<div dir="ltr">Hmm...yeah, I've followed these steps:<div><br></div><div>Fresh CentOS 7.5 install</div><div>yum install git libmnl-devel elfutils-libelf-devel kernel-devel @development-tools</div><div>git clone <a href="https://git.zx2c4.com/WireGuard">https://git.zx2c4.com/WireGuard</a></div><div>cd WireGuard/src</div><div>make</div><div>make install</div><div>deploy /etc/wireguard/wg0.conf</div><div>systemctl start wg-quick@wg0</div><div>kernel panic. </div><div><br></div><div>Any additional debugging steps I can provide? This trace looks a little different, so also including it:</div><div><br></div><div><div>[ 1571.621740] ------------[ cut here ]------------</div><div>[ 1571.627195] WARNING: CPU: 1 PID: 264 at arch/x86/kernel/smp.c:127 native_smp_send_reschedule+0x65/0x70</div><div>[ 1571.637324] Modules linked in: wireguard(OE) ip6_udp_tunnel udp_tunnel bonding skx_edac intel_powerclamp coretempd</div><div>[ 1571.715278] CPU: 1 PID: 264 Comm: kworker/1:2 Tainted: G D OE ------------ 3.10.0-862.2.3.el7.x86_64 #1</div><div>[ 1571.726478] Hardware name: Dell Inc. PowerEdge R640/0W23H8, BIOS 1.3.7 02/08/2018</div><div>[ 1571.734820] Workqueue: wg-crypt-wg0 packet_rx_worker [wireguard]</div><div>[ 1571.741700] Call Trace:</div><div>[ 1571.744990] <IRQ> [<ffffffffa7d0d78e>] dump_stack+0x19/0x1b</div><div>[ 1571.751604] [<ffffffffa76916d8>] __warn+0xd8/0x100</div><div>[ 1571.757319] [<ffffffffa769181d>] warn_slowpath_null+0x1d/0x20</div><div>[ 1571.763975] [<ffffffffa7654245>] native_smp_send_reschedule+0x65/0x70</div><div>[ 1571.771325] [<ffffffffa76dd791>] trigger_load_balance+0x191/0x280</div><div>[ 1571.778320] [<ffffffffa76d1f75>] ? sched_clock_cpu+0x85/0xc0</div><div>[ 1571.784883] [<ffffffffa76cd41a>] scheduler_tick+0x10a/0x150</div><div>[ 1571.791355] [<ffffffffa7701420>] ? tick_sched_do_timer+0x50/0x50</div><div>[ 1571.798254] [<ffffffffa76a4825>] update_process_times+0x65/0x80</div><div>[ 1571.805063] [<ffffffffa7701220>] tick_sched_handle+0x30/0x70</div><div>[ 1571.811608] [<ffffffffa7701459>] tick_sched_timer+0x39/0x80</div><div>[ 1571.818060] [<ffffffffa76beff6>] __hrtimer_run_queues+0xd6/0x260</div><div>[ 1571.824937] [<ffffffffa76bf58f>] hrtimer_interrupt+0xaf/0x1d0</div><div>[ 1571.831549] [<ffffffffa76577fb>] local_apic_timer_interrupt+0x3b/0x60</div><div>[ 1571.838863] [<ffffffffa7d24063>] smp_apic_timer_interrupt+0x43/0x60</div><div>[ 1571.846003] [<ffffffffa7d207b2>] apic_timer_interrupt+0x162/0x170</div><div>[ 1571.852973] <EOI> [<ffffffffa7d07b80>] ? panic+0x1d8/0x21f</div><div>[ 1571.859455] [<ffffffffa7d17763>] oops_end+0xd3/0xe0</div><div>[ 1571.865223] [<ffffffffa762e96b>] die+0x4b/0x70</div><div>[ 1571.870555] [<ffffffffa7d16eb0>] do_trap+0x60/0x170</div><div>[ 1571.876314] [<ffffffffa762b284>] do_invalid_op+0xb4/0x130</div><div>[ 1571.882591] [<ffffffffa77f6bbc>] ? kfree+0x13c/0x140</div><div>[ 