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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">Hi Matt,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">The test is still failing after r361326, but now there seems to be more output, maybe it can help you see what is failing?<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.5pt;font-family:"Courier New";color:#333333">Command Output (stderr):<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.5pt;font-family:"Courier New";color:#333333">--<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.5pt;font-family:"Courier New";color:#333333">/home/siadmin/jenkins/w/opensource/opensource_build/llvm/projects/compiler-rt/test/fuzzer/merge-sigusr.test:38:8: error: CHECK: expected string not found in input<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.5pt;font-family:"Courier New";color:#333333">CHECK: INFO: libFuzzer: exiting as requested<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.5pt;font-family:"Courier New";color:#333333"> ^<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.5pt;font-family:"Courier New";color:#333333"><stdin>:16:1: note: scanning from here<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.5pt;font-family:"Courier New";color:#333333">INFO: Seed: 2774593460<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.5pt;font-family:"Courier New";color:#333333">^<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.5pt;font-family:"Courier New";color:#333333"><stdin>:19:24: note: possible intended match here<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.5pt;font-family:"Courier New";color:#333333">INFO: -max_len is not provided; libFuzzer will not generate inputs larger than 1048576 bytes<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.5pt;font-family:"Courier New";color:#333333"> ^<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.5pt;font-family:"Courier New";color:#333333"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.5pt;font-family:"Courier New";color:#333333">Input file: <stdin><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.5pt;font-family:"Courier New";color:#333333">Check file: /home/siadmin/jenkins/w/opensource/opensource_build/llvm/projects/compiler-rt/test/fuzzer/merge-sigusr.test<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.5pt;font-family:"Courier New";color:#333333"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.5pt;font-family:"Courier New";color:#333333">-dump-input=help describes the format of the following dump.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.5pt;font-family:"Courier New";color:#333333"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.5pt;font-family:"Courier New";color:#333333">Full input was:<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.5pt;font-family:"Courier New";color:#333333"><<<<<<<o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.5pt;font-family:"Courier New";color:#333333"> 1: INFO: Seed: 3990588964<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.5pt;font-family:"Courier New";color:#333333"> 2: INFO: Loaded 1 modules (1 inline 8-bit counters): 1 [0x776e40, 0x776e41),
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.5pt;font-family:"Courier New";color:#333333"> 3: INFO: Loaded 1 PC tables (1 PCs): 1 [0x550cd8,0x550ce8),
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.5pt;font-family:"Courier New";color:#333333"> 4: MERGE-OUTER: 7 files, 0 in the initial corpus<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.5pt;font-family:"Courier New";color:#333333"> 5: MERGE-OUTER: attempt 1<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.5pt;font-family:"Courier New";color:#333333"> 6: INFO: Seed: 4014854147<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.5pt;font-family:"Courier New";color:#333333"> 7: INFO: Loaded 1 modules (1 inline 8-bit counters): 1 [0x776e40, 0x776e41),
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.5pt;font-family:"Courier New";color:#333333"> 8: INFO: Loaded 1 PC tables (1 PCs): 1 [0x550cd8,0x550ce8),
