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- Newsgroups: comp.os.linux
- Path: sparky!uunet!mcsun!sun4nl!dutrun!donau!zen.et.tudelft.nl!wolff
- From: wolff@zen.et.tudelft.nl (Rogier Wolff)
- Subject: Re: Floppy DMA, question and patch (?)
- Message-ID: <1992Dec15.214055.16379@donau.et.tudelft.nl>
- Keywords: floppy,dma,patch,kernel,0.98.6,1MB,16MB,unofficial
- Sender: news@donau.et.tudelft.nl (UseNet News System)
- Nntp-Posting-Host: zen.et.tudelft.nl
- Organization: Delft University of Technology, Dept. of Electrical Engineering
- References: <If=DXGK00Vp3MDgVMZ@andrew.cmu.edu> <1992Dec15.112658.13063@klaava.Helsinki.FI>
- Date: Tue, 15 Dec 1992 21:40:55 GMT
- Lines: 18
-
- torvalds@klaava.Helsinki.FI (Linus Torvalds) writes:
-
- >like some SCSI cards which use DMA). So changing the limit to 16MB
- >should work fine. Not that it probably matters very much: 99% of the
- >floppy IO reads go through the track buffer, and writes aren't exactly
- >timing-critical in most circumstances..
-
- > Linus
-
- The 1% that doesn't go through the track buffer are the blocks that
- surround an unreadable block. And as I use Linux to recover from
- "destroyed" blocks, that would make things ever worse: Around a bad
- block I'd get good readable (recoverable) data, but not in my buffer....
-
- Roger.
- --
- **** a 486 in V86 mode is like a VW buggy with a 6 litre V12 motor. ****
- EMail: wolff@duteca.et.tudelft.nl ** Tel +31-15-783644 or +31-15-142371
-