[ 1711.520171][ T8152] [ 1711.520314][ T8152] ============================= [ 1711.521051][ T8152] WARNING: suspicious RCU usage [ 1711.521230][ T8152] 6.12.0-rc6-virtme #1 Not tainted [ 1711.521401][ T8152] ----------------------------- [ 1711.521558][ T8152] net/ipv6/ip6mr.c:132 RCU-list traversed in non-reader section!! [ 1711.521802][ T8152] [ 1711.521802][ T8152] other info that might help us debug this: [ 1711.521802][ T8152] [ 1711.522112][ T8152] [ 1711.522112][ T8152] rcu_scheduler_active = 2, debug_locks = 1 [ 1711.522372][ T8152] no locks held by smcrouted/8152. [ 1711.522536][ T8152] [ 1711.522536][ T8152] stack backtrace: [ 1711.522757][ T8152] CPU: 2 UID: 0 PID: 8152 Comm: smcrouted Not tainted 6.12.0-rc6-virtme #1 [ 1711.523035][ T8152] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 1711.523389][ T8152] Call Trace: [ 1711.523516][ T8152] [ 1711.523602][ T8152] dump_stack_lvl+0xb0/0xd0 [ 1711.523783][ T8152] lockdep_rcu_suspicious+0x1ea/0x280 [ 1711.523944][ T8152] ip6mr_get_table+0x142/0x190 [ 1711.524108][ T8152] ip6_mroute_setsockopt+0x185/0x12d0 [ 1711.524270][ T8152] ? __pfx_ip6_mroute_setsockopt+0x10/0x10 [ 1711.524480][ T8152] ? __lock_release+0x103/0x460 [ 1711.524649][ T8152] ? __might_fault+0x11b/0x170 [ 1711.524810][ T8152] ? trace_lock_acquire+0x14d/0x1f0 [ 1711.524978][ T8152] ? __might_fault+0xc3/0x170 [ 1711.525145][ T8152] ? lock_acquire+0x32/0xc0 [ 1711.525305][ T8152] ? __might_fault+0xc3/0x170 [ 1711.525461][ T8152] ? __might_fault+0x11b/0x170 [ 1711.525631][ T8152] do_ipv6_setsockopt+0x705/0x34e0 [ 1711.525794][ T8152] ? __lock_release+0xe0/0x460 [ 1711.525959][ T8152] ? __pfx_do_ipv6_setsockopt+0x10/0x10 [ 1711.526115][ T8152] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 1711.526278][ T8152] ? rcu_read_lock_any_held+0x43/0xb0 [ 1711.526436][ T8152] ? validate_chain+0x1fe/0xae0 [ 1711.526602][ T8152] ? is_bpf_text_address+0x67/0x120 [ 1711.526770][ T8152] ? __pfx_validate_chain+0x10/0x10 [ 1711.526929][ T8152] ? hlock_class+0x4e/0x130 [ 1711.527099][ T8152] ? mark_lock+0x38/0x3e0 [ 1711.527226][ T8152] ? __lock_acquire+0xb3f/0x1580 [ 1711.527394][ T8152] ? find_held_lock+0x2c/0x110 [ 1711.527557][ T8152] ? ipv6_setsockopt+0x7f/0xe0 [ 1711.527711][ T8152] ipv6_setsockopt+0x7f/0xe0 [ 1711.527876][ T8152] rawv6_setsockopt+0xb7/0x550 [ 1711.528039][ T8152] ? __pfx_rawv6_setsockopt+0x10/0x10 [ 1711.528201][ T8152] ? __lock_acquire+0xb3f/0x1580 [ 1711.528371][ T8152] ? kfree+0x2d/0x340 [ 1711.528501][ T8152] do_sock_setsockopt+0x149/0x3a0 [ 1711.528662][ T8152] ? __pfx_do_sock_setsockopt+0x10/0x10 [ 1711.528821][ T8152] ? __lock_release+0x103/0x460 [ 1711.528981][ T8152] ? fd_install+0x1d1/0x5a0 [ 1711.529144][ T8152] ? trace_lock_acquire+0x14d/0x1f0 [ 1711.529307][ T8152] ? fdget+0x52/0x1e0 [ 1711.529428][ T8152] __sys_setsockopt+0x104/0x1a0 [ 1711.529598][ T8152] ? __pfx___sys_setsockopt+0x10/0x10 [ 1711.529801][ T8152] ? __sys_socket+0x168/0x1e0 [ 1711.529964][ T8152] ? __pfx___sys_socket+0x10/0x10 [ 1711.530124][ T8152] __x64_sys_setsockopt+0xbd/0x160 [ 1711.530277][ T8152] ? lockdep_hardirqs_on_prepare+0x275/0x410 [ 1711.530469][ T8152] do_syscall_64+0xc1/0x1d0 [ 1711.530634][ T8152] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 1711.530824][ T8152] RIP: 0033:0x7f742504491e [ 1711.530988][ T8152] 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 [ 1711.531545][ T8152] RSP: 002b:00007fff431b9468 EFLAGS: 00000246 ORIG_RAX: 0000000000000036 [ 1711.531783][ T8152] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f742504491e [ 1711.532017][ T8152] RDX: 00000000000000c8 RSI: 0000000000000029 RDI: 0000000000000008 [ 1711.532269][ T8152] RBP: 0000000000000008 R08: 0000000000000004 R09: 0000000000000000 [ 1711.532505][ T8152] R10: 00007fff431b948c R11: 0000000000000246 R12: 0000000000000000 [ 1711.532741][ T8152] R13: 0000000000402650 R14: 0000000000411dd8 R15: 00007f7425149000 [ 1711.532984][ T8152] [ 1711.540996][ T8152] veth0: entered allmulticast mode [ 1711.541903][ T8152] veth1: entered allmulticast mode [ 1711.542488][ T8152] veth2: entered allmulticast mode [ 1711.543043][ T8152] veth3: entered allmulticast mode [ 1711.546090][ T8152] veth4: entered allmulticast mode [ 1711.546664][ T8152] veth5: entered allmulticast mode [ 1759.455226][ T8152] veth0: left allmulticast mode [ 1759.455592][ T8152] veth1: left allmulticast mode [ 1759.455861][ T8152] veth2: left allmulticast mode [ 1759.456121][ T8152] veth3: left allmulticast mode [ 1759.456368][ T8152] veth4: left allmulticast mode [ 1759.456605][ T8152] veth5: left allmulticast mode