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    SubjectRe: Kernel Oops with 2.6.21.1 on an AMD K7 machine
    Date
    Am Dienstag, 22. Mai 2007 13:18 schrieben Sie:
    > Am Dienstag, 22. Mai 2007 00:54 schrieben Sie:
    > > On Tue, 22 May 2007 00:28:57 +0200
    > >
    > > "Uwe Bugla" <uwe.bugla@gmx.de> wrote:
    > > > kernel 2.6.21.1 makes my machine Oops about 20 seconds after KDE 3,5 is
    > > > brought up showing its graphical login (kdm):
    > >
    > > We're completely blind unless we can see that oops info.
    >
    > Yes.
    >
    > And I am completely blind if I even once rely on some v4l "maintainer" who:
    >
    > a. has absolutely ZERO knowledge about DVB issues
    > b. is not ready to share power and competence with a second or a third
    > maintainer
    > c. smashes down democratic votes (there have been 4 traditional highly
    > experienced DVB maintainers voting for one person to resolve that issue -
    > one of them was the "old rock" Ralph Metzler)
    > d. reviews code that he absolutely has no idea about and signs it off
    > e. gives stupid replies on specific questions due to his proven
    > incompetence
    >
    > Would you call this man helpful and honest? My answer you can easily guess!
    >
    > > If it reached
    > > /var/log/messages then please send it.
    > >
    > > If it didn't please set up netconsole
    > > (Documentation/networking/netconsole.txt)
    > >
    > > If for some reason that isn't possible then you couldry switching to
    > > the vga concole (alt-ctl-F1) before the ooops and see if the output
    > > is visible on the VGA screen. If it is there, a digital photo will suit
    > > (you can email it to me and I can stick it on a server somewhere if
    > > you like). The last option is to write the oops info down with a
    > > pencil and type it in again, but that's painful (all the hex addresses
    > > in the stack backtrace can be omitted)
    > >
    > > Thanks.
    >
    > OK, back to the AMD K7 oops issue now:
    >
    > I in fact never could believe that a simple buggy NIC driver could ever
    > hang up a whole machine!
    >
    > So, if someone could be kind enough to explain to me in how far that can
    > happen I'd be very thankful.
    >
    > The solution for the 2.6.21.1 oops issue is the following patch, who needs
    > to flow into vanilla mainline of 2.6.21.x as quick as possible:
    >
    > --- a/drivers/net/sis900.c
    > +++ b/drivers/net/sis900.c
    > @@ -1754,6 +1754,7 @@ static int sis900_rx(struct net_device *
    > sis_priv->rx_ring[entry].cmdsts = RX_BUF_SIZE;
    > } else {
    > struct sk_buff * skb;
    > + struct sk_buff * rx_skb;
    >
    > pci_unmap_single(sis_priv->pci_dev,
    > sis_priv->rx_ring[entry].bufptr, RX_BUF_SIZE,
    > @@ -1787,10 +1788,10 @@ static int sis900_rx(struct net_device *
    > }
    >
    > /* give the socket buffer to upper layers */
    > - skb = sis_priv->rx_skbuff[entry];
    > - skb_put(skb, rx_size);
    > - skb->protocol = eth_type_trans(skb, net_dev);
    > - netif_rx(skb);
    > + rx_skb = sis_priv->rx_skbuff[entry];
    > + skb_put(rx_skb, rx_size);
    > + rx_skb->protocol = eth_type_trans(rx_skb, net_dev);
    > + netif_rx(rx_skb);
    >
    > /* some network statistics */
    > if ((rx_status & BCAST) == MCAST)
    >
    > Lots of thanks for Andrew Morton's helpful explanations how to store oops
    > infos. Lots of thanks to all the other people trying to help.
    > I love to learn! :)
    >
    > Best Regards
    >
    > Uwe

    Sorry, I forgot to Cc vger.kernel.org - mea culpa!

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