Monday, February 9, 2015, 5:09:44 PM, you wrote: > On 09.02.2015 13:29, Stefan Bader wrote: >> On 09.02.2015 13:12, Jiang Liu wrote: >>> On 2015/2/9 17:47, Stefan Bader wrote: >>>> On 05.02.2015 21:07, Sander Eikelenboom wrote: >>>>> >>>>> Tuesday, January 20, 2015, 3:21:04 AM, you wrote: >>>>> >>>>>> Hi Thomas, >>>>>> This patch set includes three hotfixes related Xen IRQ for v3.19. >>>>>> Sorry for the long delay to get these two regressions fixed, it really >>>>>> cost me some time to read and understand Xen IRQ code. >>>>> >>>>>> Patch 1 fixes the failure to register ACPI SCI interrupt on Xen >>>>>> domain0 by reworking acpi_gsi_to_irq(). I will backport it to v3.18 >>>>>> too once it reaches the mainstream kernel. >>>>> >>>>>> Patch 2 fixes the regression in Xen PCI device passthrough(pciback). >>>>>> It's a temporary solution, I will send the formal fix for v3.20 and >>>>>> it has passed tests too. >>>>> >>>>>> Patch 3 fixes an issue found when reading code. There's no real bug >>>>>> reports related to this issue yet. >>>>> >>>>>> Great thanks to Konrad and Sander for testing fixes for these regressions. >>>>> >>>>>> Regards, >>>>>> Gerry >>>>> >>>>> Hi Gerry, >>>>> >>>>> Since these patches now are: tested, reviewed and have landed into mainline, >>>>> could you also provide the backports for 3.17 and 3.18 where required ? >>>> >>>> This would be my attempt of backporting those to 3.18 (I have not tried whether >>>> they would apply to 3.17 as well). Those seem to work when test-booting and >>>> Sander said he will give them a try as well. But better check yourself I did not >>>> mess anything up while backporting. One of the three patches seemed not to be >>>> required at all. >>> I'm backporting them too, but now I will give up my patches:) >>> >>> The first one is a must, which should be applied to 3.17 and 3.18. >>> The second one doesn't apply to 3.17 or 3.18. >>> The third may be applied to v3.17 and v3.18, but it shouldn't be applied >>> according to the stable-kernel doc because no user reports such a bug yet. >> >> Hm, ok. So maybe I should retry with only patch#1 and verify that alone gets >> around the acpi irq and the usb problems, too. Though interestingly from the >> history, the acpi irq I saw in 3.17 while the usb devices started to fail with >> 3.18. I will let you know in a bit. Just want to finish another bisect first. > So it looks like patch #1 indeed does fix both the acpi irq and my usb devices. > Sander, do you want to verify that variant, too? Will test 3.18 with only patch 1 after dinner. > The only odd thing left in a 3.18 with the fix (regardless of using patch #1 > only or patches #1 and #3) is that the ahci driver shows up with its pci bus > number in /proc/interrupts. But that does not seem to have any relevant downside > (cannot try 3.19 on that box right now for other reasons). > -Stefan > ... > # 57: 12441 0 0 0 xen-pirq-msi 0000:00:1f.2 > # (used to be ahci) Hmm funky .. now that you mention it .. i'm seeing that as well but only on an intel machine. intel .. on 3.19: 52: 13529 0 0 0 xen-pirq-msi 0000:00:1f.2 on my amd machine on 3.19 it seems ok though: 114: 412535 0 0 0 0 0 xen-pirq-msi ahci0 115: 0 0 0 0 0 0 xen-pirq-msi ahci1 116: 16717 0 0 0 0 0 xen-pirq-msi ahci2 117: 0 0 0 0 0 0 xen-pirq-msi ahci3 118: 0 0 0 0 0 0 xen-pirq-msi ahci4 119: 0 0 0 0 0 0 xen-pirq-msi ahci5 -- Sander >> >> -Stefan >> >>> Regards >>> Gerry >>>> >>>> -Stefan >>>> >>>>> >>>>> The number of people running into these (subtle) issues with these stable >>>>> kernels seems to be steadily increasing. >>>>> >>>>> -- >>>>> Sander >>>>> >>>>>> Jiang Liu (3): >>>>>> xen/pci: Kill function xen_setup_acpi_sci() >>>>>> xen/irq, ACPI: Fix regression in xen PCI passthrough caused by >>>>>> cffe0a2b5a34 >>>>>> xen/irq: Override ACPI IRQ management callback __acpi_unregister_gsi >>>>> >>>>>> arch/x86/include/asm/acpi.h | 1 + >>>>>> arch/x86/kernel/acpi/boot.c | 26 +++++++++++------------ >>>>>> arch/x86/pci/xen.c | 49 ++----------------------------------------- >>>>>> drivers/acpi/pci_irq.c | 1 - >>>>>> 4 files changed, 16 insertions(+), 61 deletions(-) >>>>> >>>>> >>>> >> >> -- 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
