On 09-Jul-2003 Nate Lawson wrote: > On Wed, 9 Jul 2003, John Baldwin wrote: >> On 09-Jul-2003 Nate Lawson wrote: >> > http://root.org/~nate/freebsd/ec-new.diff >> >> Not as broken as the last patch, but still broken for me: >> >> ACPI-0432: *** Error: Handler for [EmbeddedControl] returned AE_NO_HARDWARE_RESPONSE >> ACPI-1287: *** Error: Method execution failed [\\_SB_.PCI0.PX41.SECN.BEXT] (Node >> 0xc3342260), >> AE_NO_HARDWARE_RESPONSE >> ACPI-1287: *** Error: Method execution failed [\\_SB_.PCI0.PX41.SECN.MAST._STA] (Node >> 0xc3342320), AE_NO_HARDWARE_RESPONSE > > Thanks for testing. > > Try changing the 1000 in line 658 to 10000. Your EC seems to take more > than 1 ms to respond. The old behavior was 10 ms which I thought was too > long but apparently your system requires this. Yes, this gets rid of the message at boot times. I do get some of these messages while the system is running, but I used to receive those erros before. The only difference is that now the error code is AE_NO_HARDWARE_RESPONSE rather than AE_ERROR. > BTW, what are the guidelines for DELAY vs. msleep? I'm holding a mutex > for the local EC for up to 10 ms in that case, in increments of DELAY(10). > I would think that somewhere around 1 ms, the delay needs to become an > msleep so other device interrupts can occur (i.e. EcGpeHandler). I'm > thinking about having the loop up to 1 ms be based on DELAY, and then 9 > calls to msleep(..., 1) for the really slow devices. Let me know what you > think is best. That sounds fine to me. 10ms would be a very long time to hold a mutex. > -Nate -- John Baldwin <jhb_at_FreeBSD.org> <>< http://www.FreeBSD.org/~jhb/ "Power Users Use the Power to Serve!" - http://www.FreeBSD.org/Received on Wed Jul 09 2003 - 12:47:09 UTC
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