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.5pt;font-family:"Courier New";color:#333333"> 9: INFO: -max_len is not provided; libFuzzer will not generate inputs larger than 1048576 bytes<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.5pt;font-family:"Courier New";color:#333333"> 10: MERGE-INNER: using the control file '/home/siadmin/jenkins/w/opensource/opensource_build/build/projects/compiler-rt/test/fuzzer/X86_64DefaultLinuxConfig/Output/merge-sigusr.test.tmp/MCF'<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.5pt;font-family:"Courier New";color:#333333"> 11: MERGE-INNER: 7 total files; 0 processed earlier; will process 7 files now<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.5pt;font-family:"Courier New";color:#333333"> 12: #1 pulse cov: 1 exec/s: 1 rss: 27Mb<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.5pt;font-family:"Courier New";color:#333333"> 13: #2 pulse cov: 1 exec/s: 1 rss: 27Mb<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.5pt;font-family:"Courier New";color:#333333"> 14: MERGE-OUTER: attempt 2<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.5pt;font-family:"Courier New";color:#333333"> 15: INFO: signal received, trying to exit gracefully<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.5pt;font-family:"Courier New";color:#333333"> 16: INFO: Seed: 2774593460<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.5pt;font-family:"Courier New";color:#333333">check:38'0 X~~~~~~~~~~~~~~~~~~~~~<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.5pt;font-family:"Courier New";color:#333333"> 17: INFO: Loaded 1 modules (1 inline 8-bit counters): 1 [0x776e40, 0x776e41),
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.5pt;font-family:"Courier New";color:#333333">check:38'0 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.5pt;font-family:"Courier New";color:#333333"> 18: INFO: Loaded 1 PC tables (1 PCs): 1 [0x550cd8,0x550ce8),
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.5pt;font-family:"Courier New";color:#333333">check:38'0 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.5pt;font-family:"Courier New";color:#333333"> 19: INFO: -max_len is not provided; libFuzzer will not generate inputs larger than 1048576 bytes<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.5pt;font-family:"Courier New";color:#333333">check:38'0 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.5pt;font-family:"Courier New";color:#333333">check:38'1 ? possible intended match<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.5pt;font-family:"Courier New";color:#333333"> 20: MERGE-INNER: using the control file '/home/siadmin/jenkins/w/opensource/opensource_build/build/projects/compiler-rt/test/fuzzer/X86_64DefaultLinuxConfig/Output/merge-sigusr.test.tmp/MCF'<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.5pt;font-family:"Courier New";color:#333333">check:38'0 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.5pt;font-family:"Courier New";color:#333333"> 21: MERGE-INNER: '/home/siadmin/jenkins/w/opensource/opensource_build/build/projects/compiler-rt/test/fuzzer/X86_64DefaultLinuxConfig/Output/merge-sigusr.test.tmp/C2/d'
caused a failure at the previous merge step<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.5pt;font-family:"Courier New";color:#333333">check:38'0 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.5pt;font-family:"Courier New";color:#333333"> 22: MERGE-INNER: 7 total files; 4 processed earlier; will process 3 files now<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.5pt;font-family:"Courier New";color:#333333">check:38'0 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.5pt;font-family:"Courier New";color:#333333"> 23: #4 pulse cov: 1 exec/s: 1 rss: 27Mb<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.5pt;font-family:"Courier New";color:#333333">check:38'0 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.5pt;font-family:"Courier New";color:#333333"> 24: #1 pulse cov: 1 exec/s: 1 rss: 27Mb<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.5pt;font-family:"Courier New";color:#333333">check:38'0 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.5pt;font-family:"Courier New";color:#333333"> 25: #2 pulse cov: 1 exec/s: 1 rss: 27Mb<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.5pt;font-family:"Courier New";color:#333333">check:38'0 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.5pt;font-family:"Courier New";color:#333333"> 26: #3 DONE cov: 1 exec/s: 1 rss: 27Mb<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.5pt;font-family:"Courier New";color:#333333">check:38'0 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.5pt;font-family:"Courier New";color:#333333"> 27: MERGE-OUTER: succesfull in 2 attempt(s)<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.5pt;font-family:"Courier New";color:#333333">check:38'0 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.5pt;font-family:"Courier New";color:#333333"> 28: MERGE-OUTER: the control file has 1281 bytes<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.5pt;font-family:"Courier New";color:#333333">check:38'0 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.5pt;font-family:"Courier New";color:#333333"> 29: MERGE: failed to parse the control file (unexpected error)<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.5pt;font-family:"Courier New";color:#333333">check:38'0 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ error: no match found<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.5pt;font-family:"Courier New";color:#333333">>>>>>><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.5pt;font-family:"Courier New";color:#333333"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.5pt;font-family:"Courier New";color:#333333">--<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">Douglas Yung<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">From:</span></b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif"> Matt Morehouse <mascasa@google.com>
<br>
<b>Sent:</b> Tuesday, May 21, 2019 15:47<br>
<b>To:</b> Yung, Douglas <douglas.yung@sony.com><br>
<b>Cc:</b> llvm-commits <llvm-commits@lists.llvm.org><br>
<b>Subject:</b> Re: [compiler-rt] r361313 - [libFuzzer] Reduce flakiness of merge-sigusr.test.<o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
<div>
<p class="MsoNormal">Thanks for the heads up. I suspect the issue is the $PID process is exiting before wait runs. I've sent r361326 as a speculative fix.<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<div>
<div>
<p class="MsoNormal">On Tue, May 21, 2019 at 3:37 PM <<a href="mailto:douglas.yung@sony.com" target="_blank">douglas.yung@sony.com</a>> wrote:<o:p></o:p></p>
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<p class="MsoNormal">Hi Matt,<br>
<br>
This change is causing the test you re-enabled to fail on our internal linux bot. The test output is not terribly informative though and I am seeing if I can figure out where it is failing, but wanted to give you a heads up.<br>
<br>
Douglas Yung<br>
<br>
-----Original Message-----<br>
From: llvm-commits <<a href="mailto:llvm-commits-bounces@lists.llvm.org" target="_blank">llvm-commits-bounces@lists.llvm.org</a>> On Behalf Of Matt Morehouse via llvm-commits<br>
Sent: Tuesday, May 21, 2019 14:16<br>
To: <a href="mailto:llvm-commits@lists.llvm.org" target="_blank">llvm-commits@lists.llvm.org</a><br>
Subject: [compiler-rt] r361313 - [libFuzzer] Reduce flakiness of merge-sigusr.test.<br>
<br>
Author: morehouse<br>
Date: Tue May 21 14:15:51 2019<br>
New Revision: 361313<br>
<br>
URL: <a href="http://llvm.org/viewvc/llvm-project?rev=361313&view=rev" target="_blank">
http://llvm.org/viewvc/llvm-project?rev=361313&view=rev</a><br>
Log:<br>
[libFuzzer] Reduce flakiness of merge-sigusr.test.<br>
<br>
Double the number of files to merge, and use wait instead of sleep.<br>
<br>
Modified:<br>
compiler-rt/trunk/test/fuzzer/merge-sigusr.test<br>
<br>
Modified: compiler-rt/trunk/test/fuzzer/merge-sigusr.test<br>
URL: <a href="http://llvm.org/viewvc/llvm-project/compiler-rt/trunk/test/fuzzer/merge-sigusr.test?rev=361313&r1=361312&r2=361313&view=diff" target="_blank">
http://llvm.org/viewvc/llvm-project/compiler-rt/trunk/test/fuzzer/merge-sigusr.test?rev=361313&r1=361312&r2=361313&view=diff</a><br>
==============================================================================<br>
--- compiler-rt/trunk/test/fuzzer/merge-sigusr.test (original)<br>
+++ compiler-rt/trunk/test/fuzzer/merge-sigusr.test Tue May 21 14:15:51 <br>
+++ 2019<br>
@@ -1,8 +1,7 @@<br>
# Check that libFuzzer honors SIGUSR1/SIGUSR2 # FIXME: Disabled on Windows for now because of reliance on posix only features # (eg: export, "&", pkill).<br>
-# TODO(morehouse): rethink test and reenable for linux.<br>
-UNSUPPORTED: darwin, windows, linux<br>
+UNSUPPORTED: darwin, windows<br>
RUN: rm -rf %t<br>
RUN: mkdir -p %t<br>
RUN: %cpp_compiler %S/SleepOneSecondTest.cpp -o %t/LFSIGUSR @@ -15,12 +14,20 @@ RUN: echo d > %t/C2/d<br>
RUN: echo e > %t/C2/e<br>
RUN: echo f > %t/C2/f<br>
RUN: echo g > %t/C2/g<br>
+RUN: echo h > %t/C2/g<br>
+RUN: echo i > %t/C2/g<br>
+RUN: echo j > %t/C2/g<br>
+RUN: echo k > %t/C2/g<br>
+RUN: echo l > %t/C2/g<br>
+RUN: echo m > %t/C2/g<br>
+RUN: echo n > %t/C2/g<br>
+RUN: echo o > %t/C2/g<br>
<br>
RUN: %run %t/LFSIGUSR -merge=1 -merge_control_file=%t/MCF %t/C1 %t/C2 2>%t/log & export PID=$!<br>
RUN: sleep 3<br>
RUN: pkill -SIGUSR2 -P $PID<br>
RUN: kill -SIGUSR2 $PID<br>
-RUN: sleep 6<br>
+RUN: wait $PID<br>
RUN: cat %t/log | FileCheck %s --dump-input=fail<br>
RUN: grep C2/g %t/MCF<br>
RUN: grep STARTED %t/MCF<br>
<br>
<br>
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