Date: Mon, 22 Aug 2016 13:55:45 +0000 From: bugzilla-noreply@freebsd.org To: freebsd-bugs@FreeBSD.org Subject: [Bug 212048] waitpid returns uninitialized status when WNOHANG option is used Message-ID: <bug-212048-8@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=212048 Bug ID: 212048 Summary: waitpid returns uninitialized status when WNOHANG option is used Product: Base System Version: 10.3-RELEASE Hardware: Any OS: Any Status: New Severity: Affects Some People Priority: --- Component: kern Assignee: freebsd-bugs@FreeBSD.org Reporter: caseylucas@gmail.com When the WNOHANG option is used with waitpid, uninitialized memory is returned in the 'status' result if no child process is available. This was first noticed when the return value from Python os.waitpid was trashed / unreliable. See 'status' variable in kern_exit.c::sys_wait4 Demonstration of problem: https://gist.github.com/caseylucas/df2eea85741ea892328c3f8c558cfa75 Stackoverflow reference: http://stackoverflow.com/questions/38984449/is-status-value-from-os-waitpid-unreliable-when-os-wnohang-is-used-under-freebsd -- You are receiving this mail because: You are the assignee for the bug.help
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