Date: Wed, 10 Mar 1999 23:51:29 -0800 (PST) From: Matthew Dillon <dillon@apollo.backplane.com> To: "Mark J. Taylor" <mtaylor@cybernet.com> Cc: freebsd-hackers@FreeBSD.ORG, jkh@FreeBSD.ORG Subject: Re: ccd driver problems with > 2GB segments, +fix Message-ID: <199903110751.XAA62027@apollo.backplane.com> References: <XFMail.990310174753.mtaylor@cybernet.com>
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Interesting. What if each disk is 8GB and we set the stripe
size to 8GB? Won't that break the u_long ( i.e. was broken
before, and is still broken now ). Perhaps these variables
should be 64 bit quantities throughout except for the
bp->b_count?
-Matt
Matthew Dillon
<dillon@backplane.com>
:Fix:
:The ccd driver has a variable "bcount" that is a long: it needs
:to be a u_long. And, a 64 bit int is shifted into a 32 bit int
:in ccdbuffer(): the 32 bit int must changed to be a 64 bit int.
:
:This second change has already been made in NetBSD (somebody else
:figured it out), where the ccd driver originated from. It was
:rather tricky to find: the math involving block numbers and ccd
:...
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