From: Bruce Richardson <bruce.richardson@intel.com>
To: Pablo de Lara <pablo.de.lara.guarch@intel.com>
Cc: dev@dpdk.org, stable@dpdk.org
Subject: Re: [dpdk-stable] [PATCH v2] hash: fix incorrect eviction counter
Date: Fri, 22 Sep 2017 14:46:37 +0100 [thread overview]
Message-ID: <20170922134637.GA21280@bricha3-MOBL3.ger.corp.intel.com> (raw)
In-Reply-To: <20170922042543.38362-1-pablo.de.lara.guarch@intel.com>
On Fri, Sep 22, 2017 at 05:25:43AM +0100, Pablo de Lara wrote:
> When adding a new entry in a hash table, there is
> a maximum number of evictions that can be
> performed. When the counter of these evictions reaches
> this maximum, the entry cannot be added, as it is considered
> that the algorithm has encountered an infinite loop.
>
> The problem with the current implementation, is that this
> counter was declared as a static variable.
> If there are multiple threads adding entries in the same table
> or in different tables, they should access different counters,
> one per core and per table.
>
> Therefore, the variable has been modified to be non-static.
>
> Fixes: 243e93a5046f ("hash: fix unlimited cuckoo path")
> Cc: stable@dpdk.org
>
> Signed-off-by: Pablo de Lara <pablo.de.lara.guarch@intel.com>
> ---
Acked-by: Bruce Richardson <bruce.richardson@intel.com>
next prev parent reply other threads:[~2017-09-22 13:46 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-09-21 12:46 [dpdk-stable] [PATCH] " Pablo de Lara
2017-09-22 4:25 ` [dpdk-stable] [PATCH v2] " Pablo de Lara
2017-09-22 13:46 ` Bruce Richardson [this message]
2017-10-06 22:10 ` [dpdk-stable] [dpdk-dev] " Thomas Monjalon
2017-09-22 8:35 ` [dpdk-stable] [PATCH] " Bruce Richardson
2017-09-22 10:40 ` De Lara Guarch, Pablo
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