Date: Tue, 08 Jan 2002 20:03:03 +0000 From: Ian Dowse <iedowse@maths.tcd.ie> To: Wilko Bulte <wkb@freebie.xs4all.nl> Cc: Sheldon Hearn <sheldonh@starjuice.net>, John Baldwin <jhb@FreeBSD.org>, cvs-committers@FreeBSD.org, cvs-all@FreeBSD.org Subject: Re: cvs commit: src/release/sysinstall install.c Message-ID: <200201082003.aa40140@salmon.maths.tcd.ie> In-Reply-To: Your message of "Tue, 08 Jan 2002 19:30:27 %2B0100." <20020108193027.A16263@freebie.xs4all.nl>
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In message <20020108193027.A16263@freebie.xs4all.nl>, Wilko Bulte writes: > >What still puzzles me is why it works for some us without problems. >Does anyone have ideas on that one? I think it may relate to the size of the file being loaded by boot1. What size is /boot/loader on the alpha? A 16k data or directory block written to the data buffer `iobuf' will overwrite the 8k indirection buffer `mapbuf', and a 16k indirection block written there will overwrite other globals. So if there are no indirection blocks then maybe it will work (size <= 196608 bytes). There is also an optimisation in readit() where block-aligned data is read directly into the caller's buffer, which may confuse things. In the i386 case it probably works for similar reasons, though the data layout is quite different. I suspect that loading a kernel directly from boot2 will fail reliably on a 16k/2k filesystem. Ian To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe cvs-all" in the body of the message
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