Fixed by upstream commit:
commit feca7746d5d9e84b105a613b7f3b6ad00d327372
Author: Alan Stern
Date: Fri Mar 1 10:51:15 2013 -0500
USB: EHCI: don't check DMA values in QH overlays
** Changed in: linux (Ubuntu)
Status: In Progress => Fix Released
--
You received this bug notificati
I'll second that - thanks Alan for the great detective work.
And Joseph, thanks for building all those kernels, and most importantly,
for acting on this bug report in the first place.
--
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
ht
Thanks for all your hard work on this bug, Alan. And thank you,
Stephen, for finding this bug and all the help testing.
--
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/1088733
Title:
Regression in d
Good. I will submit the changes for inclusion in an upcoming stable
kernel release.
--
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/1088733
Title:
Regression in dib0700 dvb-t driver
To manage notifi
Thanks again Joseph.
Alan - I'm quite certain your patch fixes the problem for me.
I've now tried at least ten first-after-reboot recordings, and every
single one has worked. I've also tried plenty of other combinations,
including multiple simultaneous recordings, and no failures there
either.
T
A 32 bit kernel without Alan's patches can now be downloaded from:
http://people.canonical.com/~jsalisbury/lp1088733/
--
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/1088733
Title:
Regression in dib0
Sorry, Stephen. I'll build a 32 bit kernel now.
--
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/1088733
Title:
Regression in dib0700 dvb-t driver
To manage notifications about this bug go to:
https:
Thanks for that Joseph, but unfortunately that kernel's been built for
amd64, and I'm on i386.
--
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/1088733
Title:
Regression in dib0700 dvb-t driver
To ma
Hi Stephen,
I build a kernel withoug Alan's patches applied. This would be a stock
Raring kernel based off v3.8.
The test kernel can be downloaded from:
http://people.canonical.com/~jsalisbury/lp1088733/
I've been seeing some random panics with the 3.8 kernel as well. If you
are seeing what I
Joseph, could you please build me a kernel *without* Alan's patches?
I've been getting sporadic kernel panics during startup, and I want to
make sure these aren't related to these patches.
I'm pretty sure they're not, as I've been getting them with all the 3.8
kernels, and have always assumed its
No recording failures so far, but see the next comment.
--
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/1088733
Title:
Regression in dib0700 dvb-t driver
To manage notifications about this bug go to:
Early indications are good!
I've installed this kernel and have done a few manual tests. Three
reboots, and multiple recordings done, no failures as yet.
I'll now schedule a few days worth of wakeup-record-shutdown cycles and
see what we get.
--
You received this bug notification because you ar
Thanks for the updated patch, Alan.
Stephen, I build a new test kernel with Alan's latest patch. The test kernel
can be downloaded from:
http://people.canonical.com/~jsalisbury/lp1088733/
Can you test this kernel per Alan's and collect the data Alan requested
in comment #28?
Thanks again!
--
** Tags added: patch
--
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/1088733
Title:
Regression in dib0700 dvb-t driver
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/
Here's a patch to try; it is based on vanilla 3.8. It contains an
attempted fix for the second software bug plus a work-around for the
hardware bug.
If this doesn't work, I'd like to see another combined usbmon/dmesg
output from a kernel built with this patch plus the most recent
debugging patch
Thanks for taking the time to look into this Alan, and for all your help
Joseph.
--
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/1088733
Title:
Regression in dib0700 dvb-t driver
To manage notificati
This is good; I think I see what the problem is.
It's actually very complicated, involving two software bugs and a
hardware bug. The commit you identified fixes one of the software bugs,
so it can't simply be reverted. But in doing so, it exposed the other
software bug. My attempts at fixing th
Here's another set of captures, using the kernel from comment #23.
There's only failed recording captures here.
Alan, let me know if you'd like me to try capturing a successful
recording.
** Attachment added: "USB tracedata using kernel from comment #23"
https://bugs.launchpad.net/ubuntu/+so
Not a problem Joseph.
With any luck I'll be able to give that a run later today.
--
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/1088733
Title:
Regression in dib0700 dvb-t driver
To manage notificat
Stephen, I build a new test kernel with Alan's latest patch and
CONFIG_USB_DEBUG enabled. The test kernel can be downloaded from:
http://people.canonical.com/~jsalisbury/lp1088733/
Can you test this kernel per Alan's and collect the data Alan requested
in comment #18? Sorry for asking to collect
I'll rebuilt the kernel with CONFIG_USB_DEBUG enabled and post a link to
it shortly.
