[ 1328.515104][ T8663] [ 1328.515269][ T8663] ============================= [ 1328.515471][ T8663] WARNING: suspicious RCU usage [ 1328.515640][ T8663] 6.12.0-rc7-virtme #1 Not tainted [ 1328.515812][ T8663] ----------------------------- [ 1328.515979][ T8663] net/ipv6/ip6mr.c:132 RCU-list traversed in non-reader section!! [ 1328.516222][ T8663] [ 1328.516222][ T8663] other info that might help us debug this: [ 1328.516222][ T8663] [ 1328.516553][ T8663] [ 1328.516553][ T8663] rcu_scheduler_active = 2, debug_locks = 1 [ 1328.516817][ T8663] no locks held by smcrouted/8663. [ 1328.516988][ T8663] [ 1328.516988][ T8663] stack backtrace: [ 1328.517196][ T8663] CPU: 2 UID: 0 PID: 8663 Comm: smcrouted Not tainted 6.12.0-rc7-virtme #1 [ 1328.517475][ T8663] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 1328.517678][ T8663] Call Trace: [ 1328.517798][ T8663] [ 1328.517886][ T8663] dump_stack_lvl+0xb0/0xd0 [ 1328.518057][ T8663] lockdep_rcu_suspicious+0x1ea/0x280 [ 1328.518222][ T8663] ip6mr_get_table+0x142/0x190 [ 1328.518387][ T8663] ip6_mroute_setsockopt+0x185/0x12d0 [ 1328.518546][ T8663] ? __pfx_ip6_mroute_setsockopt+0x10/0x10 [ 1328.518746][ T8663] ? __lock_release+0x103/0x460 [ 1328.518904][ T8663] ? __might_fault+0x11b/0x170 [ 1328.519066][ T8663] ? trace_lock_acquire+0x14d/0x1f0 [ 1328.519227][ T8663] ? __might_fault+0xc3/0x170 [ 1328.519383][ T8663] ? lock_acquire+0x32/0xc0 [ 1328.519540][ T8663] ? __might_fault+0xc3/0x170 [ 1328.519697][ T8663] ? __might_fault+0x11b/0x170 [ 1328.519860][ T8663] do_ipv6_setsockopt+0x705/0x34e0 [ 1328.520029][ T8663] ? __lock_release+0x10/0x460 [ 1328.520189][ T8663] ? __pfx_do_ipv6_setsockopt+0x10/0x10 [ 1328.520349][ T8663] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 1328.520521][ T8663] ? rcu_read_lock_any_held+0x43/0xb0 [ 1328.520688][ T8663] ? validate_chain+0x1fe/0xae0 [ 1328.520846][ T8663] ? is_bpf_text_address+0x67/0x120 [ 1328.521009][ T8663] ? __pfx_validate_chain+0x10/0x10 [ 1328.521165][ T8663] ? hlock_class+0x4e/0x130 [ 1328.521319][ T8663] ? mark_lock+0x38/0x3e0 [ 1328.521450][ T8663] ? __lock_acquire+0xb3f/0x1580 [ 1328.521613][ T8663] ? find_held_lock+0x2c/0x110 [ 1328.521775][ T8663] ? ipv6_setsockopt+0x7f/0xe0 [ 1328.521934][ T8663] ipv6_setsockopt+0x7f/0xe0 [ 1328.522095][ T8663] rawv6_setsockopt+0xb7/0x550 [ 1328.522254][ T8663] ? __pfx_rawv6_setsockopt+0x10/0x10 [ 1328.522412][ T8663] ? __lock_acquire+0xb3f/0x1580 [ 1328.522568][ T8663] ? kfree+0x2d/0x340 [ 1328.522695][ T8663] do_sock_setsockopt+0x149/0x3a0 [ 1328.522855][ T8663] ? __pfx_do_sock_setsockopt+0x10/0x10 [ 1328.523008][ T8663] ? __lock_release+0x103/0x460 [ 1328.523160][ T8663] ? fd_install+0x1d1/0x5a0 [ 1328.523318][ T8663] ? trace_lock_acquire+0x14d/0x1f0 [ 1328.523486][ T8663] ? fdget+0x52/0x1e0 [ 1328.523608][ T8663] __sys_setsockopt+0x104/0x1a0 [ 1328.523772][ T8663] ? __pfx___sys_setsockopt+0x10/0x10 [ 1328.523926][ T8663] ? __sys_socket+0x168/0x1e0 [ 1328.524086][ T8663] ? __pfx___sys_socket+0x10/0x10 [ 1328.524248][ T8663] ? do_user_addr_fault+0x374/0xe30 [ 1328.524409][ T8663] __x64_sys_setsockopt+0xbd/0x160 [ 1328.524563][ T8663] ? lockdep_hardirqs_on_prepare+0x275/0x410 [ 1328.524759][ T8663] do_syscall_64+0xc1/0x1d0 [ 1328.524916][ T8663] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 1328.525116][ T8663] RIP: 0033:0x7fc71e7e891e [ 1328.525285][ T8663] 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 [ 1328.525830][ T8663] RSP: 002b:00007ffc543d6218 EFLAGS: 00000246 ORIG_RAX: 0000000000000036 [ 1328.526065][ T8663] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fc71e7e891e [ 1328.526303][ T8663] RDX: 00000000000000c8 RSI: 0000000000000029 RDI: 0000000000000008 [ 1328.526536][ T8663] RBP: 0000000000000008 R08: 0000000000000004 R09: 0000000000000000 [ 1328.526777][ T8663] R10: 00007ffc543d623c R11: 0000000000000246 R12: 0000000000000000 [ 1328.527006][ T8663] R13: 0000000000402650 R14: 0000000000411dd8 R15: 00007fc71e8ed000 [ 1328.527252][ T8663] [ 1328.537001][ T8663] veth0: entered allmulticast mode [ 1328.537571][ T8663] veth1: entered allmulticast mode [ 1328.537930][ T8663] veth2: entered allmulticast mode [ 1328.538261][ T8663] veth3: entered allmulticast mode [ 1328.538611][ T8663] veth4: entered allmulticast mode [ 1328.538938][ T8663] veth5: entered allmulticast mode [ 1354.189348][ T8663] veth0: left allmulticast mode [ 1354.189664][ T8663] veth1: left allmulticast mode [ 1354.189899][ T8663] veth2: left allmulticast mode [ 1354.190128][ T8663] veth3: left allmulticast mode [ 1354.190375][ T8663] veth4: left allmulticast mode [ 1354.190607][ T8663] veth5: left allmulticast mode