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From: Bjorn Helgaas <bjorn.helgaas@hp.com>
To: Pavel Machek <pavel@suse.cz>, Patrick Mochel <mochel@osdl.org>
Cc: linux-kernel@vger.kernel.org
Subject: swsusp resume doesn't sysdev_resume
Date: Mon, 11 Oct 2004 16:59:16 -0600	[thread overview]
Message-ID: <200410111659.16373.bjorn.helgaas@hp.com> (raw)

Swsusp often fails on -mm kernels because sysdev_resume doesn't
get called in the resume path.  So things like ACPI IRQ links
used by modular drivers don't get restored.

We can work around this by using "pci=routeirq", so all the IRQ
setup gets done at boot-time, but that's an ugly hack, and I
expect that we'll trip over other sysdevs that need to be resumed
anyway.

I don't understand swsusp well enough to fix this.  It's not enough
to just call device_power_up() before device_resume(), because it
relies on sysdev_suspend() having been called before the suspend
image was created.

Any hints?

             reply	other threads:[~2004-10-11 23:02 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2004-10-11 22:59 Bjorn Helgaas [this message]
2004-10-14 13:38 ` Pavel Machek

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