Date: Fri, 30 Sep 2005 09:58:23 -0500
To: Doug Maxey <dwm@maxeymade.com>
Cc: paulus@samba.org, linuxppc64-dev@ozlabs.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH 7/7] ppc64: EEH Halt if bad drivers spin in error condition
Message-ID: <20050930145822.GM29826@austin.ibm.com>
References: <20050930010228.GG6173@austin.ibm.com> <200509300449.j8U4n94d014765@falcon30.maxeymade.com>
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From: linas <linas@austin.ibm.com>
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On Thu, Sep 29, 2005 at 11:49:09PM -0500, Doug Maxey was heard to remark:
> 
> On Thu, 29 Sep 2005 20:02:28 CDT, linas wrote:
> >
> >07-eeh-spin-counter.patch
> >
> >One an EEH event is triggers, all further I/O to a device is blocked (until
> >reset).  Bad device drivers may end up spinning in their interrupt handlers, 
> >trying to read an interrupt status register that will never change state.
> >This patch moves that spin counter to a per-device structure, and adds
> >some diagnostic prints to help locate the bad driver.
> >
> 
> Which struct gets the element?

struct pci_dn, which Paulus recently introduced; it splits off the pci
parts from struct device_node.  Think of it as holding all the firmaware
and arch-specific peices that can't be jammed in the generic struct pci_dev.

--linas

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