*Synopsis*: ksh93 cores as well when application invoked from script cores
This CR has had a change of priority to or from a high value.
CR 7008357 changed on Jan 11 2011 by <User 1-5Q-8426>
=== Field ============ === New Value ============= === Old Value =============
Evaluation New Note
Priority 2-High 1-Very High
====================== =========================== ===========================
*Change Request ID*: 7008357
*Synopsis*: ksh93 cores as well when application invoked from script cores
Product: solaris
Category: shell
Subcategory: korn93
Type: Defect
Subtype:
Status: 3-Accepted
Substatus:
Priority: 2-High
Introduced In Release:
Introduced In Build:
Responsible Engineer: <User 1-5Q-8426>
Keywords:
=== *Description* ============================================================
Let's have a program that is generating core:
$ cat a.c
int main(void)
{
int *i = 0;
*i = 0;
return 0;
}
$ gcc a.c
$ ./a.out
Segmentation Fault (core dumped)
$
Let's have a script where the program is invoked:
$ cat a.sh
echo a | ./a.out
$
When the script is run by ksh93, then the ksh93 cores instead of the program:
$ /bin/ksh93 a.sh
a.sh: line 1: 17706: Memory fault(coredump)
Segmentation Fault (core dumped)
$ file core
core: ELF 64-bit LSB core file AMD64 Version 1, from 'ksh93'
$ echo ::stack | mdb core
libc.so.1`kill+0xa()
libshell.so.1`sh_main+0x817()
main+0x57()
0x400ccc()
$
This is not a case for other shells, for example:
$ /bin/bash a.sh
a.sh: line 1: 17721 Done echo a
17722 Segmentation Fault (core dumped) | ./a.out
$ file core
core: ELF 32-bit LSB core file 80386 Version 1, from 'a.out'
$ echo ::stack | mdb core
main+0x26(1, 8047abc, 8047ac4, 8050d00, 0, 0)
_start+0x83(1, 8047bc4, 0, 8047bcc, 8047bf2, 8047c06)
$
So, apparently, ksh93 is doing something wrong.
$ uname -a
SunOS telcontar 5.11 snv_154 i86pc i386 i86pc Solaris
$
*** (#1 of 1): 2010-12-21 18:33:40 GMT+00:00 <User 1-2GGNX3>
=== *Public Comments* ========================================================
=== *Workaround* =============================================================
coreadm can be used to change corefile patterns so the ksh93 core doesn't
overwrite the application core by core dumping on top of it to the same
file name.
*** (#1 of 1): 2010-12-23 17:56:56 GMT+00:00 <User 1-5Q-1267>
=== *Additional Details* =====================================================
Targeted Release:
Commit To Fix In Build:
Fixed In Build:
Integrated In Build:
Verified In Build:
See Also: 6989746
Duplicate of:
Hooks:
Hook1:
Hook2:
Hook3:
Hook4:
Hook5:
Hook6:
Program Management: New Defect
Root Cause:
Fix Affects Documentation: No
Fix Affects Localization: No
=== *History* ================================================================
Date Submitted: 2010-12-21 18:33:39 GMT+00:00
Submitted By: <User 1-2GGNX3>
Status Changed Date Updated Updated By
3-Accepted 2010-12-23 13:29:42 GMT+00:00 <User 1-5Q-8426>
=== *Service Request* ========================================================
Impact: Critical
Functionality: Primary
Severity: 1
Product Name: solaris
Product Release: solaris_nevada
Product Build: snv_154
Operating System: snv_154
Hardware: x86
Submitted Date: 2010-12-21 18:33:40 GMT+00:00
=== *Multiple Release (MR) Cluster* - 0 ======================================
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