Date: Thu, 26 Sep 2002 23:07:11 +0100 From: Josef Karthauser <joe@FreeBSD.org> To: Julian Elischer <julian@elischer.org> Cc: Bruce M Simpson <bms@spc.org>, Mark Santcroos <marks@ripe.net>, freebsd-hackers@FreeBSD.ORG Subject: Re: vmware reads disk on non-sector boundary Message-ID: <20020926220711.GB11316@genius.tao.org.uk> In-Reply-To: <Pine.BSF.4.21.0209261334510.51936-100000@InterJet.elischer.org> References: <20020926185036.GB10421@genius.tao.org.uk> <Pine.BSF.4.21.0209261334510.51936-100000@InterJet.elischer.org>
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[-- Attachment #1 --] On Thu, Sep 26, 2002 at 01:35:43PM -0700, Julian Elischer wrote: > > > > Take a look at /sys/compat/linux/linux_stats.c, > > > > revision 1.29 > > date: 2001/01/14 23:33:50; author: joe; state: Exp; lines: +18 -11 > > Instead of hard coding the major numbers for IDE and SCSI disks > > look in the device's cdevsw for the D_DISK flag. > > ---------------------------- > > This fixes the problem with VMWARE not being able to use raw disks. This should have read, "Linux uses block devices to access raw drives, but we've got rid of them in -current and so VMWare is having a hard time running off raw partitions. Pretending that disk character device nodes are block devices appears to make VMWare run off raw drives again." > > but it still doesn't help with partial block reads.. > That didn't appear to be a problem with VMWare2. Joe -- "As far as the laws of mathematics refer to reality, they are not certain; and as far as they are certain, they do not refer to reality." - Albert Einstein, 1921 [-- Attachment #2 --] -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.0.7 (FreeBSD) iEYEARECAAYFAj2ThQ8ACgkQXVIcjOaxUBYXQACgtk2fTbAXQa8ZdJFy1+dRB3R1 j7EAoOp+Ie8uwtxNSQ8W0G/jDnvpVTY/ =j4OK -----END PGP SIGNATURE-----
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