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Posted to issues@trafficserver.apache.org by GitBox <gi...@apache.org> on 2021/11/23 00:07:24 UTC
[GitHub] [trafficserver] ywkaras opened a new issue #8535: Proposed lib tool to detect wild writes of heap
ywkaras opened a new issue #8535:
URL: https://github.com/apache/trafficserver/issues/8535
This would only be used in test builds. The test builds could be run in a production environment, but with some perf degradation.
The tool would provide a "private" heap for dynamic memory allocation from a contiguous, page-aligned range. The test build would require changes to allocate the heap objects to be monitored from this private heap. All entry point functions to this tool would have to take a single common mutex (slow). The heap could be implemented with: https://github.com/wkaras/heap-memory-manager . The heap's memory pages would be read-only by default. "alloc" and "free" calls would make the whole heap writable. For non-error writes, it would be necessary to call a function to enable, then disable, writing to the page(s) containing the variable(s) to be written.
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[GitHub] [trafficserver] SolidWallOfCode commented on issue #8535: Proposed lib tool to detect wild writes of heap
Posted by GitBox <gi...@apache.org>.
SolidWallOfCode commented on issue #8535:
URL: https://github.com/apache/trafficserver/issues/8535#issuecomment-976032600
Might want to base this on the existing `MemArena` class.
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[GitHub] [trafficserver] ywkaras commented on issue #8535: Proposed lib tool to detect wild writes of heap
Posted by GitBox <gi...@apache.org>.
ywkaras commented on issue #8535:
URL: https://github.com/apache/trafficserver/issues/8535#issuecomment-976032843
Ahh linked lists from hell!!!
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[GitHub] [trafficserver] ywkaras closed issue #8535: Proposed lib tool to detect wild writes of heap
Posted by GitBox <gi...@apache.org>.
ywkaras closed issue #8535:
URL: https://github.com/apache/trafficserver/issues/8535
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