From: Bruce Richardson <bruce.richardson@intel.com>
To: Jim Harris <james.r.harris@intel.com>
Cc: dev@dpdk.org
Subject: Re: [dpdk-dev] [PATCH] contigmem: cleanup properly when load fails
Date: Tue, 10 Mar 2020 09:31:56 +0000 [thread overview]
Message-ID: <20200310093156.GA1915@bricha3-MOBL.ger.corp.intel.com> (raw)
In-Reply-To: <20200309100025.9022-1-james.r.harris@intel.com>
On Mon, Mar 09, 2020 at 03:00:25AM -0700, Jim Harris wrote:
> If contigmem is not able to allocate all of the
> requested buffers, it frees whatever buffers were
> able to be allocated up until that point.
>
> But the pointers are not set to NULL in that case.
> After the load fails, the FreeBSD kernel will
> immediately call the contigmem unload handler, which
> tries to free the buffers again since the pointers
> were not set to NULL.
>
> It's not clear that we should just rely on the unload
> handler getting called after load failure. So let's
> keep the existing cleanup code in the load handler,
> but explicitly set the pointers to NULL after freeing
> them.
>
> Signed-off-by: Jim Harris <james.r.harris@intel.com>
> ---
Acked-by: Bruce Richardson <bruce.richardson@intel.com>
next prev parent reply other threads:[~2020-03-10 9:32 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-03-09 10:00 Jim Harris
2020-03-10 9:31 ` Bruce Richardson [this message]
2020-03-19 12:54 ` David Marchand
2020-03-19 13:52 ` Harris, James R
2020-03-19 14:41 ` David Marchand
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