This would seem to be something that's at least triggered by the optimisation the debian build uses (-O3). I just did an apt-get source proftpd, which fetched proftpd_1.2.10-15sarge1.dsc and friends. Then I edited debian/rules therein changing the -O3 to -ggdb3, and commenting out the dh_strip -a line so the symbols would stay put. The aim of this was to get a decent backtrace in gdb upon SEGV.
However now I can't get it to crash, when before simply logging in,
issuing an ls and then logging out again was sufficient to cause the
SEGV, buried somewhere under pam_delay().
Of course now I say that, after reinstalling the latest packages I had
before this, via:
dpkg -i proftpd-common_1.2.10-15sarge1.0.1_i386.deb
proftpd-doc_1.2.10-15sarge1_all.deb proftpd_1.2.10-15sarge1.0.1_i386.deb
in /var/cache/apt/archives, I can't now get it to crash on quit.
Anyway, it's either a bug triggered by the optimisation, or of course
possibly a compile bug with that optimisation.
Additionally, if this is to do with the delay engine stuff, then see
bug #325304 and #308313 as mentioned in there.
-Ath
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"And it's me who is my enemy. Me who beats me up.
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