[Bug 241368] New: /var/log/messages flooded with "over-current change on port {5,6}" messages
https://bugzilla.novell.com/show_bug.cgi?id=241368 Summary: /var/log/messages flooded with "over-current change on port {5,6}" messages Product: openSUSE 10.2 Version: Final Platform: x86-64 OS/Version: Linux Status: NEW Severity: Normal Priority: P5 - None Component: Kernel AssignedTo: kernel-maintainers@forge.provo.novell.com ReportedBy: mfabian@novell.com QAContact: qa@suse.de My /var/log/messages file is flooded with messages like: Feb 2 01:08:55 nozomi kernel: hub 1-0:1.0: over-current change on port 6 Feb 2 01:08:56 nozomi kernel: hub 1-0:1.0: over-current change on port 5 Feb 2 01:08:56 nozomi kernel: hub 1-0:1.0: over-current change on port 6 Feb 2 01:08:56 nozomi kernel: hub 1-0:1.0: over-current change on port 5 Feb 2 01:08:57 nozomi kernel: hub 1-0:1.0: over-current change on port 5 Feb 2 01:08:57 nozomi kernel: hub 1-0:1.0: over-current change on port 6 Feb 2 01:08:57 nozomi kernel: hub 1-0:1.0: over-current change on port 6 Feb 2 01:08:58 nozomi kernel: hub 1-0:1.0: over-current change on port 5 Feb 2 01:08:58 nozomi kernel: hub 1-0:1.0: over-current change on port 6 Feb 2 01:08:58 nozomi kernel: hub 1-0:1.0: over-current change on port 5 Feb 2 01:08:58 nozomi kernel: hub 1-0:1.0: over-current change on port 6 Feb 2 01:08:58 nozomi kernel: hub 1-0:1.0: over-current change on port 5 Feb 2 01:08:58 nozomi kernel: hub 1-0:1.0: over-current change on port 5 Feb 2 01:08:58 nozomi kernel: hub 1-0:1.0: over-current change on port 6 Feb 2 01:08:58 nozomi kernel: hub 1-0:1.0: over-current change on port 5 Feb 2 01:08:58 nozomi kernel: hub 1-0:1.0: over-current change on port 6 Feb 2 01:08:59 nozomi kernel: hub 1-0:1.0: over-current change on port 6 Feb 2 01:08:59 nozomi kernel: hub 1-0:1.0: over-current change on port 5 Feb 2 01:08:59 nozomi kernel: hub 1-0:1.0: over-current change on port 6 Feb 2 01:09:00 nozomi kernel: hub 1-0:1.0: over-current change on port 5 Feb 2 01:09:00 nozomi kernel: hub 1-0:1.0: over-current change on port 6 Feb 2 01:09:01 nozomi kernel: hub 1-0:1.0: over-current change on port 6 Feb 2 01:09:03 nozomi kernel: hub 1-0:1.0: over-current change on port 5 What does that mean? Is that something to worry about? I have the following USB devices connected: - a harddisk - a headset - a keyboard - a mouse The problem was exactly the same with SUSE Linux 10.1. I didn't report it because I hoped it would go away when updating to openSUSE 10.2. But the messages are still there, no change at all. I already had the harddisk and the keyboard connected while using SUSE Linux 10.1, I added the mouse and the USB headset after updating to openSUSE 10.2. Any further information I should add? -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug, or are watching someone who is.
https://bugzilla.novell.com/show_bug.cgi?id=241368 ------- Comment #1 from mfabian@novell.com 2007-02-01 17:22 MST ------- Created an attachment (id=116956) --> (https://bugzilla.novell.com/attachment.cgi?id=116956&action=view) hwinfo--usb output of 'hwinfo --usb'. -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug, or are watching someone who is.
https://bugzilla.novell.com/show_bug.cgi?id=241368 gregkh@novell.com changed: What |Removed |Added ---------------------------------------------------------------------------- AssignedTo|kernel- |oneukum@novell.com |maintainers@forge.provo.nove| |ll.com | -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug, or are watching someone who is.
https://bugzilla.novell.com/show_bug.cgi?id=241368 oneukum@novell.com changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |ASSIGNED ------- Comment #2 from oneukum@novell.com 2007-02-02 00:50 MST ------- These messages usually mean that you are operating near the limit of power the hub supports. Unfortunately hwinfo does not include information on power consumption into its reports. Please provide the output of "lsusb -v" and "dmesg" -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug, or are watching someone who is.
https://bugzilla.novell.com/show_bug.cgi?id=241368 ------- Comment #3 from mfabian@novell.com 2007-02-02 01:35 MST ------- Created an attachment (id=116988) --> (https://bugzilla.novell.com/attachment.cgi?id=116988&action=view) lsusb-v output of 'lsusb -v'. -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug, or are watching someone who is.
