On Sun, Oct 31, 2021 at 7:52 PM Bart Van Assche <bvanassche@xxxxxxx> wrote: > > On 10/31/21 16:19, Justin Piszcz wrote: > > Diff between 5.14 and 5.15 .config files-- could it be something to do with > > CONFIG_IOMMU_DEFAULT_DMA_LAZY=y? > > That's hard to say. Is CONFIG_MAGIC_SYSRQ enabled? If not, please enable > it and hit Alt-Printscreen-t (dump task list; see also > Documentation/admin-guide/sysrq.rst) and share the contents of the > kernel log. If that would not be convenient, please try to bisect this > issue. [ .. ] It appears at this point in the boot process the keyboard (USB and PS2) are not yet available and/or do not respond in this scenario (I do have CONFIG_MAGIC_SYSRQ enabled+have used it in the past). I'll build the prior 5.15-rc(1-7) to check where it stopped working and reply back to the list when I have that info. Thanks! Justin.
