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Created on 2019-11-01 17:56 by Dave Johansen, last changed 2022-04-11 14:59 by admin. This issue is now closed.
| Messages (4) | |||
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| msg355830 - (view) | Author: Dave Johansen (Dave Johansen) | Date: 2019-11-01 17:56 | |
We're using SQLAlchemy 1.3.10 with pyodbc 4.0.27 in the python:3.7.5-alpine docker image to connect to a MySQL 13.0.5026.0 database and it's crashing with the following error: python: malloc.c:2406: sysmalloc: Assertion `(old_top == initial_top (av) && old_size == 0) || ((unsigned long) (old_size) >= MINSIZE && prev_inuse (old_top) && ((unsigned long) old_end & (pagesize - 1)) == 0)' failed. |
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| msg355970 - (view) | Author: Brett Cannon (brett.cannon) *  |
Date: 2019-11-04 18:37 | |
Can you trace this to actually being Python's fault? Unfortunately you're using two extension modules who both could be at fault with this. |
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| msg355972 - (view) | Author: Dave Johansen (Dave Johansen) | Date: 2019-11-04 18:44 | |
I can't. I just know that I'm running this process and this crash happens. Any recommendations on how to diagnose that? |
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| msg355973 - (view) | Author: Brett Cannon (brett.cannon) * |
Date: 2019-11-04 18:47 | |
Basically you have to figure out where that bad memory came from and that's just plain hard in C short of slowly cutting out code until you get a small reproducer. Typically these sorts of issues are almost always in the extension modules, but your case is tricky as even if that's true you don't know which one is the cause. |
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| History | |||
|---|---|---|---|
| Date | User | Action | Args |
| 2022-04-11 14:59:22 | admin | set | github: 82846 |
| 2022-01-24 10:51:39 | iritkatriel | set | status: open -> closed resolution: third party stage: resolved |
| 2019-11-04 18:47:32 | brett.cannon | set | messages: + msg355973 |
| 2019-11-04 18:44:04 | Dave Johansen | set | messages: + msg355972 |
| 2019-11-04 18:37:56 | brett.cannon | set | nosy:
+ brett.cannon messages: + msg355970 |
| 2019-11-01 17:56:46 | Dave Johansen | create | |