Thanks for this update.

I can confirm that with the libata.dma=1 setting, the boot is stable for
my ASRock 990FX Extreme4, and has no more problems.

At first glance, libata.dma=1 would appear to be forcing DMA to ON,
rather than OFF as suggested above, but that's not so important  to me
in comparison with  having a stable boot up.  However, just for
comparison purposes I tried libata.dma=0 as well, and that seemed to be
equally stable during boot up.

Therefore I propose that perhaps the problem is not so much in which
value libata.dma ends up being set to, but more in the algorithm that
tries to automatically determine which is the appropriate value for my
system.  Does that make sense or help tie down the precise location of
the bug in the code?

-- 
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/916677

Title:
  Boot problem with VIA VT6415 PATA IDE Host Controller and PATA CD/DVD-
  ROM (checked on ASRock 990fx and 890fx motherboards)

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/916677/+subscriptions

-- 
ubuntu-bugs mailing list
[email protected]
https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs

Reply via email to