Ooops. I can see that point. The Startech card I'm using claims to be
based on the uPD720202: perhaps it has two if them. I'd say that the
uPD720202 needs the XHCI_TRUST_TX_LENGTH quirk as well.
-Jeff
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Thank you Joseph, sorry I couldn't try your test kernel but I've just
been chasing my tail trying to figure out why I can install some kernels
and not others.
My email is mysterylectric...@yahoo.com
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I wasn't able to test the kernel you provided, dpkg -i complained of
conflicting packages. I suspect because the kernel was down-rev relative to the
running kernel. But I don't reslly know, I'm relatively new to compilling and
installing kernels.
However, I was able to compile and install my
To see the latest regarding this bug please see bug 1773704. Someone
tried to fix this bug but introduced a typo. If you can build and
install your own kernel, as I've done to address this bug, you'll be all
set. If you can install the proposed test kernel (I tried and failed)
you may be able to
The underlying bug is also described in bug ID #1737629, but I think
that report was prior to the typo ie: before the "fix" with the typo was
added.
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The typo is still present in 4.15.0-29.31
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https://bugs.launchpad.net/bugs/1773704
Title:
Typo at line 184 in xhci-pci.c makes trouble for Renesas USB chipset
in Bionic 18.04
To
I downloaded the three files you mentioned and tried to install them
using 'dpkg -i *.deb' as root. Two of the pkgs installed OK but the
kernel proper did not, giving error:
Selecting previously unselected package
linux-image-unsigned-4.15.0-22-generic.
dpkg: regarding
No, premature. Bug still exists. I'll try your kernel at the next sitting.
-Jeff
On Tuesday, May 29, 2018, 1:11:03 PM PDT, Joseph Salisbury
wrote:
I built a patched test kernel. The test kernel can be downloaded from:
http://kernel.ubuntu.com/~jsalisbury/lp1773704
Can you test this
Hey! This bug may be fixed.As best I recall I did a fresh install from nightly
build about 3 days ago, but had not installed zoneminder so no op to tickle the
bug.
Today I did an upgrade and a dist-upgrade, then loaded zoneminder, started
pulling data over renesas port, so far no dmesg errors,
Just though of something. reinstalled a system from daily build yesterday.
So here's the deal: I'l try to see if it's fixed as of yesterday
But it will take me some hours to re-con zoneminder to trigger the bug.
-jeff
On Tuesday, May 29, 2018, 1:11:03 PM PDT, Joseph Salisbury
wrote:
Dear Mr. Salisbury,
I can't believe it's been 12 days since I filed this report. Seems like it was
just yesterday. And in fact it's just today I found your missives. Shame on me!
I'm having a bad case of battle fatigue with this issue. I'm deploying like
TODAY. Do I live with errors? Do I
Don't see the point in adding log files for a simple and obvious typo,
but before code was added for this fix I believe I did generate before
and after logs under bug ID #1710548. In any case I'm running kernels in
which I've fixed the typo.
Status changed to confirmed.
** Changed in: linux
Public bug reported:
A typo at line 184 in /drivers/usb/host/xhci-pci.c trashes a good fix.
183 if (pdev->vendor == PCI_VENDOR_ID_RENESAS &&
184 pdev->device == 0x0014)
185 xhci->quirks |= XHCI_TRUST_TX_LENGTH;
186 if (pdev->vendor ==
Hi,
It looks like someone attempted a fix, but it was beset by a typo. I fixed the
typo and compiled the kernel and the issue was resolved. I detailed the typo in
the original thread. Can you run this up the flagpole for me? I don't know how
to get in touch with the devs.
Thank you,
-Jeff
Yeah it's a typo.
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https://bugs.launchpad.net/bugs/1710548
Title:
Renesas / NEC - µPD720202 needs XHCI_TRUST_TX_LENGTH quirk? Logitech
C920 Webcam/Zoneminder/Startech
To manage
Hmm, having resigned to building my own kernels for the foreseeable
future, I DL'd the source tree for bionic and took a peek at xhci-pci.c
It looks like someone has tried to incorporate the patch of interest. I
find:
if (pdev->vendor == PCI_VENDOR_ID_RENESAS &&
** Description changed:
Building zoneminder server. I think I stumbled on a kernel bug.
