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Uninstrument arch/x86/platform/pvh/enlighten.c: KASAN has not been setup _this_ early in the boot process. Steps to reproduce: make allnoconfig make sure CONFIG_AMD_MEM_ENCRYPT is disabled AMD_MEM_ENCRYPT independently uninstruments lib/string.o so PVH boot code calls into uninstrumented memset() and memcmp() which can make the bug disappear depending on the compiler. enable CONFIG_PVH enable CONFIG_KASAN enable serial console this is fun exercise if you never done it from nothing :^) make qemu-system-x86_64 \ -enable-kvm \ -cpu host \ -smp cpus=1 \ -m 4096 \ -serial stdio \ -kernel vmlinux \ -append 'console=ttyS0 ignore_loglevel' Messages on serial console will easily tell OK kernel from unbootable kernel. In bad case qemu hangs in an infinite loop stroboscoping "SeaBIOS" message. Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Acked-by: Juergen Gross <jgross@suse.com> Message-ID: <20240802154253.482658-1-adobriyan@gmail.com> Signed-off-by: Juergen Gross <jgross@suse.com>
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the reStructuredText markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.