1c173eb337
clone.2: Rework the discussion of the historical CLONE_PID for clarity
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Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2017-10-18 08:45:32 +02:00
2551f80148
clone.2: ffix
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Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2017-10-18 08:45:32 +02:00
e5f3df4833
clone.2: Remove a redundant paragraph
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Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2017-10-18 08:45:32 +02:00
7495cbc7b3
clone.2: Eliminate some redundant phrasing in discussion of "fn()"
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Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2017-10-18 08:45:32 +02:00
4ba17a6deb
clone.2: Minor wording fixes
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Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2017-10-18 08:45:32 +02:00
1c6ebc4b4c
clone.2: Warn that the clone() wrapper modifies child_stack in the parent
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Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2017-10-17 22:24:49 +02:00
1874193ebf
clone.2: Add NOTES heading
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Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2017-10-17 22:17:26 +02:00
d35f5c3402
clone.2: Note that child_stack can be NULL when using the raw system call
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Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2017-10-17 15:52:54 +02:00
161fce30ef
clone.2: Minor wording fix (in preparation for subsequent patch)
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Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2017-10-17 15:51:43 +02:00
35bf8cb47f
clone.2: tfix
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Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2017-10-17 14:47:11 +02:00
ed44de1f5e
ld.so.8: Simplify language around conferring capabilities
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The statement "conferring permitted or effective capabilities"
to the process is somewhat redundant. Binaries with capabilities
confer capabilities only to those process capability sets, so it's
simpler to just say"confers capabilities to the process".
Reported-by: Yubin Ruan <ablacktshirt@gmail.com>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2017-10-13 12:57:09 +02:00
6e3b05feb5
core.5: ffix
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Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2017-10-12 21:08:37 +02:00
7629685cc3
core.5: tfix
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Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2017-10-12 21:08:37 +02:00
03c871367c
core.5: Adds some notes on systemd and core dumps
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Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2017-10-12 21:08:37 +02:00
6c3d8859e6
core.5: Dumps are not produced if core_pattern is empty and core_uses_pid is 0
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Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2017-10-11 22:00:09 +02:00
cb1b16309e
core.5: SEE ALSO: add coredumpctl(1)
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Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2017-10-11 18:04:42 +02:00
97839a765d
core.5: RLIMIT_CORE is not enforced when piping core dump to a program
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Reported-by: Per Böhlin <Per.Bohlin@zenterio.com>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2017-10-09 22:25:05 +02:00
dca5d444b3
madvise.2: Note fork() and execve() semantics for wipe-on-fork setting
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Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2017-10-09 21:43:00 +02:00
292e6c071c
fork.2: The MADV_WIPEONFORK setting is preserved in child of fork()
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Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2017-10-09 21:26:53 +02:00
64f89da83f
fork.2: Minor reworking of MADV_WIPEONFORK text
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The wipe-on-fork setting is specified on address ranges,
not mappings.
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2017-10-09 21:24:06 +02:00
da06433e6d
getrlimit.2: Make it clear RLIMIT_NPROC is a limit on current number of processes
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https://twitter.com/silentbicycle/status/893849097903505409
Reported-by: Scott Vokes <vokes.s@gmail.com>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2017-10-09 15:48:47 +02:00
63345f2229
getrlimit.2: Minor rewording
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Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2017-10-09 15:35:47 +02:00
86be2c9292
proc.5: tfix
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Remove duplicated word.
Signed-off-by: Jakub Wilk <jwilk@jwilk.net>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2017-10-09 15:24:20 +02:00
b8dd62acb3
epoll.7: Note existence of kcmp() KCMP_EPOLL_TFD operation
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Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2017-10-09 11:45:13 +02:00
fe03cbd88e
shmop.2: Note that return value of shmat() is page-aligned
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At the current man page for shmat(2)[1], there is no mentioning
whether the returned memory address of shmat(2) will be page size
aligned or not. As that is quite important to many applications(e.g.,
those that use locks heavily and would like to avoid some locks by
some atomic guarantees provided by the CPU), it would be great to
specify that for Linux.
I walked down the current implementation of shmat(2) in the latest
kernel src and found that shmat(2) does return a page size aligned
memory address:
SYSCALL_DEFINE3(shmat, int, shmid, char __user *, shmaddr, int, shmflg)
-> do_shmat(...)
-> do_mmap_pgoff(...)
-> do_mmap(...)
-> get_unmapped_area(...)
