7845]  ? __pfx_validate_chain+0x10/0x10
[ 1299.599203][ T7845]  ? hlock_class+0x4e/0x130
[ 1299.599375][ T7845]  ? mark_lock+0x38/0x3e0
[ 1299.599514][ T7845]  ? __lock_acquire+0xb3f/0x1580
[ 1299.599697][ T7845]  ? find_held_lock+0x2c/0x110
[ 1299.599879][ T7845]  ? ipv6_setsockopt+0x7f/0xe0
[ 1299.600054][ T7845]  ipv6_setsockopt+0x7f/0xe0
[ 1299.600236][ T7845]  rawv6_setsockopt+0xb7/0x550
[ 1299.600408][ T7845]  ? __pfx_rawv6_setsockopt+0x10/0x10
[ 1299.600580][ T7845]  ? __lock_acquire+0xb3f/0x1580
[ 1299.600760][ T7845]  ? kfree+0x2d/0x340
[ 1299.600899][ T7845]  do_sock_setsockopt+0x149/0x3a0
[ 1299.601081][ T7845]  ? __pfx_do_sock_setsockopt+0x10/0x10
[ 1299.601258][ T7845]  ? __lock_release+0x103/0x460
[ 1299.601433][ T7845]  ? fd_install+0x1d1/0x5a0
[ 1299.601612][ T7845]  ? trace_lock_acquire+0x14d/0x1f0
[ 1299.601789][ T7845]  ? fdget+0x52/0x1e0
[ 1299.601929][ T7845]  __sys_setsockopt+0x104/0x1a0
[ 1299.602112][ T7845]  ? __pfx___sys_setsockopt+0x10/0x10
[ 1299.602286][ T7845]  ? __sys_socket+0x168/0x1e0
[ 1299.602457][ T7845]  ? __pfx___sys_socket+0x10/0x10
[ 1299.602629][ T7845]  ? do_user_addr_fault+0x374/0xe30
[ 1299.602809][ T7845]  __x64_sys_setsockopt+0xbd/0x160
[ 1299.602983][ T7845]  ? lockdep_hardirqs_on_prepare+0x275/0x410
[ 1299.603198][ T7845]  do_syscall_64+0xc1/0x1d0
[ 1299.603374][ T7845]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 1299.603592][ T7845] RIP: 0033:0x7fc36a3a791e
[ 1299.603776][ T7845] 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
[ 1299.604383][ T7845] RSP: 002b:00007fff19b92808 EFLAGS: 00000246 ORIG_RAX: 0000000000000036
[ 1299.604648][ T7845] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fc36a3a791e
[ 1299.604907][ T7845] RDX: 00000000000000c8 RSI: 0000000000000029 RDI: 0000000000000008
[ 1299.605174][ T7845] RBP: 0000000000000008 R08: 0000000000000004 R09: 0000000000000000
[ 1299.605445][ T7845] R10: 00007fff19b9282c R11: 0000000000000246 R12: 0000000000000000
[ 1299.605709][ T7845] R13: 0000000000402650 R14: 0000000000411dd8 R15: 00007fc36a4ac000
[ 1299.605995][ T7845]  </TASK>
[ 1299.610046][ T7845] veth0: entered allmulticast mode
[ 1299.610856][ T7845] veth1: entered allmulticast mode
[ 1299.611220][ T7845] veth2: entered allmulticast mode
[ 1299.631481][ T7845] veth3: entered allmulticast mode
[ 1318.145332][ T7845] veth0: left allmulticast mode
[ 1318.145942][ T7845] veth1: left allmulticast mode
[ 1318.146388][ T7845] veth2: left allmulticast mode
[ 1318.146661][ T7845] veth3: left allmulticast mode