<html xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:st1="urn:schemas-microsoft-com:office:smarttags" xmlns="http://www.w3.org/TR/REC-html40">
<head>
<META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=us-ascii">
<meta name=Generator content="Microsoft Word 11 (filtered medium)">
<!--[if !mso]>
<style>
v\:* {behavior:url(#default#VML);}
o\:* {behavior:url(#default#VML);}
w\:* {behavior:url(#default#VML);}
.shape {behavior:url(#default#VML);}
</style>
<![endif]--><o:SmartTagType
namespaceuri="urn:schemas-microsoft-com:office:smarttags" name="PersonName"/>
<!--[if !mso]>
<style>
st1\:*{behavior:url(#default#ieooui) }
</style>
<![endif]-->
<style>
<!--
/* Font Definitions */
@font-face
{font-family:Tahoma;
panose-1:2 11 6 4 3 5 4 4 2 4;}
/* Style Definitions */
p.MsoNormal, li.MsoNormal, div.MsoNormal
{margin:0in;
margin-bottom:.0001pt;
font-size:12.0pt;
font-family:"Times New Roman";}
a:link, span.MsoHyperlink
{color:blue;
text-decoration:underline;}
a:visited, span.MsoHyperlinkFollowed
{color:blue;
text-decoration:underline;}
span.EmailStyle17
{mso-style-type:personal-reply;
font-family:Arial;
color:navy;}
@page Section1
{size:8.5in 11.0in;
margin:1.0in 1.25in 1.0in 1.25in;}
div.Section1
{page:Section1;}
-->
</style>
</head>
<body lang=EN-US link=blue vlink=blue>
<div class=Section1>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>I reduced number of threads for build to
32 and rebooted the box. Hope this will help.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Thanks<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Galina <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<div>
<div class=MsoNormal align=center style='text-align:center'><font size=3
face="Times New Roman"><span style='font-size:12.0pt'>
<hr size=2 width="100%" align=center tabindex=-1>
</span></font></div>
<p class=MsoNormal><b><font size=2 face=Tahoma><span style='font-size:10.0pt;
font-family:Tahoma;font-weight:bold'>From:</span></font></b><font size=2
face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma'> <st1:PersonName
w:st="on">Kostya Serebryany</st1:PersonName> [mailto:kcc@google.com] <br>
<b><span style='font-weight:bold'>Sent:</span></b> Tuesday, March 24, 2015 1:00
PM<br>
<b><span style='font-weight:bold'>To:</span></b> <st1:PersonName w:st="on">Galina
Kistanova</st1:PersonName><br>
<b><span style='font-weight:bold'>Cc:</span></b> Hans Wennborg; <st1:PersonName
w:st="on">David Blaikie</st1:PersonName>; <st1:PersonName w:st="on">llvm-commits@cs.uiuc.edu</st1:PersonName><br>
<b><span style='font-weight:bold'>Subject:</span></b> Re: [compiler-rt] r231367
- tsan: fix signal handling during stop-the-world</span></font><o:p></o:p></p>
</div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
<div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'>The bot is very heavily loaded, it has 40+ processes running since
March 1:<o:p></o:p></span></font></p>
<div>
<div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
</div>
<div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'>41500 buildsl+ 20 0 1208380 1.040g 1044 R 100.0
2.2 17567:12 clang-3.7
<o:p></o:p></span></font></p>
</div>
<div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'>41534 buildsl+ 20 0 347420 246492 976 R
100.0 0.5 18093:57 clang-3.7
<o:p></o:p></span></font></p>
</div>
<div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'>41438 buildsl+ 20 0 535216 427720 1020 R
100.0 0.9 17862:52 clang-3.7
<o:p></o:p></span></font></p>
</div>
<div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'>41364 buildsl+ 20 0 538920 427928 1132 R
99.6 0.9 17835:58 clang-3.7
<o:p></o:p></span></font></p>
</div>
<div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'>41400 buildsl+ 20 0 481600 374952 1044 R
99.0 0.8 17961:05 clang-3.7
<o:p></o:p></span></font></p>
</div>
</div>
<div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
</div>
<div>
<div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'>buildsl+ 41534 55.0 0.4 347420 246500 ? R
Mar01 18094:29
/home/buildslave/slave_as-bldslv8/clang-x86_64-linux-selfhost-abi-test/stage1.install/bin/clang-3.7
