[ 1268.811958][ T4458] [ 1268.812235][ T4458] ============================= [ 1268.812437][ T4458] WARNING: suspicious RCU usage [ 1268.812621][ T4458] 6.12.0-rc7-virtme #1 Not tainted [ 1268.812803][ T4458] ----------------------------- [ 1268.812986][ T4458] net/ipv6/ip6mr.c:132 RCU-list traversed in non-reader section!! [ 1268.813261][ T4458] [ 1268.813261][ T4458] other info that might help us debug this: [ 1268.813261][ T4458] [ 1268.813604][ T4458] [ 1268.813604][ T4458] rcu_scheduler_active = 2, debug_locks = 1 [ 1268.813873][ T4458] no locks held by smcrouted/4458. [ 1268.814063][ T4458] [ 1268.814063][ T4458] stack backtrace: [ 1268.814299][ T4458] CPU: 2 UID: 0 PID: 4458 Comm: smcrouted Not tainted 6.12.0-rc7-virtme #1 [ 1268.814616][ T4458] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 1268.814820][ T4458] Call Trace: [ 1268.814958][ T4458] [ 1268.815053][ T4458] dump_stack_lvl+0xb0/0xd0 [ 1268.815243][ T4458] lockdep_rcu_suspicious+0x1ea/0x280 [ 1268.815421][ T4458] ip6mr_get_table+0x142/0x190 [ 1268.815601][ T4458] ip6_mroute_setsockopt+0x185/0x12d0 [ 1268.815774][ T4458] ? __pfx_ip6_mroute_setsockopt+0x10/0x10 [ 1268.815990][ T4458] ? __lock_release+0x103/0x460 [ 1268.816168][ T4458] ? __might_fault+0x11b/0x170 [ 1268.816351][ T4458] ? trace_lock_acquire+0x14d/0x1f0 [ 1268.816526][ T4458] ? __might_fault+0xc3/0x170 [ 1268.816699][ T4458] ? lock_acquire+0x32/0xc0 [ 1268.816866][ T4458] ? __might_fault+0xc3/0x170 [ 1268.817035][ T4458] ? __might_fault+0x11b/0x170 [ 1268.817207][ T4458] do_ipv6_setsockopt+0x705/0x34e0 [ 1268.817377][ T4458] ? __lock_release+0x10/0x460 [ 1268.817546][ T4458] ? __pfx_do_ipv6_setsockopt+0x10/0x10 [ 1268.817712][ T4458] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 1268.817905][ T4458] ? rcu_read_lock_any_held+0x43/0xb0 [ 1268.818075][ T4458] ? validate_chain+0x1fe/0xae0 [ 1268.818249][ T4458] ? is_bpf_text_address+0x67/0x120 [ 1268.818428][ T4458] ? __pfx_validate_chain+0x10/0x10 [ 1268.818594][ T4458] ? hlock_class+0x4e/0x130 [ 1268.818763][ T4458] ? mark_lock+0x38/0x3e0 [ 1268.818894][ T4458] ? __lock_acquire+0xb3f/0x1580 [ 1268.819073][ T4458] ? find_held_lock+0x2c/0x110 [ 1268.819248][ T4458] ? ipv6_setsockopt+0x7f/0xe0 [ 1268.819411][ T4458] ipv6_setsockopt+0x7f/0xe0 [ 1268.819582][ T4458] rawv6_setsockopt+0xb7/0x550 [ 1268.819757][ T4458] ? __pfx_rawv6_setsockopt+0x10/0x10 [ 1268.819923][ T4458] ? __lock_acquire+0xb3f/0x1580 [ 1268.820092][ T4458] ? kfree+0x2d/0x340 [ 1268.820227][ T4458] do_sock_setsockopt+0x149/0x3a0 [ 1268.820402][ T4458] ? __pfx_do_sock_setsockopt+0x10/0x10 [ 1268.820570][ T4458] ? __lock_release+0x103/0x460 [ 1268.820742][ T4458] ? fd_install+0x1d1/0x5a0 [ 1268.820919][ T4458] ? trace_lock_acquire+0x14d/0x1f0 [ 1268.821096][ T4458] ? fdget+0x52/0x1e0 [ 1268.821230][ T4458] __sys_setsockopt+0x104/0x1a0 [ 1268.821404][ T4458] ? __pfx___sys_setsockopt+0x10/0x10 [ 1268.821571][ T4458] ? __sys_socket+0x168/0x1e0 [ 1268.821744][ T4458] ? __pfx___sys_socket+0x10/0x10 [ 1268.821917][ T4458] ? do_user_addr_fault+0x374/0xe30 [ 1268.822095][ T4458] __x64_sys_setsockopt+0xbd/0x160 [ 1268.822263][ T4458] ? lockdep_hardirqs_on_prepare+0x275/0x410 [ 1268.822484][ T4458] do_syscall_64+0xc1/0x1d0 [ 1268.822658][ T4458] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 1268.822874][ T4458] RIP: 0033:0x7f8b7c05491e [ 1268.823053][ T4458] 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 [ 1268.823637][ T4458] RSP: 002b:00007ffe8f54ca08 EFLAGS: 00000246 ORIG_RAX: 0000000000000036 [ 1268.823895][ T4458] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f8b7c05491e [ 1268.824164][ T4458] RDX: 00000000000000c8 RSI: 0000000000000029 RDI: 0000000000000008 [ 1268.824416][ T4458] RBP: 0000000000000008 R08: 0000000000000004 R09: 0000000004e7b010 [ 1268.824665][ T4458] R10: 00007ffe8f54ca2c R11: 0000000000000246 R12: 0000000000000000 [ 1268.824915][ T4458] R13: 0000000000402650 R14: 0000000000411dd8 R15: 00007f8b7c159000 [ 1268.825179][ T4458] [ 1268.829097][ T4458] veth0: entered allmulticast mode [ 1268.830328][ T4458] veth1: entered allmulticast mode [ 1268.830964][ T4458] veth2: entered allmulticast mode [ 1268.831823][ T4458] veth3: entered allmulticast mode [ 1268.832404][ T4458] veth4: entered allmulticast mode [ 1268.832751][ T4458] veth5: entered allmulticast mode [ 1279.752872][ T4544] GACT probability NOT on [ 1296.239997][ T4458] veth0: left allmulticast mode [ 1296.240537][ T4458] veth1: left allmulticast mode [ 1296.240920][ T4458] veth2: left allmulticast mode [ 1296.241312][ T4458] veth3: left allmulticast mode [ 1296.241626][ T4458] veth4: left allmulticast mode [ 1296.242000][ T4458] veth5: left allmulticast mode