1571.888435] [<ffffffffa76d3838>] ? __enqueue_entity+0x78/0x80</div><div>[ 1571.895059] [<ffffffffa76da2fc>] ? enqueue_entity+0x26c/0xb60</div><div>[ 1571.901676] [<ffffffffa795bb78>] ? prandom_u32+0x18/0x20</div><div>[ 1571.907858] [<ffffffffa7bd60c5>] ? skb_release_data+0xf5/0x140</div><div>[ 1571.914561] [<ffffffffa7d22aee>] invalid_op+0x1e/0x30</div><div>[ 1571.920479] [<ffffffffa7bd60c5>] ? skb_release_data+0xf5/0x140</div><div>[ 1571.927164] [<ffffffffa77f6bbc>] ? kfree+0x13c/0x140</div><div>[ 1571.932962] [<ffffffffa7bd60c5>] skb_release_data+0xf5/0x140</div><div>[ 1571.939446] [<ffffffffa7bd6134>] skb_release_all+0x24/0x30</div><div>[ 1571.945743] [<ffffffffa7bd659c>] consume_skb+0x2c/0x90</div><div>[ 1571.951700] [<ffffffffc08eff35>] packet_rx_worker+0x2d5/0x7f0 [wireguard]</div><div>[ 1571.959302] [<ffffffffa76b2dff>] process_one_work+0x17f/0x440</div><div>[ 1571.965847] [<ffffffffa76b3ac6>] worker_thread+0x126/0x3c0</div><div>[ 1571.972117] [<ffffffffa76b39a0>] ? manage_workers.isra.24+0x2a0/0x2a0</div><div>[ 1571.979327] [<ffffffffa76bae31>] kthread+0xd1/0xe0</div><div>[ 1571.984873] [<ffffffffa76bad60>] ? insert_kthread_work+0x40/0x40</div><div>[ 1571.991611] [<ffffffffa7d1f5dd>] ret_from_fork_nospec_begin+0x7/0x21</div><div>[ 1571.998687] [<ffffffffa76bad60>] ? insert_kthread_work+0x40/0x40</div><div>[ 1572.005389] ---[ end trace 5ef54fbe37d13ebd ]---</div></div><div><br></div><div><br><br><div class="gmail_quote"><div dir="ltr">On Thu, May 10, 2018 at 4:25 PM Jason A. Donenfeld <<a href="mailto:Jason@zx2c4.com">Jason@zx2c4.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Hi Henry,<br>
<br>
Here's a transcript of things working fine with the latest master<br>
branch: <a href="https://xn--4db.cc/GEDdGn4N" rel="noreferrer" target="_blank">https://א.cc/GEDdGn4N</a><br>
<br>
I'm still playing to see if I can reproduce your crash.<br>
<br>
Jason<br>
</blockquote></div></div></div>-- <br><div dir="ltr" class="gmail_signature" data-smartmail="gmail_signature"><div dir="ltr"><font color="#808080" style="line-height:normal;font-family:cantarell">Henry Snow | Director, Site Reliability Engineering</font><div><font color="#808080" style="line-height:normal;font-family:cantarell"><a href="http://exelate.com/">eXelate, a Nielsen company</a></font><br style="line-height:normal;color:rgb(0,0,0);font-family:cantarell"><font color="#808080" style="line-height:normal;font-family:cantarell">E: <a href="mailto:henry.snow@nielsen.com">henry.snow@nielsen.com</a> | </font><span style="color:rgb(128,128,128);font-family:cantarell;line-height:normal">M: 347.366.2700</span><br style="line-height:normal;color:rgb(0,0,0);font-family:cantarell"><font color="#808080" style="line-height:normal;font-family:cantarell">675 6th Ave, 3rd Floor, New York, NY 10010 </font><br></div></div></div>