Hi all, I recently purchased a trekstor i.beat vision mp3 player(flash based, 512 MB), which behaves like a common usb-storage device when plugged in(usb 2.0 that is) and therefore shouldn't make any trouble when used with linux. First of all, i connected it to several other machines, some running windows, some running linux(2.6.11.x) where it worked flawlessly, so the player itself is alright. Each time i connect it to my machine, which runs an unmodified 2.6.12.3 kernel(on top of debian unstable), i get the following output with dmesg(i disabled verbose output because i couldn't get any info from it and will re-enable it if you think it helps tracking down the problem).
####################################################################### ohci_hcd 0000:00:02.1: wakeup usb 2-3: new full speed USB device using ohci_hcd and address 30 usb 2-3: device descriptor read/64, error -110 usb 3-6: new high speed USB device using ehci_hcd and address 46 scsi23 : SCSI emulation for USB Mass Storage devices usb-storage: device found at 46 usb-storage: waiting for device to settle before scanning Vendor: EXPRESS Model: EXPRESS Rev: PMAP Type: Direct-Access ANSI SCSI revision: 00 SCSI device sdb: 978944 512-byte hdwr sectors (501 MB) sdb: Write Protect is off sdb: Mode Sense: 23 00 00 00 sdb: assuming drive cache: write through SCSI device sdb: 978944 512-byte hdwr sectors (501 MB) sdb: Write Protect is off sdb: Mode Sense: 23 00 00 00 sdb: assuming drive cache: write through sdb: sdb1 Attached scsi removable disk sdb at scsi23, channel 0, id 0, lun 0 Attached scsi generic sg1 at scsi23, channel 0, id 0, lun 0, type 0 usb-storage: device scan complete printk: 6218 messages suppressed. Buffer I/O error on device sdb1, logical block 992000 Buffer I/O error on device sdb1, logical block 992001 Buffer I/O error on device sdb1, logical block 992002 Buffer I/O error on device sdb1, logical block 992003 Buffer I/O error on device sdb1, logical block 992004 Buffer I/O error on device sdb1, logical block 992005 Buffer I/O error on device sdb1, logical block 992006 Buffer I/O error on device sdb1, logical block 992007 Buffer I/O error on device sdb1, logical block 992000 Buffer I/O error on device sdb1, logical block 992001 ####################################################################### I dont get this Buffer I/O errors on my 2.6.11.x kernel, so i guess its related to my current kernel config (which i'll gladly supply if its considerd helpful) sometimes, when putting song on the device, i also get the folling, which sounds quite bad: ####################################################################### printk: 6 messages suppressed. Buffer I/O error on device sdb1, logical block 978871 lost page write due to I/O error on sdb1 Buffer I/O error on device sdb1, logical block 978872 lost page write due to I/O error on sdb1 Buffer I/O error on device sdb1, logical block 978873 lost page write due to I/O error on sdb1 Buffer I/O error on device sdb1, logical block 978874 lost page write due to I/O error on sdb1 Buffer I/O error on device sdb1, logical block 978875 lost page write due to I/O error on sdb1 Buffer I/O error on device sdb1, logical block 978876 lost page write due to I/O error on sdb1 Buffer I/O error on device sdb1, logical block 978877 lost page write due to I/O error on sdb1 Buffer I/O error on device sdb1, logical block 978878 lost page write due to I/O error on sdb1 Buffer I/O error on device sdb1, logical block 978879 lost page write due to I/O error on sdb1 Buffer I/O error on device sdb1, logical block 978880 lost page write due to I/O error on sdb1 ####################################################################### This sometimes results in filesystem corruption (fat16 btw) and i have to reformat the flash memory. My machine's usb-controller is by nvidia(nforce 2 / asus a7n8x-e deluxe). Thank you in advance for helping out, Gian Ghodrat ------------------------------------------------------- SF.Net email is Sponsored by the Better Software Conference & EXPO September 19-22, 2005 * San Francisco, CA * Development Lifecycle Practices Agile & Plan-Driven Development * Managing Projects & Teams * Testing & QA Security * Process Improvement & Measurement * http://www.sqe.com/bsce5sf _______________________________________________ Linux-usb-users@lists.sourceforge.net To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-users
