Messages in this thread | | | Date | Mon, 5 Sep 2016 11:59:01 +0200 | From | Joerg Roedel <> | Subject | Re: io_page_fault seen in normal kernel boot log |
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Hi Baoquan
On Mon, Sep 05, 2016 at 01:38:05PM +0800, Baoquan He wrote: > This happened on 4.8.0-rc5 > > [ +0.006771] AMD-Vi: Event logged [IO_PAGE_FAULT device=00:14.4 domain=0x0009 address=0x0000000000001000 flags=0x0000] > [ +0.010593] AMD-Vi: Event logged [IO_PAGE_FAULT device=00:14.4 domain=0x0009 address=0x0000000000001040 flags=0x0000] > [ +0.010596] AMD-Vi: Event logged [IO_PAGE_FAULT device=00:14.4 domain=0x0009 address=0x0000000000001080 flags=0x0000] > [ +0.010597] AMD-Vi: Event logged [IO_PAGE_FAULT device=00:14.4 domain=0x0009 address=0x00000000000010c0 flags=0x0000] > [ +0.010592] AMD-Vi: Event logged [IO_PAGE_FAULT device=00:14.4 domain=0x0009 address=0x0000000000001100 flags=0x0000] > [ +0.010592] AMD-Vi: Event logged [IO_PAGE_FAULT device=00:14.4 domain=0x0009 address=0x0000000000001140 flags=0x0000]
This is probably a radeon driver issue, the address looks like its handed out by the IOMMU driver, so probably a use-after-free bug. I also see those GPU related faults from time to time. The system usually boots fine anyway. Does boot complete on that system?
Regards,
Joerg
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