Date: Tue, 23 Nov 2004 23:25:59 -0800 From: Nate Lawson <nate@root.org> To: "M. Warner Losh" <imp@bsdimp.com> Cc: acpi@freebsd.org Subject: Re: PATCH: power down acpi and pci devices in suspend/resume Message-ID: <41A43787.7070809@root.org> In-Reply-To: <20041121.081521.102766341.imp@bsdimp.com> References: <419EF7AD.8050007@root.org> <20041121.081521.102766341.imp@bsdimp.com>
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M. Warner Losh wrote: > In message: <419EF7AD.8050007@root.org> > Nate Lawson <nate@root.org> writes: > : cbb0: bad Vcc request. ctrl=0xffffff88, status=0xffffffff > : cbb_power: 0V > : cbb1: bad Vcc request. ctrl=0xffffff88, status=0xffffffff > : cbb_power: 0V > > This looks like a problem to me. > > Warner I did a suspend with dhclient active and an an0 card present and got this: cbb0: bad Vcc request. ctrl=0xffffff88, status=0xffffffff cbb_power: 0V cbb1: bad Vcc request. ctrl=0xffffff88, status=0xffffffff cbb_power: 0V fxp0: SCB timeout: 0xff 0xff 0xff 0xffff fxp0: SCB timeout: 0xff 0xff 0xff 0xffff fxp0: SCB timeout: 0xff 0xff 0xff 0xffff fxp0: DMA timeout fxp0: SCB timeout: 0xff 0xff 0xff 0xffff fxp0: DMA timeout fxp0: SCB timeout: 0xff 0xff 0xff 0xffff fxp0: DMA timeout fxp0: SCB timeout: 0xff 0xff 0xff 0xffff fxp0: SCB timeout: 0xff 0xff 0xff 0xffff fxp0: SCB timeout: 0xff 0xff 0xff 0xffff fxp0: SCB timeout: 0xff 0xff 0xff 0xffff fxp0: SCB timeout: 0xff 0xff 0xff 0xffff fxp0: DMA timeout fxp0: SCB timeout: 0xff 0xff 0xff 0xffff fxp0: DMA timeout fxp0: SCB timeout: 0xff 0xff 0xff 0xffff fxp0: DMA timeout fxp0: SCB timeout: 0xff 0xff 0xff 0xffff fxp0: SCB timeout: 0xff 0xff 0xff 0xffff Note that the policy is to set all PCI and ACPI devices to D3 when suspending unless an _SxD method says to use a different power state. fxp0 isn't present in the ACPI namespace but both cardbus ports are and both have _S3D methods that say to use D3 for S3! So this is not an error unless it's in cbb needing to do more before I power it down. I don't get any of the above messages on suspend without my patch. Suggestions? What does the "bad Vcc request" message mean? -Nate
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