[issue25276] test_decimal sometimes crash on PPC64 AIX 3.x

2015-10-02 Thread Stefan Krah
Stefan Krah added the comment: I've checked: test_decimal does not require abnormal amounts of memory or stack. On Linux/x86 a stack size of 256 (default 8192) is sufficient, and memory requirements aren't that high. We assumed that there is some memory limit on the buildbot, since in a later

[issue25276] test_decimal sometimes crash on PPC64 AIX 3.x

2015-10-01 Thread Stefan Krah
Stefan Krah added the comment: Usually these segfaults are toolchain bugs (I've had at least 8, including gcc, suncc, libc...). Just a couple of observations: - The bot builds with -DCONFIG_32=1 -DANSI=1 despite being PPC64. - When we had an AIX snakebite machine, the xlc compile worked

[issue25276] test_decimal sometimes crash on PPC64 AIX 3.x

2015-10-01 Thread David Edelsohn
David Edelsohn added the comment: The system has 128GB of memory. The process limits are set to unlimited for data. AIX defaults to 32 bit, although all processors are 64 bit, so the buildbot runs as 32 bit. What does low free memory in the buildbot mean? I'm surprised that Python requires

[issue25276] test_decimal sometimes crash on PPC64 AIX 3.x

2015-09-30 Thread STINNER Victor
New submission from STINNER Victor: This buildbot has low free memory. Maybe some part of _decimal doesn't handle an allocation failure? http://buildbot.python.org/all/builders/PPC64%20AIX%203.x/builds/4173/steps/test/logs/stdio ... [307/399/10] test_decimal Fatal Python error: Segmentation

[issue25276] test_decimal sometimes crash on PPC64 AIX 3.x

2015-09-30 Thread Serhiy Storchaka
Changes by Serhiy Storchaka : -- components: +Extension Modules type: -> crash ___ Python tracker ___