From: Dmitry Bely <dmitry.bely@gmail.com>
To: rixed@happyleptic.org
Cc: caml-list@inria.fr
Subject: Re: [Caml-list] Interfacing with C: bad practice
Date: Tue, 16 Aug 2011 13:53:43 +0400 [thread overview]
Message-ID: <CAMT7qiQRDing=NBNzar+kEzbpDj9e5=v_EOe7+4GdcMKph=Njw@mail.gmail.com> (raw)
In-Reply-To: <20110816094636.GA6227@ccellier.rd.securactive.lan>
On Tue, Aug 16, 2011 at 1:46 PM, <rixed@happyleptic.org> wrote:
> -[ Tue, Aug 16, 2011 at 11:43:24AM +0300, Török Edwin ]----
>> 'list' should be reachable via caml_local_roots, so if it really gets an invalid value
>> it sounds like a bug to me.
>
> list may not be garbage collected (since it is indeed registered as the
> root), but it may be moved arround (ie promoted to major heap).
> The address of list would be fixed in the local variable (the root) but
> not the transiant copy on the stack.
> Maybe that's the actual problem ?
Exactly. List is moved but its stack copy (wrp_ml_cons 2nd parameter)
is not updated and holds an old address.
- Dmitry Bely
next prev parent reply other threads:[~2011-08-16 9:53 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-08-16 7:37 Dmitry Bely
2011-08-16 8:04 ` Török Edwin
2011-08-16 8:25 ` Dmitry Bely
2011-08-16 8:43 ` Török Edwin
2011-08-16 9:46 ` rixed
2011-08-16 9:53 ` Dmitry Bely [this message]
2011-08-16 10:17 ` Török Edwin
2011-08-16 11:04 ` rixed
[not found] ` <20110816.105738.246515733851238101.Christophe.Troestler@umons.ac.be>
2011-08-16 9:21 ` Dmitry Bely
2011-08-16 10:39 ` Mauricio Fernandez
2011-08-16 14:27 ` John Carr
2011-08-16 12:28 ` [Caml-list] " Dmitry Bely
2011-08-16 15:25 ` [Caml-list] " Richard W.M. Jones
2011-08-16 15:51 ` rixed
2011-08-16 16:00 ` Will M. Farr
2011-08-16 16:10 ` Richard W.M. Jones
2011-08-16 16:17 ` Richard W.M. Jones
2011-08-16 16:18 ` Dmitry Bely
2011-08-16 16:22 ` Richard W.M. Jones
2011-08-16 16:27 ` Richard W.M. Jones
2011-08-16 16:30 ` malc
2011-08-16 16:34 ` Török Edwin
2011-08-16 16:47 ` Richard W.M. Jones
2011-08-16 16:55 ` [Caml-list] " Jeffrey Scofield
2011-08-16 17:08 ` Will M. Farr
2011-08-16 19:46 ` Gerd Stolpmann
2011-08-16 20:18 ` Jeffrey Scofield
2011-08-16 17:08 ` [Caml-list] " rixed
2011-08-16 16:06 ` John Carr
2011-08-16 16:14 ` Wojciech Meyer
2011-08-16 16:13 ` Dmitry Bely
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