-cc1 -triple x86_64-unknown-linux-gnu -emit-obj -disable-free -main-file-name
Errno.cpp -mrelocation-model pic -pic-level 2 -mthread-model posix -fmath-errno
-masm-verbose -mconstructor-aliases -munwind-tables -fuse-init-array
-target-cpu x86-64 -momit-leaf-frame-pointer -dwarf-column-info
-ffunction-sections -fdata-sections -coverage-file
/home/buildslave/slave_as-bldslv8/clang-x86_64-linux-selfhost-abi-test/stage2/lib/Support/CMakeFiles/LLVMSupport.dir/Errno.cpp.o
-resource-dir
/home/buildslave/slave_as-bldslv8/clang-x86_64-linux-selfhost-abi-test/stage1.install/bin/../lib/clang/3.7.0
-dependency-file lib/Support/CMakeFiles/LLVMSupport.dir/Errno.cpp.o.d -MT
lib/Support/CMakeFiles/LLVMSupport.dir/Errno.cpp.o -D GTEST_HAS_RTTI=0 -D
_DEBUG -D _GNU_SOURCE -D __STDC_CONSTANT_MACROS -D __STDC_FORMAT_MACROS -D
__STDC_LIMIT_MACROS -U NDEBUG -I lib/Support -I
/home/buildslave/slave_as-bldslv8/clang-x86_64-linux-selfhost-abi-test/llvm/lib/Support
-I include -I
/home/buildslave/slave_as-bldslv8/clang-x86_64-linux-selfhost-abi-test/llvm/include
-internal-isystem /usr/lib/gcc/x86_64-linux-gnu/4.8/../../../../include/c++/4.8
-internal-isystem /usr/lib/gcc/x86_64-linux-gnu/4.8/../../../../include/x86_64-linux-gnu/c++/4.8
-internal-isystem
/usr/lib/gcc/x86_64-linux-gnu/4.8/../../../../include/x86_64-linux-gnu/c++/4.8
-internal-isystem
/usr/lib/gcc/x86_64-linux-gnu/4.8/../../../../include/c++/4.8/backward
-internal-isystem /usr/local/include -internal-isystem
/home/buildslave/slave_as-bldslv8/clang-x86_64-linux-selfhost-abi-test/stage1.install/bin/../lib/clang/3.7.0/include
-internal-externc-isystem /usr/include/x86_64-linux-gnu
-internal-externc-isystem /include -internal-externc-isystem /usr/include -O3
-Wall -W -Wno-unused-parameter -Wwrite-strings -Wcast-qual
-Wmissing-field-initializers -Wno-long-long -Wcovered-switch-default
-Wnon-virtual-dtor -pedantic -std=c++11 -fdeprecated-macro
-fdebug-compilation-dir /home/buildslave/slave_as-bldslv8/clang-x86_64-linux-selfhost-abi-test/stage2
-ferror-limit 19 -fmessage-length 0 -fvisibility-inlines-hidden -mstackrealign
-fno-rtti -fobjc-runtime=gcc -fdiagnostics-show-option -fcolor-diagnostics
-vectorize-loops -vectorize-slp -o
lib/Support/CMakeFiles/LLVMSupport.dir/Errno.cpp.o -x c++
/home/buildslave/slave_as-bldslv8/clang-x86_64-linux-selfhost-abi-test/llvm/lib/Support/Errno.cpp<o:p></o:p></span></font></p>
</div>
</div>
<div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
</div>
<div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'>I would expect that rebooting the bot will resolve the flakiness. <o:p></o:p></span></font></p>
</div>
</div>
<div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
<div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'>On Mon, Mar 23, 2015 at 1:26 PM, <st1:PersonName w:st="on">Kostya
Serebryany</st1:PersonName> <<a href="mailto:kcc@google.com" target="_blank">kcc@google.com</a>>
wrote:<o:p></o:p></span></font></p>
<div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
<div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
<div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'>On Fri, Mar 20, 2015 at 9:59 AM, <st1:PersonName w:st="on">Galina
Kistanova</st1:PersonName> <<a href="mailto:gkistanova@accesssoftek.com"
target="_blank">gkistanova@accesssoftek.com</a>> wrote:<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'>Sure I can set you up with the access. That's one of the purposes of
having the bots in the lab.<br>
<br>
Just tell me what you are going to do there, so I could figure out the
permissions, and when you will be accessing it, so I would stop the builder.<o:p></o:p></span></font></p>
<div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
</div>
<div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'>I will need the machine to build and run a single C++ test, <o:p></o:p></span></font></p>
</div>
<div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'>so all I need is the access to the clang binary built on this builder<o:p></o:p></span></font></p>
</div>
<div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'>and an ability to compile a test using that clang. <o:p></o:p></span></font></p>
