Bug 371

Summary:	linuxthreads.old: many threads will corrupt your vm mappings
Product:	uClibc	Reporter:	Natanael Copa <ncopa>
Component:	Threads	Assignee:	unassigned
Status:	RESOLVED FIXED
Severity:	normal	CC:	uclibc-cvs
Priority:	P5
Version:	0.9.30.1
Target Milestone:	0.9.32
Hardware:	PC
OS:	Linux
Host:	x86	Target:	x86
Build:	x86
Attachments:	testcase

Description Natanael Copa 2009-06-03 07:12:13 UTC

When using linuxthreads.old the stack allocation will corrupt the vm mappings for the dynamic linker causing segfaults at random places at random times.

As a workaround its possible use 'ulimit -s unlimited'

This probably only affects newer kernels that randomizes mmap addresses.

Comment 1 Natanael Copa 2009-06-03 07:33:51 UTC

Created attachment 371 [details]
testcase

small testcase i got from Timo Teräs

Comment 2 Natanael Copa 2010-05-19 06:41:19 UTC

This is fixed in NPTL and no point try fix it in linuxthreads. I'm closing it.