linux-kernel - Re: [PATCH] r8169: fix problem with TSO (TX_BUFFS

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Message-ID: <4FA9EEAC.7010201@palosanto.com>
Date:	Tue, 08 May 2012 23:12:28 -0500
From:	Alex Villacís Lasso <a_villacis@...osanto.com>
To:	Francois Romieu <romieu@...zoreil.com>
CC:	Thomas Pilarski <thomas.pi@...or.de>,
	Julien Ducourthial <jducourt@...e.fr>,
	Realtek linux nic maintainers <nic_swsd@...ltek.com>,
	netdev@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] r8169: fix problem with TSO (TX_BUFFS_AVAIL negative
 value)

El 07/05/12 18:42, Francois Romieu escribió:
> Julien Ducourthial<jducourt@...e.fr>  :
>> The r8169 may get stuck or show bad behaviour after activating TSO :
>> the net_device is not stopped when it has no more TX descriptors.
>> This problem comes from TX_BUFS_AVAIL which may reach -1 when all
>> transmit descriptors are in use. The patch simply tries to keep positive
>> values.
> It seems more than good.
>
> Alex, Thomas, can you check if Julien's patch below fixes your broken
> kernels as well ?
>
No luck. The backtrace still appears after using the patched driver.
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