[+cc linux-pci, Rafael, Sarah, Alan] On Sun, Apr 21, 2013 at 11:41 AM, <bugzilla-daemon@xxxxxxxxxxxxxxxxxxx> wrote: > https://bugzilla.kernel.org/show_bug.cgi?id=56931 > > Summary: "E/xHCI: BIOS handoff failed" breaks poweroff > Kernel Version: 3.8.8 > Regression: No > > --> (https://bugzilla.kernel.org/attachment.cgi?id=99541) > full dmesg > > Usually I see "EHCI: BIOS handoff failed" and "xHCI: BIOS handoff failed" in > dmesg, and laptop hangs after "Power down" message. However, if I was lucky > enough and "handoff failed" messages didn't appear, laptop suspends and turns > off without any problems. Thanks for the problem report. If I understand correctly, when you boot this HP Pavilion dv6, you normally see this in the dmesg: pci 0000:00:1a.0: EHCI: BIOS handoff failed (BIOS bug?) 01010001 pci 0000:00:1d.0: EHCI: BIOS handoff failed (BIOS bug?) 01010001 pci 0000:19:00.0: xHCI BIOS handoff failed (BIOS bug ?) 00010401 and when you attempt a power-off, it hangs after the "Power down" message and never actually turns the power off. But sometimes, you don't see those "handoff failed" messages, and then a power-off works as expected? I'm a little confused by the mention of "suspend." My guess is that this is actually a USB issue, not a PCI core problem. > I remember that it didn't happen with old kernels (3.2 maybe). With 3.8 it > happens almost always. Sounds like this is actually a regression, but we don't have a solid idea of what kernel worked. > On the same laptop, Windows 7 runs fine. However, looks like there is a long > pause during boot. > > -- > Configure bugmail: https://bugzilla.kernel.org/userprefs.cgi?tab=email > ------- You are receiving this mail because: ------- > You are watching the assignee of the bug. -- To unsubscribe from this list: send the line "unsubscribe linux-pci" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
