Crash on network transfer
Jonathan Berry
berryja at gmail.com
Mon Jan 10 21:49:02 UTC 2005
On Fri, 31 Dec 2004 12:12:21 -0800, Chris Lynch <tsw at one.net> wrote:
>
> Hello all,
>
> Over the past few weeks I've been trying to figure this out, but I'm quite
> stuck. I'm pretty new to Linux, so my troubleshooting has only gotten me so
> far...
>
> Essentially, the problem occurs when I try to ftp something at relatively
> high speeds to or from my FC3 box. Browsing from the box or other items
> don't cause this problem, as they don't get the bandwidth that apparently
> triggers this problem. When I start my FTP, things go smoothly for a few
> moments (say they're running at 10MB/sec), and then the machine dies (no
> response, although the lights on the keyboard are not flashing).
>
[snip]
>
> My interrupts look like this:
> CPU0
> 0: 843136 XT-PIC timer
> 1: 10 XT-PIC i8042
> 2: 0 XT-PIC cascade
> 5: 0 XT-PIC ivtv: iTVC15/16 mpg2 encoder chip
> 8: 1 XT-PIC rtc
> 9: 2015 XT-PIC SysKonnect SK-98xx
> 10: 13502 XT-PIC ide2
> 11: 50395 XT-PIC EMU10K1, nvidia
> 12: 92 XT-PIC i8042
> 14: 20719 XT-PIC ide0
> NMI: 0
> ERR: 0
>
> I don't think anything looks out of the ordinary in there, so I'm really
> stumped. Turning off DMA isn't much of an option on this box as I run
> MythTV on it and need good drive bandwidth.
>
> I'd appreciate any thoughts or ideas anyone has! Hopefully this is the
> right place to send this.
>
> Thanks,
>
> Chris
Have you tried booting with the "noapic" option. At GRUB boot screen
press 'a' on the Fedora entry and type " noapic" and hit enter to
boot. It is possible you could have problems with the dynamic IRQs
and seeing these problems with heavy network usage. I have heard of
APIC causing problems with networking, but this is only a guess. Can
you reproduce errors in other ways by using the network? Perhaps
downloading a file from the internet (by http, to get away from ftp).
Jonathan
PS It's best to send plain-text messages to the list. Some people
don't like it when others send HTML mail.
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