# Re: always Segmentation Fault

From: Christoph H. (ch@basis.dhs.org)
Date: Sat Feb 24 2001 - 09:32:49 PST

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  Hi!

  > Try to set "option buffersize" to something reasonable in mustek.conf
  > (32 in your case). However, there shouldn't be a segfault anyway.

  I set the buffer now to 32k in mustek.conf, but nothing changed :(
  You can see that below...

  > As far as I see something goes wrong when "talking" to /dev/sg2,
  > probably in sanei_scsi.c. Could you send a debug log with the
  > nvironment variables SANE_DEBUG_MUSTEK=255 and
  > SANE_DEBUG_SANEI_SCSI=255 set?

  [sanei_debug] Setting debug level of mustek to 255.
  [mustek] SANE Mustek backend version 1.0 build 102 (SANE 1.0.4)
  [mustek] sane_init: authorize != null
  [mustek] sane_init: using sanei_scsi_open_extended
  [mustek] sane_init: reading config file `mustek.conf'
  [mustek] sane_init: config file line 1: ignoring comment line
  [mustek] sane_init: config file line 2: ignoring empty line
  [mustek] sane_init: config file line 3: ignoring comment line
  [mustek] sane_init: config file line 4: strip-height set to 1 inches
  [mustek] sane_init: freed
  [mustek] sane_init: config file line 5: ignoring comment line
  [mustek] sane_init: config file line 6: ignoring comment line
  [mustek] sane_init: config file line 7: ignoring comment line
  [mustek] sane_init: config file line 8: ignoring empty line
  [mustek] sane_init: config file line 9: ignoring comment line
  [mustek] sane_init: config file line 10: ignoring comment line
  [mustek] sane_init: config file line 11: ignoring comment line
  [mustek] sane_init: config file line 12: ignoring comment line
  [mustek] sane_init: config file line 13: ignoring comment line
  [mustek] sane_init: config file line 14: ignoring comment line
  [mustek] sane_init: config file line 15: ignoring empty line
  [mustek] sane_init: config file line 16: trying to attach `scsi SCANNER'
  [sanei_debug] Setting debug level of sanei_scsi to 255.
  [sanei_scsi] searched device is /dev/sg2
  [mustek] attach: trying device /dev/sg2
  [mustek] dev_open /dev/sg2
  [sanei_debug] Setting debug level of sanei_scsi to 255.
  [sanei_scsi] sanei_scsi_open: sanei_scsi_max_request_size=32768 bytes
  [sanei_scsi] sanei_scsi_open: using old SG driver logic
  [mustek] dev_open: /dev/sg2 is a SCSI device
  [mustek] dev_open: wanted 8 kbytes, got 8 kbytes buffer
  [mustek] attach: sending INQUIRY
  [sanei_scsi] scsi_req_enter: entered 0x80506d8
  [sanei_scsi] sanei_scsi.issue: 0x80506d8
  [sanei_scsi] scsi_req_enter: queue_used: 1, queue_max: 1
  [sanei_scsi] sanei_scsi_req_wait: waiting for 0x80506d8
  [sanei_scsi] sanei_scsi.issue: 0x80506d8
  [sanei_scsi] sanei_scsi_req_wait: read 0 bytes
  Segmentation fault

  Thanks!
  Regards, Christoph.

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  - Next message: Oliver Neukum: "Re: usb-scsi driver problem with SET_WINDOW?"
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