On 07/24/2015 at 06:15 PM, Bjorn Helgaas wrote: > [+cc Tejun, linux-ide] > > On Thu, Jul 23, 2015 at 11:22 PM, Andreas Hartmann > <andihartmann@xxxxxxxxxx> wrote: >> On Tue, Jul 21, 2015 at 06:35PM +0200, Joerg Roedel wrote: >>> On Tue, Jul 21, 2015 at 06:20:23PM +0200, Andreas Hartmann wrote: >>>> [ 48.193901] <6>[fglrx] Firegl kernel thread PID: 1840 >>>> [ 48.193985] <6>[fglrx] Firegl kernel thread PID: 1841 >>>> [ 48.194063] <6>[fglrx] Firegl kernel thread PID: 1842 >>>> [ 48.194172] <6>[fglrx] IRQ 28 Enabled >>>> [ 48.261580] <6>[fglrx] Reserved FB block: Shared offset:0, size:1000000 >>>> [ 48.261586] <6>[fglrx] Reserved FB block: Unshared offset:f7b4000, size:4000 >>>> [ 48.261587] <6>[fglrx] Reserved FB block: Unshared offset:f7b8000, size:548000 >>>> [ 48.261588] <6>[fglrx] Reserved FB block: Unshared offset:3fff3000, size:d000 >>> >>> From a first glance it doesn't look like an IOMMU driver issue, because >>> the addresses where the faults happen are not from the AMD IOMMU driver. >>> >>> And you have proprietary closed-source drivers loaded, can you reproduce >>> the issue without fglrx? >> >> Yes. I attached this one. >> >> Meanwhile I tested with 4.0.9, too. I wasn't able to reproduce the >> problem with this kernel even after lots of reboots (the problem w/ 4.1 >> usually comes up during boot process (but not only - it can be seen >> after boot process, too)). >> >> The problem always is, that there are errors w/ one of the sata discs >> and at the same time, IO_PAGE_FAULT errors are rising as described before: >> >> [ 152.533708] ata3.00: failed command: READ FPDMA QUEUED >> [ 152.538102] ata3.00: failed command: READ FPDMA QUEUED >> [ 152.539862] ata3.00: failed command: READ FPDMA QUEUED >> [ 152.541778] ata3.00: failed command: WRITE FPDMA QUEUED >> [ 152.543861] ata3.00: failed command: WRITE FPDMA QUEUED >> >> [ 5818.068050] ata2.00: failed command: WRITE FPDMA QUEUED >> [ 5818.068059] ata2.00: failed command: WRITE FPDMA QUEUED >> >> I compared dmesg from 4.1 w/ 4.0 and I realized the following *missing* >> entries in 4.1: >> >> [ 0.000000] ACPI: LAPIC (acpi_id[0x00] lapic_id[0x00] enabled) >> [ 0.000000] ACPI: LAPIC (acpi_id[0x01] lapic_id[0x01] enabled) >> [ 0.000000] ACPI: LAPIC (acpi_id[0x02] lapic_id[0x02] enabled) >> [ 0.000000] ACPI: LAPIC (acpi_id[0x03] lapic_id[0x03] enabled) >> [ 0.000000] ACPI: LAPIC (acpi_id[0x04] lapic_id[0x04] enabled) >> [ 0.000000] ACPI: LAPIC (acpi_id[0x05] lapic_id[0x05] enabled) >> [ 0.000000] ACPI: LAPIC (acpi_id[0x06] lapic_id[0x06] enabled) >> [ 0.000000] ACPI: LAPIC (acpi_id[0x07] lapic_id[0x07] enabled) >> >> >> What does this mean? Is there missing some part of the acpi initialization? >> >> >> Thanks for any hint as Linux 4.1 is completely unusable here with these >> errors. > > This looks more like an AHCI problem than an IOMMU or PCI problem. > Seems like the device has the wrong idea about where its DMA buffers > are. Maybe something scribbled on its command list? During further tests I detected, that the problem already occurs in Linux 4.0. I couldn't see it in 3.19.8 until now. I tried hard to bisect it. I got stuck 2 times of 3 here (the third round, I got stuck later on - unfortunately, sometimes it is working :-( ): https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=be5e6616dd74e17fdd8e16ca015cfef94d49b467 Does this help? > From your attachments: > > # lspci -vvs 00:11.0 > 00:11.0 SATA controller: Advanced Micro Devices, Inc. [AMD/ATI] > SB7x0/SB8x0/SB9x0 SATA Controller [AHCI mode] (rev 40) (prog-if 01 [AHCI > 1.0]) > > pci 0000:00:11.0: [1002:4391] type 00 class 0x010601 > ahci 0000:00:11.0: version 3.0 > ahci 0000:00:11.0: AHCI 0001.0200 32 slots 6 ports 6 Gbps 0x3f impl SATA mode > ahci 0000:00:11.0: flags: 64bit ncq sntf ilck pm led clo pmp pio slum part > AMD-Vi: Event logged [IO_PAGE_FAULT device=00:11.0 domain=0x0008 > address=0x40eba32100618000 flags=0x0010] > AMD-Vi: Event logged [IO_PAGE_FAULT device=00:11.0 domain=0x0008 > address=0x40eba32100618040 flags=0x0010] > AMD-Vi: Event logged [IO_PAGE_FAULT device=00:11.0 domain=0x0008 > address=0x0000000000000000 flags=0x0000] > AMD-Vi: Event logged [IO_PAGE_FAULT device=00:11.0 domain=0x0008 > address=0x00000000000000c0 flags=0x0000] > AMD-Vi: Event logged [IO_PAGE_FAULT device=00:11.0 domain=0x0008 > address=0x0000000000000040 flags=0x0000] > AMD-Vi: Event logged [IO_PAGE_FAULT device=00:11.0 domain=0x0008 > address=0x00000000000001c0 flags=0x0000] Regards, Andreas -- 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
