Re: hang with pcmcia wlan card

[Wiktor Wodecki <wodecki@gmx.de>]

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well, at least it is this changeset for me (same problem)

> --- linux-2.5.73-bk1/drivers/pcmcia/ti113x.h  2003-06-22
> 11:32:41.000000000 -0700
> +++ linux-2.5.73-bk2/drivers/pcmcia/ti113x.h  2003-06-24
> 13:06:59.000000000 -0700
> @@ -175,6 +175,27 @@
>       new = reg & ~I365_INTR_ENA;
>       if (new != reg)
>               exca_writeb(socket, I365_INTCTL, new);
> +
> +     /*
> +      * If ISA interrupts don't work, then fall back to routing card
> +      * interrupts to the PCI interrupt of the socket.
> +      */
> +     if (!socket->socket.irq_mask) {
> +             int irqmux, devctl;
> +
> +             printk (KERN_INFO "ti113x: Routing card interrupts to
> PCI\n");
> +
> +             devctl = config_readb(socket, TI113X_DEVICE_CONTROL);
> +             devctl &= ~TI113X_DCR_IMODE_MASK;
> +
> +             irqmux = config_readl(socket, TI122X_IRQMUX);
> +             irqmux = (irqmux & ~0x0f) | 0x02; /* route INTA */
> +             irqmux = (irqmux & ~0xf0) | 0x20; /* route INTB */
> +
> +             config_writel(socket, TI122X_IRQMUX, irqmux);
> +             config_writeb(socket, TI113X_DEVICE_CONTROL, devctl);
> +     }
> +
>       socket->socket.ss_entry->init = ti_init;
>       return 0;
>  }


On Sat, Jul 12, 2003 at 05:30:39PM +0100, Russell King wrote:
> On Sat, Jul 12, 2003 at 07:22:53PM +0300, Jaakko Niemi wrote:
> > 
> > > Hi,
> > >
> > >My laptop (thinkpad 570e) hangs hard straight after bringing up
> > >interface with d-link dwl-650 wlan card. 2.5.73-bk1 works and
> > >2.5.73-bk2 to 2.5.75-bk1 hang. If I boot without the card,
> > >everything comes up, but inserting the card results to a hang.
> > >Setting nmi_watchdog=2 has no effect.
> > 
> >  Ok, bit more info: same thing happens with edimax 8139 based
> >  cardbus nic also. I've disabled apm and acpi from kernel 
> >  and going to start going through the pci changes between 
> >  2.5.73-bk1 and bk2. Any clues would be much appreciated.
> 
> Its a hotplug/netdevice interaction, and it happens for many hotpluggable
> network devices, whether they be NE2K cards, wireless cards or whatever.
> 
> AFAICS, it isn't a PCMCIA nor cardbus problem.
> 
> -- 
> Russell King (rmk@arm.linux.org.uk)                The developer of ARM Linux
>              http://www.arm.linux.org.uk/personal/aboutme.html
> 
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-- 
Regards,

Wiktor Wodecki

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