Re: [Freeipmi-devel] Re: BMC/ARP investigation update

[Mike Haskell]

Just a thought... are we sure any 'wake-on-lan' capability is turned off 
everywhere?
mlh


Anand Babu wrote:

> Fix is very simple. 
>
> FILE: src/e1000_main.c
> ----------------------
> static int
> e1000_notify_reboot(struct notifier_block *nb, unsigned long event, void *p)
> {
>         struct pci_dev *pdev = NULL;
>
>         switch(event) {
>         case SYS_DOWN:
>         case SYS_HALT:
>         case SYS_POWER_OFF:
>                 pci_for_each_dev(pdev) {
>                         if(pci_dev_driver(pdev) == &e1000_driver)
> =>                           e1000_suspend(pdev, 3);
>                                ^^^^^^^ CAUSE OF BUG ^^^^^^
>                 }
>         }
>         return NOTIFY_DONE;
> }
>
>
> We want the NIC to be in usable state even after kernel halts. Because
> BMC shares the NIC. You can either comment out e1000_suspend or
> replace it with 
>  pci_unregister_driver(&e1000_driver);
>  or
>  directly call e1000_remove(struct pci_dev *pdev);
>
>
> Call trace:
> pci_unregister_driver 
>   -> e1000_remove
>       	-> e1000_smbus_arp_enable(adapter, TRUE); 
> 	-> e1000_phy_hw_reset(&adapter->hw);      
>              /* Returns the PHY to the power-on reset state */
>
> -ab
>
> ,----[ Albert Chu <address@hidden> ]
> | I just did the following experiment:
> | 
> | - Forced e1000 to *not* load by turning it off in /etc/modules.conf
> | - Boot stock RHEL3 kernel
> | 
> | and the halting problem was gone.  So it looks like the e1000 driver
> | is the cause, although I'm still not 100% if it is the root cause.
> | I'll begin looking at redhat's e1000 driver, to see if there is
> | anything fishy about it ... Have you guys gotten the Intel driver to
> | work??
> `----
>
>
>  

--

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Michael Haskell
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