From: Christoph Hellwig <hch@lst.de>
To: Kishon Vijay Abraham I <kishon@ti.com>
Cc: Christoph Hellwig <hch@lst.de>,
"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 08:47:19 +0100 [thread overview]
Message-ID: <20200205074719.GA22701@lst.de> (raw)
In-Reply-To: <a5eb4f73-418a-6780-354f-175d08395e71@ti.com>
On Wed, Feb 05, 2020 at 10:45:24AM +0530, Kishon Vijay Abraham I wrote:
> > Ok, this mostly like means we allocate a swiotlb buffer that isn't
> > actually addressable. To verify that can you post the output with the
> > first attached patch? If it shows the overflow message added there,
> > please try if the second patch fixes it.
>
> I'm seeing some sort of busy loop after applying your 1st patch. I sent
> a SysRq to see where it is stuck
And that shows up just with the patch? Really strange as it doesn't
change any blockig points. What also is strange is that I don't see
any of the warnings that should be there. FYI, the slightly updated
version of the patch that went through my testing it here:
git://git.infradead.org/users/hch/misc.git swiotlb-debug
Gitweb:
http://git.infradead.org/users/hch/misc.git/shortlog/refs/heads/swiotlb-debug
this also includes what was the second patch in the previous mail. Can
you try that branch?
next prev parent reply other threads:[~2020-02-05 7:47 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 [this message]
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
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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