[SR-11699] Calling closeFile() on standardInput Pipe before calling Process.run() aborts with EBADF on Linux

[swift-ci]

Previous ID	SR-11699
Radar	None
Original Reporter	Kaiede (JIRA User)
Type	Bug
Status	Resolved
Resolution	Done

Attachment: Download

Environment

First hit on Raspberry Pi w/Raspbian Buster - Swift 5.1.1 RELEASE

Official Swift Docker Container for Linux Also Reproduces It:

• root@5b62e5c1ca9a:/home/PipeTest# swift --version

• Swift version 5.1.1 (swift-5.1.1-RELEASE)

• Target: x86_64-unknown-linux-gnu

Additional Detail from JIRA

Votes	0
Component/s	Foundation
Labels	Bug
Assignee	@spevans
Priority	Medium

md5: 6577ae0c207d9cfae623bb7c589a5e6e

relates to:

• SR-10639 Connecting two Processes with Pipe crashes

Issue Description:

Repro Steps:

• Unzip PipeTest.zip

• cd into directory

• run 'swift test'

Expected:

• All 4 Tests Pass

Actual

• testProcess_CrashOnLinux will crash on Linux with EBADF

• Fatal error: POSIX command failed with error: 9 – EBADF: file /home/buildSwiftOnARM/swift-corelibs-foundation/Foundation/Process.swift, line 825

Compare testProcess_CrashOnLinux with testProcess_WorksOnLinux2. These are functionally the same test, but they close the file handle at different times. Apparently closing the handle before process.run() is called will cause the EBADF on Linux, but not macOS.

[spevans]

#2553

[beccadax]

The PR has been merged, so I'm marking this as resolved.