Hi,
We have some reports of long compute jobs on APUs hanging the system. This has been root caused and a workaround has been introduced in the mainline kernel. I didn't CC stable on the original W/A because I wanted to make sure we've had enough time to test it didn't have unintended side effects.
I feel comfortable with the testing at this point and I think it's worth bringing back to any stable kernels it will apply to 6.12.y and newer. The commit is:
1fb710793ce2619223adffaf981b1ff13cd48f17
Thanks,
On Sat, Oct 04, 2025 at 01:41:29PM -0500, Mario Limonciello (AMD) (kernel.org) wrote:
Hi,
We have some reports of long compute jobs on APUs hanging the system. This has been root caused and a workaround has been introduced in the mainline kernel. I didn't CC stable on the original W/A because I wanted to make sure we've had enough time to test it didn't have unintended side effects.
I feel comfortable with the testing at this point and I think it's worth bringing back to any stable kernels it will apply to 6.12.y and newer. The commit is:
1fb710793ce2619223adffaf981b1ff13cd48f17
It did not apply to 6.12.y, so if you want it there, can you provide a working backport?
thanks,
greg k-h
On 10/6/2025 5:04 AM, Greg KH wrote:
On Sat, Oct 04, 2025 at 01:41:29PM -0500, Mario Limonciello (AMD) (kernel.org) wrote:
Hi,
We have some reports of long compute jobs on APUs hanging the system. This has been root caused and a workaround has been introduced in the mainline kernel. I didn't CC stable on the original W/A because I wanted to make sure we've had enough time to test it didn't have unintended side effects.
I feel comfortable with the testing at this point and I think it's worth bringing back to any stable kernels it will apply to 6.12.y and newer. The commit is:
1fb710793ce2619223adffaf981b1ff13cd48f17
It did not apply to 6.12.y, so if you want it there, can you provide a working backport?
thanks,
greg k-h
Thanks, I see 6.16 and 6.17 had no problem. I'll find the contextually missing patches and send out 6.12.y separately.
On 10/6/2025 8:56 AM, Mario Limonciello (AMD) (kernel.org) wrote:
On 10/6/2025 5:04 AM, Greg KH wrote:
On Sat, Oct 04, 2025 at 01:41:29PM -0500, Mario Limonciello (AMD) (kernel.org) wrote:
Hi,
We have some reports of long compute jobs on APUs hanging the system. This has been root caused and a workaround has been introduced in the mainline kernel. I didn't CC stable on the original W/A because I wanted to make sure we've had enough time to test it didn't have unintended side effects.
I feel comfortable with the testing at this point and I think it's worth bringing back to any stable kernels it will apply to 6.12.y and newer. The commit is:
1fb710793ce2619223adffaf981b1ff13cd48f17
It did not apply to 6.12.y, so if you want it there, can you provide a working backport?
thanks,
greg k-h
Thanks, I see 6.16 and 6.17 had no problem. I'll find the contextually missing patches and send out 6.12.y separately.
OK - here's the 3 patches needed for 6.12.y to cleanly cherry-pick:
ce4971388c79d36b3f50f607c3278dbfae6c789b 1c687c0da9efb7c627793483a8927554764e7a55 15d8c92f107c17c2e585cb4888c67873538f9722
Thanks!
On Mon, Oct 06, 2025 at 12:37:30PM -0500, Mario Limonciello (AMD) (kernel.org) wrote:
On 10/6/2025 8:56 AM, Mario Limonciello (AMD) (kernel.org) wrote:
On 10/6/2025 5:04 AM, Greg KH wrote:
On Sat, Oct 04, 2025 at 01:41:29PM -0500, Mario Limonciello (AMD) (kernel.org) wrote:
Hi,
We have some reports of long compute jobs on APUs hanging the system. This has been root caused and a workaround has been introduced in the mainline kernel. I didn't CC stable on the original W/A because I wanted to make sure we've had enough time to test it didn't have unintended side effects.
I feel comfortable with the testing at this point and I think it's worth bringing back to any stable kernels it will apply to 6.12.y and newer. The commit is:
1fb710793ce2619223adffaf981b1ff13cd48f17
It did not apply to 6.12.y, so if you want it there, can you provide a working backport?
thanks,
greg k-h
Thanks, I see 6.16 and 6.17 had no problem. I'll find the contextually missing patches and send out 6.12.y separately.
OK - here's the 3 patches needed for 6.12.y to cleanly cherry-pick:
ce4971388c79d36b3f50f607c3278dbfae6c789b 1c687c0da9efb7c627793483a8927554764e7a55 15d8c92f107c17c2e585cb4888c67873538f9722
All now queued up, thanks.
greg k-h
linux-stable-mirror@lists.linaro.org
-
Greg KH -
Mario Limonciello (AMD) (kernel.org)