From: Rik van Riel <riel@conectiva.com.br>
To: Manfred Spraul <manfred@colorfullife.com>
Cc: linux-mm@kvack.org
Subject: Re: [PATCH] modified memory_pressure calculation
Date: Sun, 27 May 2001 12:58:13 -0300 (BRST) [thread overview]
Message-ID: <Pine.LNX.4.21.0105271256500.1907-100000@imladris.rielhome.conectiva> (raw)
In-Reply-To: <3B10F351.6DDEC59@colorfullife.com>
On Sun, 27 May 2001, Manfred Spraul wrote:
> * if reclaim_page() finds a page that is Referenced, Dirty or Locked
> then it must increase memory_pressure.
Why ?
> * I don't understand the purpose of the second ++ in alloc_pages().
It's broken and should be removed. Thanks for spotting
this one.
> What about the attached patch [vs. 2.4.5]? It's just an idea, untested.
Just remove the in_interrupt() check near PF_MEMALLOC, will you?
Adding that check makes it possible for a pingflood to deadlock
kswapd, as the network card can allocate the very last pages in
the system and kswapd needs those pages to free up memory.
regards,
Rik
--
Virtual memory is like a game you can't win;
However, without VM there's truly nothing to lose...
http://www.surriel.com/ http://distro.conectiva.com/
Send all your spam to aardvark@nl.linux.org (spam digging piggy)
--
To unsubscribe, send a message with 'unsubscribe linux-mm' in
the body to majordomo@kvack.org. For more info on Linux MM,
see: http://www.linux-mm.org/
next prev parent reply other threads:[~2001-05-27 15:58 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-05-27 12:30 Manfred Spraul
2001-05-27 15:58 ` Rik van Riel [this message]
2001-05-27 17:44 ` Manfred Spraul
2001-05-27 17:51 ` Rik van Riel
2001-05-27 18:24 ` Manfred Spraul
2001-05-27 18:40 ` Rik van Riel
2001-05-28 17:29 ` Marcelo Tosatti
2001-05-28 19:20 ` Manfred Spraul
2001-05-28 18:07 ` Marcelo Tosatti
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=Pine.LNX.4.21.0105271256500.1907-100000@imladris.rielhome.conectiva \
--to=riel@conectiva.com.br \
--cc=linux-mm@kvack.org \
--cc=manfred@colorfullife.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