[Orca-users] Orcallator - Segmentation Fault

[Dmitry Berezin]

It happens at startup. Take a look here: 
http://www.orcaware.com/pipermail/orca-users/2006-August/004955.html

- there is a good example of the problem with both debug and truss outputs.

IIRIC, this problem is Solaris 10 specific and has not shown up in previous
versions of the OS.

  -Dmitry.

> -----Original Message-----
> From: Cockcroft, Adrian [mailto:acockcroft at ebay.com]
> Sent: Thursday, September 07, 2006 1:16 PM
> To: Dmitry Berezin; Biju Joseph; orca-users at orcaware.com
> Subject: RE: [Orca-users] Orcallator - Segmentation Fault
> 
> It should still be possible to avoid the crash by checking for a null at
> the right point.
> 
> Is it crashing in kstat read of the iostats, or the devinfo name mapping
> at startup?
> 
> Adrian
> 
> -----Original Message-----
> From: Dmitry Berezin [mailto:dberezin at surfside.rutgers.edu]
> Sent: Thursday, September 07, 2006 8:43 AM
> To: Cockcroft, Adrian; 'Biju Joseph'; orca-users at orcaware.com
> Subject: RE: [Orca-users] Orcallator - Segmentation Fault
> 
> Adrian,
> 
> I believe that the actual problem is not with the array sizes, but has
> to do
> with the "stale" disk devices. SE "segfaults" when it tries to access a
> device that is not currently present on the system. That is why the
> problem
> is usually seen on the clustered systems with shared storage or systems
> with
> BCV devices that frequently change their state to offline. A number of
> people had previously reported that rebuilding device tree fixed the
> problem.
> 
> I have not had time to look at the code, so I do not know if this could
> be
> solved by changing scripts or SE itself has to be patched.
> 
>   -Dmitry.
> 
> 
> > -----Original Message-----
> > From: orca-users-bounces+dberezin=acs.rutgers.edu at orcaware.com
> > [mailto:orca-users-bounces+dberezin=acs.rutgers.edu at orcaware.com] On
> > Behalf Of Cockcroft, Adrian
> > Sent: Thursday, September 07, 2006 11:13 AM
> > To: Biju Joseph; orca-users at orcaware.com
> > Subject: Re: [Orca-users] Orcallator - Segmentation Fault
> >
> > Years ago I fixed the code that looks at disks to resize the array
> > dynamically, I guess that this code got overwritten at some point, but
> its
> > a simple fix, just doesn't look much like C code...
> >
> > You can use the "renew" keyword to make a new array that is bigger and
> > contains the same items, so figure out where its indexing into the
> disk
> > array, check the index and renew the array to be size+10 or something.
> > There's example code in the generic SE disk class, which for some
> reason
> > orcallator doesn't seem to use?
> >
> > I'm not currently working on a Solaris box, so it will take me a while
> to
> > get a setup I could test this fix on, probably a few weeks when I get
> back
> > from a business trip.
> >
> > Adrian
> >
> > -----Original Message-----
> > From: orca-users-bounces+acockcroft=ebay.com at orcaware.com on behalf of
> > Biju Joseph
> > Sent: Thu 9/7/2006 7:28 AM
> > To: orca-users at orcaware.com
> > Subject: [Orca-users] Orcallator - Segmentation Fault
> >
> > Hello All,
> >
> > I am trying to start orcallator on two nodes of VCS cluster ( 4.1 )
> with
> > VxVM 4.1 . Database is on EMC disks. Orcallator is giving segmentation
> > fault.
> >
> > RICHPse version is 3.4 (03:59 PM 01/05/05).  I tried using
> orcallator.se
> > 1.36 and 1.37. Both giving same problem.
> >
> > The same combination is working on non clustered systems. All systems
> are
> > Solaris 10
> >
> > Can any of you help.
> >
> > Appreciate your help.
> >
> > Regards
> > Biju K Joseph
> > +91-9866116298
> >
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