After several suspends and plenty of uptime on battery, I'm fairly confident that linux-image-6.12.12+bpo-amd64_6.12.12-1~bpo12+1_amd64 paired with firmware-atheros_20250410-2~bpo12+1_all is stable. There are only 2 commits to the ath12k driver between 6.12.12 and 6.12.22:
44de00e8bc8f wifi: ath12k: fix handling of 6 GHz rules 425f6a38173b wifi: ath12k: fix tx power, max reg power update to firmware So, I'll next test 6.12.22 with reverts of one or both of these. On Wed, Jun 11, 2025 at 9:50 PM Matt Mower <[email protected]> wrote: > For what it's worth, if you check the replies after the original report, > you can see that I tested 6.12.32 as well as 6.12.27 with ath12k patches > reverted. Unfortunately, I can reproduce it in 6.12.22 now as well; the bug > only seems to appear when my laptop is not connected to a power source. I > reproduce it most often when the device shuts down or goes to sleep, at > which point it freezes completely. I snapped a picture when I saw more > debugging information that normal on the screen (attached). I've tried > downgrading to firmware-atheros_20250410-2~bpo12+1_all as well (dmesg > reports firmware fw_version 0x100301e1 fw_build_timestamp 2023-12-06 > 04:05), and that didn't resolve the issue. > > I'm continuing to test older kernel and firmware versions until I find > something stable. > > On Wed, Jun 11, 2025 at 1:49 PM Uwe Kleine-König < > [email protected]> wrote: > >> Control: tag -1 +moreinfo >> >> Hello Matt, >> >> On Sun, Jun 08, 2025 at 08:00:43AM -0700, Matt Mower wrote: >> > After updating from linux-image-6.12.22+bpo-amd64 to >> linux-image-6.12.27+bpo- >> > amd64, I am seeing lots of IO_PAGE_FAULT events for device ath12k_pci, >> and >> > twice my system has completely frozen. >> >> There are a few ath12k patches between 6.12.22 and 6.12.27 and a few >> more in later stable releases in the 6.12.x series. Can you please test >> on the latest 6.12 kernel? There is currently no backport kernel for >> that version, but in my experience the kernel from testing should >> install fine on a stable box. >> >> If the issue also happens on 6.12.32, someone has to bring that forward >> to upstream's attention. >> >> Best regards >> Uwe >> >

