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Date: Mon, 06 Jun 2011 13:46:51 +1000 From: Benjamin Herrenschmidt <benh@...nel.crashing.org> To: Christian Kujau <lists@...dbynature.de> 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 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. Yup. > 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+ Good :-) Cheers, Ben. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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