http://bugzilla.suse.com/show_bug.cgi?id=1137799 http://bugzilla.suse.com/show_bug.cgi?id=1137799#c6 --- Comment #6 from Joerg Roedel --- (In reply to Takashi Iwai from comment #5)

Thanks. The dmesg shows

[ 0.164138] AMD-Vi: [Firmware Bug]: : IOAPIC[4] not in IVRS table [ 0.164141] AMD-Vi: [Firmware Bug]: : IOAPIC[5] not in IVRS table [ 0.164143] AMD-Vi: [Firmware Bug]: : No southbridge IOAPIC found [ 0.164144] AMD-Vi: Disabling interrupt remapping

Yes, these messages report a BIOS bug in the IVRS table setup, but I doubt that this is relevant for the issue discussed here. The IVRS bug only prevents interrupt remapping from getting enabled, normal IRQ routing should still work.

that indicates a BIOS bug, and that's the possible cause that screws up the interrupts setup after hibernation resume.

Could you try to boot with amd_iommu_dump=1 kernel option and give the kernel boot messages?

Adding Joerg to Cc, as this seems relevant with AMD IOMMU.

I don't think it has to do with the AMD IOMMU, as the parts that would use the buggy BIOS settings are not active. -- You are receiving this mail because: You are on the CC list for the bug.