[DragonFlyBSD - Bug #2425] ifconfig gif0 create x2 freeze

Pierre Abbat via Redmine bugtracker-admin at leaf.dragonflybsd.org
Mon Jun 10 21:36:38 PDT 2013

Issue #2425 has been updated by phma.

I attempted to restart the gif0 interface of zyxomma after correcting the tunnel endpoint. The kernel panicked. I got a crash dump. It is the 0th in my home directory on leaf. Here is the traceback:

panic() at panic+0x1f6 0xffffffff804fcabf 
panic() at panic+0x1f6 0xffffffff804fcabf 
rtfree_remote() at rtfree_remote+0x72 0xffffffff805b6b99 
gif_clear_cache() at gif_clear_cache+0x6c 0xffffffff805a97b2 
gif_set_tunnel() at gif_set_tunnel+0xfd 0xffffffff805a9c87 
gif_ioctl() at gif_ioctl+0x227 0xffffffff805aa0c9 
ifioctl() at ifioctl+0xc81 0xffffffff805a1f4f 
soo_ioctl() at soo_ioctl+0x142 0xffffffff80539e42 
mapped_ioctl() at mapped_ioctl+0x4dc 0xffffffff80533dfc 
sys_ioctl() at sys_ioctl+0x1c 0xffffffff80533e9b 
syscall2() at syscall2+0x38c 0xffffffff808c448b 
Xfast_syscall() at Xfast_syscall+0xcb 0xffffffff808ae15b 
boot() called on cpu#1

This is a 64-bit box using a gif interface for a he.net tunnel.
Bug #2425: ifconfig gif0 create x2 freeze

Author: emu
Status: New
Priority: Normal
Target version: 

When adding an ipv6 interface multiple times in a row, or deleting it then reading it often/always drops to a debug/panic.  Here is a screenshot of the last bit i can grab.

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