[ 10.225523][ T249] ip (249) used greatest stack depth: 24176 bytes left [ 11.235611][ T280] [ 11.235790][ T280] ============================= [ 11.235974][ T280] WARNING: suspicious RCU usage [ 11.236147][ T280] 6.12.0-rc6-virtme #1 Not tainted [ 11.236322][ T280] ----------------------------- [ 11.236596][ T280] net/ipv6/ip6mr.c:132 RCU-list traversed in non-reader section!! [ 11.236844][ T280] [ 11.236844][ T280] other info that might help us debug this: [ 11.236844][ T280] [ 11.237162][ T280] [ 11.237162][ T280] rcu_scheduler_active = 2, debug_locks = 1 [ 11.237425][ T280] no locks held by smcrouted/280. [ 11.237602][ T280] [ 11.237602][ T280] stack backtrace: [ 11.237816][ T280] CPU: 2 UID: 0 PID: 280 Comm: smcrouted Not tainted 6.12.0-rc6-virtme #1 [ 11.238060][ T280] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 11.238266][ T280] Call Trace: [ 11.238397][ T280] [ 11.238486][ T280] dump_stack_lvl+0xb0/0xd0 [ 11.238659][ T280] lockdep_rcu_suspicious+0x1ea/0x280 [ 11.238839][ T280] ip6mr_get_table+0x142/0x190 [ 11.239007][ T280] ip6_mroute_setsockopt+0x185/0x12d0 [ 11.239173][ T280] ? __pfx_ip6_mroute_setsockopt+0x10/0x10 [ 11.239378][ T280] ? __lock_release+0x103/0x460 [ 11.239543][ T280] ? __might_fault+0x11b/0x170 [ 11.239707][ T280] ? trace_lock_acquire+0x14d/0x1f0 [ 11.239874][ T280] ? __might_fault+0xc3/0x170 [ 11.240030][ T280] ? lock_acquire+0x32/0xc0 [ 11.240188][ T280] ? __might_fault+0xc3/0x170 [ 11.240355][ T280] ? __might_fault+0x11b/0x170 [ 11.240523][ T280] do_ipv6_setsockopt+0x705/0x34e0 [ 11.240691][ T280] ? __lock_release+0xe0/0x460 [ 11.240849][ T280] ? __pfx_do_ipv6_setsockopt+0x10/0x10 [ 11.241007][ T280] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 11.241167][ T280] ? rcu_read_lock_any_held+0x43/0xb0 [ 11.241331][ T280] ? validate_chain+0x1fe/0xae0 [ 11.241500][ T280] ? is_bpf_text_address+0x67/0x120 [ 11.241669][ T280] ? __pfx_validate_chain+0x10/0x10 [ 11.241824][ T280] ? hlock_class+0x4e/0x130 [ 11.241985][ T280] ? mark_lock+0x38/0x3e0 [ 11.242110][ T280] ? __lock_acquire+0xb3f/0x1580 [ 11.242279][ T280] ? find_held_lock+0x2c/0x110 [ 11.242443][ T280] ? ipv6_setsockopt+0x7f/0xe0 [ 11.242603][ T280] ipv6_setsockopt+0x7f/0xe0 [ 11.242762][ T280] rawv6_setsockopt+0xb7/0x550 [ 11.242922][ T280] ? __pfx_rawv6_setsockopt+0x10/0x10 [ 11.243077][ T280] ? __lock_acquire+0xb3f/0x1580 [ 11.243236][ T280] ? kfree+0x2d/0x340 [ 11.243367][ T280] do_sock_setsockopt+0x149/0x3a0 [ 11.243533][ T280] ? __pfx_do_sock_setsockopt+0x10/0x10 [ 11.243689][ T280] ? __lock_release+0x103/0x460 [ 11.243847][ T280] ? fd_install+0x1d1/0x5a0 [ 11.244010][ T280] ? trace_lock_acquire+0x14d/0x1f0 [ 11.244171][ T280] ? fdget+0x52/0x1e0 [ 11.244293][ T280] __sys_setsockopt+0x104/0x1a0 [ 11.244455][ T280] ? __pfx___sys_setsockopt+0x10/0x10 [ 11.244612][ T280] ? __sys_socket+0x168/0x1e0 [ 11.244773][ T280] ? __pfx___sys_socket+0x10/0x10 [ 11.244928][ T280] ? do_user_addr_fault+0x374/0xe30 [ 11.245088][ T280] __x64_sys_setsockopt+0xbd/0x160 [ 11.245245][ T280] ? lockdep_hardirqs_on_prepare+0x275/0x410 [ 11.245446][ T280] do_syscall_64+0xc1/0x1d0 [ 11.245603][ T280] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 11.245797][ T280] RIP: 0033:0x7f53ce4c491e [ 11.245963][ T280] 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 [ 11.246514][ T280] RSP: 002b:00007ffd41c40a78 EFLAGS: 00000246 ORIG_RAX: 0000000000000036 [ 11.246758][ T280] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f53ce4c491e [ 11.247000][ T280] RDX: 00000000000000c8 RSI: 0000000000000029 RDI: 0000000000000008 [ 11.247240][ T280] RBP: 0000000000000008 R08: 0000000000000004 R09: 0000000000000000 [ 11.247484][ T280] R10: 00007ffd41c40a9c R11: 0000000000000246 R12: 0000000000000000 [ 11.247717][ T280] R13: 0000000000402650 R14: 0000000000411dd8 R15: 00007f53ce5c9000 [ 11.247966][ T280] [ 11.251275][ T280] veth0: entered allmulticast mode [ 11.252150][ T280] veth1: entered allmulticast mode [ 11.252547][ T280] veth2: entered allmulticast mode [ 11.252906][ T280] veth3: entered allmulticast mode [ 22.843503][ T367] GACT probability NOT on [ 24.241320][ T398] tc (398) used greatest stack depth: 23856 bytes left [ 29.939011][ T280] veth0: left allmulticast mode [ 29.939363][ T280] veth1: left allmulticast mode [ 29.939643][ T280] veth2: left allmulticast mode [ 29.939892][ T280] veth3: left allmulticast mode