Bug 7029 – CPU_ALLOC_SIZE() returns wrong value

Bug 7029 - CPU_ALLOC_SIZE() returns wrong value


Summary:	CPU_ALLOC_SIZE() returns wrong value

Status:	RESOLVED FIXED

Product:	glibc
Classification:	Unclassified
Component:	libc
Version:	2.8

Importance:	P2 normal
Target Milestone:	---
Assigned To:	Ulrich Drepper

URL:
Keywords:

Depends on:
Blocks:
	Show dependency tree / graph

Reported:	2008-11-13 03:05 UTC by Michael Kerrisk
Modified:	2008-11-13 19:57 UTC (History)
CC List:	1 user (show)

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Attachments
test program (652 bytes, text/plain) 2008-11-13 03:07 UTC, Michael Kerrisk	Details
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Description Michael Kerrisk 2008-11-13 03:05:17 UTC

On x86-32 at least, CPU_ALLOC_SIZE() returns twice the value that its should. 
For example, CPU_ALLOC_SIZE(8192) returns 2048.  This also causes CPU_ALLOC() to
allocate double the required memory.

Comment 1 Michael Kerrisk 2008-11-13 03:07:24 UTC

Created attachment 3059 [details]
test program

An example run of the attached program demonstrates the problem:

$ ./a.out 8192
CPU_ALLOC_SIZE()=2048

Comment 2 Ulrich Drepper 2008-11-13 19:57:21 UTC

Changed in cvs.