Date: Mon, 18 Jan 1999 12:29:31 -0800 From: Mike Smith <mike@smith.net.au> To: Brian Feldman <green@unixhelp.org> Cc: Mike Smith <mike@smith.net.au>, Julian Elischer <julian@whistle.com>, current@FreeBSD.ORG Subject: Re: kernel malloc and M_CANWAIT Message-ID: <199901182029.MAA18468@dingo.cdrom.com> In-Reply-To: Your message of "Mon, 18 Jan 1999 15:29:11 EST." <Pine.BSF.4.05.9901181527080.18713-100000@janus.syracuse.net>
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> On Mon, 18 Jan 1999, Mike Smith wrote: > > > > > > > Here at whistle we are trying to remember about a conversation > > > regarding malloc that occured recently. Maybe others can help. > > > > > > There was some talk about the fact that malloc(..M_CANWAIT) > > > can now return with a failure. Is that true? > > > > Yes; it's necessary to do this to allow some chance of avoiding > > deadlock. > > Ouch! Is everything in src-sys already checking the return value of an M_WAITOK? Probably not, no. I had some patches from Andrzej who was trying to do it just for the mbuf allocator case; there's definitely a call for someone to take the time to clean things up. -- \\ Sometimes you're ahead, \\ Mike Smith \\ sometimes you're behind. \\ mike@smith.net.au \\ The race is long, and in the \\ msmith@freebsd.org \\ end it's only with yourself. \\ msmith@cdrom.com To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message
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