netdev - Re: [PATCH 1/2] bnx2: allocate with GFP

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Date:	Fri, 16 Jul 2010 09:13:34 +0200
From:	Stanislaw Gruszka <sgruszka@...hat.com>
To:	David Miller <davem@...emloft.net>
Cc:	mchan@...adcom.com, netdev@...r.kernel.org
Subject: Re: [PATCH 1/2] bnx2: allocate with GFP_KERNEL flag on RX path init

On Thu, 15 Jul 2010 20:25:37 -0700 (PDT)
David Miller <davem@...emloft.net> wrote:

> > This should be GFP_ATOMIC since it is called from NAPI softirq
> > context.
> 
> This fatal issue gives me doubts about whether this patch was even
> tested at all.
> 
> Immediately the kernel memory allocator should have issued a warning
> due to this GFP_KERNEL allocation in a non-sleep'able context.
> 
> Stanislaw, how did you test this patch?

I run net-next-2.6 kernel with patches on machine with bnx2 device,
but I compiled kernel with CONFIG_DEBUG_KOBJECT and all dmesg was filled
by messages like:

kobject: 'block' (ffff8801663122c0): kobject_add_internal: parent: '2:2:1:0', set: '(null)'
kobject: 'sdc' (ffff8801642ca070): kobject_add_internal: parent: 'block', set: 'devices'
kobject: 'sdc' (ffff8801642ca070): kobject_uevent_env

so I missed the warning, grr...

Stanislaw
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