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. -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(-) >>> >>> >>
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