** Also affects: linux (Ubuntu Bionic)
   Importance: Undecided
       Status: New

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1788567

Title:
  System takes long time to read device via Thunderbolt 3 port

Status in HWE Next:
  New
Status in linux package in Ubuntu:
  In Progress
Status in linux source package in Bionic:
  New

Bug description:
  [Impact]
  On Dell XPS 13 with Dell TB16 docking station, sometimes the devices on 
docking station do not show up or takes couple minutes to be recognized.

  [Fix]
  This issue doesn't exist in 4.16 vanilla kernel, and after bisected the 
kernel and found below commit fixes this issue.
     cc5db3150e87 net: qcom/emac: Use proper free methods during TX
  Applied this commit on top of Bionic 4.15 kernel and confirmed it works.

  [Regression Potential]
  Low, this commit is more like a patch fixes a bug which has been introduced 
since the driver was created. It aligns the dma_map and dma_unmap methods which 
might cause issue in some cases.

To manage notifications about this bug go to:
https://bugs.launchpad.net/hwe-next/+bug/1788567/+subscriptions

-- 
Mailing list: https://launchpad.net/~kernel-packages
Post to     : kernel-packages@lists.launchpad.net
Unsubscribe : https://launchpad.net/~kernel-packages
More help   : https://help.launchpad.net/ListHelp

Reply via email to