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The Basics
Id: 71722
Status: open
Priority: 0/
Queue: CPAN
People
Owner: Nobody in particular
Requestors: SREZIC [...] cpan.org
Cc:
AdminCc:
Bug Information
Severity: Unimportant
Broken in:
  • 1.9600
  • 2.05
Fixed in: (no value)

History Show all quoted text
  Sun Oct 16 10:54:41 2011 SREZIC [...] cpan.org - Ticket created
Subject: Locking issue on Windows
The following message appears if trying to start a CPAN shell while another is already running: C:>cpan CPAN.pm panic: Found invalid lockfile 'C:\strawberry\cpan\.lock', please remove. Cannot proceed. This is different from Unix behaviour, where the user may bypass the locking. Also the error message is misleading --- I don't think that there's a problem with the lockfile here. (This is on a Windows XP system running Strawberry Perl 5.12.3.0) Regards, Slaven
  Fri Mar 13 03:52:07 2015 SREZIC [...] cpan.org - Correspondence added
On 2011-10-16 10:54:41, SREZIC wrote: Show quoted text
> The following message appears if trying to start a CPAN shell while > another is already running: > > C:>cpan > CPAN.pm panic: Found invalid lockfile 'C:\strawberry\cpan\.lock', please > remove. > Cannot proceed. > > This is different from Unix behaviour, where the user may bypass the > locking. > > Also the error message is misleading --- I don't think that there's a > problem with the lockfile here. > > (This is on a Windows XP system running Strawberry Perl 5.12.3.0) >
This is still an issue on recent systems (Strawberry Perl 5.20.1.x, CPAN 2.05).
  Sat Mar 14 06:07:30 2015 SREZIC [...] cpan.org - Broken in 2.05 added
  Sun Mar 29 15:12:31 2015 andreas.koenig.7os6VVqR [...] franz.ak.mind.de - Correspondence added
Subject: Re: [rt.cpan.org #71722] Locking issue on Windows
Date: Sun, 29 Mar 2015 21:12:09 +0200
To: bug-CPAN [...] rt.cpan.org
From: Andreas Koenig <andreas.koenig.7os6VVqR [...] franz.ak.mind.de>
The problem with the lockfile was that it could not be read. Mandatory locking on Windows gets in the way. This is what I got from 'type .lock': "The process cannot access the file because another process has locked a portion of the file." Perl can open and close the lockfile just fine but when it tries to read the content it gets undef for each line and not the above error message. I have checked in a workaround as c8b50c2 that seems to work. I have tried it with strawberry perl 5.20.2.1. Thanks for the report! -- andreas
  Sun Mar 29 15:12:32 2015 The RT System itself - Status changed from 'new' to 'open'