--
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/1088733
Title:
Regression in dib0700 dvb-t driver
To manage notifi
I finally had a chance to take a look at the new trace data set.
Unfortunately it appears that the kernel was built without
CONFIG_USB_DEBUG, making the data useless.
--
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
https://bugs.launchp
Sorry for the delay.
Attached is new tracedata with Alan's second patch.
Two failed recording runs were captured, as well as one successful run included
for comparison.
All of these runs were the first recording after a reboot.
Notably, with this diagnostic patch, approximately 50% of the first
Thanks for the updated patch, Alan.
Stephen, I build a new test kernel with Alan's latest patch. The test kernel
can be downloaded from:
http://people.canonical.com/~jsalisbury/lp1088733/
Can you test this kernel per Alan's and collect the data Alan requested
in comment #18?
Thanks again!
--
On Wed, 6 Feb 2013, Stephen Thirlwall wrote:
> Attached is another set of usbmon captures, as well as the dmesg output
> for each session.
I get the impression that this is a hardware bug, but there's not enough
data to be sure. Attached is a revised version of the diagnostic patch;
it will pro
Thanks for the kernel Joseph - that's a big help.
Attached is another set of usbmon captures, as well as the dmesg output
for each session.
Unlike last time, I was not able to get a recording to work the first
time through. I'll keep trying though, and post the results if I get one
to happen.
**
Also, for the 3.8 kernel, you will need to install both the linux-image
and linux-image-extra packages.
--
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/1088733
Title:
Regression in dib0700 dvb-t drive
The test kernel can be downloaded from:
http://people.canonical.com/~jsalisbury/lp1088733/
--
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/1088733
Title:
Regression in dib0700 dvb-t driver
To manage
I created a Raring test kernel with the patches in comment #12. Can you
test this kernel and collect data similar to what you did in comment
#11?
Thanks again for all the help testing!
--
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
Hi Stephen,
I'll build a test kernel for you to test with this patch applied.
--
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/1088733
Title:
Regression in dib0700 dvb-t driver
To manage notification
Stephen, please try this debugging patch. Let's see if the output it
produces can be matched up to the usbmon data for both working and non-
working cases.
** Attachment added: "Diagnostic patch for EHCI qh_refresh() change"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1088733/+attach
These are the results of making recordings with mythtv, capturing the
output from /sys/kernel/debug/usb/usbmon/1u.
It is looking likely from this testing that usually only the first
recording after boot fails. Subsequent recordings succeed.
Captures of both working and failed recordings are inclu
Happy to collect that data, but I'm on vacation right now and won't be
back until the first week of February.
Shall gather some usb tracedata when I return.
Thanks again.
--
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
https://bugs.
@Stephen,
I've reported this issue upstream. The upstream developers would like
to see what happens in both a failed and a successful recording attempt,
while collecting USB trace data.
Would it be possible for you to collect some USB Tracedata for both
cases? There are some web pages that desc
The problem still occurs in the v3.8-rc2 kernel.
--
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/1088733
Title:
Regression in dib0700 dvb-t driver
To manage notifications about this bug go to:
https:
Before I submit a request to have that commit reverted, can you test the
latest mainline kernel, which is v3.8-rc2? Just to confirm the bug
isn't already fixed upstream. The kernel is available from:
http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.8-rc2-raring/
--
You received this bug notifi
I can confirm that this kernel fixes the bug.
I can also confirm that the bug is present in the stock 3.2.0-35 kernel.
Thanks for looking into this Joseph!
--
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bu
I built a Precise test kernel with commit
1cef533d4e688acbf048b5b32e6f3ca9a265ed4e reverted. The test kernel can
be downloaded from:
http://people.canonical.com/~jsalisbury/lp1088733/
Can you test that kernel and report back if it fixes this bug?
Thanks in advance!
** Changed in: linux (Ubuntu
** Changed in: linux (Ubuntu)
Status: Confirmed => Triaged
--
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/1088733
Title:
Regression in dib0700 dvb-t driver
To manage notifications about this
** Changed in: linux (Ubuntu)
Status: Incomplete => Confirmed
--
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/1088733
Title:
Regression in dib0700 dvb-t driver
To manage notifications about th
Problem also appears in this kernel: http://kernel.ubuntu.com/~kernel-
ppa/mainline/v3.7-raring/
** Tags added: kernel-bug-exists-upstream
--
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/1088733
Title
Thanks for bisecting and finding the commit that introduced this
regression. It would also be good to know if this bug is fixed
upstream.
Would it be possible for you to test the latest upstream kernel? Refer
to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest
v3.7 kernel[0]
42 matches
Mail list logo
