Hi all,
After merging the akpm-current tree, today's linux-next build (arm
multi_v7_defconfig) failed like this:
In file included from include/linux/kernel.h:11,
from kernel/events/uprobes.c:12:
kernel/events/uprobes.c: In function 'uprobe_write_opcode':
include/linux/compiler.h:350:38: error: call to '__compiletime_assert_557' declared with attribute error: BUILD_BUG failed
_compiletime_assert(condition, msg, __compiletime_assert_, __LINE__)
^
include/linux/compiler.h:331:4: note: in definition of macro '__compiletime_assert'
prefix ## suffix(); \
^~~~~~
include/linux/compiler.h:350:2: note: in expansion of macro '_compiletime_assert'
_compiletime_assert(condition, msg, __compiletime_assert_, __LINE__)
^~~~~~~~~~~~~~~~~~~
include/linux/build_bug.h:39:37: note: in expansion of macro 'compiletime_assert'
#define BUILD_BUG_ON_MSG(cond, msg) compiletime_assert(!(cond), msg)
^~~~~~~~~~~~~~~~~~
include/linux/build_bug.h:59:21: note: in expansion of macro 'BUILD_BUG_ON_MSG'
#define BUILD_BUG() BUILD_BUG_ON_MSG(1, "BUILD_BUG failed")
^~~~~~~~~~~~~~~~
include/linux/huge_mm.h:272:27: note: in expansion of macro 'BUILD_BUG'
#define HPAGE_PMD_MASK ({ BUILD_BUG(); 0; })
^~~~~~~~~
kernel/events/uprobes.c:557:39: note: in expansion of macro 'HPAGE_PMD_MASK'
collapse_pte_mapped_thp(mm, vaddr & HPAGE_PMD_MASK);
^~~~~~~~~~~~~~
Caused by commit
9cc0b998b380 ("uprobe: collapse THP pmd after removing all uprobes")
I have reverted that commit for today.
--
Cheers,
Stephen Rothwell
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