Details
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Bug
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Resolution: Fixed
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Major
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3.1.4
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Untriaged
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Unknown
Description
As identified by TSan. currentvb. This is only used for stats / debug so it's essentially benign.
WARNING: ThreadSanitizer: data race (pid=12312)
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Read of size 2 at 0x7d400000fff8 by main thread (mutexes: write M12542):
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#0 VBCBAdaptor::getDescription() /home/abhinav/couchbase/ep-engine/src/ep.h:128 (ep.so+0x0000000a7fe1)
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#1 ExecutorPool::_stopTaskGroup(unsigned long, task_type_t, bool) /home/abhinav/couchbase/ep-engine/src/executorpool.cc:562 (ep.so+0x0000000f3c21)
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#2 ExecutorPool::stopTaskGroup(unsigned long, task_type_t, bool) /home/abhinav/couchbase/ep-engine/src/executorpool.cc:585 (ep.so+0x0000000f3f5e)
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#3 ~EventuallyPersistentStore /home/abhinav/couchbase/ep-engine/src/ep.cc:468 (ep.so+0x0000000836c6)
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#4 ~EventuallyPersistentEngine /home/abhinav/couchbase/ep-engine/src/ep_engine.cc:6326 (ep.so+0x0000000d4eda)
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#5 EvpDestroy(engine_interface*, bool) /home/abhinav/couchbase/ep-engine/src/ep_engine.cc:141 (ep.so+0x0000000b4b8c)
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#6 mock_destroy(engine_interface*, bool) /home/abhinav/couchbase/memcached/programs/engine_testapp/engine_testapp.cc:98 (engine_testapp+0x0000000ba027)
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#7 destroy_bucket(engine_interface*, engine_interface_v1*, bool) /home/abhinav/couchbase/memcached/programs/engine_testapp/engine_testapp.cc:995 (engine_testapp+0x0000000b952e)
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#8 __libc_start_main /build/buildd/eglibc-2.19/csu/libc-start.c:287 (libc.so.6+0x000000021ec4)
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Previous write of size 2 at 0x7d400000fff8 by thread T10:
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#0 VBCBAdaptor::run() /home/abhinav/couchbase/ep-engine/src/ep.cc:3776 (ep.so+0x00000009d7e3)
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#1 ExecutorThread::run() /home/abhinav/couchbase/ep-engine/src/executorthread.cc:112 (ep.so+0x0000000f94d3)
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#2 launch_executor_thread(void*) /home/abhinav/couchbase/ep-engine/src/executorthread.cc:33 (ep.so+0x0000000f9055)
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#3 platform_thread_wrap /home/abhinav/couchbase/platform/src/cb_pthreads.c:23 (libplatform.so.0.1.0+0x000000003d31)
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Note: already fixed in watson: http://review.couchbase.org/55775
Attachments
Issue Links
- blocks
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MB-19323 3.1.6 release
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- Closed
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| For Gerrit Dashboard: MB-19256 | ||||||
|---|---|---|---|---|---|---|
| # | Subject | Branch | Project | Status | CR | V |
| 62974,6 | MB-19256: Address possible data race on VBCBAdaptor::currentvb | 3.0.x | ep-engine | Status: MERGED | +2 | +1 |
| 65187,3 | Merge remote-tracking branch 'couchbase/3.0.x' into sherlock | sherlock | ep-engine | Status: MERGED | +2 | +1 |
| 66012,1 | Merge commit 'couchbase/sherlock' into 'couchbase/watson' | watson | ep-engine | Status: ABANDONED | 0 | -1 |
| 66060,5 | Merge remote-tracking branch 'couchbase/sherlock' into 'couchbase/watson' | watson | ep-engine | Status: MERGED | +2 | +1 |