[ 1322.894493][ T8481] [ 1322.894783][ T8481] ============================= [ 1322.895080][ T8481] WARNING: suspicious RCU usage [ 1322.895361][ T8481] 6.12.0-rc7-virtme #1 Not tainted [ 1322.895672][ T8481] ----------------------------- [ 1322.895959][ T8481] net/ipv6/ip6mr.c:132 RCU-list traversed in non-reader section!! [ 1322.896382][ T8481] [ 1322.896382][ T8481] other info that might help us debug this: [ 1322.896382][ T8481] [ 1322.896925][ T8481] [ 1322.896925][ T8481] rcu_scheduler_active = 2, debug_locks = 1 [ 1322.897342][ T8481] no locks held by smcrouted/8481. [ 1322.897650][ T8481] [ 1322.897650][ T8481] stack backtrace: [ 1322.897929][ T8481] CPU: 2 UID: 0 PID: 8481 Comm: smcrouted Not tainted 6.12.0-rc7-virtme #1 [ 1322.898333][ T8481] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 1322.898670][ T8481] Call Trace: [ 1322.898883][ T8481] [ 1322.899032][ T8481] dump_stack_lvl+0xb0/0xd0 [ 1322.899318][ T8481] lockdep_rcu_suspicious+0x1ea/0x280 [ 1322.899604][ T8481] ip6mr_get_table+0x142/0x190 [ 1322.899877][ T8481] ip6_mroute_setsockopt+0x185/0x12d0 [ 1322.900141][ T8481] ? __pfx_ip6_mroute_setsockopt+0x10/0x10 [ 1322.900475][ T8481] ? __lock_release+0x103/0x460 [ 1322.900740][ T8481] ? __might_fault+0x11b/0x170 [ 1322.901001][ T8481] ? trace_lock_acquire+0x14d/0x1f0 [ 1322.901276][ T8481] ? __might_fault+0xc3/0x170 [ 1322.901530][ T8481] ? lock_acquire+0x32/0xc0 [ 1322.901787][ T8481] ? __might_fault+0xc3/0x170 [ 1322.902046][ T8481] ? __might_fault+0x11b/0x170 [ 1322.902316][ T8481] do_ipv6_setsockopt+0x705/0x34e0 [ 1322.902512][ T8481] ? __lock_release+0x10/0x460 [ 1322.902689][ T8481] ? __pfx_do_ipv6_setsockopt+0x10/0x10 [ 1322.902857][ T8481] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 1322.903054][ T8481] ? rcu_read_lock_any_held+0x43/0xb0 [ 1322.903295][ T8481] ? validate_chain+0x1fe/0xae0 [ 1322.903558][ T8481] ? is_bpf_text_address+0x67/0x120 [ 1322.903812][ T8481] ? __pfx_validate_chain+0x10/0x10 [ 1322.904056][ T8481] ? hlock_class+0x4e/0x130 [ 1322.904308][ T8481] ? mark_lock+0x38/0x3e0 [ 1322.904504][ T8481] ? __lock_acquire+0xb3f/0x1580 [ 1322.904772][ T8481] ? find_held_lock+0x2c/0x110 [ 1322.905026][ T8481] ? ipv6_setsockopt+0x7f/0xe0 [ 1322.905276][ T8481] ipv6_setsockopt+0x7f/0xe0 [ 1322.905532][ T8481] rawv6_setsockopt+0xb7/0x550 [ 1322.905781][ T8481] ? __pfx_rawv6_setsockopt+0x10/0x10 [ 1322.906022][ T8481] ? __lock_acquire+0xb3f/0x1580 [ 1322.906270][ T8481] ? kfree+0x2d/0x340 [ 1322.906470][ T8481] do_sock_setsockopt+0x149/0x3a0 [ 1322.906741][ T8481] ? __pfx_do_sock_setsockopt+0x10/0x10 [ 1322.907007][ T8481] ? __lock_release+0x103/0x460 [ 1322.907284][ T8481] ? fd_install+0x1d1/0x5a0 [ 1322.907566][ T8481] ? trace_lock_acquire+0x14d/0x1f0 [ 1322.907836][ T8481] ? fdget+0x52/0x1e0 [ 1322.908053][ T8481] __sys_setsockopt+0x104/0x1a0 [ 1322.908322][ T8481] ? __pfx___sys_setsockopt+0x10/0x10 [ 1322.908593][ T8481] ? __sys_socket+0x168/0x1e0 [ 1322.908861][ T8481] ? __pfx___sys_socket+0x10/0x10 [ 1322.909135][ T8481] ? do_user_addr_fault+0x374/0xe30 [ 1322.909409][ T8481] __x64_sys_setsockopt+0xbd/0x160 [ 1322.909675][ T8481] ? lockdep_hardirqs_on_prepare+0x275/0x410 [ 1322.910012][ T8481] do_syscall_64+0xc1/0x1d0 [ 1322.910283][ T8481] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 1322.910607][ T8481] RIP: 0033:0x7f4ce2eeb91e [ 1322.910897][ T8481] 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 [ 1322.911800][ T8481] RSP: 002b:00007ffd9fc6b448 EFLAGS: 00000246 ORIG_RAX: 0000000000000036 [ 1322.912208][ T8481] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f4ce2eeb91e [ 1322.912608][ T8481] RDX: 00000000000000c8 RSI: 0000000000000029 RDI: 0000000000000008 [ 1322.912993][ T8481] RBP: 0000000000000008 R08: 0000000000000004 R09: 0000000000000000 [ 1322.913361][ T8481] R10: 00007ffd9fc6b46c R11: 0000000000000246 R12: 0000000000000000 [ 1322.913745][ T8481] R13: 0000000000402650 R14: 0000000000411dd8 R15: 00007f4ce2ff0000 [ 1322.914145][ T8481] [ 1322.918278][ T8481] veth0: entered allmulticast mode [ 1322.919232][ T8481] veth1: entered allmulticast mode [ 1322.919837][ T8481] veth2: entered allmulticast mode [ 1322.920387][ T8481] veth3: entered allmulticast mode [ 1322.922969][ T8481] veth4: entered allmulticast mode [ 1322.923308][ T8481] veth5: entered allmulticast mode [ 1348.502741][ T8481] veth0: left allmulticast mode [ 1348.503135][ T8481] veth1: left allmulticast mode [ 1348.503445][ T8481] veth2: left allmulticast mode [ 1348.503762][ T8481] veth3: left allmulticast mode [ 1348.504067][ T8481] veth4: left allmulticast mode [ 1348.504372][ T8481] veth5: left allmulticast mode