Conflict between ide and usb?

John Coppens
2007-03-16T19:11:13Z

Hi all.

I installed ueagle-atm, which, by itself, is working fine with an
MT-810 modem.

The problem I have, is that when I copy a file from a DVD to harddisk,
the internet connection almost dies (it slows down terribly, so much so
that established connections actually disconnect, ping looses packets,
DNS lookup fails, etc). After copy ends, all returns to normal.

The machine is an AMD64, still in x86 mode though. CPU activity is very
low during the copy, so it's not a CPU problem. Kernel is 2.6.20.2. APIC
is enabled. No error message found in either /var/log/messages or syslog.
DVD and HD are on different IDE interfaces.

Can anyone suggest where to start looking for a solution?

Cheers,
John

$ cat interrupts
CPU0 CPU1
0: 58428350 6031800 XT-PIC-XT timer
1: 204337 9 IO-APIC-edge i8042
6: 0 3 IO-APIC-edge floppy
7: 6031308 58426101 IO-APIC-edge parport0
9: 0 0 IO-APIC-fasteoi acpi
12: 211041 5153326 IO-APIC-edge i8042
14: 93535 316012 IO-APIC-edge ide0
15: 246534 40 IO-APIC-edge ide1
16: 2591 1737056 IO-APIC-fasteoi libata, HDA Intel
17: 41 1 IO-APIC-fasteoi libata, ehci_hcd:usb2
18: 7717494 19142555 IO-APIC-fasteoi eth0
19: 0 0 IO-APIC-fasteoi eth1
20: 90833792 3057782 IO-APIC-fasteoi ohci_hcd:usb1
21: 22135804 1 IO-APIC-fasteoi nvidia
22: 0 0 IO-APIC-fasteoi saa7130[0]
NMI: 0 0
LOC: 64460593 64460595
ERR: 1
MIS: 0

$ lsmod
Module Size Used by
pppoe 9792 2
pppox 3016 1 pppoe
ppp_generic 21396 6 pppoe,pppox
slhc 5440 1 ppp_generic
br2684 6596 1
i2c_viapro 7380 0
w83627ehf 16140 0
i2c_isa 4096 1 w83627ehf
snd_seq_oss 26368 0
snd_seq_midi_event 5952 1 snd_seq_oss
snd_seq 41232 4 snd_seq_oss,snd_seq_midi_event
snd_seq_device 6284 2 snd_seq_oss,snd_seq
snd_pcm_oss 34912 0
snd_mixer_oss 13376 4 snd_pcm_oss
ipt_REJECT 3648 1
ipt_MASQUERADE 2944 1
ipt_LOG 5760 1
xt_limit 2560 1
xt_state 2368 3
iptable_filter 2688 1
iptable_nat 6020 1
nf_nat 13740 2 ipt_MASQUERADE,iptable_nat
nf_conntrack_ipv4 11980 5 iptable_nat
nf_conntrack 44168 5
ipt_MASQUERADE,xt_state,iptable_nat,nf_nat,nf_conntrack_ipv4
ip_tables 9700 2 iptable_filter,iptable_nat
ueagle_atm 21032 0 firmware_class 7360 1 ueagle_atm
usbatm 14464 2 ueagle_atm
atm 33716 4 br2684,usbatm
usblp 11136 0
ide_scsi 13128 0
tuner 55272 0
saa7134 105952 0
snd_hda_intel 15192 3
snd_hda_codec 149120 1 snd_hda_intel
video_buf 18500 1 saa7134
compat_ioctl32 1536 1 saa7134
ir_kbd_i2c 6928 1 saa7134
ir_common 26372 2 saa7134,ir_kbd_i2c
ehci_hcd 24332 0
ohci_hcd 16708 0
videodev 23488 1 saa7134
snd_pcm 61124 3 snd_pcm_oss,snd_hda_intel,snd_hda_codec
snd_timer 16836 2 snd_seq,snd_pcm
snd 39268 9
snd_seq_oss,snd_seq,snd_seq_device,snd_pcm_oss,snd_mixer_oss,snd_hda_intel,snd_hda_codec,snd_pcm,snd_timer
snd_page_alloc 7368 2 snd_hda_intel,snd_pcm
sg 19032 0 i2c_nforce2 4800 0
nvidia 6817908 22
v4l2_common 21312 3 tuner,saa7134,videodev
v4l1_compat 12036 2 saa7134,videodev
k8temp 4544 0
usbcore 101768 6 ueagle_atm,usbatm,usblp,ehci_hcd,ohci_hcd
ne2k_pci 8736 0
8390 7808 1 ne2k_pci
forcedeth 37192 0
parport_pc 22628 0
parport 30728 1 parport_pc