[ 499.914761][ T3057] [ 499.914902][ T3057] ============================= [ 499.915079][ T3057] WARNING: suspicious RCU usage [ 499.915244][ T3057] 6.12.0-rc6-virtme #1 Not tainted [ 499.915397][ T3057] ----------------------------- [ 499.915574][ T3057] net/ipv6/ip6mr.c:132 RCU-list traversed in non-reader section!! [ 499.915797][ T3057] [ 499.915797][ T3057] other info that might help us debug this: [ 499.915797][ T3057] [ 499.916096][ T3057] [ 499.916096][ T3057] rcu_scheduler_active = 2, debug_locks = 1 [ 499.916316][ T3057] no locks held by smcrouted/3057. [ 499.916481][ T3057] [ 499.916481][ T3057] stack backtrace: [ 499.916672][ T3057] CPU: 3 UID: 0 PID: 3057 Comm: smcrouted Not tainted 6.12.0-rc6-virtme #1 [ 499.916942][ T3057] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 499.917277][ T3057] Call Trace: [ 499.917399][ T3057] [ 499.917485][ T3057] dump_stack_lvl+0xb0/0xd0 [ 499.917648][ T3057] lockdep_rcu_suspicious+0x1ea/0x280 [ 499.917811][ T3057] ip6mr_get_table+0x142/0x190 [ 499.917972][ T3057] ip6_mroute_setsockopt+0x185/0x12d0 [ 499.918127][ T3057] ? __pfx_ip6_mroute_setsockopt+0x10/0x10 [ 499.918328][ T3057] ? __lock_release+0x103/0x460 [ 499.918481][ T3057] ? __might_fault+0x11b/0x170 [ 499.918635][ T3057] ? trace_lock_acquire+0x14d/0x1f0 [ 499.918791][ T3057] ? __might_fault+0xc3/0x170 [ 499.918938][ T3057] ? lock_acquire+0x32/0xc0 [ 499.919098][ T3057] ? __might_fault+0xc3/0x170 [ 499.919251][ T3057] ? __might_fault+0x11b/0x170 [ 499.919408][ T3057] do_ipv6_setsockopt+0x705/0x34e0 [ 499.919561][ T3057] ? __lock_release+0xe0/0x460 [ 499.919713][ T3057] ? __pfx_do_ipv6_setsockopt+0x10/0x10 [ 499.919863][ T3057] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 499.920039][ T3057] ? rcu_read_lock_any_held+0x43/0xb0 [ 499.920200][ T3057] ? validate_chain+0x1fe/0xae0 [ 499.920373][ T3057] ? is_bpf_text_address+0x67/0x120 [ 499.920531][ T3057] ? __pfx_validate_chain+0x10/0x10 [ 499.920704][ T3057] ? hlock_class+0x4e/0x130 [ 499.920862][ T3057] ? mark_lock+0x38/0x3e0 [ 499.920996][ T3057] ? __lock_acquire+0xb3f/0x1580 [ 499.921171][ T3057] ? find_held_lock+0x2c/0x110 [ 499.921340][ T3057] ? ipv6_setsockopt+0x7f/0xe0 [ 499.921509][ T3057] ipv6_setsockopt+0x7f/0xe0 [ 499.921663][ T3057] rawv6_setsockopt+0xb7/0x550 [ 499.921836][ T3057] ? __pfx_rawv6_setsockopt+0x10/0x10 [ 499.921990][ T3057] ? __lock_acquire+0xb3f/0x1580 [ 499.922183][ T3057] ? kfree+0x2d/0x340 [ 499.922306][ T3057] do_sock_setsockopt+0x149/0x3a0 [ 499.922458][ T3057] ? __pfx_do_sock_setsockopt+0x10/0x10 [ 499.922610][ T3057] ? __lock_release+0x103/0x460 [ 499.922757][ T3057] ? fd_install+0x1d1/0x5a0 [ 499.922910][ T3057] ? trace_lock_acquire+0x14d/0x1f0 [ 499.923067][ T3057] ? fdget+0x52/0x1e0 [ 499.923203][ T3057] __sys_setsockopt+0x104/0x1a0 [ 499.923357][ T3057] ? __pfx___sys_setsockopt+0x10/0x10 [ 499.923527][ T3057] ? __sys_socket+0x168/0x1e0 [ 499.923679][ T3057] ? __pfx___sys_socket+0x10/0x10 [ 499.923856][ T3057] __x64_sys_setsockopt+0xbd/0x160 [ 499.924005][ T3057] ? lockdep_hardirqs_on_prepare+0x275/0x410 [ 499.924190][ T3057] do_syscall_64+0xc1/0x1d0 [ 499.924365][ T3057] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 499.924592][ T3057] RIP: 0033:0x7f03d883591e [ 499.924812][ T3057] 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 [ 499.925417][ T3057] RSP: 002b:00007ffceb287388 EFLAGS: 00000246 ORIG_RAX: 0000000000000036 [ 499.925668][ T3057] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f03d883591e [ 499.925908][ T3057] RDX: 00000000000000c8 RSI: 0000000000000029 RDI: 0000000000000008 [ 499.926152][ T3057] RBP: 0000000000000008 R08: 0000000000000004 R09: 0000000000000000 [ 499.926390][ T3057] R10: 00007ffceb2873ac R11: 0000000000000246 R12: 0000000000000000 [ 499.926638][ T3057] R13: 0000000000402650 R14: 0000000000411dd8 R15: 00007f03d893a000 [ 499.926902][ T3057] [ 499.934972][ T3057] veth0: entered allmulticast mode [ 499.935535][ T3057] veth1: entered allmulticast mode [ 499.935877][ T3057] veth2: entered allmulticast mode [ 499.936208][ T3057] veth3: entered allmulticast mode [ 499.936534][ T3057] veth4: entered allmulticast mode [ 499.936863][ T3057] veth5: entered allmulticast mode [ 544.840167][ T3057] veth0: left allmulticast mode [ 544.840537][ T3057] veth1: left allmulticast mode [ 544.840791][ T3057] veth2: left allmulticast mode [ 544.841029][ T3057] veth3: left allmulticast mode [ 544.841254][ T3057] veth4: left allmulticast mode [ 544.841514][ T3057] veth5: left allmulticast mode