** Changed in: hwe-next
Status: New => Fix Released
** No longer affects: linux-oem-5.10 (Ubuntu)
** No longer affects: linux-oem-5.10 (Ubuntu Focal)
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Packages, which is subscribed to linux-oem-5.13 in Ubuntu.
https://bugs.launchpad.net/bugs/1938689
Title:
[SRU][H/OEM-5.10/OEM-5.13/U] Fix system hang after unplug tbt dock
Status in HWE Next:
Fix Released
Status in linux package in Ubuntu:
Fix Released
Status in linux-oem-5.13 package in Ubuntu:
Invalid
Status in linux-oem-5.13 source package in Focal:
Fix Released
Status in linux source package in Hirsute:
Fix Released
Status in linux source package in Impish:
Fix Released
Bug description:
SRU justification:
[Impact]
System hang after unplug thunderbolt dock with Intel igc lan.
[Fix]
igc driver continue reading and writing MMIO address after PCI device is
unplugged.
This cause system page fault, and system hang.
Add safe check and prevent reading and writing the MMIO.
The patch is in maintainer's tree, but not merged to Linus's tree.
Due to the schedule, send SRU as SAUCE patch.
[Test]
Verified on hardware, after unplug the thunderbolt cable,
system work fine.
[Where problems could occur]
It may break the igc driver.
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