[DragonFlyBSD - Bug #2266] panic during shutdown

Venkatesh Srinivas via Redmine bugtracker-admin at leaf.dragonflybsd.org
Tue Dec 27 12:29:09 PST 2011

Issue #2266 has been updated by Venkatesh Srinivas.


It looks like the system accessed the address 0xdeadc122, which is 0xdeadc0de + 0x44; deadcode is filled in to free()d kernel memory.

The particular dereference that generated this invalid address was the extraction of the mountpoint from the vnode structure in vop_write. This means that vop_write was using an already-kfree()d vnode, which is bad news.

Bug #2266: panic during shutdown

Author: Ferruccio Zamuner
Status: New
Priority: Normal
Target version: 

it panics during shutdown on vop_write+0x110 at movl 0x44(%edx),edx


> uname -a
DragonFly lap.diff.org 2.13-DEVELOPMENT DragonFly v2.13.0.709.g50e40-DEVELOPMENT #17: Mon Dec 26 23:03:55 CET 2011     fer at lap.diff.org:/usr/obj/mnt2/src/sys/GENERIC  i386

You have received this notification because you have either subscribed to it, or are involved in it.
To change your notification preferences, please click here: http://bugs.dragonflybsd.org/my/account

More information about the Bugs mailing list