Doug White wrote:
Anyway, I now have a working kernel. I presume that I should file a PR
on this.
Yes please.
Done - kern/79332
Do you have a long delay at the point where the bogus messages are printed
in the newer kernel, but in the older? The change implies that it will get
out of a busted channel faster, but your disk apparently needs a longer
delay. If its hanging for the full 30s on the working kernel then that
woud explain why shortening the dealy ends up with a missing disk.
No, there is about a 3 second delay.
If you want to try another workaround, increase the ata_udelay(100000); by
2, and progressively longer until your disk reappears. (You may want to
reduce the for exit condition on timeout since it'll wait 310 iterations.)
If that doesn't work, start increasing the DELAY()s.
I've increased it to 400000 and it fixes the problem - 300000 doesn't.
I'll update the PR to reflect this.
Thanks for your help,
Graham
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