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Thread: Out of SW-IOMMU space error

  1. #1
    Join Date
    Aug 2011
    Beans
    3

    Out of SW-IOMMU space error

    Hello. I am experiencing a problem that leads to an unresponsive system. Relevant log excerpts follow:

    syslog:
    Code:
    Jun  8 12:02:48 ken-MS-7681 kernel: [14534.394347] DMA: Out of SW-IOMMU space for 66 bytes at device 0000:08:00.0
    Jun  8 12:02:48 ken-MS-7681 kernel: [14534.394431] DMA: Out of SW-IOMMU space for 66 bytes at device 0000:08:00.0
    Jun  8 12:02:48 ken-MS-7681 kernel: [14534.394510] DMA: Out of SW-IOMMU space for 66 bytes at device 0000:08:00.0
    Jun  8 12:02:48 ken-MS-7681 kernel: [14534.394588] DMA: Out of SW-IOMMU space for 74 bytes at device 0000:08:00.0
    Jun  8 12:02:48 ken-MS-7681 kernel: [14534.394666] DMA: Out of SW-IOMMU space for 66 bytes at device 0000:08:00.0
    Jun  8 12:02:48 ken-MS-7681 kernel: [14534.394745] DMA: Out of SW-IOMMU space for 74 bytes at device 0000:08:00.0
    Jun  8 12:02:48 ken-MS-7681 kernel: [14534.394823] DMA: Out of SW-IOMMU space for 1514 bytes at device 0000:08:00.0
    Jun  8 12:02:48 ken-MS-7681 kernel: [14534.394906] DMA: Out of SW-IOMMU space for 572 bytes at device 0000:08:00.0
    Jun  8 12:02:48 ken-MS-7681 kernel: [14534.394993] DMA: Out of SW-IOMMU space for 66 bytes at device 0000:08:00.0
    Jun  8 12:02:48 ken-MS-7681 kernel: [14534.395076] DMA: Out of SW-IOMMU space for 66 bytes at device 0000:08:00.0
    Jun  8 12:02:48 ken-MS-7681 kernel: [14534.395160] DMA: Out of SW-IOMMU space for 1523 bytes at device 0000:08:00.0
    Jun  8 12:02:58 ken-MS-7681 kernel: [14544.143933] DMA: Out of SW-IOMMU space for 1876 bytes at device 0000:06:00.0
    Jun  8 12:02:58 ken-MS-7681 kernel: [14544.144013] DMA: Out of SW-IOMMU space for 1876 bytes at device 0000:06:00.0
    Jun  8 12:02:58 ken-MS-7681 kernel: [14544.144091] DMA: Out of SW-IOMMU space for 1876 bytes at device 0000:06:00.0
    kern.log:
    Code:
    Jun  7 23:18:30 ken-MS-7681 kernel: [ 9014.443093] Buffer I/O error on device sda1, logical block 2610687
    Jun  7 23:18:30 ken-MS-7681 kernel: [ 9014.443095] EXT4-fs warning (device sda1): ext4_end_bio:317: I/O error writing to inode 38011504 (offset 39321600 size 524288 starting block 2610944)
    Jun  7 23:18:30 ken-MS-7681 kernel: [ 9014.443098] ata1: EH complete
    Jun  7 23:18:30 ken-MS-7681 kernel: [ 9014.443216] DMA: Out of SW-IOMMU space for 65536 bytes at device 0000:00:1f.2
    Jun  7 23:18:30 ken-MS-7681 kernel: [ 9014.443268] ata1.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0
    Jun  7 23:18:30 ken-MS-7681 kernel: [ 9014.443270] ata1.00: failed command: WRITE DMA EXT
    Jun  7 23:18:30 ken-MS-7681 kernel: [ 9014.443272] ata1.00: cmd 35/00:00:00:b8:3e/00:04:01:00:00/e0 tag 0 dma 524288 out
    Jun  7 23:18:30 ken-MS-7681 kernel: [ 9014.443272]          res 50/00:00:af:6d:70/00:00:74:00:00/e0 Emask 0x40 (internal error)
    Jun  7 23:18:30 ken-MS-7681 kernel: [ 9014.443274] ata1.00: status: { DRDY }
    Jun  7 23:18:30 ken-MS-7681 kernel: [ 9014.458921] ata1.00: configured for UDMA/133
    Jun  7 23:18:30 ken-MS-7681 kernel: [ 9014.458934] ata1: EH complete
