That also crashes with: 86622 segmentation fault ./sage --python I tested this both with building sage against homebrew python 3.8.6 and against sage's default python 3.8.5 and the same error occurred in both cases. I don't have this problem using my system-wide numpy so it's possible that because sage numpy is built from source that maybe one of my homebrew libraries is causing issues. I found https://github.com/numpy/numpy/issues/11551 which could be relevant and might indicate that it's not a sage problem.
I should also add that if I lower the dimension of x to 100000 then it works without problem. On Sunday, October 11, 2020 at 3:26:11 PM UTC-4 [email protected] wrote: > On Sun, Oct 11, 2020 at 8:14 PM Zachary Scherr <[email protected]> wrote: > > > > Hi All, > > > > I was doing some bug hunting and noticed that scipy's pytests crashed > pretty early. I tracked down exactly what was causing the problem and > noticed it can be reproduced by the following sequence of commands: > > > > sage: import numpy as np > > sage: x = np.random.randn(1000000,2) > > sage: y = np.random.randn(2,2) > > sage: x.dot(y) > > please test this in "plain" Sage python, i.e. does > > ./sage --python > > >>> import numpy as np > >>> x = np.random.randn(1000000,2) > >>> y = np.random.randn(2,2) > >>> x.dot(y) > > reproduce the crash? > > > > > > > produces: > > > > ------------------------------------------------------------------------ > > 0 signals.cpython-38-darwin.so 0x00000001088bc62a print_backtrace + 58 > > 1 signals.cpython-38-darwin.so 0x00000001088c0277 sigdie + 39 > > 2 signals.cpython-38-darwin.so 0x00000001088c0212 sigdie_for_sig + 290 > > 3 libsystem_platform.dylib 0x00007fff6c88e5fd _sigtramp + 29 > > ------------------------------------------------------------------------ > > Unhandled SIGBUS: A bus error occurred. > > This probably occurred because a *compiled* module has a bug > > in it and is not properly wrapped with sig_on(), sig_off(). > > Python will now terminate. > > ------------------------------------------------------------------------ > > /Users/zscherr/sage/src/bin/sage-python: line 2: 78812 Bus error: 10 > sage -python "$@" > > > > I haven't tested on any other platforms, but for what it's worth I have > Catalina 10.15.7 with Xcode 12. > > > > Thanks, > > Zach > > > > -- > > You received this message because you are subscribed to the Google > Groups "sage-devel" group. > > To unsubscribe from this group and stop receiving emails from it, send > an email to [email protected]. > > To view this discussion on the web visit > https://groups.google.com/d/msgid/sage-devel/28f58136-d3c7-40b7-9a46-36fc347acc2en%40googlegroups.com > . > -- You received this message because you are subscribed to the Google Groups "sage-devel" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/sage-devel/a67ca4b5-526b-40d7-a476-520d49890207n%40googlegroups.com.
