netdev - netdev_alloc_skb is failing for 16k length

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Message-ID: <6891cd8b-a3be-91f5-39c4-7a7e7d498921@codeaurora.org>
Date:   Mon, 27 May 2019 12:21:51 +0530
From:   Arun Kumar Neelakantam <aneela@...eaurora.org>
To:     netdev@...r.kernel.org,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        Chris Lew <clew@...eaurora.org>
Subject: netdev_alloc_skb is failing for 16k length

Hi team,

we are using "skb = netdev_alloc_skb(NULL, len);" which is getting 
failed sometimes for len = 16k.

I suspect mostly system memory got fragmented and hence atomic memory 
allocation for 16k is failing, can you please suggest best way to handle 
this failure case.

Thanks

Arun N