Enable coredumps on travis-ci

.travis.yml

@@ -27,6 +27,9 @@ addons:
       - aspell
       - aspell-en
       - ccache
+      - apport # for coredumps
+      - gdb
+
   coverity_scan:
     project:
       name: "grondo/flux-core"
@@ -64,9 +67,7 @@ before_install:
   - echo '#error Non-build-tree flux/core.h!' > $HOME/local/include/flux/core.h
 
 script:
- - export LD_PRELOAD=libSegFault.so
- - export SEGFAULT_USE_ALTSTACK=1
- - export LIBC_FATAL_STDERR_=1
+ - ulimit -c unlimited
  - export CC="ccache $CC"
  - export MAKECMDS="make distcheck"
  # Ensure travis builds libev such that libfaketime will work:
@@ -97,3 +98,4 @@ after_success:
 after_failure:
  - find . -name t[0-9]*.output | xargs -i sh -c 'printf "\033[31mFound {}\033[39m\n";cat {}'
  - find . -name *.broker.log | xargs -i sh -c 'printf "\033[31mFound {}\033[39m\n";cat {}'
+ - src/test/backtrace-all.sh

src/test/backtrace-all.sh

@@ -0,0 +1,18 @@
+#!/bin/sh
+#
+#  Find all possible core files under current directory. Attempt
+#  to determine exe using file(1) and dump stack trace with gdb.
+#
+say () { printf "\033[91m%s\033[39m\n" "$@" >&2; }
+die () { say "$@"; exit 1; }
+
+find . -name *.core -o -name core | while read -r line; do
+    d=$(dirname $line)
+    f=$(basename $line)
+    exe=$(file $line | sed "s/.*from '\([^ \t]*\).*'.*/\1/")
+    ( cd $d &&
+      test -x $exe || die "Failed to find executable at $exe" &&
+      say "Found corefile for $exe" &&
+      gdb --batch --quiet -ex "thread apply all bt full" $exe $f
+    )
+done