Issue 7614: Python 2.6.4 segfaults (original) (raw)

Issue7614

Created on 2009-12-31 21:33 by ttsiod, last changed 2022-04-11 14:56 by admin. This issue is now closed.

Files
File name Uploaded Description Edit
sieve.py ttsiod,2009-12-31 21:33 Sieve of Eratosthenes
Messages (2)
msg97109 - (view) Author: ttsiod (ttsiod) Date: 2009-12-31 21:33
I found a nice yield-based implementation of the sieve of Eratosthenes. I tried to find the last prime number less than 1.000.000 (1M) - so I had to increase the recursion limit (via sys.setrecursionlimit). It seemed to work - but after running for about 3 minutes, the Python interpreter (2.6.4) crashed with a segmentation fault. I am attaching the code - it uses no libraries except for "sys" (it needs it to set the recursionlimit).
msg97110 - (view) Author: Mark Dickinson (mark.dickinson) * (Python committer) Date: 2009-12-31 21:58
The recursion limit exists precisely so that Python can avoid overflowing the C stack and hence crashing. So if you increase the recursion limit without also increasing the stack space assigned to the process, you should expect a crash. Closing as won't fix.
History
Date User Action Args
2022-04-11 14:56:56 admin set github: 51863
2009-12-31 21:58:44 mark.dickinson set status: open -> closednosy: + mark.dickinsonmessages: + resolution: wont fix
2009-12-31 21:33:13 ttsiod create