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[SR-6967] Crash when starting already canceled Foundation.Operation on Linux #663

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swift-ci opened this issue Feb 9, 2018 · 2 comments
Closed

[SR-6967] Crash when starting already canceled Foundation.Operation on Linux #663

swift-ci opened this issue Feb 9, 2018 · 2 comments
Labels
bug Foundation libdispatch RunTimeCrash

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@swift-ci
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swift-ci commented Feb 9, 2018

Previous ID SR-6967
Radar None
Original Reporter artem (JIRA User)
Type Bug
Status Resolved
Resolution Done
Environment

Swift version 4.0.3 (swift-4.0.3-RELEASE)

Ubuntu 16.04

Additional Detail from JIRA
Votes 0
Component/s Foundation, libdispatch
Labels Bug, RunTimeCrash
Assignee None
Priority Medium

md5: 89aa4b6093114ef24e8777b5984e1b4d

Issue Description:

import Foundation

let operation = Operation()
operation.cancel()
operation.start()

Enter LLDB commands to investigate (type :help for assistance.)
Process 30622 stopped
* thread #​1, name = 'repl_swift', stop reason = signal SIGILL: illegal instruction operand
frame #​0: 0x00007ffff7f19e70 libdispatch.so`dispatch_group_leave + 32
libdispatch.so`dispatch_group_leave:
-> 0x7ffff7f19e70 <+32>: ud2 
0x7ffff7f19e72: nopw %cs:(%rax,%rax)
libdispatch.so`_dispatch_group_wake:
0x7ffff7f19e80 <+0>: pushq %rbp
0x7ffff7f19e81 <+1>: pushq %r15
Target 0: (repl_swift) stopped.
@belkadan
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belkadan commented Feb 9, 2018

@millenomi, possible good StarterBug?

@spevans
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spevans commented Jan 29, 2020

This was fixed in 4.1 by this PR: apple/swift-corelibs-foundation#1229

@swift-ci swift-ci transferred this issue from apple/swift-issues Apr 25, 2022
@shahmishal shahmishal transferred this issue from apple/swift May 5, 2022
This issue was closed.
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bug Foundation libdispatch RunTimeCrash
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@belkadan @spevans @swift-ci