why would I get a segmentation fault on one system but not the other?

David Benfell benfell at parts-unknown.org
Sun Feb 22 04:14:23 UTC 2015

On Sat, Feb 21, 2015 at 05:01:17PM -0600, cpet wrote:
> You have 2 systems one running a different svn rev than the other, first 
> I would suggest before suggesting bad ram is to sync both to be equal, 
> meaning the one that is failing to either upgrade or downgrade it. if 
> it's seg faulting I would mem test that and replace failing module.
The system experiencing the segfaults is new--and from a vendor that
has previously shipped me a system with bad memory.

So I think you'll understand if I reversed the order of your suggested

I haven't stopped the memory test yet. But it has been running for an
hour and completed one pass without error. From what I can see on
line, that's a pretty good sign.

So, now the second step. The implication of what you're suggesting is
fairly obviously that the segfaults are originating in the base
system. I'm now worried about upgrading the old system (which is
working fine and, oh, by the way, is the one that had originally been
shipped with memory problems). If you're right, to upgrade it might
break what is a (maybe not quite) perfectly good system.

So how would I downgrade to the earlier revision?

David Benfell <benfell at parts-unknown.org>
See https://parts-unknown.org/node/2 if you don't understand the
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