Re: kern/52353: [netbsd-8] A crash in icmpv6 code (?)

[Dominik Bialy <dmb%yenn.ulegend.net@localhost>]

The following reply was made to PR kern/52353; it has been noted by GNATS.

From: Dominik Bialy <dmb%yenn.ulegend.net@localhost>
To: gnats-bugs%NetBSD.org@localhost
Cc: kern-bug-people%netbsd.org@localhost, gnats-admin%netbsd.org@localhost,
	netbsd-bugs%netbsd.org@localhost, dmb%yenn.ulegend.net@localhost
Subject: Re: kern/52353: [netbsd-8] A crash in icmpv6 code (?)
Date: Mon, 3 Jul 2017 05:30:15 +0200

 On Sun, Jul 02, 2017 at 11:35:01PM +0000, Kengo NAKAHARA wrote:
 > The following reply was made to PR kern/52353; it has been noted by GNATS.
 > 
 > From: Kengo NAKAHARA <k-nakahara%iij.ad.jp@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/52353: [netbsd-8] A crash in icmpv6 code (?)
 > Date: Mon, 3 Jul 2017 08:33:32 +0900
 > 
 >  Hi,
 >  
 >  On 2017/07/01 22:40, dmb%yenn.ulegend.net@localhost wrote:
 >  > System: NetBSD yenn 8.0_BETA NetBSD 8.0_BETA (YENN) #6: Mon Jun 26 08:49:07 UTC 2017 builds@yenn:/var/obj/sys/arch/amd64/compile/YENN amd64
 >  
 >  It seems you use other than GENERIC kernel config.Could you show your
 >  kernel config?
 >  
 It is almost GENERIC with: GATEWAY, and altq* options added.  The setup
 is somewhat unusual, since I'm using ipf+pf+the old altq
 
 Here's the config:
 
 http://yenn.ulegend.net/~dmb/YENN
 
 Here's dmesg.boot:
 
 http://yenn.ulegend.net/~dmb/dmesg.boot
 
 (The panic in this dmesg is probably unrelated.)
 
 In altq I'm using WFQ over a 0.75 Mbps uplink.
 
 >  > Architecture: x86_64
 >  > Machine: amd64
 >  >> Description:
 >  > yenn# crash -M netbsd.3.core -N netbsd.3
 >  > Crash version 8.0_BETA, image version 8.0_BETA.
 >  > System panicked: in6_cksum: mbuf too short for IPv6 header
 >  > Backtrace from time of crash is available.
 >  > crash> bt
 >  > _KERNEL_OPT_NARCNET() at 0
 >  > ?() at fffffe80a11bcc00
 >  > vpanic() at vpanic+0x149
 >  > snprintf() at snprintf
 >  > in6_cksum() at in6_cksum+0x1a2
 >  > _icmp6_input() at _icmp6_input+0xb4
 >  > wqinput_work() at wqinput_work+0x88
 >  > workqueue_worker() at workqueue_worker+0xbc
 >  > 
 >  > yes, IPv6 is via gif(4), but _before_ the patch for MP-fy
 >  >> How-To-Repeat:
 >  > 	possibly ping the machine for some time (?) with IPv6 on a gif(4) (?)
 >  
 >  Which do you use IPv6 over IPv6 or IPv6 over IPv4?
 >  
 IPv6 over IPv4 -- he.net tunnelbroker
 
 >  
 >  Thanks,
 >  
 >  -- 
 >  //////////////////////////////////////////////////////////////////////
 >  Internet Initiative Japan Inc.
 >  
 >  Device Engineering Section,
 >  IoT Platform Development Department,
 >  Network Division,
 >  Technology Unit
 >  
 >  Kengo NAKAHARA <k-nakahara%iij.ad.jp@localhost>
 >  
 Thank you for your reply
 	Dominik