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
next prev parent 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
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