[squeak-dev] FileDoesNotExistException on existing changes file during trunk update

Bernhard Pieber bernhard at pieber.com
Sun Aug 31 11:13:23 UTC 2014

Hi Nicolas,

Thanks for your answer! See below.

Am 31.08.2014 um 09:50 schrieb Nicolas Cellier <nicolas.cellier.aka.nice at gmail.com>:
> 2014-08-30 15:31 GMT+02:00 Bernhard Pieber <bernhard at pieber.com>:
>> Dear fellow Squeakers,
>> I continued my quest to create a current clean 4.6 trunk imge and still run into problems.
>> I am on OS X 10.9.4. I use Eliot's latest Cog.app and the 4.5 release image (Squeak4.5-13680.image) from the FTP server. See here [1] for the bash commands I use to set up my starting point.
>> Then I execute the following script in a workspace:
>> MCMcmUpdater
>>         defaultUpdateURL: 'http://source.squeak.org/trunk';
>>         updateFromServer.
>> During processing of update-eem.287.mcm a popup menu appears saying that the Squeak4.5-13680.changes file does not exist. This is incorrect because the file exists. When I choose Debug I get FileDoesNotExistException. See the attached PNG and SqueakDebug.log.
>> I would be interested if others run into the same problem.
> It happens to me from time to time.
It's a consolation to know that I am not the only one seeing this. With the process I follow I have it every time, i.e. I can reliably reproduce it.

> I suspect that there are two many files opened before the reclamation facility has a chance to work.
> I suspect the read-only copy of change file to open those files.
I am not sure I understand your last sentence. Could you please elaborate?

> I you open the debugger and restart from the right place (?), the update correctly resumes (but it's not very automated...).
Right. Even if I don't debug but just choose the existing changes file in the popup menu the trunk update resumes and finishes.

However, there are several other problems:
1. The Environments package is dirty and has two ancestors (nice.47, cmm.51).
2. There are many corrupt files in the package-cache.
3. I get a strange variant of the "Error: Bits size mismatch" in CompiledMethodTrailer>>#encodeUsingZip when I execute the following script to find out the corrupt Monticello files from a Squeak workspace:

MCCacheRepository default allFileNames select: [:each |
	[MCCacheRepository default versionInfoFromFileNamed: each.
	false] on: Error do: [true]].

See the attached SqueakDebug.log for details. Again, I would be very interested if others can reproduce that error.

All this makes me wonder if I can safely use that image?


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