https://bugzilla.novell.com/show_bug.cgi?id=241368 ------- Comment #4 from mfabian@novell.com 2007-02-02 01:41 MST ------- Created an attachment (id=116991) --> (https://bugzilla.novell.com/attachment.cgi?id=116991&action=view) dmesg The output of 'dmesg'. -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug, or are watching someone who is.
https://bugzilla.novell.com/show_bug.cgi?id=241368 ------- Comment #5 from mfabian@novell.com 2007-02-02 01:42 MST ------- Oliver Neukum> These messages usually mean that you are operating near Oliver Neukum> the limit of power the hub supports. By the way, the USB harddisk I have connected is a 3.5 inch harddisk and has an external powersupply, it is not one of these small types which get all their power from USB. -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug, or are watching someone who is.
https://bugzilla.novell.com/show_bug.cgi?id=241368 ------- Comment #6 from oneukum@novell.com 2007-02-02 02:30 MST ------- According to the logs you also have a card reader connected. Did you forget or is something odd happening? The complaining hub is not external or the one built into your keyboard but the root hub on your motherboard. Are you operating one of these USB fans or lamps? -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug, or are watching someone who is.
https://bugzilla.novell.com/show_bug.cgi?id=241368 ------- Comment #7 from oneukum@novell.com 2007-02-02 03:09 MST ------- Do you have any dangling cables plugged into your motherboard's ports? -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug, or are watching someone who is.
https://bugzilla.novell.com/show_bug.cgi?id=241368 ------- Comment #8 from mfabian@novell.com 2007-02-02 03:17 MST ------- Oliver Neukum> According to the logs you also have a card reader Oliver Neukum> connected. Did you forget or is something odd Oliver Neukum> happening? I just forgot that. This card reader came with the Computer when I bought it, it is installed in a 3.5 inch slot just below the floppy disk. I never used that card reader, therefore I forgot it. Oliver Neukum> The complaining hub is not external or the one built Oliver Neukum> into your keyboard but the root hub on your Oliver Neukum> motherboard. Are you operating one of these USB fans or Oliver Neukum> lamps? No. Oliver Neukum> Do you have any dangling cables plugged into your Oliver Neukum> motherboard's ports? You mean the USB ports, I guess. No, there are no dangling cables. -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug, or are watching someone who is.
https://bugzilla.novell.com/show_bug.cgi?id=241368 ------- Comment #9 from oneukum@novell.com 2007-02-02 05:17 MST ------- How many USB ports do you have in your computer and how many are unused? -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug, or are watching someone who is.
https://bugzilla.novell.com/show_bug.cgi?id=241368 ------- Comment #10 from mfabian@novell.com 2007-02-02 06:59 MST ------- I'm in the office now and the computer is at home, therefore I cannot look at the machine (I can access it via the network though). Therefore this is from memory: 4 USB sockets are at the backside of the machine, one of them is used for the hardisc, the other for the keyboard. The mouse is plugged into the USB hub built into the keyboard. Another USB socket is at the front side of the computer build into the case of the card reader. There I have connected the USB headset. I.e. I think I have 5 sockets total at the machine and 3 are used. -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug, or are watching someone who is.
https://bugzilla.novell.com/show_bug.cgi?id=241368 ------- Comment #11 from mfabian@novell.com 2007-02-02 18:00 MST ------- I checked when I returned home and found that comment #10 is correct. -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug, or are watching someone who is.
https://bugzilla.novell.com/show_bug.cgi?id=241368 ------- Comment #12 from oneukum@novell.com 2007-02-05 02:12 MST ------- The controller thinks it has 8 ports and the overcurrent condition happens only on two of them. This looks suspiciously like a short-circuit. -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug, or are watching someone who is.
https://bugzilla.novell.com/show_bug.cgi?id=241368 ------- Comment #13 from mfabian@novell.com 2007-02-06 06:51 MST ------- I experimented again today and found that the USB headset seems to cause the problem after all. That is weird because in comment #0 I wrote that I had added the headseat after updating to openSUSE 10.2 and the problems were there already with SUSE Linux 10.1. Certainly the problems were ther with SUSE Linux 10.1 but maybe I dindn't remember correctly when I added the USB headset. Anyway, I found now - the messages go away if I unplug the USB headset. - it doesn't matter to which USB socket I connect the USB headset the messages appear always when it is connected - I have tried to remove the other USB devices (Keyboard, mouse, USB harddisk). This doesn't help, as soon as the USB headset is connected, the messages appear. - I thought that the USB headset might be damaged. I have 3 of these USB headset which are exactly the same brand and model. I tried one of the others and the same messages appeared. - I have another one of these headsets connected to the computer in my office, there the messages do *not* appear. So what is the problem? Is there a design problem with the headset? Then why does it work in the office? Or has my computer at home much less power on the USB ports then the computer in my office? Would adding a USB hub with extra power and connecting the headset to such a hub solve the problem? -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug, or are watching someone who is.
https://bugzilla.novell.com/show_bug.cgi?id=241368 ------- Comment #14 from oneukum@novell.com 2007-02-06 07:01 MST -------
Would adding a USB hub with extra power and connecting the headset to such a hub solve the problem?
