Messages in this thread | | | From | Jian-Hong Pan <> | Date | Wed, 12 Sep 2018 12:56:08 +0800 | Subject | Re: Regression caused by commit 7bb05b85bc2d ("r8169: don't use MSI-X on RTL8106e") |
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2018-09-12 11:42 GMT+08:00 Kai-Heng Feng <kai.heng.feng@canonical.com>: > Hi Jian-Hong, > > There's a Dell machine with RTL8106e stops to work after S3 since the commit > introduced. > So I am wondering if it's possible to revert the commit and use > DMI/subsystem id based quirk table? > > It's because of commit bc976233a872 ("genirq/msi, x86/vector: Prevent > reservation mode for non maskable MSI") cleared the reservation mode, and I > can see this after S3: > > [ 94.872838] do_IRQ: 3.33 No irq handler for vector > > If the device uses MSI-X instead of MSI, the issue doesn't happen because of > reservation mode.
Interesting! Opposite symptom! Could you help try the patch https://marc.info/?l=linux-pci&m=153629858601668&w=4 with and without reverting the commit?
If the patch does not work, another suggestion: You can try falling back to only PCI_IRQ_LEGACY.
Regards, Jian-Hong Pan
> > Hi Thomas, > > Is it something should be handled by x86 BIOS? Because I don't see this > issue when I use Suspend-to-Idle, which doesn't use BIOS to do suspend. > > Kai-Heng >
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