On Fri, 17 Nov 2017 17:44:57 +
Casey Leedom wrote:
> | From: Raj, Ashok
> | Sent: Friday, November 17, 2017 7:48 AM
> |
> | Reported by: Harsh
> | Reviewed by: Ashok Raj
> | Tested by: Jacob Pan
>
> Thanks everyone! I've updated our internal bug on this issue
> and noted that we need t
| From: Raj, Ashok
| Sent: Friday, November 17, 2017 7:48 AM
|
| Reported by: Harsh
| Reviewed by: Ashok Raj
| Tested by: Jacob Pan
Thanks everyone! I've updated our internal bug on this issue
and noted that we need to track down the remaining problems
which may be in our own code.
Casey
Hi Alex
On Fri, Nov 17, 2017 at 09:18:14AM -0700, Alex Williamson wrote:
> On Thu, 16 Nov 2017 13:09:33 -0800
> "Raj, Ashok" wrote:
>
> > >
> > > What do we do about this? I certainly can't rip out large page support
> > > and put a stable tag on the patch. I'm not really spotting what's
> >
On Thu, 16 Nov 2017 13:09:33 -0800
"Raj, Ashok" wrote:
> Hi Alex
>
> On Thu, Nov 16, 2017 at 02:32:44PM -0700, Alex Williamson wrote:
> > On Wed, 15 Nov 2017 15:54:56 -0800
> > Jacob Pan wrote:
> >
> > > Hi Alex and all,
> > >
> > > Just wondering if you could merge Robin's patch for the ne
Hi Alex
On Thu, Nov 16, 2017 at 02:32:44PM -0700, Alex Williamson wrote:
> On Wed, 15 Nov 2017 15:54:56 -0800
> Jacob Pan wrote:
>
> > Hi Alex and all,
> >
> > Just wondering if you could merge Robin's patch for the next rc. From
> > all our testing, this seems to be a solid fix and should be i
On Wed, 15 Nov 2017 15:54:56 -0800
Jacob Pan wrote:
> Hi Alex and all,
>
> Just wondering if you could merge Robin's patch for the next rc. From
> all our testing, this seems to be a solid fix and should be included in
> the stable releases as well.
Hi Jacob,
Sorry, this wasn't on my radar, I
Hi Alex and all,
Just wondering if you could merge Robin's patch for the next rc. From
all our testing, this seems to be a solid fix and should be included in
the stable releases as well.
Thanks,
Jacob
On Mon, 6 Nov 2017 10:47:09 -0800
Jacob Pan wrote:
> On Fri, 6 Oct 2017 16:43:09 +0200
> Jo
On Fri, 6 Oct 2017 16:43:09 +0200
Joerg Roedel wrote:
> On Tue, Oct 03, 2017 at 07:05:17PM +0100, Robin Murphy wrote:
> > Now, there are indeed plenty of drivers and subsystems which do
> > work on lists of explicitly single pages - anything doing some
> > variant of "addr = kmap_atomic(sg_page(s
On Fri, Oct 06, 2017 at 04:43:09PM +0200, Joerg Roedel wrote:
> On Tue, Oct 03, 2017 at 07:05:17PM +0100, Robin Murphy wrote:
> > Now, there are indeed plenty of drivers and subsystems which do work on
> > lists of explicitly single pages - anything doing some variant of
> > "addr = kmap_atomic(sg_
On Tue, Oct 03, 2017 at 07:05:17PM +0100, Robin Murphy wrote:
> Now, there are indeed plenty of drivers and subsystems which do work on
> lists of explicitly single pages - anything doing some variant of
> "addr = kmap_atomic(sg_page(sg)) + sg->offset;" is easy to spot - but I
> don't think DMA API
On 03/10/17 23:16, David Woodhouse wrote:
> On Tue, 2017-10-03 at 19:05 +0100, Robin Murphy wrote:
>>
>> Now, there are indeed plenty of drivers and subsystems which do work on
>> lists of explicitly single pages - anything doing some variant of
>> "addr = kmap_atomic(sg_page(sg)) + sg->offset;" is
Hi Robin
I now see your patch and it does seem to be fix the problem.
