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zend_mm_heap corrupted on updates or upserts with parallel extension #152

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Totktonada opened this issue Mar 23, 2020 · 4 comments
Open

zend_mm_heap corrupted on updates or upserts with parallel extension #152

Totktonada opened this issue Mar 23, 2020 · 4 comments
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backlog bug Something isn't working crash prio5
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PHP 7.* + bugfixes

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@Totktonada
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See #148 (comment) for the reproducer.
@Totktonada Totktonada added the bug Something isn't working label Mar 23, 2020
@Totktonada Totktonada mentioned this issue Mar 23, 2020
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@Totktonada
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NB: Try to implement simple reproducer using parallel extension. Tried with pthread extension, but no luck.

@rybakit
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rybakit commented Mar 23, 2020 •
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Yeah, it's actually hard to localize the problem, and as I said in another issue, it may well be a bug in the ext-parallel:

  1. zend_mm_heap corrupted after calling spl_object_hash krakjoe/parallel#65
  2. zend_mm_heap corrupted in parallel test script krakjoe/parallel#129

@Totktonada
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It is a bit suspectful that the problems appears only with update and upsert.

@Totktonada Totktonada added this to the PHP 7.* + bugfixes milestone Mar 23, 2020
@MariaHajdic MariaHajdic self-assigned this Jun 19, 2020
@MariaHajdic
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Reproducible even with two parallel workers.
Tried to run under valgrind. There were some errors at the start but not relevant to the issue. Also, tried to run with USE_ZEND_ALLOC=0 which resulted in process exit with no exception.

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backlog bug Something isn't working crash prio5
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@Totktonada @rybakit @TarantoolBot @MariaHajdic