(switched to email. Please respond via emailed reply-to-all, not via the bugzilla web interface). It's a post-2.6.30 regression. On Fri, 3 Jul 2009 21:13:32 GMT bugzilla-daemon@xxxxxxxxxxxxxxxxxxx wrote: > http://bugzilla.kernel.org/show_bug.cgi?id=13700 > > Summary: usb error flood in dmesg, makes kde use plenty of cpu > - bisected > Product: Drivers > Version: 2.5 > Kernel Version: 2.6.30-rc1 and later > Platform: All > OS/Version: Linux > Tree: Mainline > Status: NEW > Severity: normal > Priority: P1 > Component: USB > AssignedTo: greg@xxxxxxxxx > ReportedBy: jouni.susiluoto@xxxxxxxxxxx > Regression: Yes > > > Created an attachment (id=22197) > --> (http://bugzilla.kernel.org/attachment.cgi?id=22197) > lsusb -v from nonworking system > > With all kernels after (copied from git-bisect...) > > > 54530bded6ecf22d683423b66fc3cd6dddb249aa is first bad commit > commit 54530bded6ecf22d683423b66fc3cd6dddb249aa > Author: Takashi Iwai <tiwai@xxxxxxx> > Date: Thu Feb 5 15:55:18 2009 +0100 > > ALSA: usb - Add missing KERN_* prefix to printk > > Signed-off-by: Takashi Iwai <tiwai@xxxxxxx> > > :040000 040000 c9808b346d4581fd1c6df76a7a00ad29853a6250 > 5ab0b206b85c5b54c6a5809b4d14c1a86778442b M sound I think the bisect went wrong :( That patch doesn't really do anything. > > I get the following errors in dmesg: > > > [ 9009.206070] usb 5-2: new low speed USB device using uhci_hcd and address 101 > [ 9009.365159] usb 5-2: string descriptor 0 read error: -32 > [ 9009.387159] usb 5-2: New USB device found, idVendor=043e, idProduct=9802 > [ 9009.387167] usb 5-2: New USB device strings: Mfr=0, Product=1, > SerialNumber=0 > [ 9009.387314] usb 5-2: configuration #1 chosen from 1 choice > [ 9009.395821] usb 5-2: can't set config #1, error -71 > [ 9009.395931] usb 5-2: USB disconnect, address 101 > [ 9009.956068] usb 5-2: new low speed USB device using uhci_hcd and address 102 > [ 9010.115158] usb 5-2: string descriptor 0 read error: -32 > [ 9010.134159] usb 5-2: New USB device found, idVendor=043e, idProduct=9802 > [ 9010.134166] usb 5-2: New USB device strings: Mfr=0, Product=1, > SerialNumber=0 > [ 9010.134322] usb 5-2: configuration #1 chosen from 1 choice > [ 9010.138154] usb 5-2: can't set config #1, error -71 > [ 9010.138273] usb 5-2: USB disconnect, address 102 > > > With a working kernel, like 2.6.29.5, the the usb section 5-2 reads: > > > [ 6.878042] usb 5-2: new low speed USB device using uhci_hcd and address 2 > [ 7.037499] usb 5-2: string descriptor 0 read error: -32 > [ 7.037546] usb 5-2: New USB device found, idVendor=043e, idProduct=9802 > [ 7.037549] usb 5-2: New USB device strings: Mfr=0, Product=1, > SerialNumber=0 > [ 7.040584] usb 5-2: configuration #1 chosen from 1 choice > > lsusb for 2.6.29.5 is: > > > Bus 005 Device 002: ID 043e:9802 LG Electronics USA, Inc. > Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub > Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub > Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub > Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub > Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub > > and for later kernels, it is the same, but the first line is completely > missing. > > Attached are lsusb -v from both nonworking and working systems, and .config of > the latest tested nonworking kernel version, 2.6.31-rc1-git3. -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
