cccc junk pointer (was: Re: [current tinderbox] failure on
i386/pc98)
Steve Wills
steve at stevenwills.com
Wed Jun 16 00:05:41 GMT 2004
On Tue, Jun 15, 2004 at 02:30:00PM -0700, Kris Kennaway wrote:
> On Tue, Jun 15, 2004 at 01:20:35PM -0400, Robert Watson wrote:
>
> > > cc -c -O2 -pipe -fno-strict-aliasing -Wall -Wredundant-decls -Wnested-externs -Wstrict-prototypes -Wmissing-prototypes -Wpointer-arith -Winline -Wcast-qual -fformat-extensions -std=c99 -nostdinc -I- -I. -I/tinderbox/CURRENT/i386/pc98/src/sys -I/tinderbox/CURRENT/i386/pc98/src/sys/contrib/dev/acpica -I/tinderbox/CURRENT/i386/pc98/src/sys/contrib/altq -I/tinderbox/CURRENT/i386/pc98/src/sys/contrib/ipfilter -I/tinderbox/CURRENT/i386/pc98/src/sys/contrib/pf -I/tinderbox/CURRENT/i386/pc98/src/sys/contrib/dev/ath -I/tinderbox/CURRENT/i386/pc98/src/sys/contrib/dev/ath/freebsd -I/tinderbox/CURRENT/i386/pc98/src/sys/contrib/ngatm -D_KERNEL -include opt_global.h -fno-common -finline-limit=8000 -DGPROF -falign-functions=16 -DGPROF4 -DGUPROF -fno-builtin -mno-align-long-strings -mpreferred-stack-boundary=2 -ffreestanding -Werror -finstrument-functions /tinderbox/CURRENT/i386/pc98/src/sys/ddb/db_elf.c
> > > cccc: in free(): error: junk pointer, too high to make sense
> > > Abort trap (core dumped)
> > > *** Error code 134
> > >
> > > Stop in /tinderbox/CURRENT/i386/pc98/obj/pc98/tinderbox/CURRENT/i386/pc98/src/sys/LINT.
> > > *** Error code 1
> > >
> > > Stop in /tinderbox/CURRENT/i386/pc98/src.
> > > *** Error code 1
> > >
> > > Stop in /tinderbox/CURRENT/i386/pc98/src.
> > > TB --- 2004-06-15 17:13:44 - WARNING: /usr/bin/make returned exit code 1
> > > TB --- 2004-06-15 17:13:44 - ERROR: failed to build lint kernel
> > > TB --- 2004-06-15 17:13:44 - tinderbox aborted
> >
> > I've noticed a few of these recently. Do we have any information on
> > whether this is a compiler bug, a hardware problem on the tinderbox, or a
> > kernel problem on the tinderbox?
>
> I'd be suspicious of ithread pre-emption..try backing out
> sys/i386/i386/intr_machdep.c
>
> Kris
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FWIW, I noticed one of these a few days ago on 5-CURRENT with
SCHED_ULE and a custom kernel. Restarted the build and it completed
fine. Perhaps evidence against hardware problem? Just another data
point.
Steve
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