56 lines
1.8 KiB
Diff
56 lines
1.8 KiB
Diff
From 10e46057dd8de9042ae216c50f531c5fc94054f9 Mon Sep 17 00:00:00 2001
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From: =?UTF-8?q?Nikola=20Forr=C3=B3?= <nforro@redhat.com>
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Date: Wed, 4 May 2016 10:55:56 +0200
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Subject: [PATCH] clone.2, fork.2: Document ERESTARTNOINTR error code
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MIME-Version: 1.0
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: 8bit
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Since Linux 2.6.17, clone and fork syscalls return ERESTARTNOINTR
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when interrupted by a signal before newly created process is added
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to its process group.
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This error code can only be seen by ptrace at syscall exit tracing.
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The information was obtained from kernel source code:
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http://bit.ly/24xdofn
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Signed-off-by: Nikola Forró <nforro@redhat.com>
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---
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man2/clone.2 | 4 ++++
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man2/fork.2 | 4 ++++
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2 files changed, 8 insertions(+)
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diff --git a/man2/clone.2 b/man2/clone.2
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index 8373700..ab1e58d 100644
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--- a/man2/clone.2
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+++ b/man2/clone.2
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@@ -1013,6 +1013,10 @@ and the call would cause the limit on the number of
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nested user namespaces to be exceeded.
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See
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.BR user_namespaces (7).
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+.TP
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+.BR ERESTARTNOINTR " (since Linux 2.6.17)"
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+System call was interrupted by a signal and will be restarted.
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+(This can be seen only during a trace.)
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.SH VERSIONS
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There is no entry for
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.BR clone ()
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diff --git a/man2/fork.2 b/man2/fork.2
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index 559a47f..3accc8c 100644
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--- a/man2/fork.2
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+++ b/man2/fork.2
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@@ -242,6 +242,10 @@ failed to allocate the necessary kernel structures because memory is tight.
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is not supported on this platform (for example,
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.\" e.g., arm (optionally), blackfin, c6x, frv, h8300, microblaze, xtensa
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hardware without a Memory-Management Unit).
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+.TP
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+.BR ERESTARTNOINTR " (since Linux 2.6.17)"
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+System call was interrupted by a signal and will be restarted.
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+(This can be seen only during a trace.)
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.SH CONFORMING TO
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POSIX.1-2001, POSIX.1-2008, SVr4, 4.3BSD.
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.SH NOTES
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--
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2.7.4
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