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From: Sudip Mukherjee <sudipm.mukherjee@gmail.com>
To: Mathias Nyman <mathias.nyman@linux.intel.com>
Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
	Mathias Nyman <mathias.nyman@intel.com>,
	linux-usb@vger.kernel.org, lukaszx.szulc@intel.com,
	Christoph Hellwig <hch@lst.de>,
	Marek Szyprowski <m.szyprowski@samsung.com>,
	iommu@lists.linux-foundation.org
Subject: usb HC busted?
Date: Fri, 8 Jun 2018 10:07:52 +0100	[thread overview]
Message-ID: <20180608090712.3s52blbquphfmme6@debian> (raw)

Hi All,

On Thu, Jun 07, 2018 at 10:40:03AM +0300, Mathias Nyman wrote:
> On 06.06.2018 19:45, Sudip Mukherjee wrote:
> > Hi Andy,
> > 
> > And we meet again. :)
> > 
> > On Wed, Jun 06, 2018 at 06:36:35PM +0300, Andy Shevchenko wrote:
> > > On Wed, 2018-06-06 at 17:12 +0300, Mathias Nyman wrote:
> > > > On 04.06.2018 18:28, Sudip Mukherjee wrote:
> > > > > On Thu, May 24, 2018 at 04:35:34PM +0300, Mathias Nyman wrote:
> > > > > > 
> > > 
> > > > Odd and unlikely, but to me this looks like some issue in allocating
> > > > dma memory
> > > > from pool using dma_pool_zalloc()
> > > > 
> > > > Adding people with DMA knowledge to cc, maybe someone knows what is
> > > > going on.
> > > > 
> > > > Here's the story:
> > > > Sudip sees usb issues on a Intel Atom based board with 4.14.2 kernel.
> > > > All tracing points to dma_pool_zalloc() returning the same dma address
> > > > block on
> > > > consecutive calls.

We have started testing with v4.14.47 now and we are seeing the issue
with it also. :(
---
Regards
Sudip

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WARNING: multiple messages have this Message-ID (diff)
From: Sudip Mukherjee <sudipm.mukherjee-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
To: Mathias Nyman <mathias.nyman-VuQAYsv1563Yd54FQh9/CA@public.gmane.org>
Cc: Mathias Nyman
	<mathias.nyman-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>,
	linux-usb-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	lukaszx.szulc-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org,
	iommu-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org,
	Andy Shevchenko
	<andriy.shevchenko-VuQAYsv1563Yd54FQh9/CA@public.gmane.org>,
	Christoph Hellwig <hch-jcswGhMUV9g@public.gmane.org>
Subject: Re: usb HC busted?
Date: Fri, 8 Jun 2018 10:07:52 +0100	[thread overview]
Message-ID: <20180608090712.3s52blbquphfmme6@debian> (raw)
In-Reply-To: <2e8829c2-850d-6bca-5f0c-58a809dc9499-VuQAYsv1563Yd54FQh9/CA@public.gmane.org>

Hi All,

On Thu, Jun 07, 2018 at 10:40:03AM +0300, Mathias Nyman wrote:
> On 06.06.2018 19:45, Sudip Mukherjee wrote:
> > Hi Andy,
> > 
> > And we meet again. :)
> > 
> > On Wed, Jun 06, 2018 at 06:36:35PM +0300, Andy Shevchenko wrote:
> > > On Wed, 2018-06-06 at 17:12 +0300, Mathias Nyman wrote:
> > > > On 04.06.2018 18:28, Sudip Mukherjee wrote:
> > > > > On Thu, May 24, 2018 at 04:35:34PM +0300, Mathias Nyman wrote:
> > > > > > 
> > > 
> > > > Odd and unlikely, but to me this looks like some issue in allocating
> > > > dma memory
> > > > from pool using dma_pool_zalloc()
> > > > 
> > > > Adding people with DMA knowledge to cc, maybe someone knows what is
> > > > going on.
> > > > 
> > > > Here's the story:
> > > > Sudip sees usb issues on a Intel Atom based board with 4.14.2 kernel.
> > > > All tracing points to dma_pool_zalloc() returning the same dma address
> > > > block on
> > > > consecutive calls.

