[ntp:bugs] [Bug 1864] Autokey authentication causes core dump, ntpd crash

[bugzilla-daemon at ntp.org]

https://bugs.ntp.org/show_bug.cgi?id=1864

--- Comment #17 from Dave Hart <hart at ntp.org> 2011-03-29 02:37:07 UTC ---
I'm very grateful to Steve for working out the configuration issues.  My only
disappointment is while he solved the problem of showing how to get a 4.2.7
client autokeying happily with a 4.2.6p3 server, neither of us has had any luck
reproducing the crash, which I suspect is a real bug in the ntp_config.c or
ntp_parser.y code.

In that light, I could use your assistance, Rich, in getting a bit more info
about the crash from a non-optimized backtrace.  One approach would be to
simply reconfigure your 4.2.7p138 build with something like

rm -f config.cache
configure 'CFLAGS=-g -O0' --your-normal-configure-args-here
make clean && make
gdb .../ntpd ./core
bt

Or, likely equivalently, put together a set of client autokey files and
ntp.conf which reveal no interesting secrets but which I can use to reproduce
the crash on startup of 4.2.7.  That would be preferable as I can poke around
and not rely on enough information being in a single non-optimized backtrace to
fix it.

Thanks to everyone for the rapid progress.

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