[KERNEL 2.6.26-rc4] bugreport : pata_pcmcia with Sandisk Extreme III 8GB
komurojun-mbn at nifty.com
Sat Jun 14 08:36:12 EDT 2008
On Sat, 14 Jun 2008 03:20:41 -0400
Jeff Garzik <jeff at garzik.org> wrote:
After removing the 3-lines below in ata_eh_reset
the pata_pcmcia works properly.
- spin_lock_irqsave(link->ap->lock, flags);
- link->eh_info.serror = 0;
- spin_unlock_irqrestore(link->ap->lock, flags);
Please fix this problem.
> >>>>>> pcmcia: registering new device pcmcia1.1
> >>>>>> 1.1: GetNextTuple: No more items
> >>>>>> pata_pcmcia: probe of 1.1 failed with error -12
> > The patch "libata: kill hotplug related race condition"
> > introduced the pata_pcmcia error.
> > Please fix this problem.
> > Best Regards
> > Komuro
> >>> f046519fc85a8fdf6a058b4ac9d897cdee6f3e52 is first bad commit
> > commit f046519fc85a8fdf6a058b4ac9d897cdee6f3e52
> > Author: Tejun Heo <htejun at gmail.com>
> > Date: Mon May 19 01:15:08 2008 +0900
> > libata: kill hotplug related race condition
> > Originally, whole reset processing was done while the port is frozen
> > and SError was cleared during @postreset(). This had two race
> > conditions. 1: hotplug could occur after reset but before SError is
> > cleared and libata won't know about it. 2: hotplug could occur after
> > all the reset is complete but before the port is thawed. As all
> > events are cleared on thaw, the hotplug event would be lost.
> Interesting! Thanks for the diagnosis...
Komuro <komurojun-mbn at nifty.com>
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