We have started testing with v4.14.47 now and we are seeing the issue
with it also. :(

--
Regards
Sudip

             reply	other threads:[~2018-06-08  9:07 UTC|newest]

Thread overview: 75+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-06-08  9:07 Sudip Mukherjee [this message]
2018-06-08  9:07 ` usb HC busted? Sudip Mukherjee
  -- strict thread matches above, loose matches on Subject: below --
2018-07-21 10:55 Sudip Mukherjee
2018-07-21 10:55 ` Sudip Mukherjee
2018-07-20 14:09 Alan Stern
2018-07-20 14:09 ` Alan Stern
2018-07-20 12:54 Sudip Mukherjee
2018-07-20 12:54 ` Sudip Mukherjee
2018-07-20 11:46 Mathias Nyman
2018-07-20 11:46 ` Mathias Nyman
2018-07-20 11:10 Mathias Nyman
2018-07-20 11:10 ` Mathias Nyman
2018-07-19 17:32 Sudip Mukherjee
2018-07-19 17:32 ` Sudip Mukherjee
2018-07-19 15:42 Mathias Nyman
2018-07-19 15:42 ` Mathias Nyman
2018-07-19 14:57 Alan Stern
2018-07-19 14:57 ` Alan Stern
2018-07-19 11:34 Sudip Mukherjee
2018-07-19 11:34 ` Sudip Mukherjee
2018-07-19 10:59 Mathias Nyman
2018-07-19 10:59 ` Mathias Nyman
2018-07-17 17:01 Sudip Mukherjee
2018-07-17 17:01 ` Sudip Mukherjee
2018-07-17 15:59 Sudip Mukherjee
2018-07-17 15:59 ` Sudip Mukherjee
2018-07-17 15:52 Greg Kroah-Hartman
2018-07-17 15:52 ` Greg KH
2018-07-17 15:10 Sudip Mukherjee
2018-07-17 15:10 ` Sudip Mukherjee
2018-07-17 15:08 Alan Stern
2018-07-17 15:08 ` Alan Stern
2018-07-17 14:49 Sudip Mukherjee
2018-07-17 14:49 ` Sudip Mukherjee
2018-07-17 14:40 Sudip Mukherjee
2018-07-17 14:40 ` Sudip Mukherjee
2018-07-17 14:31 Alan Stern
2018-07-17 14:31 ` Alan Stern
2018-07-17 14:28 Alan Stern
2018-07-17 14:28 ` Alan Stern
2018-07-17 13:53 Greg Kroah-Hartman
2018-07-17 13:53 ` Greg KH
2018-07-17 13:20 Sudip Mukherjee
2018-07-17 13:20 ` Sudip Mukherjee
2018-07-17 12:04 Greg Kroah-Hartman
2018-07-17 12:04 ` Greg KH
2018-07-17 11:41 Sudip Mukherjee
2018-07-17 11:41 ` Sudip Mukherjee
2018-06-30 21:07 Sudip Mukherjee
2018-06-30 21:07 ` Sudip Mukherjee
2018-06-29 11:41 Mathias Nyman
2018-06-29 11:41 ` Mathias Nyman
2018-06-27 12:20 Sudip Mukherjee
2018-06-27 12:20 ` Sudip Mukherjee
2018-06-27 11:59 Sudip Mukherjee
2018-06-27 11:59 ` Sudip Mukherjee
2018-06-25 16:15 Sudip Mukherjee
2018-06-25 16:15 ` Sudip Mukherjee
2018-06-21 11:01 Mathias Nyman
2018-06-21 11:01 ` Mathias Nyman
2018-06-21  0:53 Sudip Mukherjee
2018-06-21  0:53 ` Sudip Mukherjee
2018-06-07  7:40 Mathias Nyman
2018-06-07  7:40 ` Mathias Nyman
2018-06-06 16:45 Sudip Mukherjee
2018-06-06 16:45 ` Sudip Mukherjee
2018-06-06 16:42 Sudip Mukherjee
2018-06-06 16:42 ` Sudip Mukherjee
2018-06-06 15:36 Andy Shevchenko
2018-06-06 15:36 ` Andy Shevchenko
2018-06-06 14:12 Mathias Nyman
2018-06-06 14:12 ` Mathias Nyman
2018-06-04 15:28 Sudip Mukherjee
2018-06-03 19:37 Sudip Mukherjee
2018-05-24 13:35 Mathias Nyman

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