RE: usb device getting disconnected
Hi Alen/Peter , I do get the following error while the system is up and running . Basically the USB device get disconnected . Any insight into the problem ? [160549.977172] hub 2-1:1.0: state 7 ports 6 chg evt 0010^M [160549.977275] ehci_hcd :00:1d.0: detected XactErr len 0/4096 retry 1^M [160549.977400] ehci_hcd :00:1d.0: detected XactErr len 0/4096 retry 2^M [160549.977524] ehci_hcd :00:1d.0: detected XactErr len 0/4096 retry 3^M [160549.977528] hub 2-1:1.0: port 4, status 0100, change 0001, 12 Mb/s^M [160549.977650] ehci_hcd :00:1d.0: detected XactErr len 0/4096 retry 4^M [160549.977652] usb 2-1.4: USB disconnect, address 3^M [160549.977654] usb 2-1.4: unregistering device^M [160549.977656] usb 2-1.4: unregistering interface 2-1.4:1.0^M [160549.92] ehci_hcd :00:1d.0: detected XactErr len 0/4096 retry 5^M [160549.977897] ehci_hcd :00:1d.0: detected XactErr len 0/4096 retry 6^M [160549.978020] ehci_hcd :00:1d.0: detected XactErr len 0/4096 retry 7^M [160549.978146] ehci_hcd :00:1d.0: detected XactErr len 0/4096 retry 8^M [160549.978269] ehci_hcd :00:1d.0: detected XactErr len 0/4096 retry 9^M [160549.978394] ehci_hcd :00:1d.0: detected XactErr len 0/4096 retry 10^M [160549.978519] ehci_hcd :00:1d.0: detected XactErr len 0/4096 retry 11^M [160549.978644] ehci_hcd :00:1d.0: detected XactErr len 0/4096 retry 12^M [160549.978770] ehci_hcd :00:1d.0: detected XactErr len 0/4096 retry 13^M [160549.978894] ehci_hcd :00:1d.0: detected XactErr len 0/4096 retry 14^M [160549.979018] ehci_hcd :00:1d.0: detected XactErr len 0/4096 retry 15^M [160549.979144] ehci_hcd :00:1d.0: detected XactErr len 0/4096 retry 16^M [160549.979269] ehci_hcd :00:1d.0: detected XactErr len 0/4096 retry 17^M [160549.979393] ehci_hcd :00:1d.0: detected XactErr len 0/4096 retry 18^M [160549.979517] ehci_hcd :00:1d.0: detected XactErr len 0/4096 retry 19^M [160549.979642] ehci_hcd :00:1d.0: detected XactErr len 0/4096 retry 20^M [160549.979768] ehci_hcd :00:1d.0: detected XactErr len 0/4096 retry 21^M [160549.979892] ehci_hcd :00:1d.0: detected XactErr len 0/4096 retry 22^M [160549.980016] ehci_hcd :00:1d.0: detected XactErr len 0/4096 retry 23^M [160549.980142] ehci_hcd :00:1d.0: detected XactErr len 0/4096 retry 24^M [160549.980266] ehci_hcd :00:1d.0: detected XactErr len 0/4096 retry 25^M [160549.980391] ehci_hcd :00:1d.0: detected XactErr len 0/4096 retry 26^M [160549.980516] ehci_hcd :00:1d.0: detected XactErr len 0/4096 retry 27^M Regards, Shaiju. -Original Message- From: Alan Stern [mailto:st...@rowland.harvard.edu] Sent: Sunday, July 29, 2012 2:54 PM To: shaiju shaiju Cc: 'Sadasivan Shaiju'; 'Peter Chen'; 'USB list' Subject: RE: usb device getting disconnected and connect back again. On Sun, 29 Jul 2012, shaiju shaiju wrote: Hi Alen, This error is intermittent . It doesn't happen always . Then there may not be any way to determine the cause. Perhaps the firmware in the USB device intermittently crashes. Alan Stern -- To unsubscribe from this list: send the line unsubscribe linux-usb in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
Re: usb device getting disconnected
[160549.977524] ehci_hcd :00:1d.0: detected XactErr len 0/4096 retry 3^M [160549.977528] hub 2-1:1.0: port 4, status 0100, change 0001, 12 Mb/s^M [160549.977650] ehci_hcd :00:1d.0: detected XactErr len 0/4096 retry 4^M [160549.977652] usb 2-1.4: USB disconnect, address 3^M [160549.977654] usb 2-1.4: unregistering device^M [160549.977656] usb 2-1.4: unregistering interface 2-1.4:1.0^M [160549.92] ehci_hcd :00:1d.0: detected XactErr len 0/4096 retry 5^M [160549.977897] ehci_hcd :00:1d.0: detected XactErr len 0/4096 retry 6^M [160549.978020] ehci_hcd :00:1d.0: detected XactErr len 0/4096 retry 7^M [160549.978146] ehci_hcd :00:1d.0: detected XactErr len 0/4096 retry 8^M [160549.978269] ehci_hcd :00:1d.0: detected XactErr len 0/4096 retry 9^M [160549.978394] ehci_hcd :00:1d.0: detected XactErr len 0/4096 retry 10^M [160549.978519] ehci_hcd :00:1d.0: detected XactErr