From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
To: Christian Kujau <lists@nerdbynature.de>
Cc: zajec5@gmail.com, linux ppc dev <linuxppc-dev@lists.ozlabs.org>,
LKML <linux-kernel@vger.kernel.org>
Subject: Re: 3.0-rc1: powerpc hangs at Kernel virtual memory layout
Date: Mon, 06 Jun 2011 13:46:51 +1000 [thread overview]
Message-ID: <1307332011.2874.5.camel@pasglop> (raw)
In-Reply-To: <alpine.DEB.2.01.1106051907190.21697@trent.utfs.org>
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.
WARNING: multiple messages have this Message-ID (diff)
From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
To: Christian Kujau <lists@nerdbynature.de>
Cc: linville@tuxdriver.com, LKML <linux-kernel@vger.kernel.org>,
linux ppc dev <linuxppc-dev@lists.ozlabs.org>,
zajec5@gmail.com
Subject: Re: 3.0-rc1: powerpc hangs at Kernel virtual memory layout
Date: Mon, 06 Jun 2011 13:46:51 +1000 [thread overview]
Message-ID: <1307332011.2874.5.camel@pasglop> (raw)
In-Reply-To: <alpine.DEB.2.01.1106051907190.21697@trent.utfs.org>
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.
next prev parent reply other threads:[~2011-06-06 3:47 UTC|newest]
Thread overview: 37+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-05-31 23:50 3.0-rc1: powerpc hangs at Kernel virtual memory layout Christian Kujau
2011-06-01 0:25 ` Benjamin Herrenschmidt
2011-06-01 0:25 ` Benjamin Herrenschmidt
2011-06-01 0:48 ` Christian Kujau
2011-06-01 0:48 ` Christian Kujau
2011-06-01 1:08 ` Christian Kujau
2011-06-01 1:08 ` Christian Kujau
2011-06-01 3:02 ` Christian Kujau
2011-06-01 3:02 ` Christian Kujau
2011-06-01 3:49 ` Benjamin Herrenschmidt
2011-06-01 3:49 ` Benjamin Herrenschmidt
2011-06-02 0:16 ` Christian Kujau
2011-06-02 0:16 ` Christian Kujau
2011-06-02 0:47 ` Benjamin Herrenschmidt
2011-06-02 0:47 ` Benjamin Herrenschmidt
2011-06-02 2:57 ` Benjamin Herrenschmidt
2011-06-02 2:57 ` Benjamin Herrenschmidt
2011-06-02 3:06 ` Christian Kujau
2011-06-02 3:06 ` Christian Kujau
2011-06-02 4:27 ` Christian Kujau
2011-06-02 4:27 ` Christian Kujau
2011-06-02 7:33 ` Benjamin Herrenschmidt
2011-06-02 7:33 ` Benjamin Herrenschmidt
2011-06-06 2:11 ` Christian Kujau
2011-06-06 2:11 ` Christian Kujau
2011-06-06 3:46 ` Benjamin Herrenschmidt [this message]
2011-06-06 3:46 ` Benjamin Herrenschmidt
2011-06-10 22:54 ` Christian Kujau
2011-06-10 22:54 ` Christian Kujau
2011-06-10 22:59 ` Rafał Miłecki
2011-06-10 22:59 ` Rafał Miłecki
2011-06-02 6:00 ` Rafał Miłecki
2011-06-02 6:00 ` Rafał Miłecki
2011-06-02 6:07 ` Rafał Miłecki
2011-06-02 6:07 ` Rafał Miłecki
2011-06-02 6:16 ` Christian Kujau
2011-06-02 6:16 ` Christian Kujau
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