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Re: Apache 1.3.9 + mod_perl 1.21 + Solaris 2.7 dumps core

From: Ilya Zakharevich <ilya@math.ohio-state.edu>
To: Alan.Burlison@uk.sun.com (Alan Burlison)
Cc: modperl@apache.org, perl5-porters@perl.org
Date: Thu, 13 Jan 2000 16:14:38 -0500 (EST)
Message-Id: <200001132114.QAA24993@monk.mps.ohio-state.edu>

Alan Burlison writes:
> The value of the ax variable in the XSUB is being set to -316718320,
> which looks wrong to me, and causes subsequent code like the expression
> "PL_stack_base [ ax + ( 0 ) ]" to give illegal addresses.
> 
> ax is calculated as "mark - PL_stack_base + 1", where mark=0x6,
> PL_stack_base=0x4fcd78.  mark is in turn calculated from "PL_stack_base
> + ( * PL_markstack_ptr -- )", where PL_stack_base=0x4fcd78 and
> *PL_markstack_ptr=7
> 
> Obviously PL_markstack_ptr is bogus

Looks perfectly normal to me.  

  PERLVAR(Tmarkstack_ptr,	I32 *)

It is an integer offset.

Ilya

Follow-Ups from:: Alan Burlison <Alan.Burlison@uk.sun.com>

References to:: Alan Burlison <Alan.Burlison@uk.sun.com>

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