[ 187.873773][ T2748] GACT probability NOT on [ 188.405390][ T2758] [ 188.405757][ T2758] ============================= [ 188.406042][ T2758] WARNING: suspicious RCU usage [ 188.406251][ T2758] 6.14.0-rc6-virtme #1 Not tainted [ 188.406757][ T2758] ----------------------------- [ 188.406957][ T2758] ./include/net/net_namespace.h:418 suspicious rcu_dereference_check() usage! [ 188.407252][ T2758] [ 188.407252][ T2758] other info that might help us debug this: [ 188.407252][ T2758] [ 188.407599][ T2758] [ 188.407599][ T2758] rcu_scheduler_active = 2, debug_locks = 1 [ 188.407875][ T2758] 1 lock held by mausezahn/2758: [ 188.408057][ T2758] #0: ffffffffb2d6f640 (rcu_read_lock_bh){....}-{1:3}, at: __dev_queue_xmit+0x1f5/0x18d0 [ 188.408382][ T2758] [ 188.408382][ T2758] stack backtrace: [ 188.408599][ T2758] CPU: 2 UID: 0 PID: 2758 Comm: mausezahn Not tainted 6.14.0-rc6-virtme #1 [ 188.408603][ T2758] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 188.408606][ T2758] Call Trace: [ 188.408608][ T2758] [ 188.408610][ T2758] dump_stack_lvl+0xb0/0xd0 [ 188.408619][ T2758] lockdep_rcu_suspicious+0x1ea/0x280 [ 188.408630][ T2758] dev_hard_start_xmit+0x2fc/0x3f0 [ 188.408642][ T2758] __dev_queue_xmit+0xfaa/0x18d0 [ 188.408646][ T2758] ? _copy_from_iter+0x1d2/0x12e0 [ 188.408664][ T2758] ? __pfx___dev_queue_xmit+0x10/0x10 [ 188.408669][ T2758] ? packet_parse_headers+0x243/0x9d0 [ 188.408679][ T2758] ? __pfx_sock_alloc_send_pskb+0x10/0x10 [ 188.408686][ T2758] ? __pfx_packet_parse_headers+0x10/0x10 [ 188.408691][ T2758] ? skb_copy_datagram_from_iter+0xe6/0x6e0 [ 188.408698][ T2758] ? dev_get_by_index+0xb2/0x190 [ 188.408709][ T2758] packet_snd+0xd0d/0x19c0 [ 188.408721][ T2758] ? __lock_release+0x103/0x460 [ 188.408724][ T2758] ? __might_fault+0x11b/0x170 [ 188.408731][ T2758] ? __pfx_packet_snd+0x10/0x10 [ 188.408734][ T2758] ? trace_lock_acquire+0x14c/0x1f0 [ 188.408737][ T2758] ? __might_fault+0x11b/0x170 [ 188.408744][ T2758] ? lock_acquire+0x32/0xc0 [ 188.408750][ T2758] ? __might_fault+0x11b/0x170 [ 188.408761][ T2758] __sys_sendto+0x3c3/0x450 [ 188.408768][ T2758] ? __pfx___sys_sendto+0x10/0x10 [ 188.408784][ T2758] ? sock_ioctl+0x3b6/0x590 [ 188.408787][ T2758] ? _copy_to_user+0x5c/0x80 [ 188.408794][ T2758] ? __pfx_put_timespec64+0x10/0x10 [ 188.408802][ T2758] ? posix_cpu_clock_get+0xe1/0x240 [ 188.408811][ T2758] ? __x64_sys_clock_gettime+0x17a/0x200 [ 188.408816][ T2758] ? __pfx___x64_sys_clock_gettime+0x10/0x10 [ 188.408824][ T2758] __x64_sys_sendto+0xe0/0x1c0 [ 188.408829][ T2758] ? lockdep_hardirqs_on_prepare+0x275/0x410 [ 188.408836][ T2758] do_syscall_64+0xc1/0x1d0 [ 188.408844][ T2758] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 188.408849][ T2758] RIP: 0033:0x7f5e92896a4a [ 188.408854][ T2758] 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 [ 188.408857][ T2758] RSP: 002b:00007ffcf3f70fd8 EFLAGS: 00000246 ORIG_RAX: 000000000000002c [ 188.408861][ T2758] RAX: ffffffffffffffda RBX: 00000000225be9d0 RCX: 00007f5e92896a4a [ 188.408863][ T2758] RDX: 0000000000000064 RSI: 00000000225be5c2 RDI: 0000000000000005 [ 188.408865][ T2758] RBP: 00000000225be5c2 R08: 00007ffcf3f70fe0 R09: 0000000000000014 [ 188.408866][ T2758] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 188.408868][ T2758] R13: 0000000000000064 R14: 00007ffcf3f70fe0 R15: 0000000000000000 [ 188.408886][ T2758]