Date: Mon, 1 Mar 1999 14:34:50 -0500 (EST) From: Luoqi Chen <luoqi@watermarkgroup.com> To: dillon@apollo.backplane.com, freebsd-hackers@FreeBSD.ORG, mjacob@feral.com Subject: Re: Panic in FFS/4.0 as of yesterday - update Message-ID: <199903011934.OAA23618@lor.watermarkgroup.com>
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> New bugs found ( and not fixed ): > > * exec_map can only hold 16 exec'ing processes at once. It needs a > counter and a sleep/wait. > > Sometimes when I ran Matt J's 'breakit' script, a background program > would 'Abort trap' out instantly on startup because more then 16 > were doing an exec at once. This can only occur in a low-memory > or heavy-I/O situation. > There could also be potential deadlocks when all 16 processes hold a lot in exec_map and then all of them try to allocate more from exec_map (for loading elf interpreter). The simplest solution is to use a separate map. -lq To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message
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