On Mon, Nov 03 2025 at 15:24, Mark Brown wrote:

On Tue, Oct 14, 2025 at 08:49:09AM +0200, Thomas Weißschuh wrote:

quoted

An upcoming change will allocate the datapages dynamically instead of as
part of the kernel image. Such pages can only be mapped through
'struct page' and not through PFNs.

I'm seeing some boot failures on some arm64 platforms in -next which are
bisecting to this patch in -next.  Unfortunately the diagnostics aren't
super useful, we seem to just stop making progress in userspace with no
obvious output.  One sample log from the FVP is:

   https://lava.sirena.org.uk/scheduler/job/2036229#L1268

which isn't super instructive.  Not all platforms seem to be affected,
I've seen this on at least the Arm FVP, Orion O6 and Libretech Renegade
Elite.  The diagnostics aren't very clear here but given that I'm seeing
the same issue and bisect result on multiple platforms it seemed worth
mentioning.  Some platforms do seem fine.

Can you try

    git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git timers/vdso

which is rc1 based and only contains the VDSO changes. That might give
us a better hint.

Thanks,

        tglx