USB stress test failure on AMD SB600

Bug #198619 reported by Shane Huang on 2008-03-05
Affects Status Importance Assigned to Milestone
Fix Released
linux (Ubuntu)
Stefan Bader

Bug Description

Description of problem:

There is one SB600 USB bug which will lead to usb stress test failure:

The workaround contains three linux patches:;a=commitdiff;h=07d29b63ef6b39963ab37818653284d861cf55af;a=commitdiff;h=f8fa7571a928d6d0e1b7444b0ea69ec7dc7db3b6

I backported these three patches for Ubuntu kernel 2.6.24-11.17,
please help to add it into the kernel of Ubuntu 8.04.


Changed in linux:
status: Unknown → In Progress
Shane Huang (shane-huang) wrote :

Linux USB guys submit another patch to make things better:

And that new patch can also replace this one:

So, I backported and attach this new patch here.
Can you apply it as well as the above patch?
You need apply the above patch at first, then this patch.

Please also note that these two patch is needed if your kernel <= 2.6.24
because they will be included from kernel 2.6.25


Shane Huang (shane-huang) wrote :

I'm sorry that I attached another patch by mistake just now,
please use this one to replace the above one "Another USB patch to make things better"

Hi Shane,

Thanks for the upstream references, it's very helpful. I've reassigned this to the kernel team for their consideration. Thanks.

Changed in linux:
assignee: nobody → ubuntu-kernel-team
importance: Undecided → Medium
status: New → Triaged
Stefan Bader (smb) on 2008-03-10
Changed in linux:
assignee: ubuntu-kernel-team → stefan-bader-canonical
status: Triaged → In Progress
Stefan Bader (smb) wrote :


thanks for the references. We try to get those integrated with Hardy, however this might be after beta.

Shane Huang (shane-huang) wrote :

The third patch
has been added to linus source tree too, which is:;a=commit;h=e82cc1288fa57857c6af8c57f3d07096d4bcd9d9

But there is some small difference between them,
the latter(git commit) also modified another line as below:

@@ -781,7 +811,7 @@ static int ehci_urb_enqueue (
 static void unlink_async (struct ehci_hcd *ehci, struct ehci_qh *qh)
        /* failfast */
- if (!HC_IS_RUNNING(ehci_to_hcd(ehci)->state))
+ if (!HC_IS_RUNNING(ehci_to_hcd(ehci)->state) && ehci->reclaim)

        /* if it's not linked then there's nothing to do */

Can you also modify it? I will NOT do any special backport for this line alone.


Shane Huang (shane-huang) wrote :

Again, two patches plus one line modification should be added to fix the bug:
1. "backported patch to fix USB stress test failure"
2. "to replace the above attached patch by mistake"
- if (!HC_IS_RUNNING(ehci_to_hcd(ehci)->state))
+ if (!HC_IS_RUNNING(ehci_to_hcd(ehci)->state) && ehci->reclaim)

If Hardy will use final stable 2.6.25 in the future, all these patches will be
included automatically, we need not backport any of them.

floid (jkanowitz) wrote :

Just found this issue when I was about to report my ongoing problems with SB600 USB support (symptoms as described, with an AMD 690G board, 32-bit install with powernowd enabled, and fglrx and VMWare modules installed -- all of which had me losing hope that I'd ever track down the bug). Please let me confirm that this is a major issue for users and let me thank all of you (and all involved on the bug and LKML threads) for working on it.

FWIW, the misbehavior is being observed with 2.6.22-14-generic #1 SMP Tue Feb 12 07:42:25 UTC 2008 i686 GNU/Linux on 7.10.

Stefan Bader (smb) wrote :

Cherry picked the upstream patches provided by Shane,

Changed in linux:
status: In Progress → Fix Committed
Stefan Bader (smb) wrote :

Yes, I applied all three.


Launchpad Janitor (janitor) wrote :

This bug was fixed in the package linux - 2.6.24-13.23

linux (2.6.24-13.23) hardy; urgency=low

  [Alessio Igor Bogani]

  * rt: Updated configuration files

  [Ben Collins]

  * openvz: New custom flavour for OpenVZ
  * config: Disable IDE AMD driver in favor of PATA version
    - LP: #181561
  * config: Disable IDE VIA driver in favor of PATA version
    - LP: #181561
  * drivers/video: Restore gutsy backlight dimming behavior
    - LP: #205261
  * build/config: Enable CONFIG_CIFS_WEAK_PW_HASH
    - LP: #202445

  [Colin Ian King]

  * SAUCE: Add support for version 4 of Chelsio NICs in cxgb3 driver
    - LP: #201893

  [Kees Cook]

  * AppArmor: re-add missing "type" field in syslog reports.
    - LP: #202888
  * kvm: reset TSS on x86_64 to avoid ioperm bitmap corruption
    - LP: #144900

  [Stefan Bader]

  * USB: EHCI: add separate IAA watchdog timer
    - LP: #198619
  * SAUCE: Always use SCO protocol (disable eSCO support)
    - LP: #39414
  * PM: Introduce PM_EVENT_HIBERNATE callback state
    - LP: #201086

  [Tim Gardner]

  * Disable DRM suspend/resume on pre-915 Intel chips
    - LP: #207496
  * frame buffer regression - screen blank except for blinking cursor after fbcon
    - LP: #201591

 -- Tim Gardner <email address hidden> Wed, 19 Mar 2008 10:05:05 -0400

Changed in linux:
status: Fix Committed → Fix Released
Changed in linux:
status: In Progress → Fix Released
Changed in linux:
importance: Unknown → Medium
To post a comment you must log in.
This report contains Public information  Edit
Everyone can see this information.

Other bug subscribers

Remote bug watches

Bug watches keep track of this bug in other bug trackers.