Date: Tue, 08 Aug 2006 16:53:19 +0200 From: =?UTF-8?B?RXJpayBOw7hyZ2FhcmQ=?= <norgaard@locolomo.org> To: =?UTF-8?B?RXJpayBOw7hyZ2FhcmQ=?= <norgaard@locolomo.org> Cc: freebsd-mobile@freebsd.org Subject: Solved: ACPI problems: System grinds to a halt Message-ID: <44D8A55F.4040502@locolomo.org> In-Reply-To: <44D36569.1000104@locolomo.org> References: <44D36569.1000104@locolomo.org>
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This is a cryptographically signed message in MIME format. --------------ms050003080909090609070608 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit I have eventually found the solution, for others who may have problems, the solution is below: Erik Nørgaard wrote: > I have problems booting with ACPI enabled. The result varies among three: > > 1) The kernel will print a number of error messages: > > ACPI-0800: *** ERROR: AcpiEvGpeDispatch: No handler or methdo > for GPE[ 6], disabling event > > then hang after identifying the hard disk. > > 2) Same as above, but the messages repeats flickering over the screen > apparently in an infinite loop. > > 3) The system boots up, but with seriously reduced performance: > > Booting takes 3min20sec before the login console is presented, and > building the acpi kernel module takes 54min15sec! With acpi disabled > booting takes 30sec, and building the acpi module 19sec. > > Evidently something is going on, > > I beleive it to be hardware conflicts. I have had interrupt storm on > irq5 when configuring the wireless nic which is on irq10 (default), and > on irq7 when moving a connected usb mouse. Usb devices may be found if > attached before boot, although this is no guarantee that they will work. > > Another peculiar observation is that it seems to give more consistent > result when acpi is built with debugging on(!). > > ACPI however seems to be supported when/if the system comes up: The > device is found and kernel tunables are there. 'halt -p' will halt and > power down the machine. All the problems I have had, including the described problems with iwi (other thread) turned out to be related to one issue: There is a conflict between acpi and apic. apic is compiled in the GENERIC kernel, and the config leaves no clue of what it's for. Looking in the NOTES, "The apic device enables the use of the I/O APIC for interrupt delivery" and is required for SMP. This explains the interrupt problems when both ACPI and APIC attempts to handle interrupts - I guess this should result in a PR? Anyway, two equivalent solutions seem to be: 1) Disable apic, set hint.apic.0.disabled="1" in loader.conf 2) Compile the kernel without "device apic" I have only tried 2) though. Cheers, Erik -- Ph: +34.666334818 web: http://www.locolomo.org X.509 Certificate: http://www.locolomo.org/crt/8D03551FFCE04F0C.crt Key ID: 69:79:B8:2C:E3:8F:E7:BE:5D:C3:C3:B1:74:62:B8:3F:9F:1F:69:B9 --------------ms050003080909090609070608 Content-Type: application/x-pkcs7-signature; name="smime.p7s" Content-Transfer-Encoding: base64 Content-Disposition: attachment; filename="smime.p7s" Content-Description: S/MIME Cryptographic Signature MIAGCSqGSIb3DQEHAqCAMIACAQExCzAJBgUrDgMCGgUAMIAGCSqGSIb3DQEHAQAAoIIL5jCC Be8wggPXoAMCAQICCQCNA1Uf/OBPDDANBgkqhkiG9w0BAQUFADCBmTELMAkGA1UEBhMCRVMx GDAWBgNVBAoTD0RhZW1vbiBTZWN1cml0eTEeMBwGA1UECxMVQ2VydGlmaWNhdGUgQXV0aG9y aXR5MR4wHAYDVQQDExVDZXJ0aWZpY2F0ZSBBdXRob3JpdHkxJDAiBgkqhkiG9w0BCQEWFWNh QGRhZW1vbnNlY3VyaXR5LmNvbTEKMAgGA1UEBRMBMDAeFw0wNjA0MjAxMzE2NTBaFw0wNzA0 MjAxMzE2NTBaMGIxCzAJBgNVBAYTAkVTMRUwEwYDVQQKEwxMb2NvTG9tby5PcmcxFjAUBgNV BAMTDUVyaWsgTm9yZ2FhcmQxJDAiBgkqhkiG9w0BCQEWFW5vcmdhYXJkQGxvY29sb21vLm9y 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