Re: 3.0-rc1: powerpc hangs at Kernel virtual memory layout
From: Benjamin Herrenschmidt
Date: Sun Jun 05 2011 - 23:47:33 EST
On Sun, 2011-06-05 at 19:11 -0700, Christian Kujau wrote:
> 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+
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