On Fri, 24 Jun 2011, M. Steven Ginn wrote: > ok I rebooted and here is an excerpt of my syslog showing the system trying to setup my four drives via the USB 3.0 to esata device: Skipping a lot of stuff... > Jun 24 10:53:20 xbmcS64 kernel: [42038.326010] scsi 7:0:0:0: Direct-Access WDC WD20 EARS-00MVWB0 PQ: 0 ANSI: 2 CCS > Jun 24 10:53:20 xbmcS64 kernel: [42038.326365] scsi 7:0:0:1: Direct-Access ST315003 41AS PQ: 0 ANSI: 2 CCS > Jun 24 10:53:20 xbmcS64 kernel: [42038.326764] scsi 7:0:0:2: Direct-Access ST315003 41AS PQ: 0 ANSI: 2 CCS > Jun 24 10:53:20 xbmcS64 kernel: [42038.327091] scsi 7:0:0:3: Direct-Access Hitachi HDS5C3020ALA632 PQ: 0 ANSI: 2 CCS > Jun 24 10:53:20 xbmcS64 kernel: [42038.327401] scsi 7:0:0:4: Direct-Access 0 As R > n '(8\S0 PQ: 0 ANSI: 2 CCS This certainly looks suspicious. It appears that the drive has four internal disks but for some reason the computer thinks it has five. > Jun 24 10:53:20 xbmcS64 kernel: [42038.328361] sd 7:0:0:0: [sdg] 3907029168 512-byte logical blocks: (2.00 TB/1.81 TiB) > Jun 24 10:53:20 xbmcS64 kernel: [42038.330817] sd 7:0:0:1: [sdh] 2930277168 512-byte logical blocks: (1.50 TB/1.36 TiB) > Jun 24 10:53:20 xbmcS64 kernel: [42038.334959] sd 7:0:0:2: [sdi] 2930277168 512-byte logical blocks: (1.50 TB/1.36 TiB) > Jun 24 10:53:20 xbmcS64 kernel: [42038.335308] sd 7:0:0:4: [sdk] Very big device. Trying to use READ CAPACITY(16). > Jun 24 10:53:20 xbmcS64 kernel: [42038.335487] sd 7:0:0:3: [sdj] 3907029168 512-byte logical blocks: (2.00 TB/1.81 TiB) > Jun 24 10:53:20 xbmcS64 kernel: [42038.337206] sd 7:0:0:4: [sdk] 281474976710656 512-byte logical blocks: (144 PB/128 PiB) The last one (sdk) obviously is garbage. No wonder it doesn't work right. Instead of working on xhci-hcd debugging, I suggest using usbmon. See the instructions in the kernel source file Documentation/usb/usbmon.txt. Alan Stern -- 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
