[Vm-dev] Cog issue? Re: [Pharo-project] StandardFileStream size
limit?
Bert Freudenberg
bert at freudenbergs.de
Thu Jun 14 09:17:40 UTC 2012
On 2012-06-14, at 00:09, David T. Lewis wrote:
>
> On Wed, Jun 13, 2012 at 03:00:29PM -0700, Eliot Miranda wrote:
>>
>> On Wed, Jun 13, 2012 at 7:40 AM, David T. Lewis <lewis at mail.msen.com> wrote:
>>
>>>
>>> On Wed, Jun 13, 2012 at 04:08:14PM +0200, G?ran Krampe wrote:
>>>>
>>>> Hey!
>>>>
>>>> Ok, so the plot thickens:
>>>>
>>>> If I run this in a "oneclick 1.4" I will get a file write error on 2Gb:
>>>>
>>>> | f b |
>>>> f := StandardFileStream newFileNamed: 'test'.
>>>> b := ByteArray new: 1024*1024*100. "100Mb"
>>>> [30 timesRepeat: [f nextPutAll: b]] ensure: [f close] "3Gb"
>>>>
>>>>
>>>> ...but it worked fine using a self built "standard" VM from squeakvm.org
>>>> (4.4.7.2357)! Same image btw.
>>>>
>>>> Now, does it work with the bleeding edge Cog? Tried r2556 and nope, same
>>>> problem.
>>>>
>>>> So I "guess" it is a Cog thing? I haven't tried building Cog from source.
>>>>
>>>> regards, G?ran
>>>
>>> Background on large file support, see especially Bert's summary:
>>>
>>>
>>> http://forum.world.st/Re-squeak-dev-filesize-reporting-0-for-very-large-files-td4483646.html
>>> http://bugs.squeak.org/view.php?id=7522
>>> http://www.suse.de/~aj/linux_lfs.html
>>>
>>> I'm not sure if the Cog VMs are being compiled with the the LFS option,
>>> although
>>> I expect that if you compile it yourself with the build options that Bert
>>> explains,
>>> then it should start working.
>>>
>>
>> I just committed the necessary changes for my branch. Will rebuild soon.
>> G?ran, if you're in a hurry build your own? You'd need to be in
>> http://www.squeakvm.org/svn/squeak/branches/Cog/unixbuild/bld and run ./mvm.
>> --
>> best,
>> Eliot
>
> Excellent :)
>
> Dave
I wonder why the interpreter VM works though - I didn't see any of those flags in its build settings. Or maybe some Linuxes enable large files by default?
- Bert -
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