Re: [Xen-API] Segmentation Fault with xe --nossl

[David Scott <dave.scott@xxxxxxxxxxxxx>]

On 18/07/13 16:26, Carsten Beyer wrote:
> Hi Dave,
>
> the xapi-xe-0.2-5669.i686 RPM came from the XenServer 6.2 Install
> ISO-Image and I'm currently wondering where I could get the xe
> debug-info RPM. Previous used xapi-xe-RPM's came from the XCP ISO Image.
>
> Without debug-info, it looks like this in gdb (not useful):
I see what you mean!

Although I'm still curious to understand this failure, you might have 
better luck with a version of xe which I've compiled specifically for 
CentOS 6.4 x86_64:
http://xenbits.xen.org/djs/xenserver-tech-preview.20130707.1/RPMS/x86_64/xapi-xe-1.9.16-0.x86_64.rpm

Let me know if that one works better for you.

Cheers,
Dave

> [root@lizard2 bin]# gdb xe core.31717
> GNU gdb (GDB) Red Hat Enterprise Linux (7.2-60.el6_4.1)
> Copyright (C) 2010 Free Software Foundation, Inc.
> License GPLv3+: GNU GPL version 3 or later
> <http://gnu.org/licenses/gpl.html>
> This is free software: you are free to change and redistribute it.
> There is NO WARRANTY, to the extent permitted by law.  Type "show copying"
> and "show warranty" for details.
> This GDB was configured as "x86_64-redhat-linux-gnu".
> For bug reporting instructions, please see:
> <http://www.gnu.org/software/gdb/bugs/>...
> Reading symbols from /usr/bin/xe...(no debugging symbols found)...done.
> [New Thread 31717]
> Core was generated by `xe vm-list -s xenbase01 -pwf
> /root/bin/pwfile.xenbase01 --nossl'.
> Program terminated with signal 11, Segmentation fault.
> #0  0x0810bb19 in ?? ()
> Missing separate debuginfos, use: debuginfo-install xapi-xe-0.2-5669.i686
> (gdb) bt
> #0  0x0810bb19 in ?? ()
> #1  0x080e587c in ?? ()
> #2  0x080e47e3 in ?? ()
> #3  0x080e6da6 in ?? ()
> #4  0x080e36ca in ?? ()
> #5  0x080e6f2e in ?? ()
> #6  0x080d4b9a in ?? ()
> #7  0x080d4c10 in ?? ()
> #8  0x080d59ac in ?? ()
> #9  0x080d70ca in ?? ()
> #10 0x0808cd95 in ?? ()
> #11 0x0804bd1e in ?? ()
> Backtrace stopped: previous frame inner to this frame (corrupt stack?)
> (gdb)
>
>
> Cheers,
> Carsten
>
> On 07/18/2013 02:26 PM, David Scott wrote:
> > On 18/07/13 12:12, Mike McClurg wrote:
> > > On 17/07/13 16:46, Carsten Beyer wrote:
> > > > Hello,
> > > >
> > > > I get a Segmentation fault with the 'xe' command (RPM
> > > > xapi-xe-0.2-5669.i686 and earlier versions) if I use the '--nossl'
> > > > parameter on a CentOS 6.4 (64bit) server. Without the '--nossl'
> > > > parameter 'xe' works fine. We are using LDAP with 'sssd' for
> > > > authentication and if we fall back to 'nscd' the Segmentation fault
> > > > doesn't occur. That would be our workaround for now.
> > > FYI, I couldn't reproduce this on Ubuntu with a 64-bit build of xe (from
> > > the xcp-xe package). I'll see about reproing this on CentOS 6.4.
> > >
> > > > [root@lizard2 bin]# xe vm-list -s xenbase01 -pwf pwfile.xenbase01
> > > > --nossl
> > > > Segmentation fault
> > Can you find and install the xe debug-info RPM? If so then you could
> > enable core dumping
> >
> >   ulimit -c unlimited
> >
> > then perform another repro, which will make a core dump file
> > ("core.PID"). If you install gdb
> >
> >   yum install gdb
> >
> > you can then get a backtrace from it using
> >
> >   gdb xe corefilename
> >
> > and typing in "bt" (for "backtrace"). That would be very interesting!
> >
> > Cheers,
> > Dave
> >
> >
> > > > [root@lizard2 bin]# xe vm-list -s xenbase01 -pwf pwfile.xenbase01
> > > > uuid ( RO)           : 1764cfe1-27f4-42e3-bc74-c47db9c533ac
> > > >       name-label ( RW): Control domain on host: xenbase01
> > > >      power-state ( RO): running
> > > > ...
> > > >
> > > > We want to replace our current administration server (RHEL
> > > > 5.9/LDAP/nscd) with a newer one (CentOS 6.4/LDAP/sssd). Our XEN pools
> > > > are running with XenServer 6.2 (just updated).
> > > >
> > > > Had anybody else a similar problem with 'xe' ?
> > > >
> > > > Best Regards,
> > > > Carsten Beyer
> > > >
> > > >
> > > >
> > > > _______________________________________________
> > > > Xen-api mailing list
> > > > Xen-api@xxxxxxxxxxxxx
> > > > http://lists.xen.org/cgi-bin/mailman/listinfo/xen-api
> > >
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> > > Xen-api mailing list
> > > Xen-api@xxxxxxxxxxxxx
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