len 0/4096 retry 11^M [160549.978644] ehci_hcd :00:1d.0: detected XactErr len 0/4096 retry 12^M [160549.978770] ehci_hcd :00:1d.0: detected XactErr len 0/4096 retry 13^M [160549.978894] ehci_hcd :00:1d.0: detected XactErr len 0/4096 retry 14^M [160549.979018] ehci_hcd :00:1d.0: detected XactErr len 0/4096 retry 15^M [160549.979144] ehci_hcd :00:1d.0: detected XactErr len 0/4096 retry 16^M [160549.979269] ehci_hcd :00:1d.0: detected XactErr len 0/4096 retry 17^M [160549.979393] ehci_hcd :00:1d.0: detected XactErr len 0/4096 retry 18^M [160549.979517] ehci_hcd :00:1d.0: detected XactErr len 0/4096 retry 19^M [160549.979642] ehci_hcd :00:1d.0: detected XactErr len 0/4096 retry 20^M [160549.979768] ehci_hcd :00:1d.0: detected XactErr len 0/4096 retry 21^M [160549.979892] ehci_hcd :00:1d.0: detected XactErr len 0/4096 retry 22^M [160549.980016] ehci_hcd :00:1d.0: detected XactErr len 0/4096 retry 23^M [160549.980142] ehci_hcd :00:1d.0: detected XactErr len 0/4096 retry 24^M [160549.980266] ehci_hcd :00:1d.0: detected XactErr len 0/4096 retry 25^M [160549.980391] ehci_hcd :00:1d.0: detected XactErr len 0/4096 retry 26^M [160549.980516] ehci_hcd :00:1d.0: detected XactErr len 0/4096 retry 27^M Regards, Shaiju. -Original Message- From: Alan Stern [mailto:st...@rowland.harvard.edu] Sent: Sunday, July 29, 2012 2:54 PM To: shaiju shaiju Cc: 'Sadasivan Shaiju'; 'Peter Chen'; 'USB list' Subject: RE: usb device getting disconnected and connect back again. On Sun, 29 Jul 2012, shaiju shaiju wrote: Hi Alen, This error is intermittent . It doesn't happen always . Then there may not be any way to determine the cause. Perhaps the firmware in the USB device intermittently crashes. If the host has some errors, such like the PHY work abnormal, it will also occur errors like this. It is hard to debug your problem, I suggestion try more boards and do more tests to see if it is single board issue or the issues for all boards. Alan Stern -- To unsubscribe from this list: send the line unsubscribe linux-usb in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
RE: usb device getting disconnected and connect back again.
Hi Alan, Here is the full log . During a reboot the usb device is enumerated in High speed (480 Mb/s) . The it change status to full Speed (12 Mb/s) followed by a disconnect . After this the device is again enumerated back in High speed . [0.971658] ehci_hcd :00:1a.7: GetStatus port 2 status 001803 POWER sig=j CSC CONNECT [0.971664] hub 1-0:1.0: port 2: status 0501 change 0001 [0.985953] hub 2-0:1.0: state 7 ports 6 chg evt [1.070025] hub 1-0:1.0: state 7 ports 6 chg 0004 evt [1.070033] hub 1-0:1.0: port 2, status 0501, change , 480 Mb/s [1.121455] ehci_hcd :00:1a.7: port 2 high speed [1.121459] ehci_hcd :00:1a.7: GetStatus port 2 status 001005 POWER sig=se0 PE CONNECT [1.161029] ata1: SATA link down (SStatus 0 SControl 310) [1.172026] usb 1-2: new high speed USB device using ehci_hcd and address 2 [1.223323] ehci_hcd :00:1a.7: port 2 high speed [1.223327] ehci_hcd :00:1a.7: GetStatus port 2 status 001005 POWER sig=se0 PE CONNECT [1.287204] usb 1-2: default language 0x0409 [1.288080] usb 1-2: udev 2, busnum 1, minor = 1 [1.288083] usb 1-2: New USB device found, idVendor=0e39, idProduct=2b00 [1.288086] usb 1-2: New USB device strings: Mfr=1, Product=2, SerialNumber=3 [1.288089] usb 1-2: Product: eUSB [1.288097] usb 1-2: Manufacturer: SMART [1.288099] usb 1-2: SerialNumber: 23156507103421210411 [1.288196] usb 1-2: usb_probe_device [1.288199] usb 1-2: configuration #1 chosen from 1 choice [1.288331] usb 1-2: adding 1-2:1.0 (config #1, interface 0) [1.288409] usb-storage 1-2:1.0: usb_probe_interface [1.288414] usb-storage 1-2:1.0: usb_probe_interface - got id [1.288463] scsi4 : SCSI emulation for USB Mass Storage devices [1.288547] usb-storage: device found at 2 [1.288548] usb-storage: waiting for device to settle before scanning .. [ 47.261779] hub 8-0:1.0: local power source is good [ 47.261781] hub 8-0:1.0: trying to enable port power on