[Xen-devel] Re: devel/merge.2.6.35-rc3 [WAS: [GIT PULL] pv/pcifront-2.6.32 + pv/pciback-2.6.32 = [INTx/MSI/MSI-X work now]]

[Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx>]

On Sun, Jun 27, 2010 at 07:35:33PM +0200, Sander Eikelenboom wrote:
> Hi Konrad,
> 
> I have tried the 2.6.35-rc3, because i hoped the xhci (usb3) isoc support 
> would be in by now, but it seems nog fully functional yet :(.
> On boot i did get this, don't know if it's something with xen-swiotlb of with 
> the xhci since both are in the trace :-)

Ah, this is good. It actually does look to be a xen-swiotlb bug. Can you send 
me your
.config file please and thank you for testing this out.

FYI, the problem shouldn't affect the running of the system.

> [    1.379534]  [<ffffffff8109ad7b>] ? smp_call_function_many+0x76/0x1be
> [    1.379543]  [<ffffffff81070a5b>] warn_slowpath_common+0x80/0xae
> [    1.379551]  [<ffffffff8105fdf2>] ? do_flush_tlb_all+0x0/0x61
> [    1.379558]  [<ffffffff81070a9e>] warn_slowpath_null+0x15/0x17
> [    1.379566]  [<ffffffff8109ad7b>] smp_call_function_many+0x76/0x1be
> [    1.379573]  [<ffffffff8105fdf2>] ? do_flush_tlb_all+0x0/0x61
> [    1.379580]  [<ffffffff8105fdf2>] ? do_flush_tlb_all+0x0/0x61
> [    1.379587]  [<ffffffff8109aee3>] smp_call_function+0x20/0x24
> [    1.379594]  [<ffffffff81076774>] on_each_cpu+0x18/0x57
> [    1.379601]  [<ffffffff8105fc4b>] flush_tlb_all+0x17/0x19
> [    1.379608]  [<ffffffff8110030e>] __purge_vmap_area_lazy+0x128/0x183
> [    1.379616]  [<ffffffff811024cb>] vm_unmap_aliases+0x162/0x173
> [    1.379624]  [<ffffffff81031d4d>] xen_create_contiguous_region+0x44/0xea
> [    1.379633]  [<ffffffff81284d98>] xen_swiotlb_alloc_coherent+0x6e/0xe2
> [    1.379640]  [<ffffffff81106a23>] dma_pool_alloc+0x191/0x319

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