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From: "Joost.VandeVondele at mat dot ethz.ch" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug other/67457] segfault in libbacktrace
Date: Tue, 08 Sep 2015 17:16:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67457

--- Comment #6 from Joost VandeVondele <Joost.VandeVondele at mat dot ethz.ch> ---
(In reply to Ian Lance Taylor from comment #4)
> I committed a patch that should produce a more graceful fallback when out of
> memory.  Please see if it helps your situation.

Great! Not sure how you managed, but this gives a clean symbolic backtrace, at
least for this simple test case:

> ./a.out
Operating system error: Cannot allocate memory
Allocation would exceed memory limit

Error termination. Backtrace:

Could not print backtrace: mmap: Cannot allocate memory

Could not print backtrace: mmap: Cannot allocate memory

Could not print backtrace: mmap: Cannot allocate memory

Could not print backtrace: mmap: Cannot allocate memory

Could not print backtrace: mmap: Cannot allocate memory
#0  0x7f068c128e09 in ???
#1  0x7f068c129905 in ???
#2  0x7f068c129b02 in ???
#3  0x40081d in __foomod_MOD_foo
        at /data/vjoost/gnu/bugs/test_1.f90:7
#4  0x4008bf in MAIN__
        at /data/vjoost/gnu/bugs/test_1.f90:16
#5  0x4008f5 in main
        at /data/vjoost/gnu/bugs/test_1.f90:12