[Bug 191137] Re: [Hardy] ACPI Embedded Controller (EC) stops boot when kernel boot 'quiet' option is enabled
v.stiff at gmail.com
Sun Apr 13 17:37:09 UTC 2008
I've encountered lock when boot on battery only.
On Sun, Apr 13, 2008 at 8:56 PM, TJ <ubuntu at tjworld.net> wrote:
> Václav, your result is interesting, thank you. I didn't have time to
> endlessly repeat the reboot tests when I did the DSDT patch so it is
> possible that it was in some way coincidental that the kernel didn't
> crash those times.
> Since doing that patch and having time to think about things more I'm
> leaning towards the idea that the power management hardware is
> generating the unhandled event when it sees the AC adapter is connected
> - not the EC._REG() method because of early init. If this 'new' theory
> is correct, then when the EC GPE events are enabled early the hardware
> can start interrupting. The problem is, as soon as I add even minimal
> debug messages to try and trace the code-path the bug goes away - the
> same as when removing the "quiet" kernel boot option!
> [Hardy] ACPI Embedded Controller (EC) stops boot when kernel boot 'quiet'
> option is enabled
> You received this bug notification because you are a direct subscriber
> of the bug.
** Attachment added: "unnamed"
[Hardy] ACPI Embedded Controller (EC) stops boot when kernel boot 'quiet' option is enabled
You received this bug notification because you are a member of Kernel
Bugs, which is subscribed to Linux.
More information about the kernel-bugs