DragonFly BSD
DragonFly bugs List (threaded) for 2005-07
[Date Prev][Date Next]  [Thread Prev][Thread Next]  [Date Index][Thread Index]

Re: Minor headaches using pkgsrc daemons (samba)

From: "Simon 'corecode' Schubert" <corecode@xxxxxxxxxxxx>
Date: Tue, 12 Jul 2005 19:49:10 +0200

Lately YONETANI Tomokazu <qhwt+dfly@xxxxxxxxxx> said:
> This is very weird; if I add `return False' BEFORE FD_ZERO() in
> open_sockets_smbd(), it terminates with SIGTERM, but if I put the
> `return False' AFTER FD_ZERO() and stack smash protector detects
> the stack overflow and it catches SIGABRT.

okay, it seems that gcc with -fstack-protector (default) and -O2 places
the variables wrongly on the stack. I can give more insight if desired.
Basically listen_set is at -72(%ebp), whereas the canary is already at
-40(%ebp). sizeoF(fd_set) == 128, so figure :)

this regression should be pushed upstream. joerg, do you handle this?


Serve - BSD     +++  RENT this banner advert  +++    ASCII Ribbon   /"\
Work - Mac      +++  space for low $$$ NOW!1  +++      Campaign     \ /
Party Enjoy Relax   |   http://dragonflybsd.org      Against  HTML   \
Dude 2c 2 the max   !   http://golden-apple.biz       Mail + News   / \

Attachment: pgp00005.pgp
Description: PGP signature

[Date Prev][Date Next]  [Thread Prev][Thread Next]  [Date Index][Thread Index]