linux-kernel - Re: 3.0-rc1: powerpc hangs at Kernel virtual memory layout

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Date:	Sun, 5 Jun 2011 19:11:18 -0700 (PDT)
From:	Christian Kujau <lists@...dbynature.de>
To:	Benjamin Herrenschmidt <benh@...nel.crashing.org>
cc:	linville@...driver.com, LKML <linux-kernel@...r.kernel.org>,
	linux ppc dev <linuxppc-dev@...ts.ozlabs.org>,
	zajec5@...il.com
Subject: Re: 3.0-rc1: powerpc hangs at Kernel virtual memory layout

On Thu, 2 Jun 2011 at 17:33, Benjamin Herrenschmidt wrote:
> It -looks- to me that something goes wrong in the tty code when a large
> file is piped through a pty, causing the kernel to hang for minutes in
> the workqueue / ldisk flush code. I've just sent an initial report to
> Alan Cox about it and am currently bisecting it.

This was the "tty vs workqueue oddities" thread, right? FWIW, 
55db4c64eddf37 ("Revert "tty: make receive_buf() return the amout of bytes 
received"") seems to have fixed it on this powerpc machine as well.

With your "ssb: pci: Don't call PCIe specific workarounds on PCI cores" 
patch applied, powerpc32 seems to be quite happy with 3.0-rc1+

Thanks,
Christian.
-- 
BOFH excuse #382:

Someone was smoking in the computer room and set off the halon systems.
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