Messages in this thread | | | Date | Wed, 16 Dec 1998 10:21:58 -0500 | From | Mark Lord <> | Subject | Re: Problem: Bad blocks on IDE disk |
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Andrzej Krzysztofowicz wrote: > > On Mon, 14 Dec 1998, Mark Lord wrote: > > > Andrzej Krzysztofowicz wrote: > > > > > > Hi, > > > Recently a few bad sectors appeared on my IDE disk. And I observed > > > wrong (in my opinion) behaviour of IDE driver while handling the bad > > > sectors: > > > > > > 1. PIO mode > > > when multicount is set to non zero value the IDE driver generates > > > an error even if reading of a bad sector is not directly requested, > > > but the it is located in the > > > <block_requested+1>..<block_requested+multicount_value-1> > > > area. > > > > This is not a driver issue, but rather, a filesystem one. > > I'm rather sure that this is a driver problem. I tested it doing .. Read-ahead processing happens *before* handing off to the low-level (IDE in this case) driver.
The driver doesn't know anything about readahead.
Get it now?
Of course, you could always rework ll_rw_blk.c to alter that behaviour. -- mlord@pobox.com
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