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Date:	Sun, 28 Jun 2009 02:38:55 +0200
From:	Zbigniew Luszpinski <zbiggy@...pl>
To:	Robert Hancock <hancockrwd@...il.com>
Cc:	linux-kernel@...r.kernel.org
Subject: Re: OHCI USB hangs during intensive use, nVidia MCP78S chipset, few questions to help me find the problem.

On Saturday, 27 June 2009 at 19:27:58 Robert Hancock wrote:
> Are you getting any kernel errors/messages in dmesg? In any case you
> should post your dmesg output from bootup.

Thanks for response :)
Here are all my earlier dmesg dumps, irq dumps, acpi dumps...
http://bugzilla.kernel.org/show_bug.cgi?id=13405

Ok. See attached files (current dmesg I made today):
dmesg.copyFile - dmesg when usb hdd become frozen during copying CentOS DVD.
How I tested:
USB 2.0 disabled in bios
boot 2.6.30
wait till speedtouch 330 usb modem finished initialization
login as root on tty1 tty2 tty3
power on usb hdd
wait 10 seconds for hdd to finish selfinit
plugin to usb port
fdisk -l /dev/sdb
fdisk -l /dev/sdb
mount /dev/sdb3 /mnt/pendrive
ls /mnt/pendrive
cp /mnt/pendrive/CentOS-5.3-i386-bin-DVD.iso /root
usb hangs
-- cancelling URB appears in dmesg
cp is hanging on tty1
Ctrl+c terminates cp
ls -lh /mnt/pendrive | grep CentOS
-rwxr-xr-x  1 root root 3,7G 05-08 20:18 CentOS-5.3-i386-bin-DVD.iso
ls -lh /root | grep CentOS
-rwxr-xr-x  1 root root 101M 06-27 21:59 CentOS-5.3-i386-bin-DVD.iso
Only 101M from 3,7G was copied when usb hanged
trying cp again: nothing happens, dmesg silent.
fdisk -l /dev/sdb
hangs, Ctrl+c is unable to kill it
from tty3 I do umount /mnt/pendrive
hangs, Ctrl+c is unable to kill it
trying to remove ohci_hcd - rmmod hanging.
reboot - shutdown procedure begins. Stops after few seconds. Whole machine 
frozen. Unable to restart. Keyboard (PS/2) frozen. Can not type. Hard reset.

Rebooting with noapic. This above procedure finished successful. 3,7GB from 
3,7GB copied successfully. fdisk ok, umount ok, reboot ok.

dmesg.apic - dmesg with apic enabled. This time usb hdd hangs immediately 
after plugging in. Usb hdd hanged usb bus causing adsl modem to stop 
responding see ATM errors at the end of log. 

