From: Thomas Monjalon <thomas.monjalon@6wind.com>
To: Sergio Gonzalez Monroy <sergio.gonzalez.monroy@intel.com>
Cc: dev@dpdk.org
Subject: Re: [dpdk-dev] [PATCH 2/2] mem: fix freeing an IVSHMEM memzone
Date: Mon, 10 Aug 2015 15:40:07 +0200 [thread overview]
Message-ID: <5563961.nNkN52hQJs@xps13> (raw)
In-Reply-To: <1438961253-4011-2-git-send-email-sergio.gonzalez.monroy@intel.com>
2015-08-07 16:27, Sergio Gonzalez Monroy:
> There is no sync between host and guest to allow removal of memzones,
> and freeing them result in undefined behavior.
>
> In the guest, we identify IVSHMEM memsegs/memzones by having
> ioremap_addr != 0. In the host, nothing is done to the memzone, meaning
> ioremap_addr == 0.
>
> As a solution, mark memzones being added to IVSHMEM in the host, by
> setting ioremap_addr, then return an error whenever we try to free an
> IVSHMEM memzone.
>
> Fixes: ff909fe21f0 ("mem: introduce memzone freeing")
>
> Signed-off-by: Sergio Gonzalez Monroy <sergio.gonzalez.monroy@intel.com>
Series applied, thanks
prev parent reply other threads:[~2015-08-10 13:41 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-08-07 15:27 [dpdk-dev] [PATCH 1/2] mem: fix IVSHMEM Sergio Gonzalez Monroy
2015-08-07 15:27 ` [dpdk-dev] [PATCH 2/2] mem: fix freeing an IVSHMEM memzone Sergio Gonzalez Monroy
2015-08-10 13:40 ` Thomas Monjalon [this message]
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