Am 04.03.2014 22:26, schrieb Peter Senna Tschudin: > I have reported a bug more than two years ago and it is still > affecting me. The bug report gives some information: > > https://bugzilla.redhat.com/show_bug.cgi?id=787299 > > I have tried basic debug instructions from: > https://www.kernel.org/doc/Documentation/power/basic-pm-debugging.txt > > And everything works as expected when: > # echo freeze > /sys/power/state > # echo disk > /sys/power/state > > I have asked for help for fixing it: > https://lkml.org/lkml/2013/11/1/186 > > But I don't have a serial port. How can I debug this issue without a > "real" serial port? Or what else can I try? You need to create a kernel with networksupport, setup "netconsole" you need a second computer to receive the issues. >How can I explore the hint > about the problem only happening with VT-d enabled in BIOS? How can I > explore the hint about the problem not happening if the option > nox2apic is passed to the Kernel? never heard about that until now, obviously there is a bug in several acpi's that can be triggered. If your systems works with nox2apic as bootparameter you should be happy since a workaround is available. Information about it is used can be find here: http://lxr.free-electrons.com/ident?a=microblaze;i=nox2apic re, wh > Thank you, > > Peter > > P.S Yes, it works on Windows. > -- To unsubscribe from this list: send the line "unsubscribe kernel-janitors" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html