[RTEMS Project] #2362: Configuration/initialization of block device buffer fails silently

[RTEMS trac]

#2362: Configuration/initialization of block device buffer fails silently
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 Reporter:  mw       |      Owner:
     Type:  defect   |     Status:  new
 Priority:  normal   |  Milestone:
Component:  General  |    Version:  4.11
 Severity:  normal   |   Keywords:
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 If CONFIGURE_BDBUF_MAX_READ_AHEAD_BLOCKS is set too large, the
 initialization of the block device buffer can fail without any notice,
 causing problems downstream that are seemingly unrelated (such as trying
 to read from the device) and with misleading error codes.

 Tested on pc386 BSP

 Ran testsuites/samples/fileio/fileio.exe fine, initializing partition
 /dev/hda with result = 0

 Modified testsuites/samples/fileio/system.h, setting
 CONFIGURE_BDBUF_MAX_READ_AHEAD_BLOCKS to 32 (rather than 2).

 Re-ran, and initializing partition /dev/hda fails with result = 3 (Invalid
 Name).

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Ticket URL: <http://devel.rtems.org/ticket/2362>
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