[ 11.449816][ T282] GACT probability NOT on [ 12.010572][ T291] [ 12.010919][ T291] ============================= [ 12.011182][ T291] WARNING: suspicious RCU usage [ 12.011368][ T291] 6.14.0-rc6-virtme #1 Not tainted [ 12.011689][ T291] ----------------------------- [ 12.011889][ T291] ./include/net/net_namespace.h:418 suspicious rcu_dereference_check() usage! [ 12.012266][ T291] [ 12.012266][ T291] other info that might help us debug this: [ 12.012266][ T291] [ 12.012728][ T291] [ 12.012728][ T291] rcu_scheduler_active = 2, debug_locks = 1 [ 12.013043][ T291] 1 lock held by mausezahn/291: [ 12.013227][ T291] #0: ffffffff8676f640 (rcu_read_lock_bh){....}-{1:3}, at: __dev_queue_xmit+0x1f5/0x18d0 [ 12.013558][ T291] [ 12.013558][ T291] stack backtrace: [ 12.013814][ T291] CPU: 2 UID: 0 PID: 291 Comm: mausezahn Not tainted 6.14.0-rc6-virtme #1 [ 12.013819][ T291] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 12.013821][ T291] Call Trace: [ 12.013823][ T291] [ 12.013826][ T291] dump_stack_lvl+0xb0/0xd0 [ 12.013836][ T291] lockdep_rcu_suspicious+0x1ea/0x280 [ 12.013849][ T291] dev_hard_start_xmit+0x2fc/0x3f0 [ 12.013860][ T291] __dev_queue_xmit+0xfaa/0x18d0 [ 12.013864][ T291] ? _copy_from_iter+0x1d2/0x12e0 [ 12.013884][ T291] ? __pfx___dev_queue_xmit+0x10/0x10 [ 12.013889][ T291] ? packet_parse_headers+0x243/0x9d0 [ 12.013901][ T291] ? __pfx_sock_alloc_send_pskb+0x10/0x10 [ 12.013908][ T291] ? __pfx_packet_parse_headers+0x10/0x10 [ 12.013913][ T291] ? skb_copy_datagram_from_iter+0xe6/0x6e0 [ 12.013921][ T291] ? dev_get_by_index+0xb2/0x190 [ 12.013932][ T291] packet_snd+0xd0d/0x19c0 [ 12.013945][ T291] ? __lock_release+0x103/0x460 [ 12.013948][ T291] ? __might_fault+0x11b/0x170 [ 12.013956][ T291] ? __pfx_packet_snd+0x10/0x10 [ 12.013958][ T291] ? trace_lock_acquire+0x14c/0x1f0 [ 12.013961][ T291] ? __might_fault+0x11b/0x170 [ 12.013968][ T291] ? lock_acquire+0x32/0xc0 [ 12.013974][ T291] ? __might_fault+0x11b/0x170 [ 12.013985][ T291] __sys_sendto+0x3c3/0x450 [ 12.013992][ T291] ? __pfx___sys_sendto+0x10/0x10 [ 12.014008][ T291] ? sock_ioctl+0x3b6/0x590 [ 12.014011][ T291] ? _copy_to_user+0x5c/0x80 [ 12.014018][ T291] ? __pfx_put_timespec64+0x10/0x10 [ 12.014035][ T291] ? posix_cpu_clock_get+0xe1/0x240 [ 12.014046][ T291] ? __x64_sys_clock_gettime+0x17a/0x200 [ 12.014052][ T291] ? __pfx___x64_sys_clock_gettime+0x10/0x10 [ 12.014060][ T291] __x64_sys_sendto+0xe0/0x1c0 [ 12.014064][ T291] ? lockdep_hardirqs_on_prepare+0x275/0x410 [ 12.014069][ T291] do_syscall_64+0xc1/0x1d0 [ 12.014078][ T291] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 12.014085][ T291] RIP: 0033:0x7f192f1b2a4a [ 12.014090][ T291] 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 [ 12.014093][ T291] RSP: 002b:00007ffdeeb84368 EFLAGS: 00000246 ORIG_RAX: 000000000000002c [ 12.014097][ T291] RAX: ffffffffffffffda RBX: 000000001da329d0 RCX: 00007f192f1b2a4a [ 12.014099][ T291] RDX: 0000000000000064 RSI: 000000001da325c2 RDI: 0000000000000005 [ 12.014101][ T291] RBP: 000000001da325c2 R08: 00007ffdeeb84370 R09: 0000000000000014 [ 12.014103][ T291] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 12.014105][ T291] R13: 0000000000000064 R14: 00007ffdeeb84370 R15: 0000000000000000 [ 12.014122][ T291]