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Message-ID: <2866134.Da8PQoU0sW@vostro.rjw.lan> Date: Tue, 22 Jul 2014 14:23:03 +0200 From: "Rafael J. Wysocki" <rjw@...ysocki.net> To: Peter Zijlstra <peterz@...radead.org> Cc: ACPI Devel Maling List <linux-acpi@...r.kernel.org>, Linux Kernel Mailing List <linux-kernel@...r.kernel.org>, Linux PM list <linux-pm@...r.kernel.org>, Linux PCI <linux-pci@...r.kernel.org>, Zhang Rui <rui.zhang@...el.com> Subject: Re: [PATCH 0/3] ACPI / PM: Make ACPI-based PCI wakeup work for the "freeze" sleep state On Tuesday, July 22, 2014 10:55:38 AM Peter Zijlstra wrote: > On Tue, Jul 22, 2014 at 03:23:29AM +0200, Rafael J. Wysocki wrote: > > > That turned out to be more challenging than I had thought initially. > > > > The last version I sent was almost OK, but it had some issues (like it could > > walk the PCI hierarchy before resuming any PCI devices during system resume), > > so a new version follows. I did my best to avoid introducing any new problems > > with it, but I obviously might overlook something. > > > > It works for me and doesn't seem to break anything as far as I can say. > > > > [1/3] Make PM workqueue available for CONFIG_PM_RUNTIME unset. > > [2/3] Rework the handling of ACPI device wakeup notifications. > > [3/3] Enable wakeup GPEs while setting up devices for wakeup during system > > suspend too. > > Doesn't break, doesn't 'work' either. This probably means that WoL on that machine is not ACPI-based. > Is there anything I can provide you with to make this easier? lspci output > or anything like that? Yes, /proc/interrupts from the machine in question would help to start with. Also /sys/kernel/debug/wakeup_sources (if /sys/kernel/debug/ is where your debugfs lives) before and after a "freeze" with an attempt to use WoL to wake it up. Rafael -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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