-> get_area(...) -> offset_in_page(addr)
there is a `offset_in_page(addr)' assertion at the end and if that is
true a -EINVAL would be returned, by which we can be sure that
shmat(2) will return a page size aligned memory address on success[2].
[1]: http://man7.org/linux/man-pages/man2/shmat.2.html
[2]: there is also a `offset_in_page(2)' in get_unmapped_area(...),
but that doesn't lead to -EINVAL...I am not sure whether the logic of
that code is right.
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2017-10-09 10:26:10 +02:00
b739c378ff
shmop.2: Minor wording fix
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Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2017-10-08 23:36:56 +02:00
98f24fc65c
abort.3: SEE ALSO: add assert(3)
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Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2017-10-08 16:19:58 +02:00
46dc471b8d
abort.3: Starting with glibc 2.27, abort() does not attempt to flush streams
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Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2017-10-08 16:19:47 +02:00
be98c938b5
sigaction.2: Mention that libc sets the act.sa_restorer field
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Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2017-10-08 14:48:40 +02:00
3ddb841ebb
sigaction.2: wfix
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Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2017-10-08 14:48:40 +02:00
7276186d6c
sigaction.2: wfix
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Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2017-10-08 14:48:40 +02:00
89559e3c1c
sigreturn.2: Minor fixes to description of sa_restorer field
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Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2017-10-08 14:48:34 +02:00
cc158fa3ac
sigreturn.2: Minor wording fix
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Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2017-10-08 14:30:05 +02:00
d03e0ad324
sigreturn.2: glibc has a simple wrapper for sigreturn() that returns ENOSYS
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Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2017-10-08 13:05:56 +02:00
8a3f19c369
pow10.3: tfix
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Signed-off-by: Fangrui Song <i@maskray.me>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2017-10-08 10:52:25 +02:00
56f3b63bea
sigaction.2: Rework discussion of SA_SIGINFO handler arguments
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Expand and rework the text a little, in particular adding
a reference to sigreturn(2) as a source of further
information about the ucontext argument.
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2017-10-08 10:49:36 +02:00
dea3ec0c24
sigreturn.2: Make it a little clearer that a stack frame is created by the kernel
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Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2017-10-08 10:00:26 +02:00
e8b9e9a236
sysfs.5: tfix
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Signed-off-by: Jakub Wilk <jwilk@jwilk.net>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2017-10-05 20:37:09 +02:00
e1846db58e
statfs.2: tfix
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Signed-off-by: Jakub Wilk <jwilk@jwilk.net>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2017-10-05 20:36:40 +02:00
e40be343f7
mallinfo.3: Fix the example
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Remove reference to non-standard "tlpi_hdr.h" and replace calls to
functions that were declared in this header.
Signed-off-by: Jakub Wilk <jwilk@jwilk.net>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2017-10-05 20:34:40 +02:00
ff8bc61434
flock.2: Placing an exclusive lock over NFS requires the file is open for writing
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Reported-by: Petr Uzel <petr.uzel@suse.cz>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2017-10-03 15:28:59 +02:00
3b53a603c4
flock.2: Minor wording fix
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Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2017-10-03 15:28:30 +02:00
657a14bfa0
flock.2: Break NFS details int two separate paragraphs
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Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2017-10-03 15:23:53 +02:00
50bfd0b3e2
flock.2: Move NFS details to a headed subsection
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Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2017-10-03 15:23:37 +02:00
2050975ecc
setlocale.3: The standards do not specify all of the locale categories
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Reported-by: Křištof Želechovski <giecrilj@stegny.2a.pl>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2017-10-03 15:23:37 +02:00
b0ea1ea30d
prctl.2: wfix
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Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2017-10-03 14:25:47 +02:00
4c3e123384
splice.2: Since Linux 2.6.31,'fd_in' and 'fd_out' may both refer to pipes
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Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2017-10-03 14:13:56 +02:00
bf3e64ce7c
mremap.2: Update timestamp: review of new BUGS by Michal Hocko and Mike Kravetz
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Reviewed-by: Mike Kravetz <mike.kravetz@oracle.com>
Reviewed-by: Michal Hocko <mhocko@kernel.org>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2017-09-29 23:38:35 +02:00
46f2cf80f4
pthread_yield.3: pthread_yield() is intended for use with real-time scheduling policies
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Reported-by: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2017-09-29 22:46:28 +02:00
9ce1d9202d
sched_yield.2: sched_yield() is intended for use with real-time scheduling policies
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Reported-by: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2017-09-29 22:43:30 +02:00
Michael Kerrisk