The suggestion is that the popular Renesas / NEC - µPD720202 may need
"quirk" in the kernel.
-
Wiped the drive.
Loaded 17.04 Server
Now getting 100's of messages in DMESG complaining of
Bug still exists in 4.15 kernel/Bionc Beaver
** Description changed:
- In trying to build a zoneminder server, I think I stumbled on a kernel
- bug. It seems to have snuck in sometime between 16.04 desktop promoted
- to server, and 17.04 server promoted to desktop.
+ Building zoneminder server.
** Summary changed:
- Renesas / NEC - µPD720202 May also need Quirk in 17.04, no problem in 16.04?
Logitech C920 Webcam/Zoneminder/Startech
+ Renesas / NEC - µPD720202 needs XHCI_TRUST_TX_LENGTH quirk? Logitech C920
Webcam/Zoneminder/Startech
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Curious as to when this fix will propagate into mainline. Haven't looked
into it very deeply, but it seems that kernel/"ubuntu base" updates
trounce the fix.
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Title and post edited to reflect actual chipset name Renesas / NEC -
µPD720202 not 27xxx2 as initially and mistakenly reported.
Do not duplicate as new bug.
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** Summary changed:
- Nec/Renasas 27xxx2 May also need Quirk in 17.04, no problem in 16.04?
Logitech C920 Webcam/Zoneminder/Startech
+ Renesas / NEC - µPD720202 May also need Quirk in 17.04, no problem in 16.04?
Logitech C920 Webcam/Zoneminder/Startech
** Description changed:
In trying to
** Changed in: linux (Ubuntu)
Status: Incomplete => Confirmed
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Title:
Nec/Renasas 27xxx2 May also need Quirk in 17.04, no problem in
** Tags added: kernel-bug-exists-upstream
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Title:
Nec/Renasas 27xxx2 May also need Quirk in 17.04, no problem in 16.04?
Logitech C920
Placeholder for DMESG attachment after the fix, sorry: file extension
collision.
** Attachment added: "postfix.txt"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1710548/+attachment/4934482/+files/postfix.txt
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Placeholder for DMESG attachment after the fix incorporated by Kai-Heng
Feng in
http://people.canonical.com/~khfeng/linux-
image-4.13.0-rc5+_4.13.0-rc5+-2_amd64.deb
Note well the kernel complaints such as:
[96415.044917] handle_tx_event: 516 callbacks suppressed
[96415.044924] xhci_hcd
Dear Kai-Heng Feng,
Sure enough you fixed it. No complaints now.
I'd be very curious to look over the source code changes to improve my
linux-fu.
But that's secondary.
For now I hope an administrator can mark up my bug report to ensure that
the changes you have made get propagated.
Thank you
Will sit, and think, and talk to you soon.
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Title:
Nec/Renasas 27xxx2 May also need Quirk in 17.04, no problem in 16.04?
Logitech C920
Post script: these warnings do not crash or otherwise interfere with
system operation. ZoneMinder, in particular, `seems to function just
fine.
It's just...annoying and it seems the fix should be simple. Either this
chipset needs quirk, or not.
Does that sound crazy?
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Thank you, Joseph!
I did test upstream at v4.13-rcr4 as you suggested. Same complaints. I
tried v4.13-rcr4 "lowlatency" as well, same complaints.
What seems strange to me is that I don't think I was getting these
complaints under 16.04 LTS Desktop with Studio (ie
lowlatency)/LAMP/ZoneMinder
Placeholder for attachment
** Attachment added: "dmesg.4.13.0rc4"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1710548/+attachment/4933122/+files/dmesg.4.13.0rc4
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Public bug reported:
In trying to build a zoneminder server, I think I stumbled on a kernel
bug. It seems to have snuck in sometime between 16.04 desktop promoted
to server, and 17.04 server promoted to desktop.
The suggestion is that the very popular Nec/Renasas 27xxx2 may need
"quirk" in the
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