On Fri, Apr 26, 2013 at 10:22 AM, Eliot Miranda <eliot.miranda at gmail.com>wrote:

>
>
> On Fri, Apr 26, 2013 at 9:25 AM, Chris Muller <asqueaker at gmail.com> wrote:
>
>> Frank are you saying that, under Ubuntu 13.04, after writing to a
>> particular place in a file, if you subsequently go back and _read_
>> from that place, even using the same ReadWriteStream instance, that it
>> will not read back in what was just written until a #flush occurs?
>>
>> Hopefully that is not the case!
>>
>
> If it is, it is an ubuntu bug and not one we should work around, no?
>

If it is a write/read through the same file pointer, that is.  If through
two separate file pointers then a flush is needed after the write.


>
>
>> On Fri, Apr 26, 2013 at 5:17 AM, Frank Shearar <frank.shearar at gmail.com>
>> wrote:
>> > On 25 April 2013 15:35, Frank Shearar <frank.shearar at gmail.com> wrote:
>> >> On 25 April 2013 13:54, David T. Lewis <lewis at mail.msen.com> wrote:
>> >>>
>> >>> On Thu, Apr 25, 2013 at 02:18:22PM +0200, Bert Freudenberg wrote:
>> >>>>
>> >>>> This didn't sound like a VM problem at first, but according to the
>> discussion it is:
>> >>>>
>> >>>> https://bugzilla.redhat.com/show_bug.cgi?id=956376
>> >>>>
>> >>>> Any idea?
>> >>>>
>> >>>
>> >>> On my 64-bit Linux with an interpreter VM compiled in 64-bit, and
>> using
>> >>> Squeak - no problem. With a 32-bit interpreter - no problem. With Cog
>> -
>> >>> again, no problem.
>> >>>
>> >>> I edited the class comment for class Array in each case.
>> >>>
>> >>> Dave
>> >>
>> >> "Error: RemoteString past end of file" can indicate a broken/damages
>> >> changes file.
>> >>
>> >> It does when I get the error, at least. Usually that happens when I
>> >> have to hard-kill an image that's stored state in the changes file.
>> >> Restarting the image means there's a mismatch somehow in the state
>> >> between the image and the changes file. Once you get one of these
>> >> you're nearly completely hosed: you can't file things out, for
>> >> instance.
>> >
>> > For those not following the Pharo list, it looks like the root cause
>> > is that the glibc in Ubuntu 13.04 doesn't immediately write new
>> > content out to the file. Thus you can "write" to the file, and then
>> > read from the file, only your RemoteString starts off the end of the
>> > file. The fix is to make WriteStream >> #nextPutChunk: call "self
>> > flush". I've pushed a 4.5 fix to trunk, but have not yet done the same
>> > for the 4.4 and 4.3 update streams.
>> >
>> > frank
>> >
>>
>>
>
>
> --
> best,
> Eliot
>



-- 
best,
Eliot
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