Re: kern/53939: system panics on bringing vioif(4) interface up

[yamaguchi <yamaguchi%NetBSD.org@localhost>]

The following reply was made to PR kern/53939; it has been noted by GNATS.

From: yamaguchi <yamaguchi%NetBSD.org@localhost>
To: gnats-bugs%NetBSD.org@localhost, kern-bug-people%netbsd.org@localhost,
 gnats-admin%netbsd.org@localhost, netbsd-bugs%netbsd.org@localhost
Cc: 
Subject: Re: kern/53939: system panics on bringing vioif(4) interface up
Date: Tue, 5 Feb 2019 22:11:40 +0900

 I fixed a panic related to vioif(4), and the modification
 might fix the reported panic, too.
 
  > https://mail-index.netbsd.org/source-changes/2019/02/04/msg103058.html
 
 Can you check?
 
 Thanks,
 -- yamaguchi
 
 On 2019/02/04 2:45, venture37%geeklan.co.uk@localhost wrote:
 >> Number:         53939
 >> Category:       kern
 >> Synopsis:       system panics on bringing vioif(4) interface up
 >> Confidential:   no
 >> Severity:       serious
 >> Priority:       medium
 >> Responsible:    kern-bug-people
 >> State:          open
 >> Class:          sw-bug
 >> Submitter-Id:   net
 >> Arrival-Date:   Sun Feb 03 17:45:00 +0000 2019
 >> Originator:     Sevan Janiyan
 >> Release:        8.99.30 & 8.99.33
 >> Organization:
 >> Environment:
 > amd64
 >> Description:
 > VM is a bhyve guest, upon boot the system panics with the following back trace
 >   
 > Waiting for DAD to complete for statically configured addresses...
 > [   4.3541290] uvm_fault(0xffff80253f2272e0, 0x0, 1) -> e
 > [   4.3541290] fatal page fault in supervisor mode
 > [   4.3541290] trap type 6 code 0 rip 0xffffffff80de624d cs 0x8 rflags 0x10286 cr2 0x18 ilevel 0x6 rsp 0xffff850032b209a0
 > [   4.3541290] curlwp 0xffff80255391b1a0 pid 113.1 lowest kstack 0xffff850032b1d2c0
 > [   4.3541290] panic: trap
 > [   4.3541290] cpu0: Begin traceback...
 > [   4.3634952] vpanic() at netbsd:vpanic+0x16f
 > [   4.3634952] snprintf() at netbsd:snprintf
 > [   4.3634952] startlwp() at netbsd:startlwp
 > [   4.3634952] alltraps() at netbsd:alltraps+0xc8
 > [   4.3634952] vioif_init() at netbsd:vioif_init+0x99
 > [   4.3634952] ether_ioctl() at netbsd:ether_ioctl+0x131
 > [   4.3634952] vioif_ioctl() at netbsd:vioif_ioctl+0x2f
 > [   4.3735020] in_ifinit() at netbsd:in_ifinit+0x137
 > [   4.3735020] in_control() at netbsd:in_control+0x13e6
 > [   4.3735020] udp_ioctl_wrapper() at netbsd:udp_ioctl_wrapper+0x32
 > [   4.3735020] compat_ifioctl() at netbsd:compat_ifioctl+0x12f
 > [   4.3735020] doifioctl() at netbsd:doifioctl+0xeac
 > [   4.3735020] sys_ioctl() at netbsd:sys_ioctl+0x11c
 > [   4.3835103] syscall() at netbsd:syscall+0x173
 > [   4.3835103] --- syscall (number 54) ---
 > [   4.3835103] 734e72b1a88a:
 > [   4.3835103] cpu0: End traceback...
 >
 >> How-To-Repeat:
 >> Fix: