| Bug #47825 | Unit test mysys/waiting_threads-t hangs | ||
|---|---|---|---|
| Submitted: | 5 Oct 2009 8:14 | Modified: | 4 Feb 2013 11:14 |
| Reporter: | Olav Sandstå | Email Updates: | |
| Status: | Won't fix | Impact on me: | |
| Category: | MySQL Server: General | Severity: | S3 (Non-critical) |
| Version: | 6.0.14 | OS: | Any |
| Assigned to: | CPU Architecture: | Any | |
[5 Oct 2009 8:22]
Olav Sandstå
* The test passes when configuring and compiling MySQL the exact same way on Solaris 10 running on an AMD machine * The test passes on Linux
[6 Oct 2009 14:50]
Sveta Smirnova
Thank you for the report. Verified as described.
[27 Nov 2009 21:55]
Olav Sandstå
On Solaris 10 on SPARC this seems to be repeatable on every run. But I do not think it is limited to Solaris/SPARC. I have seen this test at least once hang "forever" using all CPU on my laptop which runs Ubuntu on a single-core AMD processor:
mytap/t/basic-t.................ok
2/5 skipped: various reasons
mysys/safe_cleanup_cat_path-t...ok
mysys/my_rdtsc-t................ok
mysys/lf-t......................ok
mysys/waiting_threads-t.........ok 11/12
At this time the waiting_threads process has used 172 CPU minutes (and is still running).
[4 Feb 2013 11:14]
Dmitry Lenev
Hello! waiting_threads-t is a unit test for code from mysys/waiting_threads.c. Apart from now now abandoned 6.0 tree the latter is present in sources for 5.6 releases but is not really invoked from anywhere. mysys/waiting_threads.c was removed from server sources in 5.7.1, and corresponding unit test is not even present in current version of 5.6. Due to this the bug is no longer relevant and I am closing it as "Won't fix."
Description: When running the unit tests on Solaris 10 on SPARC the test mysys/waiting_threads-t hangs. A process named "waiting_threads" is running and using all CPU cycles on one of the CPUs. Output from running the unit tests: os136802@techra29:~/<2>repo/6.0-bugfix-sparc> make test cd unittest; make test make[1]: Entering directory `/home/os136802/mysql/develop/repo/6.0-bugfix-sparc/unittest' perl unit.pl run mytap mysys backup ../storage/archive ../storage/blackhole ../storage/csv ../storage/example ../storage/federated ../storage/heap ../storage/innobase ../storage/myisammrg ../storage/myisam ../plugin/audit_null ../plugin/daemon_example ../plugin/fulltext ../plugin/semisync ../dbug Running tests: mytap mysys backup ../storage/archive ../storage/blackhole ../storage/csv ../storage/example ../storage/federated ../storage/heap ../storage/innobase ../storage/myisammrg ../storage/myisam ../plugin/audit_null ../plugin/daemon_example ../plugin/fulltext ../plugin/semisync ../dbug mytap/t/basic-t.................ok 2/5 skipped: Sensa fragoli mysys/bitmap-t..................ok mysys/base64-t..................ok mysys/safe_cleanup_cat_path-t...ok mysys/my_atomic-t...............ok mysys/lf-t......................ok mysys/waiting_threads-t.........ok 11/12 How to repeat: 1. Use the source from a 6.0 tree 2. ./BUILD/autorun.sh 3. Run configure like this: ./configure CC=/opt/studio12/SUNWspro/bin/cc CXX=/opt/studio12/SUNWspro/bin/CC CFLAGS="-Xa -m64 -mt -g" CXXFLAGS="-m64 -mt -g" --prefix=/home/os136802/install/mysql6 --with-client-ldflags=-static --with-plugins=myisam,innobase --enable-dtrace --with-debug 4. make 5. Run the unit tests: make test The test run should "hang" when getting to "mysys/waiting_threads-t.........ok 11/12" (for me it hang for over an hour before I killed the test).