[ 1260.387780][ T8452] [ 1260.387991][ T8452] ============================= [ 1260.388288][ T8452] WARNING: suspicious RCU usage [ 1260.388555][ T8452] 6.12.0-rc6-virtme #1 Not tainted [ 1260.388850][ T8452] ----------------------------- [ 1260.389111][ T8452] net/ipv6/ip6mr.c:132 RCU-list traversed in non-reader section!! [ 1260.389683][ T8452] [ 1260.389683][ T8452] other info that might help us debug this: [ 1260.389683][ T8452] [ 1260.390369][ T8452] [ 1260.390369][ T8452] rcu_scheduler_active = 2, debug_locks = 1 [ 1260.390755][ T8452] no locks held by smcrouted/8452. [ 1260.391026][ T8452] [ 1260.391026][ T8452] stack backtrace: [ 1260.391525][ T8452] CPU: 0 UID: 0 PID: 8452 Comm: smcrouted Not tainted 6.12.0-rc6-virtme #1 [ 1260.391983][ T8452] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 1260.392316][ T8452] Call Trace: [ 1260.392525][ T8452] [ 1260.392668][ T8452] dump_stack_lvl+0xb0/0xd0 [ 1260.392945][ T8452] lockdep_rcu_suspicious+0x1ea/0x280 [ 1260.393233][ T8452] ip6mr_get_table+0x142/0x190 [ 1260.393504][ T8452] ip6_mroute_setsockopt+0x185/0x12d0 [ 1260.393774][ T8452] ? __pfx_ip6_mroute_setsockopt+0x10/0x10 [ 1260.394115][ T8452] ? __lock_release+0x103/0x460 [ 1260.394377][ T8452] ? __might_fault+0x11b/0x170 [ 1260.394645][ T8452] ? trace_lock_acquire+0x14d/0x1f0 [ 1260.394918][ T8452] ? __might_fault+0xc3/0x170 [ 1260.395180][ T8452] ? lock_acquire+0x32/0xc0 [ 1260.395458][ T8452] ? __might_fault+0xc3/0x170 [ 1260.395728][ T8452] ? __might_fault+0x11b/0x170 [ 1260.396014][ T8452] do_ipv6_setsockopt+0x705/0x34e0 [ 1260.396291][ T8452] ? __lock_release+0xe0/0x460 [ 1260.396557][ T8452] ? __pfx_do_ipv6_setsockopt+0x10/0x10 [ 1260.396814][ T8452] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 1260.397095][ T8452] ? rcu_read_lock_any_held+0x43/0xb0 [ 1260.397360][ T8452] ? validate_chain+0x1fe/0xae0 [ 1260.397621][ T8452] ? is_bpf_text_address+0x67/0x120 [ 1260.397894][ T8452] ? __pfx_validate_chain+0x10/0x10 [ 1260.398153][ T8452] ? hlock_class+0x4e/0x130 [ 1260.398411][ T8452] ? mark_lock+0x38/0x3e0 [ 1260.398615][ T8452] ? __lock_acquire+0xb3f/0x1580 [ 1260.398890][ T8452] ? find_held_lock+0x2c/0x110 [ 1260.399149][ T8452] ? ipv6_setsockopt+0x7f/0xe0 [ 1260.399418][ T8452] ipv6_setsockopt+0x7f/0xe0 [ 1260.399682][ T8452] rawv6_setsockopt+0xb7/0x550 [ 1260.399949][ T8452] ? __pfx_rawv6_setsockopt+0x10/0x10 [ 1260.400207][ T8452] ? __lock_acquire+0xb3f/0x1580 [ 1260.400479][ T8452] ? kfree+0x2d/0x340 [ 1260.400691][ T8452] do_sock_setsockopt+0x149/0x3a0 [ 1260.400953][ T8452] ? __pfx_do_sock_setsockopt+0x10/0x10 [ 1260.401208][ T8452] ? __lock_release+0x103/0x460 [ 1260.401457][ T8452] ? fd_install+0x1d1/0x5a0 [ 1260.401716][ T8452] ? trace_lock_acquire+0x14d/0x1f0 [ 1260.401976][ T8452] ? fdget+0x52/0x1e0 [ 1260.402174][ T8452] __sys_setsockopt+0x104/0x1a0 [ 1260.402422][ T8452] ? __pfx___sys_setsockopt+0x10/0x10 [ 1260.402670][ T8452] ? __sys_socket+0x168/0x1e0 [ 1260.402929][ T8452] ? __pfx___sys_socket+0x10/0x10 [ 1260.403201][ T8452] ? do_user_addr_fault+0x374/0xe30 [ 1260.403485][ T8452] __x64_sys_setsockopt+0xbd/0x160 [ 1260.403757][ T8452] ? lockdep_hardirqs_on_prepare+0x275/0x410 [ 1260.404082][ T8452] do_syscall_64+0xc1/0x1d0 [ 1260.404341][ T8452] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 1260.404658][ T8452] RIP: 0033:0x7fbb6ab5891e [ 1260.404945][ T8452] 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 [ 1260.405834][ T8452] RSP: 002b:00007ffe9ec69c58 EFLAGS: 00000246 ORIG_RAX: 0000000000000036 [ 1260.406250][ T8452] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fbb6ab5891e [ 1260.406663][ T8452] RDX: 00000000000000c8 RSI: 0000000000000029 RDI: 0000000000000008 [ 1260.407057][ T8452] RBP: 0000000000000008 R08: 0000000000000004 R09: 0000000000000000 [ 1260.407442][ T8452] R10: 00007ffe9ec69c7c R11: 0000000000000246 R12: 0000000000000000 [ 1260.407810][ T8452] R13: 0000000000402650 R14: 0000000000411dd8 R15: 00007fbb6ac5d000 [ 1260.408222][ T8452] [ 1260.411552][ T8452] veth0: entered allmulticast mode [ 1260.412244][ T8452] veth1: entered allmulticast mode [ 1260.412639][ T8452] veth2: entered allmulticast mode [ 1260.413004][ T8452] veth3: entered allmulticast mode [ 1260.413398][ T8452] veth4: entered allmulticast mode [ 1260.413753][ T8452] veth5: entered allmulticast mode [ 1288.851156][ T8452] veth0: left allmulticast mode [ 1288.851529][ T8452] veth1: left allmulticast mode [ 1288.851806][ T8452] veth2: left allmulticast mode [ 1288.852066][ T8452] veth3: left allmulticast mode [ 1288.861097][ T8452] veth4: left allmulticast mode [ 1288.861646][ T8452] veth5: left allmulticast mode