Alan Cox wrote:
On Tue, 20 May 2008 02:17:52 +0900
Tejun Heo <htejun@xxxxxxxxx> wrote:
EH retries were delayed by 5 seconds to ensure that resets don't occur
back-to-back. However, this 5 second delay is superflous or excessive
in many cases. For example, after IDENTIFY times out, there's no
reason to wait five more seconds before retrying.
You'll crash some ATAPI CD-ROM drives without that delay - at least for
PATA. As in power cycle required to get it back.
Perhaps we should check cable type here ?
No, no, the five secs is still there.
e.g. Previously:
reset (fail) - 5s retry wait - reset
reset - IDENTIFY (30s timeout) - 5s retry wait - reset
Now:
reset (fail) - 5s retry wait - reset
reset - IDENTIFY (30s timeout) - reset
So, the inter-reset delay is never shorter than 5s.
--
tejun
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