linux-parisc.vger.kernel.org archive mirror
 help / color / mirror / Atom feed
From: Jeroen Roovers <jer@gentoo.org>
To: Helge Deller <deller@gmx.de>
Cc: linux-parisc@vger.kernel.org,
	James Bottomley <James.Bottomley@hansenpartnership.com>,
	John David Anglin <dave.anglin@bell.net>,
	Sven Schnelle <svens@stackframe.org>
Subject: Re: [PATCH] parisc: Fix vmap memory leak in ioremap()/iounmap()
Date: Mon, 30 Sep 2019 08:20:26 +0200	[thread overview]
Message-ID: <20190930082026.6ac087ff@wim.jer> (raw)
In-Reply-To: <20190909133856.GA32746@ls3530.fritz.box>

On Mon, 9 Sep 2019 15:38:56 +0200
Helge Deller <deller@gmx.de> wrote:

> Sven noticed that calling ioremap() and iounmap() multiple times leads
> to a vmap memory leak:
> 	vmap allocation for size 4198400 failed:
> 	use vmalloc=<size> to increase size
> 
> It seems we missed calling remove_vm_area() for ioummap().

That patch seems to work (tested on a C8000 for a couple of weeks). I
was surprised it wasn't part of the "parisc architecture updates for
kernel v5.4" pull request.


Kind regards,
     jer

  reply	other threads:[~2019-09-30  6:20 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-09-09 13:38 [PATCH] parisc: Fix vmap memory leak in ioremap()/iounmap() Helge Deller
2019-09-30  6:20 ` Jeroen Roovers [this message]
2019-09-30  6:35   ` Carlo Pisani
2019-10-02 15:38   ` Helge Deller
2019-10-04 17:23     ` [PATCH v2] " Helge Deller
2019-10-11 19:17     ` pATA Promise Technologies PDC20265 (datasheet) Carlo Pisani

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=20190930082026.6ac087ff@wim.jer \
    --to=jer@gentoo.org \
    --cc=James.Bottomley@hansenpartnership.com \
    --cc=dave.anglin@bell.net \
    --cc=deller@gmx.de \
    --cc=linux-parisc@vger.kernel.org \
    --cc=svens@stackframe.org \
    /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 NNTP newsgroup(s).