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A mirror of the official Linux kernel repository just in case
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Several i586-class CPUs supporting this instruction are missing from the X86_CMPXCHG64 config group. Using a configuration with either M586TSC or M586MMX currently sets X86_MINIMUM_CPU_FAMILY=4 instead of the correct value of 5. Booting on an i486 it will fail to generate the "This kernel requires an i586 CPU, but only detected an i486 CPU" message and intentional halt as expected. It will instead just silently hang when it hits i586-specific instructions. The M586 CPU is not in this list because at least the Cyrix 5x86 lacks this instruction, and perhaps others. Signed-off-by: Matthew Whitehead <tedheadster@gmail.com> Cc: Andy Lutomirski <luto@kernel.org> Cc: Arjan van de Ven <arjan@linux.intel.com> Cc: Borislav Petkov <bp@alien8.de> Cc: Brian Gerst <brgerst@gmail.com> Cc: Denys Vlasenko <dvlasenk@redhat.com> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Josh Poimboeuf <jpoimboe@redhat.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/r/1518713696-11360-1-git-send-email-tedheadster@gmail.com Signed-off-by: Ingo Molnar <mingo@kernel.org> |
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Linux kernel ============ This file was moved to Documentation/admin-guide/README.rst Please notice that there are several guides for kernel developers and users. These guides can be rendered in a number of formats, like HTML and PDF. In order to build the documentation, use ``make htmldocs`` or ``make pdfdocs``. There are various text files in the Documentation/ subdirectory, several of them using the Restructured Text markup notation. See Documentation/00-INDEX for a list of what is contained in each file. 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.