[ 1296.462250][T17898] gre: GRE over IPv4 demultiplexor driver [ 1296.519371][T17898] ip6_gre: GRE over IPv6 tunneling driver [ 1306.045381][T17975] GACT probability NOT on [ 1306.416296][T17978] [ 1306.416586][T17978] ============================= [ 1306.416759][T17978] WARNING: suspicious RCU usage [ 1306.416951][T17978] 6.14.0-rc6-virtme #1 Not tainted [ 1306.417123][T17978] ----------------------------- [ 1306.417546][T17978] ./include/net/net_namespace.h:418 suspicious rcu_dereference_check() usage! [ 1306.417819][T17978] [ 1306.417819][T17978] other info that might help us debug this: [ 1306.417819][T17978] [ 1306.418151][T17978] [ 1306.418151][T17978] rcu_scheduler_active = 2, debug_locks = 1 [ 1306.418387][T17978] 1 lock held by mausezahn/17978: [ 1306.418551][T17978] #0: ffffffff9115b5c0 (rcu_read_lock_bh){....}-{1:3}, at: __dev_queue_xmit+0x1f0/0x18d0 [ 1306.418844][T17978] [ 1306.418844][T17978] stack backtrace: [ 1306.419038][T17978] CPU: 0 UID: 0 PID: 17978 Comm: mausezahn Not tainted 6.14.0-rc6-virtme #1 [ 1306.419043][T17978] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 1306.419045][T17978] Call Trace: [ 1306.419047][T17978] [ 1306.419050][T17978] dump_stack_lvl+0xb0/0xd0 [ 1306.419061][T17978] lockdep_rcu_suspicious+0x1ea/0x280 [ 1306.419073][T17978] dev_hard_start_xmit+0x2fc/0x3f0 [ 1306.419083][T17978] __dev_queue_xmit+0xfaf/0x18d0 [ 1306.419098][T17978] ? __pfx___dev_queue_xmit+0x10/0x10 [ 1306.419102][T17978] ? packet_parse_headers+0x231/0x9c0 [ 1306.419111][T17978] ? __pfx_sock_alloc_send_pskb+0x10/0x10 [ 1306.419117][T17978] ? __pfx_packet_parse_headers+0x10/0x10 [ 1306.419121][T17978] ? skb_copy_datagram_from_iter+0xe6/0x6f0 [ 1306.419127][T17978] ? dev_get_by_index+0xb2/0x190 [ 1306.419138][T17978] packet_snd+0xd0c/0x19d0 [ 1306.419150][T17978] ? __lock_release+0x103/0x460 [ 1306.419154][T17978] ? __might_fault+0x11b/0x170 [ 1306.419161][T17978] ? __pfx_packet_snd+0x10/0x10 [ 1306.419163][T17978] ? trace_lock_acquire+0x14c/0x1f0 [ 1306.419166][T17978] ? __might_fault+0x11b/0x170 [ 1306.419173][T17978] ? lock_acquire+0x32/0xc0 [ 1306.419179][T17978] ? __might_fault+0x11b/0x170 [ 1306.419191][T17978] __sys_sendto+0x3c3/0x450 [ 1306.419197][T17978] ? __pfx___sys_sendto+0x10/0x10 [ 1306.419211][T17978] ? sock_ioctl+0x3b6/0x590 [ 1306.419221][T17978] ? __pfx___up_read+0x10/0x10 [ 1306.419230][T17978] ? do_user_addr_fault+0x374/0xe30 [ 1306.419240][T17978] ? do_user_addr_fault+0x374/0xe30 [ 1306.419247][T17978] __x64_sys_sendto+0xe0/0x1c0 [ 1306.419251][T17978] ? lockdep_hardirqs_on_prepare+0x275/0x410 [ 1306.419256][T17978] do_syscall_64+0xc1/0x1d0 [ 1306.419263][T17978] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 1306.419268][T17978] RIP: 0033:0x7f454ba83a4a [ 1306.419273][T17978] 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 [ 1306.419276][T17978] RSP: 002b:00007ffe7a40d588 EFLAGS: 00000246 ORIG_RAX: 000000000000002c [ 1306.419280][T17978] RAX: ffffffffffffffda RBX: 0000000023f909d0 RCX: 00007f454ba83a4a [ 1306.419282][T17978] RDX: 0000000000000062 RSI: 0000000023f905c2 RDI: 0000000000000005 [ 1306.419284][T17978] RBP: 0000000023f905c2 R08: 00007ffe7a40d590 R09: 0000000000000014 [ 1306.419286][T17978] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 1306.419288][T17978] R13: 0000000000000062 R14: 00007ffe7a40d590 R15: 0000000000000000 [ 1306.419304][T17978]