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SubjectRe: libata error handling
On 1/6/07, Kasper Sandberg <lkml@metanurb.dk> wrote:
> On Sat, 2007-01-06 at 13:01 -0600, Robert Hancock wrote:
> > Kasper Sandberg wrote:
> > > On Sat, 2007-01-06 at 12:21 -0600, Robert Hancock wrote:
> > >> Kasper Sandberg wrote:
> > >>> i have heard that libata has much better error handling (this is what
> > >>> made me try it), and from initial observations, that appears to be very
> > >>> true, however, im wondering, is there something i can do to get
> > >>> extremely verbose information from libata? for example if it corrects
> > >>> errors? cause i'd really like to know if it still happens, and if i
> > >>> perhaps get corruption as before, even though not severe.
> > >> Any errors, timeouts or retries would be showing up in dmesg..
> > > how sure can i be of this? is it 100% sure that i have not encountered
> > > this error then?
> >
> > Pretty sure, I'm quite certain libata never does any silent error recovery..

AFAIR this is true
(at least it was last time that I've looked at libata eh code)

> okay, i suppose i face two possibilities then:
> 1: libata drivers are simply better, and the error does not occur
> because of driver bugs in the old ide drivers

very likely however pdc202xx_new bugs should be fixed in 2.6.20-rc3
(as it contains a lot of bugfixes for this driver from Sergei Shtylyov)

> 2: it hasnt happened to me on libata yet (though this is also abit
> weird, as it has now ran far longer than were previously required to hit
> the errors)
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