On Thu, Sep 28, 2017 at 08:43:46AM -0700, Ashok Raj wrote:
> Hi Robin
>
>
> On Thu, Sep 28, 2017 at 05:59:11PM +0100, Robin Murphy wrote:
> > I hope our email server hasn't got blacklisted again... Said patch is
> > the top o
| From: Harsh Jain
| Sent: Tuesday, October 3, 2017 5:22 AM
|
| Hi Robin/Ashok,
|
| Find attached trace of DMA write error. I had a look on trace but didn't
| find anything suspicious.
|
| Let me know if you need more trace.
As a reminder, Harsh and Atul will be waking up in a few hours, so if th
On Tue, 2017-10-03 at 19:05 +0100, Robin Murphy wrote:
>
> Now, there are indeed plenty of drivers and subsystems which do work on
> lists of explicitly single pages - anything doing some variant of
> "addr = kmap_atomic(sg_page(sg)) + sg->offset;" is easy to spot - but I
> don't think DMA API imp
On 03/10/17 13:55, David Woodhouse wrote:
> On Thu, 2017-09-28 at 15:14 +0100, Robin Murphy wrote:
>> The intel-iommu DMA ops fail to correctly handle scatterlists where
>> sg->offset is greater than PAGE_SIZE - the IOVA allocation is computed
>> appropriately based on the page-aligned portion of t
On Thu, 2017-09-28 at 15:14 +0100, Robin Murphy wrote:
> The intel-iommu DMA ops fail to correctly handle scatterlists where
> sg->offset is greater than PAGE_SIZE - the IOVA allocation is computed
> appropriately based on the page-aligned portion of the offset, but the
> mapping is set up relative
| From: Harsh Jain
| Sent: Friday, September 29, 2017 1:14:45 AM
|
| Robin,
|
| I tried running patch on our test setup.
|
| With "intel_iommu=on" : I can see single occurrence of DMAR Write failure
| on perf traffic with 10 thread.
|
| [ 749.616480] perf: interrupt took too long (3203 >
Robin,
I tried running patch on our test setup.
With "intel_iommu=on" : I can see single occurrence of DMAR Write failure on
perf traffic with 10 thread.
[ 749.616480] perf: interrupt took too long (3203 > 3202), lowering
kernel.perf_event_max_sample_rate to 62000
[ 852.500671] DMAR: DRH
Hi Robin
thanks.. i have no idea.. i see all the other patches from you :-)
my email has decided to play games with me i suppose :-)
On Thu, Sep 28, 2017 at 05:59:11PM +0100, Robin Murphy wrote:
> I hope our email server hasn't got blacklisted again... Said patch is
> the top of this very thread
On 28/09/17 14:29, Raj, Ashok wrote:
> Hi Casey
>
> On Thu, Sep 28, 2017 at 04:17:59PM +, Casey Leedom wrote:
>> Thanks Robin. Harsh can certainly test your latest patch as soon as he's
>> back in the office tomorrow morning India time. If your patch works and is
>> accepted, it sounds lik
Hi Casey
On Thu, Sep 28, 2017 at 04:17:59PM +, Casey Leedom wrote:
> Thanks Robin. Harsh can certainly test your latest patch as soon as he's
> back in the office tomorrow morning India time. If your patch works and is
> accepted, it sounds like the commit would be important enough to cons
Thanks Robin. Harsh can certainly test your latest patch as soon as he's
back in the office tomorrow morning India time. If your patch works and is
accepted, it sounds like the commit would be important enough to consider
backporting into various Long-Term Support releases and the affected
dist
The intel-iommu DMA ops fail to correctly handle scatterlists where
sg->offset is greater than PAGE_SIZE - the IOVA allocation is computed
appropriately based on the page-aligned portion of the offset, but the
mapping is set up relative to sg->page, which means it fails to actually
cover the whole
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