This bug was fixed in the package linux-oem - 4.15.0-1050.57

linux-oem (4.15.0-1050.57) bionic; urgency=medium

  * bionic/linux-oem: 4.15.0-1050.57 -proposed tracker (LP: #1839261)

  * Packaging resync (LP: #1786013)
    - [Packaging] update helper scripts

  [ Ubuntu: 4.15.0-58.64 ]

  * unable to handle kernel NULL pointer dereference at 000000000000002c (IP:
    iget5_locked+0x9e/0x1f0) (LP: #1838982)
    - Revert "ovl: set I_CREATING on inode being created"
    - Revert "new primitive: discard_new_inode()"

 -- Chia-Lin Kao (AceLan) <>  Wed, 07 Aug 2019
18:14:17 +0800

** Changed in: linux-oem (Ubuntu)
       Status: Invalid => Fix Released

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  System hangs after play video from thunderbolt HDD and then S3

Status in linux-oem package in Ubuntu:
  Fix Released
Status in linux-oem source package in Bionic:
  Fix Released

Bug description:
  System hangs after played video from TBT storage, and then suspend the 
system. It enters suspend correctly, but hangs during waking up.

  There are 2 commits in upstream which fix this issue.
     95c80bc6952b PCI/PME: Fix hotplug/sysfs remove deadlock in 
     3943af9d01e9 PCI: pciehp: Ignore Link State Changes after powering off a 

  Verified on below thunderbolt interface with thunderbolt HDD
  01:00.0 PCI bridge [0604]: Intel Corporation JHL6340 Thunderbolt 3 Bridge (C 
step) [Alpine Ridge 2C 2016] [8086:15da] (rev 02)

  [Regression Potential]
  Low, both commits have been SRU to Ubuntu Disco 5.0 kernel through stable 
update, and the fix on remove functions are small and reasonable.

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