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https://issues.apache.org/jira/browse/ARROW-13265?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17375944#comment-17375944
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Antoine Pitrou commented on ARROW-13265:
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It seems to be a thread that's not stopped before the process ends. Technically
it may be harmless, but Valgrind doesn't like it.
It would be nice if you could try to enable tests selectively to try and find
out which one produces the leak exactly.
> [R] [C++] New valgrind errors in nightlies
> ------------------------------------------
>
> Key: ARROW-13265
> URL: https://issues.apache.org/jira/browse/ARROW-13265
> Project: Apache Arrow
> Issue Type: Bug
> Components: C++, R
> Reporter: Jonathan Keane
> Priority: Blocker
> Fix For: 5.0.0
>
>
> The r-valgrind nightly job has been failing from July 1-today.
> The last known good build was on June 30.
> The following were merged on 30 June so likely one of them is the culprit:
> ARROW-13128: [C#] TimestampArray conversion logic for nano and micro … …
> ARROW-13025: [C++][Python] Add FunctionOptions::Equals/ToString/Seria… …
> ARROW-13095: [C++] Implement trig compute functions …
> MINOR: [C#] Fixing example to use WriteEndAsync instead of WriteFoote… …
> ARROW-13010: [C++][Compute] Support outputting to slices from kleene … …
> ARROW-12996: Add bytes_read() to StreamingReader …
> ARROW-13072: [C++] Add bit-wise arithmetic kernels …
> ARROW-13104: [C++] Fix unsafe cast in ByteStreamSplit implementation …
> ARROW-13134: [C++][CI] Pin aws-sdk-cpp to < 1.9 …
> For reference:
> last commit on June 29: 42048e554056baa7fb3d1159a859f3e08056fc1b
> last commit on June 30: ab5747959d2defeda9ff159155fb4673e3f77e8d
> The error is:
> {code}
> 2021-07-06T09:03:49.4267523Z ==3154== HEAP SUMMARY:
> 2021-07-06T09:03:49.4269578Z ==3154== in use at exit: 322,229,205 bytes
> in 61,881 blocks
> 2021-07-06T09:03:49.4271423Z ==3154== total heap usage: 3,962,401 allocs,
> 3,900,520 frees, 2,926,474,902 bytes allocated
> 2021-07-06T09:03:49.4273205Z ==3154==
> 2021-07-06T09:03:56.2319948Z ==3154== 336 bytes in 1 blocks are possibly lost
> in loss record 174 of 3,640
> 2021-07-06T09:03:56.2321803Z ==3154== at 0x483DD99: calloc (in
> /usr/lib/x86_64-linux-gnu/valgrind/vgpreload_memcheck-amd64-linux.so)
> 2021-07-06T09:03:56.2323056Z ==3154== by 0x40149CA: allocate_dtv
> (dl-tls.c:286)
> 2021-07-06T09:03:56.2324056Z ==3154== by 0x40149CA: _dl_allocate_tls
> (dl-tls.c:532)
> 2021-07-06T09:03:56.2324838Z ==3154== by 0x5721322: allocate_stack
> (allocatestack.c:622)
> 2021-07-06T09:03:56.2329162Z ==3154== by 0x5721322:
> pthread_create@@GLIBC_2.2.5 (pthread_create.c:660)
> 2021-07-06T09:03:56.2329726Z ==3154== by 0x1317E67A: cli__start_thread
> (thread.c:46)
> 2021-07-06T09:03:56.2330502Z ==3154== by 0x1317E6D6: clic_start_thread
> (thread.c:63)
> 2021-07-06T09:03:56.2331474Z ==3154== by 0x494214E: R_doDotCall
> (dotcode.c:604)
> 2021-07-06T09:03:56.2331893Z ==3154== by 0x49B135F: bcEval (eval.c:7671)
> 2021-07-06T09:03:56.2332311Z ==3154== by 0x498C2A2: Rf_eval (eval.c:727)
> 2021-07-06T09:03:56.2332712Z ==3154== by 0x498F011: R_execClosure
> (eval.c:1897)
> 2021-07-06T09:03:56.2333146Z ==3154== by 0x498ECC4: Rf_applyClosure
> (eval.c:1823)
> 2021-07-06T09:03:56.2333567Z ==3154== by 0x49A084C: bcEval (eval.c:7083)
> 2021-07-06T09:03:56.2333952Z ==3154== by 0x498C2A2: Rf_eval (eval.c:727)
> 2021-07-06T09:03:56.2334279Z ==3154==
> 2021-07-06T09:03:56.2361291Z ==3154== LEAK SUMMARY:
> 2021-07-06T09:03:56.2362383Z ==3154== definitely lost: 0 bytes in 0 blocks
> 2021-07-06T09:03:56.2362824Z ==3154== indirectly lost: 0 bytes in 0 blocks
> 2021-07-06T09:03:56.2363239Z ==3154== possibly lost: 336 bytes in 1
> blocks
> 2021-07-06T09:03:56.2363802Z ==3154== still reachable: 322,228,869 bytes
> in 61,880 blocks
> 2021-07-06T09:03:56.2364367Z ==3154== of which
> reachable via heuristic:
> 2021-07-06T09:03:56.2365602Z ==3154== newarray
> : 4,264 bytes in 1 blocks
> 2021-07-06T09:03:56.2366369Z ==3154== suppressed: 0 bytes in 0 blocks
> 2021-07-06T09:03:56.2366834Z ==3154== Reachable blocks (those to which a
> pointer was found) are not shown.
> 2021-07-06T09:03:56.2367759Z ==3154== To see them, rerun with:
> --leak-check=full --show-leak-kinds=all
> 2021-07-06T09:03:56.2368331Z ==3154==
> 2021-07-06T09:03:56.2368935Z ==3154== For lists of detected and suppressed
> errors, rerun with: -s
> 2021-07-06T09:03:56.2369460Z ==3154== ERROR SUMMARY: 1 errors from 1 contexts
> (suppressed: 2 from 1)
> {code}
> https://dev.azure.com/ursacomputing/crossbow/_build/results?buildId=7714&view=logs&j=0da5d1d9-276d-5173-c4c4-9d4d4ed14fdb&t=d9b15392-e4ce-5e4c-0c8c-b69645229181&l=13491
>
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