Details
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Bug
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Status: Closed (View Workflow)
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Minor
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Resolution: Not a Bug
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10.0.26, 10.0.27, 10.0.28, 10.0.29
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None
Description
It was reported in Debian that 10.0.26 in Jessie failed to build on PowerPC. As other PowerPC issues were fixed, we assumed wrongly this one was fixed too, but when 10.0.29 was uploaded to Jessie, the failure can still be seen.
See https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=832931 for longer discussion.
The failures happens when tests are about to start:
Creating var directory '/«PKGBUILDDIR»/builddir/mysql-test/var'...
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Checking supported features...
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MariaDB Version 10.0.29-MariaDB-0+deb8u1
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- SSL connections supported
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Sphinx 'indexer' binary not found, sphinx suite will be skipped
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Using suites: main-,archive-,binlog-,csv-,federated-,funcs_1-,funcs_2-,handler-,heap-,innodb-,innodb_fts-,innodb_zip-,maria-,multi_source-,optimizer_unfixed_bugs-,parts-,percona-,perfschema-,plugins-,roles-,rpl-,sys_vars-,unit-,vcol-,connect,oqgraph,sequence,spider,spider/bg,sql_discovery,metadata_lock_info,query_response_time
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Collecting tests...
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Installing system database...
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mysql-test/CMakeFiles/test-force.dir/build.make:49: recipe for target 'mysql-test/CMakeFiles/test-force' failed
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make[5]: *** [mysql-test/CMakeFiles/test-force] Terminated
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E: Caught signal ‘Terminated’: terminating immediately
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debian/rules:129: recipe for target 'override_dh_auto_test' failed
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make[1]: *** [override_dh_auto_test] Terminated
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CMakeFiles/Makefile2:8965: recipe for target 'mysql-test/CMakeFiles/test-force.dir/all' failed
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make[4]: *** [mysql-test/CMakeFiles/test-force.dir/all] Terminated
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CMakeFiles/Makefile2:8973: recipe for target 'mysql-test/CMakeFiles/test-force.dir/rule' failed
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make[3]: *** [mysql-test/CMakeFiles/test-force.dir/rule] Terminated
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debian/rules:210: recipe for target 'build-arch' failed
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make: *** [build-arch] Terminated
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Makefile:2885: recipe for target 'test-force' failed
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make[2]: *** [test-force] Terminated
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Build killed with signal TERM after 150 minutes of inactivity
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Full log attached.
Debian build logs visible at https://buildd.debian.org/status/logs.php?pkg=mariadb-10.0&arch=powerpc
Note that 10.0.x in Sid built OK on PowerPC. This issue is visible only in recent Jessie builds. It might have something to do with libc and jemalloc versions in Debian Jessie. Also note that Jessie only gets security updates at this point, and not all security builds are public, thus for example the attached build log isn't visible in the build summary.
Attachments
Issue Links
Activity
Alright, the hang seems to be related to jemalloc. It happens when we are freeing a large chunk of memory, spanning multiple system pages. From previous investigations I believe this to be the cause. I don't have an appropriate fix at the moment, other than not using jemalloc on Power, which seems like a bad compromise. Need to investigate if newer versions of JeMalloc fix this.
Not so much not a bug, but not our bug.
jemalloc-5.0.0 https://github.com/jemalloc/jemalloc/commit/da4cff0279b2e8f2b0482ae961f2e2f63662342d included a fix which is now in Debian buster.
Given the debian bug is blocked by debian bug 832931 - incorrect jemalloc size what behaviour is required?
I've also had a jemalloc 64k page size running on a 4k page size ppc64le kernel with mariadb and it also crashed.
Having gdb installed and the error logs in the mysql-test/var directory would help.
In
MDEV-10984svoj mentions fixes that I assume are these ones in 10.2 https://github.com/MariaDB/server/commits/10.2?author=svoj Nov 25, 2016 (referencingMDEV-11296)