public inbox for ecos-discuss@sourceware.org
 help / color / mirror / Atom feed
From: Hugo Tyson <hmt@redhat.com>
To: ecos-discuss@sourceware.cygnus.com
Subject: Re: [ECOS] Memory Problems Under eCos
Date: Thu, 30 Nov 2000 09:00:00 -0000	[thread overview]
Message-ID: <wwtpujdtnah.fsf@masala.cygnus> (raw)
In-Reply-To: <3A267AE0.8F4B2FB1@pipinghotnetworks.com>


Colin Ford <colin.ford@pipinghotnetworks.com> writes:

> I'm still finding that my GoAhead web server runs out of
> memory. I've traced it a bit further and found that when
> a request comes through memory is trying to be freed but
> the bp->flags have been corrupted and the integrity
> not valid anymore.
> 
> It seems that the following gets corrupted:
> 
>   ../sockGen.c:712
>   ../webs.c:2108
>   ../sockGen.c:716
>   ../sockGen.c:714
> 
> These then mount up by one each time and eventually
> I run out of memory.......Doh!
> 
> So I reckon that its eCos. Ho well I'll carry on looking.

I know 0.0 about the context here, but when I'm debugging and I see stuff
like that, what I do is severalfold:

a) run with asserts enabled if you're not already
b) make your stacks much bigger - eCos does NOT do stack checking
c) make your malloc heap much bigger (if that applies to your platform) -
   a failed malloc returns NULL, which can go undetected.
[Sorry if this is preaching to the converted...]

What's a bp-> ?  Is it an eCos data structure or part of GoAhead?
Those source files are references to allocation calls or pointers?
(If anyone else has more context here and can help properly, ignore me)

	- Huge

  reply	other threads:[~2000-11-30  9:00 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2000-11-30  8:06 Colin Ford
2000-11-30  9:00 ` Hugo Tyson [this message]
2000-11-30  9:42   ` Jonathan Larmour

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=wwtpujdtnah.fsf@masala.cygnus \
    --to=hmt@redhat.com \
    --cc=ecos-discuss@sourceware.cygnus.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).