</div>
<div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'>No need to stop the builder. <o:p></o:p></span></font></p>
</div>
<blockquote style='border:none;border-left:solid #CCCCCC 1.0pt;padding:0in 0in 0in 6.0pt;
margin-left:4.8pt;margin-right:0in'>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><br>
Please also send me directly the ssh key you will be using.<o:p></o:p></span></font></p>
</blockquote>
<div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
</div>
<div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'>ok! <o:p></o:p></span></font></p>
</div>
<div>
<div>
<div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'> <o:p></o:p></span></font></p>
</div>
<blockquote style='border:none;border-left:solid #CCCCCC 1.0pt;padding:0in 0in 0in 6.0pt;
margin-left:4.8pt;margin-right:0in'>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><br>
Thank you<br>
<font color="#888888"><span style='color:#888888'><br>
Galina</span></font><o:p></o:p></span></font></p>
<div>
<div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><br>
<br>
-----Original Message-----<br>
From: <a href="mailto:hwennborg@google.com" target="_blank">hwennborg@google.com</a>
[mailto:<a href="mailto:hwennborg@google.com" target="_blank">hwennborg@google.com</a>]
On Behalf Of Hans Wennborg<br>
Sent: Thursday, March 19, 2015 1:43 PM<br>
To: <st1:PersonName w:st="on">David Blaikie</st1:PersonName><br>
Cc: <st1:PersonName w:st="on">Kostya Serebryany</st1:PersonName>; <st1:PersonName
w:st="on">Galina Kistanova</st1:PersonName>; <a
href="mailto:llvm-commits@cs.uiuc.edu" target="_blank">llvm-commits@cs.uiuc.edu</a><br>
Subject: Re: [compiler-rt] r231367 - tsan: fix signal handling during
stop-the-world<br>
<br>
I'm hitting this when running 'ninja check-all' on my machine.<br>
<br>
If I just run the individual run line, it doesn't crash though.<br>
<br>
On Mon, Mar 16, 2015 at 11:37 AM, <st1:PersonName w:st="on">David Blaikie</st1:PersonName>
<<a href="mailto:dblaikie@gmail.com" target="_blank">dblaikie@gmail.com</a>>
wrote:<br>
> Not my bot (& I seem to have lost my local reproduction - it was
failing<br>
> pretty consistently for me last week - perhaps my machine instnalled a<br>
> software update in the interim), +Galina who might have some more info
about<br>
> as-bldslv8.<br>
><br>
> On Mon, Mar 16, 2015 at 11:34 AM, <st1:PersonName w:st="on">Kostya
Serebryany</st1:PersonName> <<a href="mailto:kcc@google.com" target="_blank">kcc@google.com</a>>
wrote:<br>
>><br>
>><br>
>><br>
>> On Sun, Mar 15, 2015 at 12:34 AM, Dmitry Vyukov <<a
href="mailto:dvyukov@google.com" target="_blank">dvyukov@google.com</a>><br>
>> wrote:<br>
>>><br>
>>> On Sun, Mar 15, 2015 at 12:32 AM, <st1:PersonName w:st="on">David
Blaikie</st1:PersonName> <<a href="mailto:dblaikie@gmail.com"
target="_blank">dblaikie@gmail.com</a>><br>
>>> wrote:<br>
>>> >> Added:<br>
>>> >>
compiler-rt/trunk/test/asan/TestCases/Linux/leak_check_segv.cc<br>
>>> >><br>
>>> >><br>
>>> >>
compiler-rt/trunk/test/asan/TestCases/Linux/signal_during_stop_the_world.cc<br>
>>> >><br>
>>> >><br>
>>> >>
compiler-rt/trunk/test/sanitizer_common/TestCases/Linux/signal_segv_handler.cc<br>
>>> ><br>
>>> ><br>
>>> > This test appears to be flaky. Failing every second run here:<br>
>>> ><br>
>>> > <a
href="http://lab.llvm.org:8011/builders/clang-x86_64-linux-selfhost-abi-test/builds/2871"
target="_blank">http://lab.llvm.org:8011/builders/clang-x86_64-linux-selfhost-abi-test/builds/2871</a><br>
>>> > and failing for me locally.<br>
>>><br>
>>><br>
>>> The test does not fail for a bunch of us locally (I run it 5000
times<br>
>>> locally).<br>
>>> Can you please run it locally _without_ any tool? Does it fail?<br>
>><br>
>><br>
>> Yea, we tried reproducing it on multiple machines with no luck.<br>
>> Can we have access to the bot?<o:p></o:p></span></font></p>
</div>
</div>
</blockquote>
</div>
</div>
</div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
</div>
</div>
</div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
</div>
</div>
</body>
</html>