Re: Problems with connect/disconnect cycles

[Norbert Preining <preining@logic.at>]

Hi USB developers, hi Andrew!

On Mon, 21 Mär 2005, preining wrote:
> Dear usb developers, dear Andrew!
> 
> I found that my builtin sd card reader connected via USB port
> experiences several connect/reconnect cycles every time I boot.
> 
> I am using 2.6.11-mm4.

Same now with 2.6.13-rc6-mm1. This time it got really bad:

Aug 20 14:00:19 gandalf vmunix: usb 2-2: USB disconnect, address 2
Aug 20 14:00:19 gandalf kernel: usb 2-2: new full speed USB device using uhci_hcd and address 3
Aug 20 14:00:19 gandalf kernel: scsi1 : SCSI emulation for USB Mass Storage devices
Aug 20 14:00:19 gandalf kernel: usb-storage: device found at 3
Aug 20 14:00:19 gandalf kernel: usb-storage: waiting for device to settle before scanning
Aug 20 14:00:21 gandalf usb.agent[6109]:      usb-storage: already loaded
Aug 20 14:00:24 gandalf vmunix:   Vendor: Generic   Model: Flash R/W         Rev: 2002
Aug 20 14:00:24 gandalf vmunix:   Type:   Direct-Access                      ANSI SCSI revision: 02
Aug 20 14:00:24 gandalf vmunix: Attached scsi removable disk sda at scsi1, channel 0, id 0, lun 0
Aug 20 14:00:24 gandalf kernel: usb-storage: device scan complete
Aug 20 14:00:26 gandalf scsi.agent[6154]:      sd_mod: loaded successfully (for disk)

....

Aug 21 01:55:44 gandalf vmunix: usb 2-2: USB disconnect, address 32
Aug 21 01:55:44 gandalf kernel: usb 2-2: new full speed USB device using uhci_hcd and address 33
Aug 21 01:55:44 gandalf kernel: scsi32 : SCSI emulation for USB Mass Storage devices
Aug 21 01:55:44 gandalf kernel: usb-storage: device found at 33
Aug 21 01:55:44 gandalf kernel: usb-storage: waiting for device to settle before scanning
Aug 21 01:55:47 gandalf usb.agent[17503]:      usb-storage: already loaded
Aug 21 01:55:49 gandalf vmunix:   Vendor: Generic   Model: Flash R/W         Rev: 2002
Aug 21 01:55:49 gandalf vmunix:   Type:   Direct-Access                      ANSI SCSI revision: 02
Aug 21 01:55:49 gandalf kernel: Attached scsi removable disk sda at scsi32, channel 0, id 0, lun 0
Aug 21 01:55:49 gandalf vmunix: usb-storage: device scan complete
Aug 21 01:55:50 gandalf scsi.agent[17544]:      sd_mod: loaded successfully (for disk)


uuu, now many of these

Aug 21 02:09:18 gandalf vmunix:     ACPI-0131: *** Error: Invalid owner_id: 00


and many many more of these:

Aug 21 03:07:19 gandalf vmunix:     ACPI-0096: *** Error: Could not allocate new owner_id (32 max), AE_OWNER_ID_LIMIT



Unfortunately I cannot in any way track down this problem to specific
kernels, or specific work situations. It sometimes happens, sometimes
not. 

If anyone has any idea how to debug such a stupid problem, I would be
glad. 

Best wishes

Norbert

-------------------------------------------------------------------------------
Dr. Norbert Preining <preining AT logic DOT at>             Università di Siena
sip:preining@at43.tuwien.ac.at                             +43 (0) 59966-690018
gpg DSA: 0x09C5B094      fp: 14DF 2E6C 0307 BE6D AD76  A9C0 D2BF 4AA3 09C5 B094
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