On Fri, May 31, 2013 at 03:18:56AM +0000, Gonglei (Arei) wrote:
>    IDE_TIMEOUT is defined 32s. But we encountered its timeout in
>    some cases, and then loading disk failed in VM.  In order to
>    reduce the probability of timeout, we want to enlarge the
>    IDE_TIMEOUT, such as 120s.  We verified this modification worked
>    for us. But we are wondering if this modification may cause other
>    potential issues.  Why set IDE_TIMEOUT to 32s? Thanks!

The ATA specification specifies the maximum response time for many
commands to be 30 seconds.  The extra 2 seconds were thrown in for
safety.

-Kevin

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