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SubjectRe: iommu_alloc failure and panic
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On Sat, 2006-01-28 at 12:34 +1300, Olof Johansson wrote:
> On Fri, Jan 27, 2006 at 02:39:50PM -0800, Mark Haverkamp wrote:
>
> > I would have thought that the npages would be 1 now.
>
> No, npages is the size of the allocation coming from the driver, that
> won't chance. The table blocksize just says how wide the cacheline size
> is, i.e. how far it should advance between allocations.
>
> This is a patch that should probably have been added a while ago, to
> give a bit more info. Can you apply it and give it a go?
>
>
> Thanks,
>
> Olof
>


Here are the last few lines of the log before it crashed.


Jan 30 07:29:14 linux kernel: table size 10000 used f752
Jan 30 07:29:21 linux kernel: printk: 650 messages suppressed.
Jan 30 07:29:21 linux kernel: iommu_alloc_sg failed, tbl c0000001e794dd80 vaddr c000000059424000 npages 10
Jan 30 07:29:21 linux kernel: table size 10000 used f2c9
Jan 30 07:29:25 linux kernel: printk: 590 messages suppressed.
Jan 30 07:29:25 linux kernel: iommu_alloc_sg failed, tbl c0000001e794dd80 vaddr c00000007c5f9000 npages e
Jan 30 07:29:25 linux kernel: table size 10000 used f6ae
Jan 30 07:29:29 linux kernel: printk: 705 messages suppressed.
Jan 30 07:29:29 linux kernel: iommu_alloc_sg failed, tbl c0000001e794dd80 vaddr c0000000d3c9f000 npages e
Jan 30 07:29:29 linux kernel: table size 10000 used f530
Jan 30 07:29:35 linux kernel: printk: 357 messages suppressed.
Jan 30 07:29:35 linux kernel: iommu_alloc_sg failed, tbl c0000001e794dd80 vaddr c00000010156b000 npages 10
Jan 30 07:29:35 linux kernel: table size 10000 used e69e
Jan 30 07:29:39 linux kernel: printk: 481 messages suppressed.
Jan 30 07:29:39 linux kernel: iommu_alloc_sg failed, tbl c0000001e794dd80 vaddr c00000007616b000 npages 10
Jan 30 07:29:39 linux kernel: table size 10000 used f8e2
Jan 30 07:30:02 linux kernel: printk: 366 messages suppressed.
Jan 30 07:30:02 linux kernel: iommu_alloc_sg failed, tbl c0000001e794dd80 vaddr c0000000b0f80000 npages 10
Jan 30 07:30:02 linux kernel: table size 10000 used fbf2
Jan 30 07:30:02 linux kernel: iommu_alloc_sg failed, tbl c0000001e794dd80 vaddr c0000000b43d3000 npages 10
Jan 30 07:30:02 linux kernel: table size 10000 used fc00
Jan 30 07:30:02 linux kernel: iommu_alloc_sg failed, tbl c0000001e794dd80 vaddr c0000000ac267000 npages 10
Jan 30 07:30:02 linux kernel: table size 10000 used fbf1
Jan 30 07:30:02 linux kernel: iommu_alloc_sg failed, tbl c0000001e794dd80 vaddr c0000000b7380000 npages 10
Jan 30 07:30:02 linux kernel: table size 10000 used fc66
Jan 30 07:30:04 linux kernel: printk: 417 messages suppressed.
Jan 30 07:30:04 linux kernel: iommu_alloc_sg failed, tbl c0000001e794dd80 vaddr c0000000d94be000 npages 10
Jan 30 07:30:04 linux kernel: table size 10000 used ffd2
Jan 30 07:30:09 linux kernel: printk: 957 messages suppressed.
Jan 30 07:30:09 linux kernel: iommu_alloc_sg failed, tbl c0000001e794dd80 vaddr c0000000e59c0000 npages e
Jan 30 07:30:09 linux kernel: table size 10000 used fd18
Jan 30 07:30:14 linux kernel: printk: 990 messages suppressed.
Jan 30 07:30:14 linux kernel: iommu_alloc_sg failed, tbl c0000001e794dd80 vaddr c0000001019c3000 npages 10
Jan 30 07:30:14 linux kernel: table size 10000 used fa2b
Jan 30 07:30:19 linux kernel: printk: 881 messages suppressed.
Jan 30 07:30:19 linux kernel: iommu_alloc_sg failed, tbl c0000001e794dd80 vaddr c000000066901000 npages 10
Jan 30 07:30:19 linux kernel: table size 10000 used ee58
Jan 30 07:30:24 linux kernel: printk: 1094 messages suppressed.
Jan 30 07:30:24 linux kernel: iommu_alloc_sg failed, tbl c0000001e794dd80 vaddr c00000011d110000 npages 10
Jan 30 07:30:24 linux kernel: table size 10000 used f74a
Jan 30 07:30:29 linux kernel: printk: 890 messages suppressed.
Jan 30 07:30:29 linux kernel: iommu_alloc_sg failed, tbl c0000001e794dd80 vaddr c00000007db1c000 npages 10
Jan 30 07:30:29 linux kernel: table size 10000 used f6e3
Jan 30 07:30:34 linux kernel: printk: 1020 messages suppressed.
Jan 30 07:30:34 linux kernel: iommu_alloc_sg failed, tbl c0000001e794dd80 vaddr c00000004759f000 npages 10
Jan 30 07:30:34 linux kernel: table size 10000 used f972
Jan 30 07:30:39 linux kernel: printk: 1209 messages suppressed.
Jan 30 07:30:39 linux kernel: iommu_alloc_sg failed, tbl c0000001e794dd80 vaddr c00000003a39b000 npages 10
Jan 30 07:30:39 linux kernel: table size 10000 used e358
Jan 30 07:30:44 linux kernel: printk: 608 messages suppressed.
Jan 30 07:30:44 linux kernel: iommu_alloc_sg failed, tbl c0000001e794dd80 vaddr c00000000b086000 npages 10
Jan 30 07:30:44 linux kernel: table size 10000 used ff52

--
Mark Haverkamp <markh@osdl.org>

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