[Xapian-tickets] [Xapian] #823: Unit test ioblock1 failure

[Xapian]

#823: Unit test ioblock1 failure
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 Reporter:  someplaceguy  |             Owner:  Olly Betts
     Type:  defect        |            Status:  assigned
 Priority:  normal        |         Milestone:  1.4.25
Component:  Test Suite    |           Version:  1.4.24
 Severity:  normal        |        Resolution:
 Keywords:                |        Blocked By:
 Blocking:                |  Operating System:  Linux
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Comment (by Olly Betts):

 Does it work if you increase the size created at this step from 12K to
 (say) 132K?

 > That said, note that users can configure ZFS filesystems to have a block
 size of (up to) 16 MiB currently. Furthermore, it's even possible to
 increase this limit by simply changing a kernel module parameter.

 I don't think we want to try to create a large file just to more reliably
 test if we can create an even larger file without risking filling the
 disk.  It's not a problem for this test to skip in some situations where
 it could actually fully run, but ideally it should fully run in as many
 cases as possible without potentially creating large files.  Also running
 in default configurations is especially helpful as that'll help find
 problems which are specific to a particular platform or FS.

 We should probably adjust the message to something like "couldn't detect
 support for sparse files" though.
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Ticket URL: <https://trac.xapian.org/ticket/823#comment:8>
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