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From: Kishon Vijay Abraham I <kishon@ti.com>
To: Christoph Hellwig <hch@lst.de>
Cc: "linux-pci@vger.kernel.org" <linux-pci@vger.kernel.org>
Subject: Re: pci-usb/pci-sata broken with LPAE config after "reduce use of block bounce buffers"
Date: Wed, 5 Feb 2020 15:03:13 +0530	[thread overview]
Message-ID: <9be3bed4-3804-1b3e-a91a-ed52407524ce@ti.com> (raw)
In-Reply-To: <20200205091959.GA24413@lst.de>

Christoph,

On 05/02/20 2:49 PM, Christoph Hellwig wrote:
> On Wed, Feb 05, 2020 at 02:48:17PM +0530, Kishon Vijay Abraham I wrote:
>> Christoph,
>>
>> On 05/02/20 2:18 PM, Christoph Hellwig wrote:
>>> On Wed, Feb 05, 2020 at 02:02:51PM +0530, Kishon Vijay Abraham I wrote:
>>>>> you try that branch?
>>>>
>>>> I see data mismatch with that branch.
>>>
>>> But previously it didn't work at all? If you disable LPAE and thus
>>> limit the available RAM, does it work without any fixes?
>>
>> Previously there was a warn dump and it gets stuck.
>>
>> With the branch you shared (with LPAE enabled), there was data mismatch.
>> With the branch you shared (with LPAE disabled), things work fine
>> (https://pastebin.ubuntu.com/p/kPNdsJd7ds/)
> 
> Does the miscompare still happen if you revert:
> 
>  "dma-direct: improve DMA mask overflow reporting"
> 
> and
> 
>  "dma-direct: improve swiotlb error reporting"
> 
> ?

Yes, I see the mismatch after reverting the above patches.

Thanks
Kishon

  reply	other threads:[~2020-02-05  9:29 UTC|newest]

Thread overview: 25+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-11-15 10:59 pci-usb/pci-sata broken with LPAE config after "reduce use of block bounce buffers" Kishon Vijay Abraham I
2019-11-15 13:06 ` Christoph Hellwig
2019-11-15 14:18   ` Kishon Vijay Abraham I
2019-11-16 16:35     ` Christoph Hellwig
2019-11-18 17:21       ` Robin Murphy
2019-11-25  5:43         ` Kishon Vijay Abraham I
2020-01-27 13:10           ` Kishon Vijay Abraham I
2020-01-27 13:22             ` Robin Murphy
2020-01-29  6:24               ` Kishon Vijay Abraham I
2020-01-30  7:58 ` Christoph Hellwig
2020-01-30  8:09   ` Kishon Vijay Abraham I
2020-01-30 16:42     ` Christoph Hellwig
2020-01-31 11:44       ` Kishon Vijay Abraham I
2020-02-03 14:21         ` Christoph Hellwig
2020-02-05  5:15           ` Kishon Vijay Abraham I
2020-02-05  7:47             ` Christoph Hellwig
2020-02-05  8:32               ` Kishon Vijay Abraham I
2020-02-05  8:48                 ` Christoph Hellwig
2020-02-05  9:18                   ` Kishon Vijay Abraham I
2020-02-05  9:19                     ` Christoph Hellwig
2020-02-05  9:33                       ` Kishon Vijay Abraham I [this message]
2020-02-05 16:05                         ` Christoph Hellwig
2020-02-17 14:23                           ` Christoph Hellwig
2020-02-18 12:15                             ` Kishon Vijay Abraham I
2020-04-02 12:01                               ` Kishon Vijay Abraham I

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