non-switchable hub [ 47.261799] /scratch/abwaheed/asr/thr_0618/os/linux/drivers/usb/core/inode.c: creating file '001' [ 47.356165] uhci_hcd :00:1a.0: port 2 portsc 0082,00 [ 47.358026] hub 4-0:1.0: state 7 ports 2 chg evt [ 47.359329] hub 5-0:1.0: state 7 ports 2 chg evt [ 47.360184] hub 6-0:1.0: state 7 ports 2 chg evt [ 47.360188] hub 7-0:1.0: state 7 ports 2 chg evt [ 47.361181] hub 8-0:1.0: state 7 ports 2 chg evt [ 47.456243] hub 3-0:1.0: state 7 ports 2 chg evt [ 48.454151] usb usb4: suspend_rh (auto-stop) [ 48.454174] usb usb5: suspend_rh (auto-stop) [ 48.454194] usb usb6: suspend_rh (auto-stop) [ 48.454219] usb usb7: suspend_rh (auto-stop) [ 48.454238] usb usb8: suspend_rh (auto-stop) [ 48.454257] usb usb3: suspend_rh (auto-stop) . [ 157.150578] hub 1-0:1.0: state 7 ports 6 chg evt 0004 [ 157.150593] ehci_hcd :00:1a.7: GetStatus port 2 status 001002 POWER sig=se0 CSC [ 157.150604] hub 1-0:1.0: port 2, status 0100, change 0001, 12 Mb/s [ 157.150608] usb 1-2: USB disconnect, address 2 [ 157.150611] usb 1-2: unregistering device [ 157.150614] usb 1-2: unregistering interface 1-2:1.0 [ 208.704131] sd 4:0:0:0: Device offlined - not ready after error recovery [ 208.704158] sd 4:0:0:0: [sda] Unhandled error code [ 208.704160] sd 4:0:0:0: [sda] Result: hostbyte=DID_NO_CONNECT driverbyte=DRIVER_OK [ 208.704164] sd 4:0:0:0: [sda] CDB: Write(10): 2a 00 00 00 00 21 00 00 08 00 [ 208.704189] sd 4:0:0:0: [sda] Unhandled error code [ 208.704191] sd 4:0:0:0: [sda] Result: hostbyte=DID_NO_CONNECT driverbyte=DRIVER_OK [ 208.704194] sd 4:0:0:0: [sda] CDB: Write(10): 2a 00 00 1c 00 21 00 00 08 00 [ 208.821178] usb 1-2: usb_disable_device nuking all URBs [ 208.889097] ehci_hcd :00:1a.7: GetStatus port 2 status 001803 POWER sig=j CSC CONNECT [ 208.993049] hub 1-0:1.0: debounce: port 2: total 100ms stable 100ms status 0x501 [ 209.044332] ehci_hcd :00:1a.7: port 2 high speed [ 209.044339] ehci_hcd :00:1a.7: GetStatus port 2 status 001005 POWER sig=se0 PE CONNECT [ 209.095081] usb 1-2: new high speed USB device using ehci_hcd and address 3 [ 209.146326] ehci_hcd :00:1a.7: port 2 high speed [ 209.146332] ehci_hcd :00:1a.7: GetStatus port 2 status 001005 POWER sig=se0 PE CONNECT [ 209.154428] Pid: 9087, comm: find Tainted: P 2.6.32.39 #3 [ 209.154431] Call Trace: [ 209.154439] [81042364] ? warn_slowpath_common+0x76/0x8c [ 209.154442] [810efa0b] ? mark_buffer_dirty+0x23/0x80 [ 209.154447] [81135c57] ? ext2_sync_super+0x37/0x4f [ 209.154451] [811361d8] ? ext2_put_super+0x5c/0x10c [ 209.154455] [810d23c1] ? generic_shutdown_super+0x4f/0xc5 [ 209.154458] [810d2457] ? kill_block_super+0x20/0x35
RE: usb device getting disconnected and connect back again.
Hi Alen, This error is intermittent . It doesn't happen always . Regards, Shaiju. -Original Message- From: Alan Stern [mailto:st...@rowland.harvard.edu] Sent: Sunday, July 29, 2012 2:39 PM To: shaiju shaiju Cc: 'Sadasivan Shaiju'; 'Peter Chen'; 'USB list' Subject: RE: usb device getting disconnected and connect back again. On Sun, 29 Jul 2012, shaiju shaiju wrote: Hi Alan, Here is the full log . During a reboot the usb device is enumerated in High speed (480 Mb/s) . The it change status to full Speed (12 Mb/s) followed by a disconnect . After this the device is again enumerated back in High speed . This happened because the device got into some sort of error state. Perhaps its firmware crashed. If you collect a usbmon trace, that might give a clue as to the reason. Alan Stern -- To unsubscribe from this list: send the line unsubscribe linux-usb in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
RE: usb device getting disconnected and connect back again.
On Sun, 29 Jul 2012, shaiju shaiju wrote: Hi Alen, This error is intermittent . It doesn't happen always . Then there may not be any way to determine the cause. Perhaps the firmware in the USB device intermittently crashes. Alan Stern -- To unsubscribe from this list: send the line unsubscribe linux-usb in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
