On Sat, 2005-01-22 at 20:52 -0500, Steven Rostedt wrote: > I'm currently working with Ingo's RT patched kernel, but I believe this > affects the mainline too. > > If the transmit buffer of the e100 overflowed, then the system would > hang. This was caused because the e100 driver would stop the queue, and > find_skb in netpoll.c would then loop forever. This is because the e100 ^^^^^^^^^
Should be netpoll_send_pkt. That's what I get when I search for "repeat" to remember which function I saw the problem in. > net_poll would never start the queue again after the transmits have > completed. > > For those that use the e100 and netconsole, all you need to do is a > sysreq 't' to lock up the system. > > Here's the patch: (from Ingo's linux-2.6.11-rc2-V0.7.36-02, but should > be OK with 2.6.11-rc2) > > > Index: drivers/net/e100.c > =================================================================== > --- drivers/net/e100.c (revision 60) > +++ drivers/net/e100.c (working copy) > @@ -1630,6 +1630,7 @@ > struct nic *nic = netdev_priv(netdev); > e100_disable_irq(nic); > e100_intr(nic->pdev->irq, netdev, NULL); > + e100_tx_clean(nic); > e100_enable_irq(nic); > } > #endif > > > > -- Steve > > > - > To unsubscribe from this list: send the line "unsubscribe linux-kernel" in > the body of a message to [EMAIL PROTECTED] > More majordomo info at http://vger.kernel.org/majordomo-info.html > Please read the FAQ at http://www.tux.org/lkml/ -- Steven Rostedt Senior Engineer Kihon Technologies - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
