Re: xend gets SIGBUS and cores under -current

[Sarton O'Brien <bsd-xen%roguewrt.org@localhost>]

On 19/05/2009 9:30 AM, Sarton O'Brien wrote:
> On 19/05/2009 7:07 AM, Manuel Bouyer wrote:
> > On Mon, May 18, 2009 at 07:21:52PM +0000, Jonathan A. Kollasch wrote:
> > > Hi,
> > >
> > > I'm trying to update a amd64 dom0 to -current (to use dm(4)).
> > >
> > > I've been unable to get xend to stay running. The python interperter
> > > recives a SIGBUS (signal 10) and dumps core.
> > >
> > > The kdump(1) shows interesting oddness:
> > > 245 8 python2.5 PSIG SIGBUS SIG_DFL: code=SI_USER sent by
> > > pid=-87363552, uid=32639)
> > > note the bogus pid and uid, these two values change to different
> > > yet similar value from trace to trace.
> > >
> > > I've tried xenkernel3/xentools3 with python25, and
> > > xenkernel33/xentools33
> > > with both python25 and python26. All these cases exhibit a similar
> > > SIGBUS to xend.
> > >
> > > I'm running 5.99.11, sources from about the 17th.
> >
> > interesting. I'm running a amd64 5.99.11 kernel on a 5.0 userland, and
> > don't have issues ...
>
> I'm running -current amd64 dom0/domu from May 5th with no issues. I'll
> update my dev box today and report back tomorrow if nothing else crops
> up in the meantime.

Sorry for the delay, I've struggled to get a cvs sync that isn't broken.

Built and running as of Fri May 22 11:29:03 EST 2009, all seems to be 
fine. I haven't updated userland ... yet. uname and package list below.

Just before updating I did see some vnds stay tied up when domu failed 
to honor 'shutdown -r now', shutting down completely and then being 
unable to start them back up. Bit of a pain ... I'll check if I 
replicate the problem with current.

The only thing that crosses my mind for your issue is that I seem to 
remember some xen related changes that required a userland of at least a 
specific vintage with a new kernel. I only mention it as I'm not sure 
from what version you are updating.

NetBSD gogeta.internal 5.99.11 NetBSD 5.99.11 (XEN3_DOM0) #0: Fri May 22 
15:09:04 EST 2009 
root%spike.internal@localhost:/usr/obj/sys/arch/amd64/compile/XEN3_DOM0 amd64

bash-4.0.10         The GNU Bourne Again Shell
bison-2.4.1nb1      GNU yacc(1) replacement
dev86-0.16.17nb2    Linux 8086 development environment
digest-20080510     Message digest wrapper utility
expat-2.0.1         XML parser library written in C
gmake-3.81          GNU version of 'make' utility
grub-0.97nb8        GRand Unified Bootloader -- Boots *BSD, Linux, groks 
ffs, FAT, ext2
libffi-3.0.8nb1     Foreign function interface
libtool-1.5.26      Generic shared library support script
libtool-base-1.5.26nb1 Generic shared library support script (the script 
itself)
libtool-info-1.5.26 Generic shared library support script - info pages
m4-1.4.13           GNU version of UNIX m4 macro language processor
ncurses-5.7nb1      CRT screen handling and optimization package
netbsd32_compat40-4.0 Shared libraries for NetBSD 32-bit 4.0 compatibility
netbsd32_compat40-extras-4.0 Additional shared libraries for NetBSD 
32-bit 4.0 compatibility
perl-5.10.0nb6      Practical Extraction and Report Language
pkg-config-0.23nb1  System for managing library compile/link flags
pkg_chk-1.99        Check installed package versions against pkgsrc
pkg_leaves-1.2      Print leaf packages
pkg_rolling-replace-0.16nb2 Replace/upgrade packages in-place
pkg_tarup-1.7.1     Generates binary package(s) from installed pkg(s)
pkgsurvey-0.0       Utility to collate pkg information, and mail to 
central census site
py25-curses-0nb4    Curses module for Python
py25-readline-0nb3  Line editing support for Python
py25-xml-0.8.4nb2   Collection of libraries to process XML with Python
python24-2.4.5nb2   Interpreted, interactive, object-oriented 
programming language
python25-2.5.4      Interpreted, interactive, object-oriented 
programming language
readline-6.0        GNU library that can recall and edit previous input
wget-1.11.4         Retrieve files from the 'net via HTTP and FTP
xenkernel33-3.3.1nb1 Xen 3.3.1 Kernel
xentools33-3.3.1nb6 Userland Tools for Xen 3.3.x

Sarton