Re: full dmesg - Re: Firewire errors with Freecom Hard Drive Quattro and linux kernel 3.13 rc8: fir
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From: Stefan R. <st...@s5...> - 2014-01-18 20:53:45
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On Jan 15 pho...@ya... wrote: > > I still do have the problems with my new Freecom Hard Drive on its > > firewire port. Anyway, I thought I might try a new kernel to see if the > > problems would go away. However the errors are still coming. [...] Thanks for testing the most recent kernel. Overall it looks like a hardware problem to me, for example due to a poorly designed circuit board in the Freecom Quattro. Some customer reviews of the Freecom Quattro 3.0 at amazon.co.uk report unreliable operation via FireWire (in contrast to USB or eSATA), especially when daisy-chained with more FireWire devices, but also when attached alone. Some questions: You wrote earlier that you used older disks successfully. Did you use them at the very same laptop? Please send the file /sys/bus/firewire/devices/fw?/config_rom which corresponds with the Freecom Quattro. This is a binary file; if you want you can transform it into a human-readable text before posting by means of the script "crpp" from http://me.in-berlin.de/~s5r6/linux1394/utils/. Also, please generate a more verbose kernel log from a session with these I/O errors, by running sudo dd of=/sys/module/firewire_ohci/parameters/debug <<< 2 before you attach the Freecom Quattro, then reproduce the I/O errors. Lastly, if you have the means to compile C programs on this laptop, it would interesting to see the output of the program lsfirewirephy from https://code.google.com/p/jujuutils/. -- Stefan Richter -=====-====- ---= =--=- http://arcgraph.de/sr/ |