2012-08-29 18:53:18

by Marcin Slusarz

Subject: "netpoll: re-enable irq in poll_napi()" breaks boot with netconsole

Hi

Kernel 3.6-rc3 does not boot for me with netconsole enabled, while 3.6-rc2 did.
I bisected it to commit 6bdb7fe31046ac50b47e83c35cd6c6b6160a475d "netpoll:
re-enable irq in poll_napi()" and reverting it on top of current Linus' tree
restores proper behaviour (disabling netconsole does this too).
"Not booting" manifests as immediate hang after network card enabling.

Cheers,
Marcin

2012-08-29 18:59:51

by David Miller

Subject: Re: "netpoll: re-enable irq in poll_napi()" breaks boot with netconsole

From: Marcin Slusarz <[email protected]>
Date: Wed, 29 Aug 2012 20:53:29 +0200

> Kernel 3.6-rc3 does not boot for me with netconsole enabled, while 3.6-rc2 did.
> I bisected it to commit 6bdb7fe31046ac50b47e83c35cd6c6b6160a475d "netpoll:
> re-enable irq in poll_napi()" and reverting it on top of current Linus' tree
> restores proper behaviour (disabling netconsole does this too).
> "Not booting" manifests as immediate hang after network card enabling.

Fix is already pending, thanks:

http://patchwork.ozlabs.org/patch/179954/

2012-08-29 19:32:42

by Marcin Slusarz

Subject: Re: "netpoll: re-enable irq in poll_napi()" breaks boot with netconsole

On Wed, Aug 29, 2012 at 02:59:47PM -0400, David Miller wrote:
> From: Marcin Slusarz <[email protected]>
> Date: Wed, 29 Aug 2012 20:53:29 +0200
>
> > Kernel 3.6-rc3 does not boot for me with netconsole enabled, while 3.6-rc2 did.
> > I bisected it to commit 6bdb7fe31046ac50b47e83c35cd6c6b6160a475d "netpoll:
> > re-enable irq in poll_napi()" and reverting it on top of current Linus' tree
> > restores proper behaviour (disabling netconsole does this too).
> > "Not booting" manifests as immediate hang after network card enabling.
>
> Fix is already pending, thanks:
>
> http://patchwork.ozlabs.org/patch/179954/

It works for me. Thanks.

Marcin