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New: get_mempolicy(2) inconsistent with numaif.h

Bug 97051 bugzilla-daemon-590EEB7GvNiWaY/[email protected] 1 participant 2 messages Apr 21, 2015 – May 5, 2015 1 message not in the archive Man-pages: manual pages for Linux -- Sections 2, 3, 4, 5, and 7

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https://bugzilla.kernel.org/show_bug.cgi?id=97051

Bug ID: 97051
Summary: get_mempolicy(2) inconsistent with numaif.h
Product: Documentation
Version: unspecified
Hardware: All
OS: Linux
Status: NEW
Severity: normal
Priority: P1
Component: man-pages
Assignee: documentation_man-pages-ztI5WcYan/[email protected]
Reporter: nyh-TS7m/[email protected]
Regression: No

get_mempolicy(2)'s synopsis is:

#include <numaif.h>

int get_mempolicy(int *mode, unsigned long *nodemask,
unsigned long maxnode, unsigned long addr, unsigned long flags);

However, the actual prototype in numif.h (and implementation in numactl's syscall.c) is subtly different:

long get_mempolicy(int *policy, const unsigned long *nmask,
unsigned long maxnode, void *addr, int flags);

The funny thing is, that prototype is isn't quite right either - it pretends nmask is a const pointer, but it most definitely isn't, and the data pointed by it get written to. But that isn't a man-page bug.

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A message that is not in the archive (sent off-list or not yet received): bug-97051-11311-3bo0kxnWaOQUvHkbgXJLS5sdmw4N0Rt+2LY78lusg7I@public.gmane.org/

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[Bug 97051] get_mempolicy(2) inconsistent with numaif.h

https://bugzilla.kernel.org/show_bug.cgi?id=97051

--- Comment #1 from Michael Kerrisk <[email protected]> --- Andi, could you comment on this bug?

Thanks,

Michael

Quoted 37 lines · On 22 April 2015 at 00:28, <bugzilla-daemon-590EEB7GvNiWaY/ihj7yzEB+6BGkLq7r@p…

https://bugzilla.kernel.org/show_bug.cgi?id=97051

Bug ID: 97051
Summary: get_mempolicy(2) inconsistent with numaif.h
Product: Documentation
Version: unspecified
Hardware: All
OS: Linux
Status: NEW
Severity: normal
Priority: P1
Component: man-pages
Assignee: documentation_man-pages-ztI5WcYan/[email protected]
Reporter: nyh-TS7m/[email protected]
Regression: No

get_mempolicy(2)'s synopsis is:

#include <numaif.h>

int get_mempolicy(int *mode, unsigned long *nodemask,
unsigned long maxnode, unsigned long addr, unsigned long flags);

However, the actual prototype in numif.h (and implementation in numactl's syscall.c) is subtly different:

long get_mempolicy(int *policy, const unsigned long *nmask,
unsigned long maxnode, void *addr, int flags);

The funny thing is, that prototype is isn't quite right either - it pretends nmask is a const pointer, but it most definitely isn't, and the data pointed by it get written to. But that isn't a man-page bug.

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You are receiving this mail because:
You are watching the assignee of the bug.

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