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World: r3wp

[RAMBO] The REBOL bug and enhancement database

Oldes
17-May-2007
[2922x2]
anyway.... using   make block! []  is quite useless
allocating 100000 elements for each block will slow down performance 
too much I guess
Volker
17-May-2007
[2924]
Its only for demo, and 3:30 left. better waste memory than a contract..
Henrik
17-May-2007
[2925]
with recycle forced off, it seems to be running OK for now
Oldes
17-May-2007
[2926]
just make sure you recycle sometimes... if it's long running process
Henrik
17-May-2007
[2927x2]
it will not run more than 2-3 hours today :-)
ok, it ran perfectly. the demo was approved and the product goes 
live on Wednesday.
Sunanda
17-May-2007
[2929]
Good news!
So you have a few days to fix the recycle problem for real :-)
Henrik
17-May-2007
[2930x2]
actually I'm going to look at a printerserver, which deadlocks, if 
two people are trying to print too close to eachother.
it's quite simple, I think it was based on some cookbook code. moving 
to ports for that...
Graham
18-May-2007
[2932]
this is an annoyance ... but 'to-local-file drops the trailing slash 
for directories
Henrik
18-May-2007
[2933]
confirmed under OSX
Graham
18-May-2007
[2934]
Rambo it ??
Henrik
18-May-2007
[2935]
yep
Graham
18-May-2007
[2936]
Ok
Henrik
18-May-2007
[2937]
it's not a problem the other way around, so yes, it's inconsistent.
Graham
18-May-2007
[2938]
Done.
Sunanda
19-May-2007
[2939]
Henrik, I see regular "Crash Should not happen" on one of my scripts, 
so you are not alone.
Gabriele
19-May-2007
[2940]
anyone willing to find a way to reproduce it?
Sunanda
19-May-2007
[2941]
I don't have anything trivial that will trigger the bug. It's a big 
application that can run for a while before crashing....And the code 
has been tweaked to minimise the occurrence of the problem.
Gabriele
19-May-2007
[2942x2]
i feel the pain - same problem i had with chord.
but at this point (focused on R3) RT does not have enough resources 
to debug a big app.
Henrik
19-May-2007
[2944]
well, if it's about memory allocation and clean up, would there not 
be a way to torture it? What's the worst possible way to stress the 
garbage collector?
Gabriele
19-May-2007
[2945x2]
recycle/torture
but i guess it won't show in that case...
Henrik
19-May-2007
[2947]
something that randomly creates a large amount of blocks, inserts, 
deletes, manipulates, copies and does various other things.
Oldes
19-May-2007
[2948x5]
just found, that youtube do not respect HTTP1.0 protocol => sends 
HTTP1.1 303 response even if client require HTTP1.0 (which is Rebol 
case). As there is no response specified for 303 in Rebol's http 
handler, it can be fixed using:

use [tmp][

 tmp: select second get in system/schemes/http/handler 'open to-set-word 
 'response-actions
	if none? find tmp 303
	insert tmp reduce [303 select tmp 302]
]
whith the patch above you should be able to do for example:

trace/net on

p: open/direct http://www.youtube.com/get_video?video_id=FVbf9tOGwno&t=OEgsToPDskKR0Ng6kANs3Z4VNG81T2tZ
error? try [close p]
(Reichard: will be fixed the Altme bug which cripples text with long 
links?)
it should be easy imho
there is a silly bug in my patch, it should be:
use [tmp][

 tmp: select second get in system/schemes/http/handler 'open to-set-word 
 'response-actions
	if none? find tmp 303 [ insert tmp reduce [303 select tmp 302] ]
]
Anton
21-May-2007
[2953x3]
Oldes, note that you can do this, which looks clearer to me:

select second get in system/schemes/http/handler 'open [response-actions:]
Oldes, how do you classify this patch ? Is it simply improving Rebol's 
HTTP 1.0 scheme, or is it half-way sliding towards HTTP 1.1 ?
(ie. does the official HTTP 1.0 spec contain a 303 response ?)
(if not, then this should be called a "workaround patch" or "temporary 
migration patch")
Oldes
21-May-2007
[2956]
it's patch for buggy foreign servers... as server should not return 
HTTP1.1 response if client requires HTTP1.0
Anton
21-May-2007
[2957]
Ok, so let me restate the situation:

Due to a buggy foreign server, we are patching our HTTP scheme, which 
declares itself as HTTP1.0, with a part from HTTP1.1.
(I just want to clarify that HTTP 1.0 does not contain 303.)
Oldes
21-May-2007
[2958x3]
official HTTP1.0 spec doesn't know 303 response. And there are also 
missing 305 and 307 forward responses.
http://tools.ietf.org/html/rfc2616#section-10.3.4
Note: Many pre-HTTP/1.1 user agents do not understand the 303

      status. When interoperability with such clients is a concern, the

      302 status code may be used instead, since most user agents react
      to a 302 response as described here for 303.
Anton
21-May-2007
[2961]
Excellent, that's what I wanted to know, thankyou.
Graham
22-May-2007
[2962]
Gab .. are you submitting and then replying to your own tickets?
Pekr
22-May-2007
[2963x2]
Graham - actually it might be educative :-)
or pathological :-)
Gabriele
22-May-2007
[2965]
lol - Carl does submit tickets too. it's just to remember about the 
bugs we find.
Anton
22-May-2007
[2966x3]
Copy/part can't use a path! as its RANGE argument

>> path: 'svvc/color
== svvc/color

>> copy/part path back tail path
** Script Error: Invalid /part count: color
** Near: copy/part path back tail path
This is interesting because a path is a series, supposedly very similar 
to a block.
Same with paren!
Henrik
23-May-2007
[2969]
I'm studying memory usage and recycle for a bit. Whenever I'm adding 
a block or doing an operation, REBOL might consume small chunks of 
memory continuously, like 16-32 kb per second. whenever recycle is 
applied, it just stops. Why is that?
Gregg
24-May-2007
[2970]
I don't know, but I've seen similar allocations that continue over 
time and then seem to stop.
Henrik
24-May-2007
[2971]
I must point out that recycle specifically was turned off and so 
the number would just keep growing for hours eating up 100s of MB. 
Recycle is probably normally invoked, if you don't specify that it 
has to be turned off. The fact that the memory usage just keeps growing 
in an idle situation seems just like a memory leak to me.