Public bug reported:
[Impact]
AMD GPU crash with a message: " cp queue preemption timeout".
[Fix]
Disable MCBP(mid command buffer preemption) by default as old Mesa
hangs with it.
[Test]
Tested on hardware, play web video for more than 1 hour OK.
[Where problems could occur]
It may break AMD GPU.
This issue is only reproduced on v6.5+ kernel versions, so SRU for
oem-6.5, mantic and noble.
** Affects: hwe-next
Importance: High
Assignee: AaronMa (mapengyu)
Status: In Progress
** Affects: linux (Ubuntu)
Importance: High
Status: New
** Affects: linux-oem-6.5 (Ubuntu)
Importance: Undecided
Status: Invalid
** Affects: linux (Ubuntu Jammy)
Importance: Undecided
Status: Invalid
** Affects: linux-oem-6.5 (Ubuntu Jammy)
Importance: High
Status: New
** Affects: linux (Ubuntu Mantic)
Importance: High
Status: New
** Affects: linux-oem-6.5 (Ubuntu Mantic)
Importance: Undecided
Status: Invalid
** Affects: linux (Ubuntu Noble)
Importance: High
Status: New
** Affects: linux-oem-6.5 (Ubuntu Noble)
Importance: Undecided
Status: Invalid
** Tags: oem-priority originate-from-2043640 originate-from-2045573
originate-from-2047305 sutton
** Also affects: linux-oem-6.5 (Ubuntu)
Importance: Undecided
Status: New
** Also affects: linux (Ubuntu Noble)
Importance: Undecided
Status: New
** Also affects: linux-oem-6.5 (Ubuntu Noble)
Importance: Undecided
Status: New
** Also affects: linux (Ubuntu Mantic)
Importance: Undecided
Status: New
** Also affects: linux-oem-6.5 (Ubuntu Mantic)
Importance: Undecided
Status: New
** Also affects: linux (Ubuntu Jammy)
Importance: Undecided
Status: New
** Also affects: linux-oem-6.5 (Ubuntu Jammy)
Importance: Undecided
Status: New
** Changed in: linux (Ubuntu Jammy)
Status: New => Invalid
** Changed in: linux-oem-6.5 (Ubuntu Mantic)
Status: New => Invalid
** Changed in: linux-oem-6.5 (Ubuntu Noble)
Status: New => Invalid
** Tags added: oem-priority originate-from-2047305 sutton
** Tags added: originate-from-2043640
** Tags added: originate-from-2045573
** Changed in: hwe-next
Status: New => In Progress
** Changed in: hwe-next
Importance: Undecided => High
** Changed in: linux (Ubuntu Mantic)
Importance: Undecided => High
** Changed in: linux (Ubuntu Noble)
Importance: Undecided => High
** Changed in: linux-oem-6.5 (Ubuntu Jammy)
Importance: Undecided => High
** Changed in: hwe-next
Assignee: (unassigned) => AaronMa (mapengyu)
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https://bugs.launchpad.net/bugs/2047389
Title:
Fix AMDGPU crash on 6.5+ kernel
Status in HWE Next:
In Progress
Status in linux package in Ubuntu:
New
Status in linux-oem-6.5 package in Ubuntu:
Invalid
Status in linux source package in Jammy:
Invalid
Status in linux-oem-6.5 source package in Jammy:
New
Status in linux source package in Mantic:
New
Status in linux-oem-6.5 source package in Mantic:
Invalid
Status in linux source package in Noble:
New
Status in linux-oem-6.5 source package in Noble:
Invalid
Bug description:
[Impact]
AMD GPU crash with a message: " cp queue preemption timeout".
[Fix]
Disable MCBP(mid command buffer preemption) by default as old Mesa
hangs with it.
[Test]
Tested on hardware, play web video for more than 1 hour OK.
[Where problems could occur]
It may break AMD GPU.
This issue is only reproduced on v6.5+ kernel versions, so SRU for
oem-6.5, mantic and noble.
To manage notifications about this bug go to:
https://bugs.launchpad.net/hwe-next/+bug/2047389/+subscriptions
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