Re: port-xen/53487

[Dennis Lindroos <denafcm%gmail.com@localhost>]

The following reply was made to PR port-xen/53487; it has been noted by GNATS.

From: Dennis Lindroos <denafcm%gmail.com@localhost>
To: gnats-bugs%netbsd.org@localhost
Cc: 
Subject: Re: port-xen/53487
Date: Sat, 11 Aug 2018 13:11:25 +0300

 Hi guys,
 
 After upgrading my Xen DOM0 to NetBSD/amd64 8.0 myself i've got
 exactly the same fatal page fault with a Linux domU (Arch Linux,
 kernel 4.17.2..) and i tracked down this PR.
 
 I hacked the code in xennetback_xenbus.c in the function
 xennetback_xenbus_destroy() i noticed that with my domU, the value of
 xni_status was DISCONNECTING, thus I added matching that too:
 if (xneti->xni_status == CONNECTED || xneti->xni_status == DISCONNECTING) {
 
 Now on domU shutdown the vif interface is removed or atleast there are
 no more panic traps. :)
 Didn't produce anything in "xl dmesg" even with the xen-debug hypervisor.
 
 Xen version is 4.8.3 and tested on two different amd64-arch machines..
 
 TIA,
 Dennis.