[added Jason (who authored the culprit) to the list of recipients; moved net people and list to BCC, guess they are not much interested in this anymore then] On 21.06.23 08:07, Sami Korkalainen wrote: > I bisected again. It seems I made some mistake last time, as I got a > different result this time. Maybe, because these problematic kernels may > boot fine sometimes, like I said before. > > Anyway, first bad commit (makes much more sense this time): > e7b813b32a42a3a6281a4fd9ae7700a0257c1d50 efi: random: refresh > non-volatile random seed when RNG is initialized > > I confirmed that this is the code causing the issue by commenting it > out (see the patch file). Without this code, the latest mainline boots fine. Jason, in that case it seems this is something for you. For the initial report, see here: https://lore.kernel.org/all/GQUnKz2al3yke5mB2i1kp3SzNHjK8vi6KJEh7rnLrOQ24OrlljeCyeWveLW9pICEmB9Qc8PKdNt3w1t_g3-Uvxq1l8Wj67PpoMeWDoH8PKk=@proton.me/ Quoting a part of it: ``` Linux 6.2 and newer are (mostly) unbootable on my old HP 6730b laptop, the 6.1.30 works still fine. The weirdest thing is that newer kernels (like 6.3.4 and 6.4-rc3) may boot ok on the first try, but when rebooting, the very same version doesn't boot. Some times, when trying to boot, I get this message repeated forever: ACPI Error: No handler or method for GPE [XX], disabling event (20221020/evgpe-839) On newer kernels, the date is 20230331 instead of 20221020. There is also some other error, but I can't read it as it gets overwritten by the other ACPI error, see image linked at the end. And some times, the screen will just stay completely blank. I tried booting with acpi=off, but it does not help. ``` Ciao, Thorsten (wearing his 'the Linux kernel's regression tracker' hat) -- Everything you wanna know about Linux kernel regression tracking: https://linux-regtracking.leemhuis.info/about/#tldr If I did something stupid, please tell me, as explained on that page. #regzbot introduced e7b813b32a42a3a6281a4fd9ae7700a0257c1d50