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Date: Sat, 21 Jan 2017 10:34:43 +0800
From: kbuild test robot <>
To: Thomas Garnier <>
Cc:, Thomas Gleixner <>,
	Ingo Molnar <>, "H . Peter Anvin" <>,
	Thomas Garnier <>,
	Kees Cook <>,
	"Rafael J . Wysocki" <>,
	Pavel Machek <>, Andy Lutomirski <>,
	Borislav Petkov <>,
	Christian Borntraeger <>,
	Brian Gerst <>, He Chen <>,
	Dave Hansen <>, Chen Yucong <>,
	Baoquan He <>,
	Paul Gortmaker <>,
	Joerg Roedel <>, Paolo Bonzini <>,
	Radim Krčmář <>,
	Fenghua Yu <>,,,,,
Subject: Re: [PATCH v1 2/3] x86: Remap GDT tables in the Fixmap section

Hi Thomas,

[auto build test ERROR on tip/auto-latest]
[also build test ERROR on v4.10-rc4 next-20170120]
[cannot apply to tip/x86/core]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]

config: i386-randconfig-x003-201703 (attached as .config)
compiler: gcc-6 (Debian 6.2.0-3) 6.2.0 20160901
        # save the attached .config to linux build tree
        make ARCH=i386 

All error/warnings (new ones prefixed by >>):

   In file included from include/uapi/linux/stddef.h:1:0,
                    from include/linux/stddef.h:4,
                    from include/uapi/linux/posix_types.h:4,
                    from include/uapi/linux/types.h:13,
                    from include/linux/types.h:5,
                    from include/linux/list.h:4,
                    from include/linux/signal.h:4,
                    from arch/x86/mm/init_32.c:8:
   arch/x86/mm/init_32.c: In function 'mem_init':
>> include/linux/compiler.h:518:38: error: call to '__compiletime_assert_805' declared with attribute error: BUILD_BUG_ON failed: __fix_to_virt(__end_of_fixed_addresses) <= VMALLOC_END
     _compiletime_assert(condition, msg, __compiletime_assert_, __LINE__)
   include/linux/compiler.h:501:4: note: in definition of macro '__compiletime_assert'
       prefix ## suffix();    \
   include/linux/compiler.h:518:2: note: in expansion of macro '_compiletime_assert'
     _compiletime_assert(condition, msg, __compiletime_assert_, __LINE__)
   include/linux/bug.h:54:37: note: in expansion of macro 'compiletime_assert'
    #define BUILD_BUG_ON_MSG(cond, msg) compiletime_assert(!(cond), msg)
   include/linux/bug.h:78:2: note: in expansion of macro 'BUILD_BUG_ON_MSG'
     BUILD_BUG_ON_MSG(condition, "BUILD_BUG_ON failed: " #condition)
>> arch/x86/mm/init_32.c:805:2: note: in expansion of macro 'BUILD_BUG_ON'
     BUILD_BUG_ON(__fix_to_virt(__end_of_fixed_addresses) <= VMALLOC_END);

vim +/__compiletime_assert_805 +518 include/linux/compiler.h

9a8ab1c3 Daniel Santos  2013-02-21  512   *
9a8ab1c3 Daniel Santos  2013-02-21  513   * In tradition of POSIX assert, this macro will break the build if the
9a8ab1c3 Daniel Santos  2013-02-21  514   * supplied condition is *false*, emitting the supplied error message if the
9a8ab1c3 Daniel Santos  2013-02-21  515   * compiler has support to do so.
9a8ab1c3 Daniel Santos  2013-02-21  516   */
9a8ab1c3 Daniel Santos  2013-02-21  517  #define compiletime_assert(condition, msg) \
9a8ab1c3 Daniel Santos  2013-02-21 @518  	_compiletime_assert(condition, msg, __compiletime_assert_, __LINE__)
9a8ab1c3 Daniel Santos  2013-02-21  519  
47933ad4 Peter Zijlstra 2013-11-06  520  #define compiletime_assert_atomic_type(t)				\
47933ad4 Peter Zijlstra 2013-11-06  521  	compiletime_assert(__native_word(t),				\

:::::: The code at line 518 was first introduced by commit
:::::: 9a8ab1c39970a4938a72d94e6fd13be88a797590 bug.h, compiler.h: introduce compiletime_assert & BUILD_BUG_ON_MSG

:::::: TO: Daniel Santos <>
:::::: CC: Linus Torvalds <>

0-DAY kernel test infrastructure                Open Source Technology Center                   Intel Corporation

Download attachment ".config.gz" of type "application/gzip" (22314 bytes)

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