#38961 [Sus->Fbk]: Metaphone results in segmentation fault

From: Date: Tue, 26 Sep 2006 22:11:59 +0000
Subject: #38961 [Sus->Fbk]: Metaphone results in segmentation fault
References: 1  Groups: php.bugs 
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 ID:               38961
 Updated by:       tony2001@php.net
 Reported By:      nikolas dot hagelstein at gmail dot com
-Status:           Suspended
+Status:           Feedback
 Bug Type:         Reproducible crash
 Operating System: Netbsd 3.0.1 AMD64
 PHP Version:      5.1.6
 New Comment:

Please apply this to the snapshot:
http://tony2001.phpclub.net/dev/tmp/bug38961.diff
Does this patch fix it for you? 


Previous Comments:
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[2006-09-26 20:30:30] nikolas dot hagelstein at gmail dot com

(gdb) p word[w_idx]
$1 = -61 'Ã'

in my native mind this should not result in a negative number. This
seems to be related to wider datatypes on 64 bit maschines possible a
compiler flag issue ...

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[2006-09-26 20:19:01] tony2001@php.net

I've reported it to NetBSD people, lets see what they say about it.

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[2006-09-26 18:34:13] nikolas dot hagelstein at gmail dot com

ah got it i had to run php -e 
(gdb) p word[w_idx]
$1 = -61 'Ã'
(gdb) p toupper(word[w_idx])
$2 = 28518
(gdb) p isalpha(toupper(word[w_idx]))

Program received signal SIGSEGV, Segmentation fault.
0x0000000200e4eced in isalpha () from /usr/lib/libc.so.12

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[2006-09-26 18:33:44] tony2001@php.net

# gdb sapi/cli/php
(gdb) r /path/to/test/script.php
<here will be segfault>
(gdb) f 0
(gdb) p word[w_idx]
(gdb) p toupper(word[w_idx])
(gdb) p isalpha(toupper(word[w_idx]))

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[2006-09-26 18:26:08] nikolas dot hagelstein at gmail dot com

(gdb) p word[w_idx]
No symbol table is loaded.  Use the "file" command.

seems as if i have to load a symbol table or something, any hints?

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