[coLinux-devel] [ colinux-Bugs-2911988 ] Can't read empty file on cofs

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Bugs item #2911988, was opened at 2009-12-10 14:09
Message generated for change (Settings changed) made by henryn
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Category: Daemons (Windows)
Group: v0.8.x (devel)
Status: Open
>Resolution: Accepted
Priority: 5
Private: No
Submitted By: Nobody/Anonymous (nobody)
Assigned to: Nobody/Anonymous (nobody)
Summary: Can't read empty file on cofs

Initial Comment:
In the cofs directory, read any file size is zero-byte, we will get block io error.
the function ZwReadFile will return STATUS_END_OF_FILE here.

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>Comment By: Henry N. (henryn)
Date: 2009-12-15 01:07

Message:
Ok, I see it under Windows 2000 with kernel 2.6.25.20 and 2.6.26.8

Test commands:
  test -s empty && rm empty
  touch empty
  cat empty

Linux output:
   cat: empty: Input/output error

Debug output:
  <log  module="colinux-driver" file="src/colinux/os/winnt/kernel/block.c"
timestamp="00000000.4015119006" local_index="1" facility="0"
function="transfer_file_block" line="80" level="3" driver_index="1">
<string>block io failed: 0xf25cc000 1000 (reason: c0000011)</string>
</log>

coLinux 0.7.5 with Linux kernel 2.6.22.18 has not such problem.


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Comment By: Nobody/Anonymous (nobody)
Date: 2009-12-13 15:26

Message:
Excuse me, I forgot write version of OS.
I try SVN version coLinux in Win2k SP4

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Comment By: Henry N. (henryn)
Date: 2009-12-10 22:35

Message:
What OS?

Under XP-SP2 have no problem.


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