Public bug reported:
A thread started with a minimal stack size (PTHREAD_STACK_MIN from
limits.h), can't even call fprintf(stderr, "%s", "") without
segfaulting. Took me a good while to debug this one in our embedded
software.
This program will segfault:
#include <pthread.h>
#include <stdio.h>
#include <limits.h>
static void* thread_function(void* arg)
{
fprintf(stderr, "Hello, %s!", "World");
return 0;
}
int main()
{
pthread_attr_t attr;
pthread_t thread;
pthread_attr_init(&attr);
pthread_attr_setstacksize(&attr, PTHREAD_STACK_MIN);
pthread_create(&thread, &attr, &thread_function, 0);
pthread_join(thread, 0);
return 0;
}
ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: libc6-dev 2.15-0ubuntu10.4
ProcVersionSignature: Ubuntu 3.2.0-53.81-generic 3.2.50
Uname: Linux 3.2.0-53-generic i686
ApportVersion: 2.0.1-0ubuntu17.4
Architecture: i386
Date: Thu Sep 26 08:09:33 2013
InstallationMedia: Ubuntu-Server 12.04.3 LTS "Precise Pangolin" - Release i386
(20130820.2)
MarkForUpload: True
ProcEnviron:
LANGUAGE=en_US:en
TERM=xterm
PATH=(custom, no user)
LANG=en_US.UTF-8
SHELL=/bin/bash
SourcePackage: eglibc
UpgradeStatus: No upgrade log present (probably fresh install)
** Affects: eglibc (Ubuntu)
Importance: Undecided
Status: New
** Tags: apport-bug i386 precise
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https://bugs.launchpad.net/bugs/1231272
Title:
Segfault in fprintf in thread with minimal stack size
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