<html>
<head>
<base href="http://llvm.org/bugs/" />
</head>
<body><span class="vcard"><a class="email" href="mailto:seth.cantrell@gmail.com" title="Seth <seth.cantrell@gmail.com>"> <span class="fn">Seth</span></a>
</span> changed
<a class="bz_bug_link
bz_status_REOPENED "
title="REOPENED --- - sig 11 sometimes when accessing std::cout from multiple threads."
href="http://llvm.org/bugs/show_bug.cgi?id=12158">bug 12158</a>
<br>
<table border="1" cellspacing="0" cellpadding="8">
<tr>
<th>What</th>
<th>Removed</th>
<th>Added</th>
</tr>
<tr>
<td style="text-align:right;">Status</td>
<td>RESOLVED
</td>
<td>REOPENED
</td>
</tr>
<tr>
<td style="text-align:right;">Resolution</td>
<td>FIXED
</td>
<td>---
</td>
</tr></table>
<p>
<div>
<b><a class="bz_bug_link
bz_status_REOPENED "
title="REOPENED --- - sig 11 sometimes when accessing std::cout from multiple threads."
href="http://llvm.org/bugs/show_bug.cgi?id=12158#c3">Comment # 3</a>
on <a class="bz_bug_link
bz_status_REOPENED "
title="REOPENED --- - sig 11 sometimes when accessing std::cout from multiple threads."
href="http://llvm.org/bugs/show_bug.cgi?id=12158">bug 12158</a>
from <span class="vcard"><a class="email" href="mailto:seth.cantrell@gmail.com" title="Seth <seth.cantrell@gmail.com>"> <span class="fn">Seth</span></a>
</span></b>
<pre>I've updated and rebuilt libcxx (r185275, git commit 02786c613), but the
example program still crashes sometimes.
I ran the program using the following bash command:
for i in {1..100}; do ./a.out > /dev/null; done
and the result with r185275 was:
Segmentation fault: 11
Segmentation fault: 11
Abort trap: 6
Segmentation fault: 11
Segmentation fault: 11
Segmentation fault: 11
Segmentation fault: 11
Segmentation fault: 11
Killed: 9
Segmentation fault: 11
Segmentation fault: 11
Segmentation fault: 11
Segmentation fault: 11
Segmentation fault: 11
Segmentation fault: 11
Abort trap: 6
Segmentation fault: 11
summary:
14 segmentation faults, two aborts, one hang (I killed the process from
Activity Monitor.app after several seconds).
Below are the command lines I used.
to update and build libc++:
git svn fetch && git merge git-svn; (cd lib;
CXX=~/Programming/llvm-ninja-build/bin/clang++ TRIPLE=-apple- ./buildit)
To compile:
/Users/socantre/Programming/llvm-ninja-build/bin/clang++ -nostdinc++ -I
~/Programming/libcxx/include -std=c++11 -c main.cpp
To link:
/Users/socantre/Programming/llvm-ninja-build/bin/clang++ -nostdlib -L
~/Programming/libcxx/lib -lc++ -lpthread main.o</pre>
</div>
</p>
<hr>
<span>You are receiving this mail because:</span>
<ul>
<li>You are on the CC list for the bug.</li>
</ul>
</body>
</html>