ADSL modem errors are reported by pppd (I have 1Mbit connection). I can only 
receive mail from single mailbox at once to not cause usb overload. I can only 
browse simple web pages to not overload usb bus. Opening Akregator which 
checks 13 RSS feeds at once causes usb hang in a 1 second time. Opening 2 
mailboxes together hangs usb immediately. However small usb traffic like 
pinging one site works perfect.
All these problems are resolved thanks to noapic or acpi=noirq kernel 
parameter (but downloading dvd iso of CentOS is still not possible). This log 
shows how usb modem behaves when kernel is booted without any parameters:
Mar 19 20:47:16 localhost pppd[5193]: Plugin pppoatm.so loaded.
Mar 19 20:47:16 localhost pppd[5193]: PPPoATM plugin_init
Mar 19 20:47:16 localhost pppd[5193]: PPPoATM setdevname_pppoatm - 
SUCCESS:0.35
Mar 19 20:47:16 localhost pppd[5193]: pppd 2.4.4 started by root, uid 0
Mar 19 20:47:16 localhost pppd[5193]: Using interface ppp0
Mar 19 20:47:16 localhost pppd[5193]: Connect: ppp0 <--> 0.35
Mar 19 20:47:19 localhost pppd[5193]: CHAP authentication succeeded
Mar 19 20:47:19 localhost pppd[5193]: CHAP authentication succeeded
Mar 19 20:47:19 localhost pppd[5193]: kernel does not support PPP filtering
Mar 19 20:47:19 localhost pppd[5193]: local  IP address xx.xxx.xxx.xxx
Mar 19 20:47:19 localhost pppd[5193]: remote IP address xx.xxx.xxx.xxx
Mar 19 20:47:19 localhost pppd[5193]: primary   DNS address xx.xxx.xxx.xx
Mar 19 20:47:19 localhost pppd[5193]: secondary DNS address xxx.xxx.xxx.xx
Mar 19 20:49:10 localhost acpid: client connected from 14701[0:0]
Mar 19 20:49:10 localhost acpid: 1 client rule loaded
Mar 19 20:50:29 localhost acpid: client connected from 20859[0:0]
Mar 19 20:50:29 localhost acpid: 1 client rule loaded
Mar 19 20:59:30 localhost acpid: client connected from 20970[0:0]
Mar 19 20:59:30 localhost acpid: 1 client rule loaded
Mar 19 20:59:31 localhost acpid: client connected from 20970[0:0]
Mar 19 20:59:31 localhost acpid: 1 client rule loaded
Mar 19 21:10:30 localhost acpid: client connected from 21368[0:0]
Mar 19 21:10:30 localhost acpid: 1 client rule loaded
Mar 19 21:10:30 localhost acpid: client connected from 21368[0:0]
Mar 19 21:10:30 localhost acpid: 1 client rule loaded
Mar 19 21:14:40 localhost pppd[5205]: No response to 3 echo-requests <--- 
since now usb hangs
Mar 19 21:14:40 localhost pppd[5205]: Serial link appears to be disconnected.
Mar 19 21:14:40 localhost pppd[5205]: Connect time 27.4 minutes.
Mar 19 21:14:40 localhost pppd[5205]: Sent 28932 bytes, received 716806 bytes.
Mar 19 21:14:46 localhost pppd[5205]: Connection terminated.
Mar 19 21:14:46 localhost pppd[5205]: Modem hangup
Mar 19 21:14:50 localhost pppd[5205]: Using interface ppp0
Mar 19 21:14:50 localhost pppd[5205]: Connect: ppp0 <--> 0.35
Mar 19 21:15:20 localhost pppd[5205]: LCP: timeout sending Config-Requests
Mar 19 21:15:20 localhost pppd[5205]: Connection terminated.
Mar 19 21:15:20 localhost pppd[5205]: Modem hangup
Mar 19 21:15:24 localhost pppd[5205]: Using interface ppp0
Mar 19 21:15:24 localhost pppd[5205]: Connect: ppp0 <--> 0.35
Mar 19 21:15:54 localhost pppd[5205]: LCP: timeout sending Config-Requests
Mar 19 21:15:54 localhost pppd[5205]: Connection terminated.
Mar 19 21:15:54 localhost pppd[5205]: Modem hangup
Mar 19 21:15:58 localhost pppd[5205]: Using interface ppp0
Mar 19 21:15:58 localhost pppd[5205]: Connect: ppp0 <--> 0.35
Mar 19 21:16:29 localhost pppd[5205]: LCP: timeout sending Config-Requests
Mar 19 21:16:29 localhost pppd[5205]: Connection terminated.
Mar 19 21:16:29 localhost pppd[5205]: Modem hangup
Mar 19 21:16:33 localhost pppd[5205]: Using interface ppp0
Mar 19 21:16:33 localhost pppd[5205]: Connect: ppp0 <--> 0.35
Mar 19 21:17:03 localhost pppd[5205]: LCP: timeout sending Config-Requests
Mar 19 21:17:03 localhost pppd[5205]: Connection terminated.
Mar 19 21:17:03 localhost pppd[5205]: Modem hangup
Mar 19 21:17:07 localhost pppd[5205]: Using interface ppp0
Mar 19 21:17:07 localhost pppd[5205]: Connect: ppp0 <--> 0.35
Mar 19 21:17:37 localhost pppd[5205]: LCP: timeout sending Config-Requests
Mar 19 21:17:37 localhost pppd[5205]: Connection terminated.
Mar 19 21:17:37 localhost pppd[5205]: Modem hangup
Mar 19 21:17:41 localhost pppd[5205]: Using interface ppp0
Mar 19 21:17:41 localhost pppd[5205]: Connect: ppp0 <--> 0.35
Mar 19 21:18:11 localhost pppd[5205]: LCP: timeout sending Config-Requests
Mar 19 21:18:11 localhost pppd[5205]: Connection terminated.
Mar 19 21:18:11 localhost pppd[5205]: Modem hangup
Mar 19 21:18:15 localhost pppd[5205]: Using interface ppp0
Mar 19 21:18:15 localhost pppd[5205]: Connect: ppp0 <--> 0.35
Mar 19 21:18:35 localhost init: Switching to runlevel: 6 <-- I try to reboot

Download attachment "dmesg.copyFile.bz2" of type "application/x-bzip" (2313 bytes)

Download attachment "dmesg.apic.bz2" of type "application/x-bzip" (12416 bytes)

Download attachment "dmesg.noapic.bz2" of type "application/x-bzip" (14357 bytes)

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