https://sourceware.org/bugzilla/show_bug.cgi?id=22985
H.J. Lu <hjl.tools at gmail dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |RESOLVED
Resolution|--- |MOVED
--- Comment #2 from H.J. Lu <hjl.tools at gmail dot com> ---
This is a kernel bug:
https://bugzilla.kernel.org/show_bug.cgi?id=198851
and will be fixed by
Commit-ID: e3d03598e8ae7d195af5d3d049596dec336f569f
Gitweb: https://git.kernel.org/tip/e3d03598e8ae7d195af5d3d049596dec336f569f
Author: H.J. Lu <[email protected]>
AuthorDate: Mon, 19 Mar 2018 13:57:46 -0700
Committer: Ingo Molnar <[email protected]>
CommitDate: Tue, 20 Mar 2018 08:03:03 +0100
x86/build/64: Force the linker to use 2MB page size
Binutils 2.31 will enable -z separate-code by default for x86 to avoid
mixing code pages with data to improve cache performance as well as
security. To reduce x86-64 executable and shared object sizes, the
maximum page size is reduced from 2MB to 4KB. But x86-64 kernel must
be aligned to 2MB. Pass -z max-page-size=0x200000 to linker to force
2MB page size regardless of the default page size used by linker.
Tested with Linux kernel 4.15.6 on x86-64.
Signed-off-by: H.J. Lu <[email protected]>
Cc: Andy Shevchenko <[email protected]>
Cc: Eric Biederman <[email protected]>
Cc: H. Peter Anvin <[email protected]>
Cc: Juergen Gross <[email protected]>
Cc: Kees Cook <[email protected]>
Cc: Kirill A. Shutemov <[email protected]>
Cc: Linus Torvalds <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Thomas Gleixner <[email protected]>
Link:
http://lkml.kernel.org/r/came9rop4_%[email protected]
Signed-off-by: Ingo Molnar <[email protected]>
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