[Maxima-bugs] [maxima:bugs] #4236 Repeated run_testsuite leads to out of memory error

[David S. <tom...@us...>]

- **status**: open --> closed
- **Comment**:

Fixed by commit [a84283].



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**[bugs:#4236] Repeated run\_testsuite leads to out of memory error**

**Status:** closed
**Group:** None
**Labels:** run\_testsuite sbcl 
**Created:** Fri Dec 29, 2023 11:34 PM UTC by Robert Dodier
**Last Updated:** Sun Mar 16, 2025 04:15 AM UTC
**Owner:** nobody


Working with Maxima built from commit 3a26747 with SBCL 2.3.7 on Ubuntu 16.04. Running the test suite twice, once with `share_tests = true`, leads to an out of memory error in either `rtest_ctensor` or `rtest_itensor` (seems to vary).
```
(%i1) run_testsuite (); run_testsuite (share_tests = true);
Testsuite run for SBCL 2.3.7:
Running tests in rtest_sqdnst: 13/13 tests passed
Running tests in rtest_extensions: 18/18 tests passed
Running tests in rtest_rules: 210/210 tests passed
[... etc etc ...]
Running tests in rtest_ilt: 31/31 tests passed
Running tests in ulp_tests: 63/63 tests passed


No unexpected errors found out of 13,463 tests.
Evaluation took:
  108.034 seconds of real time
  107.751332 seconds of total run time (102.396675 user, 5.354657 system)
  [ Real times consist of 4.411 seconds GC time, and 103.623 seconds non-GC time. ]
  [ Run times consist of 4.406 seconds GC time, and 103.346 seconds non-GC time. ]
  99.74% CPU
  9,620 forms interpreted
  12,149 lambdas converted
  248,913,931,560 processor cycles
  37,916,342,224 bytes consed
  
(%o0)                                done
(%i1) Testsuite run for SBCL 2.3.7:
Running tests in rtest_sqdnst: 13/13 tests passed
Running tests in rtest_extensions: 18/18 tests passed
Running tests in rtest_rules: 210/210 tests passed
[... etc etc ...]
Running tests in rtest_bernstein: 44/44 tests passed
Running tests in rtest_atensor: 20/20 tests passed
Running tests in rtest_ctensor: Thread local storage exhausted.
fatal error encountered in SBCL pid 15290 tid 15290:
%PRIMITIVE HALT called; the party is over.

Welcome to LDB, a low-level debugger for the Lisp runtime environment.
ldb>    
```
I tried some variations of `run_testsuite` and that combination is what I found that seems to cause the error repeatably. 

I haven't tried to figure out what operation in `rtest_ctensor` or `rtest_itensor` is the immediate cause of the out of memory error. Possibly simplification rules? Just a wild guess.


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