-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA512 Hello Alan, On Thu, 2016-08-11 at 23:12 +0530, Ritesh Raj Sarraf wrote: > On Thu, 2016-08-11 at 13:01 -0400, Alan Stern wrote: > > > I guess so. I get frequent resets on my USB port for some of the hardware. > > > > > > kernel: usb 2-1: reset high-speed USB device number 17 using xhci_hcd > > > > > > I initially thought of this to be a faulty cable. But the same cable works > > fine > > > on another laptop. > > > > There could be bad cabling inside the computer. > > > > Well. THis machine still has Windows 8.1 lying on a partition, what it came > pre- > installed with. > > I can try out both, the USB resets and the Card Reader tests, under Windows. > I'll report back my findings on this email tomorrow. Hopefully we'll have > enough > information to conclude if it is a bug or a faulty hardware. So I booted into Windows 8.1 and tried to access an SDCard over the Card Reader. I was able to see the drive and read the content in it. I did check for relevant messages in the Windows Event Log but couldn't find anything relevant. Then I tried the same under Linux and ran into some more descriptive errors. Please note that these errors were seen while running on AC Power. I seem to be getting too many of these errors, too frequently, like every 10 seconds. Please note that in this email's log, what you see is with a SDCard inserted into the reader, whereas the last email's errors were without any SDCard. If you think this could be a bug, maybe this should be created as a bugzilla ? rrs@learner:~$ dmesg | grep _hcd [ 2.156424] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver [ 2.179325] xhci_hcd 0000:00:14.0: xHCI Host Controller [ 2.179334] xhci_hcd 0000:00:14.0: new USB bus registered, assigned bus number 1 [ 2.180733] xhci_hcd 0000:00:14.0: hcc params 0x200077c1 hci version 0x100 quirks 0x0004b810 [ 2.180747] xhci_hcd 0000:00:14.0: cache line size of 64 is not supported [ 2.186450] xhci_hcd 0000:00:14.0: xHCI Host Controller [ 2.186456] xhci_hcd 0000:00:14.0: new USB bus registered, assigned bus number 2 [ 2.201115] usb usb3: Manufacturer: Linux 4.7.0bfqv8r2+ ehci_hcd [ 2.544358] usb 1-4: new high-speed USB device number 2 using xhci_hcd [ 2.877726] usb 1-5: new full-speed USB device number 3 using xhci_hcd [ 3.211084] usb 1-6: new high-speed USB device number 4 using xhci_hcd [ 3.587708] usb 1-7: new full-speed USB device number 5 using xhci_hcd [ 3.921093] usb 1-8: new full-speed USB device number 6 using xhci_hcd [ 128.718593] xhci_hcd 0000:00:14.0: dev 4 ep1out scatterlist error -104/-110 [ 265.894197] xhci_hcd 0000:00:14.0: dev 4 ep1out scatterlist error -104/-110 [ 285.841249] xhci_hcd 0000:00:14.0: dev 4 ep1out scatterlist error -104/-110 [ 305.655593] xhci_hcd 0000:00:14.0: dev 4 ep1out scatterlist error -104/-110 [ 325.497236] xhci_hcd 0000:00:14.0: dev 4 ep1out scatterlist error -104/-110 [ 345.445123] xhci_hcd 0000:00:14.0: dev 4 ep1out scatterlist error -104/-110 [ 365.286055] xhci_hcd 0000:00:14.0: dev 4 ep1out scatterlist error -104/-110 [ 385.206927] xhci_hcd 0000:00:14.0: dev 4 ep1out scatterlist error -104/-110 [ 404.994319] xhci_hcd 0000:00:14.0: dev 4 ep1out scatterlist error -104/-110 [ 424.915114] xhci_hcd 0000:00:14.0: dev 4 ep1out scatterlist error -104/-110 [ 444.835861] xhci_hcd 0000:00:14.0: dev 4 ep1out scatterlist error -104/-110 [ 464.623321] xhci_hcd 0000:00:14.0: dev 4 ep1out scatterlist error -104/-110 [ 484.544052] xhci_hcd 0000:00:14.0: dev 4 ep1out scatterlist error -104/-110 [ 504.464803] xhci_hcd 0000:00:14.0: dev 4 ep1out scatterlist error -104/-110 [ 524.358867] xhci_hcd 0000:00:14.0: dev 4 ep1out scatterlist error -104/-110 [ 544.172947] xhci_hcd 0000:00:14.0: dev 4 ep1out scatterlist error -104/-110 [ 563.986924] xhci_hcd 0000:00:14.0: dev 4 ep1out scatterlist error -104/-110 [ 583.907716] xhci_hcd 0000:00:14.0: dev 4 