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Groups > linux.kernel > #1477202
| From | Joerg Roedel <joro@8bytes.org> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | Re: io_page_fault seen in normal kernel boot log |
| Date | 2016-09-06 11:20 +0200 |
| Message-ID | <sekHT-8tW-17@gated-at.bofh.it> (permalink) |
| References | <sdUNs-7TE-7@gated-at.bofh.it> <sdYR6-209-59@gated-at.bofh.it> <sdZap-2o0-5@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
On Mon, Sep 05, 2016 at 06:11:58PM +0800, Baoquan He wrote: > On 09/05/16 at 11:59am, Joerg Roedel 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? > > Yes, except for this message, system is not impacted. Hmm, on the other hand, the AMD-Vi driver in 4.8 uses the generic IOVA allocator, so the addresses it hands out should be closer to 4GB. Anyway, this is probably a bug/problem in the GPU driver. Joerg
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Re: io_page_fault seen in normal kernel boot log Joerg Roedel <joro@8bytes.org> - 2016-09-05 12:00 +0200
Re: io_page_fault seen in normal kernel boot log Baoquan He <bhe@redhat.com> - 2016-09-05 12:20 +0200
Re: io_page_fault seen in normal kernel boot log Joerg Roedel <joro@8bytes.org> - 2016-09-06 11:20 +0200
Re: io_page_fault seen in normal kernel boot log Baoquan He <bhe@redhat.com> - 2016-09-09 10:10 +0200
Re: io_page_fault seen in normal kernel boot log Joerg Roedel <joro@8bytes.org> - 2016-09-09 10:40 +0200
Re: io_page_fault seen in normal kernel boot log Baoquan He <bhe@redhat.com> - 2016-09-09 10:50 +0200
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