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SubjectRe: [PATCH 2/2] net: stmmac: fix jumbo frame sending with non-linear skbs
From: Aaro Koskinen <>
Date: Thu, 14 Mar 2019 21:43:20 +0200

> From: Aaro Koskinen <>
> When sending non-linear skbs with jumbo frames, we set up the non-paged
> data and mark that as a last segment, although the paged fragments are
> also prepared. This will stall the TX queue and trigger a watchdog warning
> (a simple reproducer is to run an iperf client mode TCP test with a large
> MTU - networking fails instantly).
> Fix by checking if the skb is non-linear.
> Signed-off-by: Aaro Koskinen <>


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