    Jun  7 23:18:30 ken-MS-7681 kernel: [ 9014.459108] DMA: Out of SW-IOMMU space for 65536 bytes at device 0000:00:1f.2
    lspci -v
    Code:
    00:1f.2 SATA controller: Intel Corporation 6 Series/C200 Series Chipset Family SATA AHCI Controller (rev 04) (prog-if 01 [AHCI 1.0])
        Subsystem: Micro-Star International Co., Ltd. Device 7681
        Flags: bus master, 66MHz, medium devsel, latency 0, IRQ 57
        I/O ports at f070 [size=8]
        I/O ports at f060 [size=4]
        I/O ports at f050 [size=8]
        I/O ports at f040 [size=4]
        I/O ports at f020 [size=32]
        Memory at fe705000 (32-bit, non-prefetchable) [size=2K]
        Capabilities: [80] MSI: Enable+ Count=1/1 Maskable- 64bit-
        Capabilities: [70] Power Management version 3
        Capabilities: [a8] SATA HBA v1.0
        Capabilities: [b0] PCI Advanced Features
        Kernel driver in use: ahci
    06:00.0 Network controller: Broadcom Corporation BCM4321 802.11b/g/n (rev 01)
        Subsystem: Netgear WN311B RangeMax Next 270 Mbps Wireless PCI Adapter
        Flags: bus master, fast devsel, latency 32, IRQ 16
        Memory at fe300000 (32-bit, non-prefetchable) [size=16K]
        Kernel driver in use: wl
    08:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168 PCI Express Gigabit Ethernet controller (rev 06)
        Subsystem: Micro-Star International Co., Ltd. Device 7681
        Flags: bus master, fast devsel, latency 0, IRQ 58
        I/O ports at b000 [size=256]
        Memory at d0004000 (64-bit, prefetchable) [size=4K]
        Memory at d0000000 (64-bit, prefetchable) [size=16K]
        Capabilities: [40] Power Management version 3
        Capabilities: [50] MSI: Enable+ Count=1/1 Maskable- 64bit+
        Capabilities: [70] Express Endpoint, MSI 01
        Capabilities: [b0] MSI-X: Enable- Count=4 Masked-
        Capabilities: [d0] Vital Product Data
        Capabilities: [100] Advanced Error Reporting
        Capabilities: [140] Virtual Channel
        Capabilities: [160] Device Serial Number 00-00-00-00-68-4c-e0-00
        Kernel driver in use: r8168
    uname -a
    Code:
    Linux ken-MS-7681 3.8.0-23-generic #34-Ubuntu SMP Wed May 29 20:22:58 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux




    The wireless card is used sporadically, while the RTL8111/8168 is always on. I've not noticed any strange noises or other issues from the hard drive. I recently installed 4 8GB sticks of ram, which I've run for ~6 hours in memtest86 with no errors. As a note, this issue was happening before the new ram was installed. I've noticed that I have to restart networking periodically up until about the 4 hour mark after a reset, at this point the hard drive becomes read only and the machine nearly always becomes unresponsive after about 10 minutes.

    Any help or advice would be greatly appreciated.
    Last edited by kenhuman; June 10th, 2013 at 02:23 AM.

  2. #2
    Join Date
    Jul 2011
    Beans
    3,037
    Distro
    Ubuntu 12.04 Precise Pangolin

  3. #3
    Join Date
    Aug 2011
    Beans
    3

    Re: Out of SW-IOMMU space error

    Upgrading the kernel to 3.9.0 seems to have fixed it. Thank you.

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