netdev - Re: [PATCH net] r8169: don't read interrupt mask register in interrupt handler

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Message-Id: <20190322.103446.2296880942068394490.davem@davemloft.net>
Date:   Fri, 22 Mar 2019 10:34:46 -0400 (EDT)
From:   David Miller <davem@...emloft.net>
To:     hkallweit1@...il.com
Cc:     nic_swsd@...ltek.com, netdev@...r.kernel.org, user.vdr@...il.com,
        alexander.h.duyck@...ux.intel.com
Subject: Re: [PATCH net] r8169: don't read interrupt mask register in
 interrupt handler

From: Heiner Kallweit <hkallweit1@...il.com>
Date: Thu, 21 Mar 2019 21:23:14 +0100

> After the original patch network starts to crash on heavy load.
> It's not fully clear why this additional register read has such side
> effects, but removing it fixes the issue.
> 
> Thanks also to Alex for his contribution and hints.
> 
> [0] https://marc.info/?t=155268170400002&r=1&w=2
> 
> Fixes: e782410ed237 ("r8169: improve spurious interrupt detection")
> Reported-by: VDR User <user.vdr@...il.com>
> Tested-by: VDR User <user.vdr@...il.com>
> Signed-off-by: Heiner Kallweit <hkallweit1@...il.com>

Applied and queued up for -stable.