[issue8863] Display Python backtrace on SIGSEGV, SIGFPE and fatal error
Dave Malcolm
report at bugs.python.org
Wed Oct 13 16:59:51 CEST 2010
Dave Malcolm <dmalcolm at redhat.com> added the comment:
It looks like this doesn't yet have any test cases.
You probably should invoke a child python process that crashes and examine the output (perhaps running some/all of the examples in Lib/test/crashers ?); you may want to "steal" some of the wrapper code from Lib/test/test_gdb.py to do this.
Test ideas:
- generate a segfault, verify that the output is sane
- generate a FPE (likewise)
- perhaps run all of the crashers, and ensure that something sane happens (e.g. stack overflow when the limit is set to something that's beyond what the OS/CPU can cope with).
Also, please test the interaction of this with the debugger (with gdb, at any rate): as I see it, this ought to gracefully get out of the way if you're running python under a debugger. See Lib/test/test_gdb.py for more examples of how to detect gdb, and invoke it in batch mode from a test suite.
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