[egenix-users] SIGBUS from mx/BeeBase/mxBeeBase/btr.c on HP-UX,
Alpha, IRIX, Solaris
egenix-users at mlists.thewrittenword.com
Wed Jan 11 11:10:14 CET 2006
On Wed, Jan 11, 2006 at 10:20:19AM -0600, Albert Chin wrote:
> On Wed, Jan 11, 2006 at 05:00:25PM +0100, M.-A. Lemburg wrote:
> > Are you compiling this on a 64-bit machine ?
> They are all 64-bit CPUs but we are building 32-bit objects.
> > FWIW: When trying the test.py script on an AMD64 machine it
> > runs through fine.
> Yeah, we tried on RHEL 3/AMD64 and 4/AMD64 with success.
> > It's been ages since I last looked at the code, so it's hard
> > to tell what the problem could be.
> What I don't understand is why this doesn't work:
> *mkey1 = 0;
> *(mkey1 + 1) = 0;
> *(mkey1 + 2) = 0;
> *(mkey1 + 3) = 1;
> val = *mkey2;
> ^^^^^^^^^^^^^ SIGBUS
I think it's a memory-alignment issue. Maybe unsigned longs on the
problematic platforms need to be aligned to an even address, or
something like that. If so, how to fix?
albert chin (china at thewrittenword.com)
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