Date: Fri, 06 Mar 1998 17:38:21 -0800 From: David Greenman <dg@root.com> To: Terry Lambert <tlambert@primenet.com> Cc: semen@iclub.nsu.ru, mike@smith.net.au, freebsd-hackers@FreeBSD.ORG Subject: Re: Are mbufs aligned or bounded on something? Message-ID: <199803070138.RAA05364@implode.root.com> In-Reply-To: Your message of "Sat, 07 Mar 1998 01:05:15 GMT." <199803070105.SAA25317@usr09.primenet.com>
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>> >By the way: if i need aligned memory, should i use contigmalloc(), or >> >better to use malloc, and align block by hands? >> >> All memory returned by malloc() is guaranteed to be power of two aligned >> and won't span a page boundry if <= a page in size; there are many places in >> the kernel that rely on this. >> If you need a large chunk of memory that must be physically contiguous, >> then use contigmalloc(). > >If you need to use contigmalloc(), then you should allocate at boot >time. Yes, I forgot to mention that, thanks. -DG David Greenman Core-team/Principal Architect, The FreeBSD Project To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message
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