Since Linux 2.6.17, clone and fork syscalls return ERESTARTNOINTR when interrupted by a signal before newly created process is added to its process group. This error code can only be seen by ptrace at syscall exit tracing. The information was obtained from kernel source code: http://bit.ly/24xdofn Signed-off-by: Nikola Forró <nforro@xxxxxxxxxx> --- man2/clone.2 | 4 ++++ man2/fork.2 | 4 ++++ 2 files changed, 8 insertions(+) diff --git a/man2/clone.2 b/man2/clone.2 index 8373700..ab1e58d 100644 --- a/man2/clone.2 +++ b/man2/clone.2 @@ -1013,6 +1013,10 @@ and the call would cause the limit on the number of nested user namespaces to be exceeded. See .BR user_namespaces (7). +.TP +.BR ERESTARTNOINTR " (since Linux 2.6.17)" +System call was interrupted by a signal and will be restarted. +(This can be seen only during a trace.) .SH VERSIONS There is no entry for .BR clone () diff --git a/man2/fork.2 b/man2/fork.2 index 559a47f..3accc8c 100644 --- a/man2/fork.2 +++ b/man2/fork.2 @@ -242,6 +242,10 @@ failed to allocate the necessary kernel structures because memory is tight. is not supported on this platform (for example, .\" e.g., arm (optionally), blackfin, c6x, frv, h8300, microblaze, xtensa hardware without a Memory-Management Unit). +.TP +.BR ERESTARTNOINTR " (since Linux 2.6.17)" +System call was interrupted by a signal and will be restarted. +(This can be seen only during a trace.) .SH CONFORMING TO POSIX.1-2001, POSIX.1-2008, SVr4, 4.3BSD. .SH NOTES -- 2.4.11 -- To unsubscribe from this list: send the line "unsubscribe linux-man" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
