short temporary lockup on resume: ata1.00: exception Emask

[wvengen]

Binary package hint: linux-source-2.6.20

When resuming from suspend-to-ram, there is a delay of 30 seconds before the system can be used. Sometimes the system is still in text-mode, other times the console has already been switched to X. But trying to access the disk fails the first 30 seconds out of sleep in all detected cases. I have a VT6420 SATA RAID controller.

  $ uname -a
  Linux moses 2.6.20-16-generic #2 SMP Wed May 23 00:30:47 UTC 2007 x86_64 GNU/Linux

[wvengen (wvengen)]

Some more info as attachments.

[wvengen (wvengen)]

This bug may be equal to bug #112893, but as it's another chipset I still filed it separately.

[wvengen (wvengen)]

Checked in Gutsy, the problem seems to have gone. No delay anymore :)
$ uname -a
Linux me 2.6.22-14-generic #1 SMP Sun Oct 14 21:45:15 GMT 2007 x86_64 GNU/Linux
~$ dmesg | grep ' ata' | tail -n 4
[ 2.011170] ata3.00: configured for UDMA/100
[ 1.234215] ata2: port disabled. ignoring.
[ 1.872038] ata1.00: configured for UDMA/33
[ 1.912462] ata3.00: configured for UDMA/100

[Launchpad Janitor (janitor)]

Beginning with the Hardy Heron 8.04 development cycle, all open Ubuntu kernel bugs need to be reported against the "linux" kernel package. We are automatically migrating this bug to the new "linux" package. However, development has already began for the upcoming Intrepid Ibex 8.10 release. It would be helpful if you could test the upcoming release and verify if this is still an issue - http://www.ubuntu.com/testing . If the issue still exists, please update this report by changing the Status of the "linux" task from "Incomplete" to "New". We appreciate your patience and understanding as we make this transition. Thanks!

[Leann Ogasawara (leannogasawara)]

The Ubuntu Kernel Team is planning to move to the 2.6.27 kernel for the upcoming Intrepid Ibex 8.10 release. As a result, the kernel team would appreciate it if you could please test this newer 2.6.27 Ubuntu kernel. There are one of two ways you should be able to test:

1) If you are comfortable installing packages on your own, the linux-image-2.6.27-* package is currently available for you to install and test.

--or--

2) The upcoming Alpha5 for Intrepid Ibex 8.10 will contain this newer 2.6.27 Ubuntu kernel. Alpha5 is set to be released Thursday Sept 4. Please watch http://www.ubuntu.com/testing for Alpha5 to be announced. You should then be able to test via a LiveCD.

Please let us know immediately if this newer 2.6.27 kernel resolves the bug reported here or if the issue remains. More importantly, please open a new bug report for each new bug/regression introduced by the 2.6.27 kernel and tag the bug report with 'linux-2.6.27'. Also, please specifically note if the issue does or does not appear in the 2.6.26 kernel. Thanks again, we really appreicate your help and feedback.

[Leann Ogasawara (leannogasawara)]

Marking Fix Released per comment 5 - https://bugs.edge.launchpad.net/ubuntu/+bug/118646/comments/5