Date: Sun, 21 Jul 2002 14:54:00 +1000 (EST) From: Bruce Evans <bde@zeta.org.au> To: Bakul Shah <bakul@bitblocks.com> Cc: current@FreeBSD.ORG, <ache@FreeBSD.ORG> Subject: Re: suspend bug Message-ID: <20020721145145.R19118-100000@gamplex.bde.org> In-Reply-To: <20020721141841.H18880-100000@gamplex.bde.org>
next in thread | previous in thread | raw e-mail | index | archive | help
On Sun, 21 Jul 2002, Bruce Evans wrote: > On Thu, 18 Jul 2002, Bakul Shah wrote: > > > Try this: > > > > $ csh > > % su > > Password: > > % stop $$ > > > > Suspended (signal) > > %fg > > > > At which point you will lose you login shell. > > > > Prior to KSE one could switch between an su'ed shell and a > > normal shell at will by using stop $$ and fg. > > Some more details: > - this happens for csh but not for bash-1. > - ktracing everything shows further strange behaviour. ktrace causes a > kernel printf "Out of ktrace request objects.". The login shell is > not lost immediately. You get a shell prompt, but at least tty echo is > broken, and hitting return a few times causes all the shells to exit. > > > Is this breakage considered a bug or a feature? > > Bug. The bug is actually in su. It happens with a pre-KSEIII kernel. Backing out rev.1.54 of su.c (which was apparently supposed to fix a related bug tcsh's fg command) fixes it. Bruce To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?20020721145145.R19118-100000>