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Re: Corrupting the sv arena #434

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p5pRT opened this issue Aug 25, 1999 · 3 comments
Closed

Re: Corrupting the sv arena #434

p5pRT opened this issue Aug 25, 1999 · 3 comments

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@p5pRT
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@p5pRT p5pRT commented Aug 25, 1999

Migrated from rt.perl.org#1275 (status was 'resolved')

Searchable as RT1275$

@p5pRT
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@p5pRT p5pRT commented Aug 25, 1999

From ilya@math.ohio-state.edu

Thanks,
Ilya

On Wed, Aug 25, 1999 at 10​:01​:25AM -0600, Bruno Melli wrote​:

Hi Ilya,

You mentioned "esoteric" ways to corrupt the sv arena and I think I
have found one although I don't know enough of the perl
internals to know if that is the real cause​:

      \.\.\.

my %prelim_conf;
tie %prelim_conf, 'FOCS', $global_conf;
# untie %prelim_conf;
undef %prelim_conf;

exit 1;

(I added then commented out the untie call)
Seems that if you tie a variable then undef it without untying it
you cause damage to whatever you tied to.
In this case the actual damage occurs during the exit operation so I
assume that some sort of cleanup is done at that level on a
corrupted global_conf.
Does that sound plausible ?

thanks,

bruno.

@p5pRT
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@p5pRT p5pRT commented Aug 12, 2002

From @gbarr

Cannot reproduce

@p5pRT
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@p5pRT p5pRT commented Aug 12, 2002

@gbarr - Status changed from 'open' to 'resolved'

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