[ 10.884607][ T252] ip (252) used greatest stack depth: 23120 bytes left [ 22.341898][ T358] GACT probability NOT on [ 22.588006][ T359] [ 22.588361][ T359] ============================= [ 22.588541][ T359] WARNING: suspicious RCU usage [ 22.588704][ T359] 6.14.0-rc6-virtme #1 Not tainted [ 22.588875][ T359] ----------------------------- [ 22.589217][ T359] ./include/net/net_namespace.h:418 suspicious rcu_dereference_check() usage! [ 22.589490][ T359] [ 22.589490][ T359] other info that might help us debug this: [ 22.589490][ T359] [ 22.589792][ T359] [ 22.589792][ T359] rcu_scheduler_active = 2, debug_locks = 1 [ 22.590025][ T359] 1 lock held by mausezahn/359: [ 22.590207][ T359] #0: ffffffff9755b5c0 (rcu_read_lock_bh){....}-{1:3}, at: __dev_queue_xmit+0x1f0/0x18d0 [ 22.590506][ T359] [ 22.590506][ T359] stack backtrace: [ 22.590705][ T359] CPU: 2 UID: 0 PID: 359 Comm: mausezahn Not tainted 6.14.0-rc6-virtme #1 [ 22.590710][ T359] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 22.590712][ T359] Call Trace: [ 22.590713][ T359] [ 22.590716][ T359] dump_stack_lvl+0xb0/0xd0 [ 22.590723][ T359] lockdep_rcu_suspicious+0x1ea/0x280 [ 22.590734][ T359] dev_hard_start_xmit+0x2fc/0x3f0 [ 22.590745][ T359] __dev_queue_xmit+0xfaf/0x18d0 [ 22.590759][ T359] ? __pfx___dev_queue_xmit+0x10/0x10 [ 22.590763][ T359] ? packet_parse_headers+0x231/0x9c0 [ 22.590772][ T359] ? __pfx_sock_alloc_send_pskb+0x10/0x10 [ 22.590778][ T359] ? __pfx_packet_parse_headers+0x10/0x10 [ 22.590782][ T359] ? skb_copy_datagram_from_iter+0xe6/0x6f0 [ 22.590788][ T359] ? dev_get_by_index+0xb2/0x190 [ 22.590799][ T359] packet_snd+0xd0c/0x19d0 [ 22.590810][ T359] ? __lock_release+0x103/0x460 [ 22.590814][ T359] ? __might_fault+0x11b/0x170 [ 22.590821][ T359] ? __pfx_packet_snd+0x10/0x10 [ 22.590823][ T359] ? trace_lock_acquire+0x14c/0x1f0 [ 22.590826][ T359] ? __might_fault+0x11b/0x170 [ 22.590832][ T359] ? lock_acquire+0x32/0xc0 [ 22.590839][ T359] ? __might_fault+0x11b/0x170 [ 22.590849][ T359] __sys_sendto+0x3c3/0x450 [ 22.590855][ T359] ? __pfx___sys_sendto+0x10/0x10 [ 22.590870][ T359] ? sock_ioctl+0x3b6/0x590 [ 22.590879][ T359] ? __pfx___up_read+0x10/0x10 [ 22.590888][ T359] ? do_user_addr_fault+0x374/0xe30 [ 22.590898][ T359] ? do_user_addr_fault+0x374/0xe30 [ 22.590905][ T359] __x64_sys_sendto+0xe0/0x1c0 [ 22.590910][ T359] ? lockdep_hardirqs_on_prepare+0x275/0x410 [ 22.590915][ T359] do_syscall_64+0xc1/0x1d0 [ 22.590922][ T359] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 22.590927][ T359] RIP: 0033:0x7f167e9fba4a [ 22.590932][ T359] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb b8 0f 1f 00 f3 0f 1e fa 41 89 ca 64 8b 04 25 18 00 00 00 85 c0 75 15 b8 2c 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 7e c3 0f 1f 44 00 00 41 54 48 83 ec 30 44 89 [ 22.590934][ T359] RSP: 002b:00007ffc47b4cac8 EFLAGS: 00000246 ORIG_RAX: 000000000000002c [ 22.590938][ T359] RAX: ffffffffffffffda RBX: 00000000270be9d0 RCX: 00007f167e9fba4a [ 22.590940][ T359] RDX: 0000000000000412 RSI: 00000000270bf072 RDI: 0000000000000005 [ 22.590941][ T359] RBP: 00000000270bf072 R08: 00007ffc47b4cad0 R09: 0000000000000014 [ 22.590943][ T359] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 22.590945][ T359] R13: 0000000000000412 R14: 00007ffc47b4cad0 R15: 0000000000000000 [ 22.590961][ T359] [ 69.297874][ T578] Mirror/redirect action on