*Synopsis*: Nested sub shell in command substitution with lots of data hangs
CR 6946957 changed on Apr 26 2010 by <User 1-5Q-8426>
=== Field ============ === New Value ============= === Old Value =============
Evaluation New Note
Status 3-Accepted 1-Dispatched
====================== =========================== ===========================
*Change Request ID*: 6946957
*Synopsis*: Nested sub shell in command substitution with lots of data hangs
Product: solaris
Category: shell
Subcategory: korn93
Type: Defect
Subtype:
Status: 3-Accepted
Substatus:
Priority: 2-High
Introduced In Release:
Introduced In Build:
Responsible Engineer:
Keywords: opensolaris
=== *Description* ============================================================
Category
shell
Sub-Category
korn93
Description
A command substitution will hang if the amount of output of a command in a
sub shell exceeds a specific size.
The important factors are: 1. Command substitution 2. sub shell 3. Command
produces larger quantities of data
Frequency
Always
Regression
no
Steps to Reproduce
Run ksh93 -c 'print $( ( seq 60000 ) )'
Expected Result
Print numbers 1 - 60000.
Actual Result
Shell hangs.
Error Message(s)
Test Case
Workaround
Remove sub shell.
Additional configuration information
ksh93 --version
version sh (AT&T Research) 93t+ 2010-03-05
uname -a
SunOS meridian 5.11 snv_134 sun4u sparc SUNW,A70
*** (#1 of 1): 2010-04-23 22:15:49 GMT+00:00 <User 1-9HOB9N>
=== *Public Comments* ========================================================
=== *Workaround* =============================================================
=== *Additional Details* =====================================================
Targeted Release:
Commit To Fix In Build:
Fixed In Build:
Integrated In Build:
Verified In Build:
See Also: 6859444
Duplicate of:
Hooks:
Hook1:
Hook2:
Hook3:
Hook4:
Hook5:
Hook6: <email address omitted>
Program Management:
Root Cause:
Fix Affects Documentation: No
Fix Affects Localization: No
=== *History* ================================================================
Date Submitted: 2010-04-23 22:15:48 GMT+00:00
Submitted By: <User 1-9HOB9N>
Status Changed Date Updated Updated By
3-Accepted 2010-04-26 10:41:44 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_134
Operating System: solaris_nevada
Hardware: generic
Submitted Date: 2010-04-23 22:15:49 GMT+00:00
=== *Multiple Release (MR) Cluster* - 0 ======================================
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