Hi Bjorn, looks like the commit was dropped, nevertheless here is some more info to try and understand what may be going on so it may benefit the posterity ;-) On Tue, 24 Jul 2007 09:48:45 -0600 Bjorn Helgaas <[email protected]> wrote: > On Tuesday 24 July 2007 08:28:05 am Sébastien Dugué wrote: > > your commit 7e92b4fc345f5b6f57585fbe5ffdb0f24d7c9b26 broke the serial console > > on my box. Adding 'legacy_serial.force=1' to my boot param as a workaround > > solves the issue, but this may be hiding bugs in Linux PnP support or > > in my firmware. > > Thanks for your report. We need to figure out why the 8250_pnp driver > didn't find your serial console device. Can you confirm that you also > have CONFIG_ACPI and CONFIG_PNPACPI in your .config? Yep, both =y CONFIG_ACPI=y CONFIG_PNPACPI=y > > If you have those, and it still doesn't work, can you collect the DSDT > dump, the output of "grep . /sys/bus/pnp/devices/*/*", and the dmesg > from your "legacy_serial.force=1" boot? Please find those attached. I also include the output from dmidecode just in case (I'm not sure it contains anything interesting in this case though). dsdt.dsl -> DSDT dump dmi.txt -> output from dmidecode pnp-info.txt -> output of the grep dmesg-ok.txt -> dmesg with 'legacy_serial.force=1' (CONFIG_PNP_DEBUG=y) dmesg-bad.txt -> dmesg without 'legacy_serial.force=1' (CONFIG_PNP_DEBUG=y) > Then we can tell which port > the blind probe finds and whether it's described somewhere by ACPI. > > Thanks, > Bjorn Thanks, Sébastien. > > > The box is a dual HT Xeon running a vanilla 2.6.22 x86_64 kernel > > > > here is my .config: > > > > CONFIG_PNP=y > > CONFIG_SERIAL_8250=y > > CONFIG_SERIAL_8250_CONSOLE=y > > CONFIG_SERIAL_8250_PCI=y > > CONFIG_SERIAL_8250_PNP=y > > CONFIG_SERIAL_8250_NR_UARTS=4 > > CONFIG_SERIAL_8250_RUNTIME_UARTS=4 > > CONFIG_SERIAL_8250_EXTENDED=y > > CONFIG_SERIAL_8250_SHARE_IRQ=y > > CONFIG_SERIAL_8250_DETECT_IRQ=y > > > > lspci output attached. > > > > Any ideas to help me debug this? > > > > If you need more info (like DSDT dump), just ask. > > > > Thanks, > > > > Sébastien. > > > > > > > >
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