That is likely. -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug, or are watching someone who is.
https://bugzilla.novell.com/show_bug.cgi?id=241368 ------- Comment #15 from mfabian@novell.com 2007-02-06 10:32 MST ------- In the office I am using an USB 1.1 4x hub *without* extra power, which is of course connected only to one USB socket in the computer. USB Headset, mouse, and keyboard are connected to this hub. This works and I don't get the "overcurrent" messages in /var/log/messages. Why does this work? Isn't more electrical power drawn from the USB socket in the computer in my office because it has to supply mouse and keyboard in addition to the headset? -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug, or are watching someone who is.
https://bugzilla.novell.com/show_bug.cgi?id=241368 ------- Comment #16 from oneukum@novell.com 2007-02-07 02:50 MST ------- Does it have a card reader? -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug, or are watching someone who is.
https://bugzilla.novell.com/show_bug.cgi?id=241368 ------- Comment #17 from mfabian@novell.com 2007-02-07 02:55 MST ------- No, there is no card reader in the machine in my office. Are card readers problematic? -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug, or are watching someone who is.
https://bugzilla.novell.com/show_bug.cgi?id=241368 ------- Comment #18 from oneukum@novell.com 2007-02-07 06:10 MST ------- Generally not, but they draw power. Computers differ a bit. A marginal power consumption may be OK on one computer and it may be too much on another computer with more ports and more devices. -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug, or are watching someone who is.
https://bugzilla.novell.com/show_bug.cgi?id=241368 ------- Comment #19 from mfabian@novell.com 2007-02-09 09:34 MST ------- I don't yet have a USB hub with extra power. But I have a 4 port USB hub which has an Y-shaped cable to be plugged into 2 USB sockets at the computer. I thought that this might double the power available for the Headset if I connect the Headset to this hub. But it didn't help, the messages in /var/log/messages are still the same. I'll order a PCI card with a 5 port USB hub and see whether that helps. I hope that such a type of hub should gets enough power via the PCI bus so I can avoid yet another external power supply. -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug, or are watching someone who is.
https://bugzilla.novell.com/show_bug.cgi?id=241368 ------- Comment #20 from mfabian@novell.com 2007-02-13 19:07 MST ------- The PCI card with the 5 port USB hub arrived and I tried it today. Unfortunately it didn't solve the problem because my machine didn't even boot anymore when the card was installed. The last messages which showed up on the console while booting had something to do with "...new USB device found..." Then the boot process stopped. Apparently the machine was completely frozen because I could not toggle the Numlock LED with the Numlock Key anymore. This was possible during the boot process until the time when the boot process stopped when it became impossible (I tried that a few times, it was repeatable). Then I removed the card again because I needed the computer. I have been told that removing some other cards (for example a SCSI adapter I don't need anymore) and trying other PCI slots might make a difference. I'll try that tomorrow. -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug, or are watching someone who is.
https://bugzilla.novell.com/show_bug.cgi?id=241368 oneukum@novell.com changed: What |Removed |Added ---------------------------------------------------------------------------- Status|ASSIGNED |RESOLVED Resolution| |INVALID ------- Comment #21 from oneukum@novell.com 2007-02-28 05:57 MST ------- Considering to other failures bug reports from this machine are not reliable. I suggest you get a more powerfull power supply. -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug, or are watching someone who is.
https://bugzilla.novell.com/show_bug.cgi?id=241368 ------- Comment #22 from mfabian@novell.com 2007-05-07 07:59 MST ------- It took a long time until I got around doing that, but yesterday I finally removed the SCSI adapter and added a the PCI card with the 5 port USB hub again (which I mentioned in comment #20). Now, the machine *did* boot without problems and the error messages "... over-current change on port ..." do *not* appear anymore in /var/log/messages. I think this is quite weird because all I did is to remove the SCSI card and insert the USB Hub PCI card. The USB Hub PCI card is *not* used, all USB devices are still connected to the USB ports on the mainboard. Nevertheless the error messages are gone. -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug, or are watching someone who is.
https://bugzilla.novell.com/show_bug.cgi?id=241368 ------- Comment #23 from oneukum@novell.com 2007-05-08 01:56 MST ------- I still blame your power supply. -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug, or are watching someone who is.
https://bugzilla.novell.com/show_bug.cgi?id=241368 ------- Comment #24 from mfabian@novell.com 2007-05-08 04:33 MST ------- You mean the power supply of the whole machine? If that is too weak, shouldn't I experience many other problems as well? -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug, or are watching someone who is.
participants (1)
-
bugzilla_noreply＠novell.com