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Unexpected EINTR errno, etc. on tmpfs and 9p file systems #21080

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DartBot opened this issue Sep 24, 2014 · 5 comments
Open

Unexpected EINTR errno, etc. on tmpfs and 9p file systems #21080

DartBot opened this issue Sep 24, 2014 · 5 comments
Labels
area-core-library SDK core library issues (core, async, ...); use area-vm or area-web for platform specific libraries. library-io type-bug Incorrect behavior (everything from a crash to more subtle misbehavior)
Milestone
1.7

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@DartBot
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DartBot commented Sep 24, 2014

This issue was originally filed by rha...@allogy.com

What steps will reproduce the problem?

  1. copy a dart project to /tmp on fedora 20
  2. "cd" into the project
  3. execute "pub get"

What is the expected output?

Successful retrieval of dependencies

What do you see instead?

Varies:
runtime/bin/file_linux.cc:125: error: Unexpected EINTR errno
runtime/bin/file_linux.cc:162: error: Unexpected EINTR errno
runtime/bin/file_linux.cc:115: error: Unexpected EINTR errno
runtime/bin/directory_linux.cc:319: error: Unexpected EINTR errno

..and rarely (<10%) it actually finishes successfully.

What version of the product are you using?

1.6.0

On what operating system?

Fedora 20
Kernel @­ 3.16.2 & 3.16.3

What browser (if applicable)?

N/A

Please provide any additional information below.

The system in question is a virtual machine running under KVM of the same distribution/version (fedora 20).

As I understand it, EINTR may indicate that the process is receiving a signal, so this might be masking a different issue (though, there is no other interesting diagnostic output).
@DartBot
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DartBot commented Sep 24, 2014

This comment was originally written by rha...@allogy.com

Possibly related to #­16927.

@sgjesse
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sgjesse commented Sep 25, 2014

Our assumption on stat64 and lstat64 never returning EINTR was wrong. Causing VM termination in this environment.

Set owner to @sgjesse.
Added this to the 1.7 milestone.
Removed Priority-Unassigned label.
Added Priority-Critical, Started labels.

@sgjesse
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sgjesse commented Sep 25, 2014

Fixed in https://code.google.com/p/dart/source/detail?r=40671.

cc @iposva-google.

@sgjesse
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sgjesse commented Sep 25, 2014

Added Fixed label.

@DartBot DartBot added Type-Defect P0 A serious issue requiring immediate resolution labels Sep 25, 2014
@DartBot DartBot added this to the 1.7 milestone Sep 25, 2014
@lukechurch
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I've just had this reproduce on Dart VM version: 1.10.1 (Mon May 11 11:03:28 2015) on "macos_x64"

"/Volumes/data/b/build/slave/dart-editor-mac-stable/build/dart/runtime/bin/directory_macos.cc:157: error: Unexpected EINTR errno"

The code is doing a recursive file list on a root of a corpus, so it will contain a very large number of files.

@lukechurch lukechurch reopened this Jun 13, 2015
@floitschG floitschG added area-core-library SDK core library issues (core, async, ...); use area-vm or area-web for platform specific libraries. library-io and removed Area-NONE labels Jun 24, 2015
@mit-mit mit-mit removed the Fixed label Sep 2, 2015
@kevmoo kevmoo added type-bug Incorrect behavior (everything from a crash to more subtle misbehavior) and removed Type-Defect labels Mar 1, 2016
@sgjesse sgjesse removed their assignment Jun 14, 2016
@mit-mit mit-mit removed the P0 A serious issue requiring immediate resolution label Aug 10, 2016
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