Subject: Re: Data modified on freelist
To: None <email@example.com>
From: Shoichi Miyake <firstname.lastname@example.org>
Date: 11/24/2004 22:21:05
> Just noticed the following on a running system that was upgraded
> Data modified on freelist: word 5 of object 0xc1d28f00 size 156 previous
> type bar (0xc1d28900 != 0xdeadbeef)
> The sources came from anoncvs-fi mirror on 20041123, and the kernel also
> has the following patches:
> The previous upgrade was on November 9th, and prior to today I don't
> remember seeing such warnings. Something to do with the patches
> (directly or indirectly), or with the recent changes in -current?
I found similar malloc warnings yesterday on my cobalt qube2 around
23,Nov, and followings are from /var/log/messages.
Nov 23 18:39:03 cobalt /netbsd: Data modified on freelist: word 0 of object 0xc0
0fc500 size 256 previous type foo (invalid addr 0xdeadbeef)
Nov 23 18:39:23 cobalt /netbsd: Data modified on freelist: word 0 of object 0xc0
107100 size 256 previous type foo (invalid addr 0xdeadbeef)
uname -a output is:
NetBSD cobalt 2.99.10 NetBSD 2.99.10 (COBALT) #13: Tue Nov 23 18:35:03 JST 2004 email@example.com:/work/nb/src/sys/arch/cobalt/compile/COBALT cobalt
I booted qube2 and it happend immediately when I started cvs checkout
on fresh filesystem.
I'm sorry but not had further investigation at that time because my
qube2 is really unstable and thought it is because of memory module...