ep1out scatterlist error -104/-110 [ 603.695055] xhci_hcd 0000:00:14.0: dev 4 ep1out scatterlist error -104/-110 [ 623.615832] xhci_hcd 0000:00:14.0: dev 4 ep1out scatterlist error -104/-110 [ 643.536562] xhci_hcd 0000:00:14.0: dev 4 ep1out scatterlist error -104/-110 [ 663.457332] xhci_hcd 0000:00:14.0: dev 4 ep1out scatterlist error -104/-110 [ 683.404561] xhci_hcd 0000:00:14.0: dev 4 ep1out scatterlist error -104/-110 2016-08-12 / 17:05:55 ♒♒♒ ☺ and the non-grepped output, that affects the block device and its file system. [ 365.286055] xhci_hcd 0000:00:14.0: dev 4 ep1out scatterlist error -104/-110 [ 368.886974] mmcblk0: error -110 sending status command, retrying [ 369.486748] mmcblk0: error -110 sending status command, retrying [ 370.086769] mmcblk0: error -110 sending status command, aborting [ 372.489237] JBD2: recovery failed [ 372.489239] mmc0: card 0001 removed [ 372.489246] EXT4-fs (mmcblk0p2): error loading journal [ 373.919190] mmc0: new ultra high speed SDR50 SDHC card at address 0001 [ 373.919447] mmcblk0: mmc0:0001 00000 7.44 GiB [ 373.921308] mmcblk0: p1 p2 [ 374.100604] FAT-fs (mmcblk0p1): utf8 is not a recommended IO charset for FAT filesystems, filesystem will be case sensitive! [ 374.123828] FAT-fs (mmcblk0p1): Volume was not properly unmounted. Some data may be corrupt. Please run fsck. [ 385.206927] xhci_hcd 0000:00:14.0: dev 4 ep1out scatterlist error -104/-110 [ 388.807534] mmcblk0: error -110 sending status command, retrying [ 389.407732] mmcblk0: error -110 sending status command, retrying [ 390.007416] mmcblk0: error -110 sending status command, aborting [ 392.410267] mmc0: card 0001 removed [ 392.410271] JBD2: recovery failed [ 392.410275] EXT4-fs (mmcblk0p2): error loading journal [ 393.718948] mmc0: new ultra high speed SDR50 SDHC card at address 0001 [ 393.719200] mmcblk0: mmc0:0001 00000 7.44 GiB [ 393.721232] mmcblk0: p1 p2 [ 393.895994] FAT-fs (mmcblk0p1): utf8 is not a recommended IO charset for FAT filesystems, filesystem will be case sensitive! [ 393.918883] FAT-fs (mmcblk0p1): Volume was not properly unmounted. Some data may be corrupt. Please run fsck. [ 404.994319] xhci_hcd 0000:00:14.0: dev 4 ep1out scatterlist error -104/-110 [ 408.594951] mmcblk0: error -110 sending status command, retrying [ 409.195091] mmcblk0: error -110 sending status command, retrying [ 409.794964] mmcblk0: error -110 sending status command, aborting [ 412.199751] mmc0: card 0001 removed [ 412.199929] JBD2: recovery failed [ 412.199936] EXT4-fs (mmcblk0p2): error loading journal [ 413.627050] mmc0: new ultra high speed SDR50 SDHC card at address 0001 [ 413.627337] mmcblk0: mmc0:0001 00000 7.44 GiB [ 413.629286] mmcblk0: p1 p2 [ 413.803223] FAT-fs (mmcblk0p1): utf8 is not a recommended IO charset for FAT filesystems, filesystem will be case sensitive! [ 413.829698] FAT-fs (mmcblk0p1): Volume was not properly unmounted. Some data may be corrupt. Please run fsck. - -- Ritesh Raj Sarraf RESEARCHUT - http://www.researchut.com "Necessity is the mother of invention." -----BEGIN PGP SIGNATURE----- iQIcBAEBCgAGBQJXrbYdAAoJEKY6WKPy4XVpPnoP/3KY2x7Fh2LaXykEXAtLWHqp 34jUe0+MMN3Pc1OTffHAgm14p3n2T2U8roDczWd6Kkuyyuh60H9CDvXYrlZkucnD /ukBtE7bfD5hSScWMR3PybRpSKgRHvHvFBroZjC8n9U6GvrwoGlaREY8dTDbrofe S8cbVS22PHeXYZctG5UzoqVQumGXyDIlAZ0/HW0d9HmXtY7xJl4kfBvUDdWnARPS OxmybyyBsS0QZfGJvct0VAC0gVIDe67nWVoAClNgKU1IV3nq6SeRwZKqUX/v9KdA Iz/AkInQS61+X2+4bbcQuRcLAcOYOiJhNiI9uu93i6K45+8UkfbkXz/VzV7Oc/yL XFTbqVzAdpcsntSawhXdW2SSPG5//TsAr4OSMLf8/btwS+WYGfNHZalZOF0FVvFr I/AYAtjyWfwHZEMJeb0CaEQ610Idyk4eS4KncScvaL4Pl0+hV5qTU/4cTaptrUjY m/eloN/q+vHo1Pn1w1OnrBWwUrm90gNMHTDhn3wyfKFiCHgBkPeyOKrcbq7y4WfA r2bKDcUgbZNrUSMO0wBg8yHgOATSxjQqUauFIoupz7nJ9kCUdp05JvOOl/079BH+ sYEGxpifWn/BYlSZJrCKI3+CV9FFrGtShKmV3LVisx392vjd//iaG9Uh3jZfliPH iLMMubCje9TxF3WZtVe/ =wf+F -----END PGP SIGNATURE----- -- 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
