Re: [Bugme-new] [Bug 13001] New: PCI-DMA: Out of IOMMU space

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Ok, what's done.
I build kernel with CONFIG_IOMMU_LEAK and CONFIG_IOMMU_DEBUG,
forcedeth, all usb and sata stuff as modules, reboot with default
apperture, 64mb, rmmod ehci_usb, forcedeth. From sata_nv hdd /dev/sdb1
i can read 80gb data without problems, dmesg flooded with "dma_map_sg
overflow" messages. When i try write data to /dev/sdb1 computer hung
completely after one or two seconds. No oopses, clear logs, just hung
and i hardreset it.


2009/4/7 Данила Жукоцкий <optimusgd@xxxxxxxxx>:
> My bad, just a typo, i use 2.6.29.1 of course. My boot device 3ware
> raid, so i try isolate bug now as you say.
>
> 2009/4/7 FUJITA Tomonori <fujita.tomonori@xxxxxxxxxxxxx>:
>> On Tue, 7 Apr 2009 17:38:30 +0900
>> FUJITA Tomonori <fujita.tomonori@xxxxxxxxxxxxx> wrote:
>>
>>> > I can't turn on CONFIG_IOMMU_LEAK and CONFIG_IOMMU_DEBUG because
>>> > 2.6.26.1 not have such options in .config. Maybe git kernel have this
>>> > options?
>>>
>>> 2.6.26.1 has these options. Probably you don't enable
>>> DEBUG_KERNEL. But the feature is not much useful, as I said.
>>
>> Wait, you use 2.6.29, right?
>>
>
>
>
> --
> С уважением Данила Жукоцкий, системный администратор ЗАО "Роснефтегазмаш"
>
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