On Tue, Jun 22, 2021 at 12:02 AM Bjorn Helgaas <helgaas@xxxxxxxxxx> wrote: > > FYI. Looks like 4514d991d992 ("PCI: PM: Do not read power state in > pci_enable_device_flags()") appeared in v5.13-rc1, so it would be nice > to fix before v5.13. I think let's revert it for now and revisit. Do you want me to push the revert? > https://bugzilla.kernel.org/show_bug.cgi?id=213481 > > Initial report: > > On the 4.19 kernel, this works perfect. It also works perfectly in > Windows. If I reboot into 4.19, there is no problem with networking, > however in 5.10, there is ZERO network connectivity. The link NEVER > comes up. You can't assign an IP address to the interface. > > > From comment #2: > > If I revert commit 4514d991d99211f225d83b7e640285f29f0755d0 ( > https://github.com/torvalds/linux/commit/4514d991d99211f225d83b7e640285f29f0755d0) > from the 5.10.36 kernel, I do NOT have this hardware failure > message. This commit relates to PCI power state. > > It would appear something about this change that the e1000e driver > is not handling properly on this system, causing the card to not > work. > > As mentioned this is in current kernel versions (5.13, 5.11, and > 5.10.36+). Given that this is a regression, a breaking change for > the usability of these cards, and we know exactly what causes it for > a hopefully easy fix, I've upped the severity.