A fix is available
APAR status
Closed as program error.
Error description
When reading from a Tape volume using fread() following a reposition you may encounter a failing return code from fread() accompanied with this errno/errno2: EDC5066I A read system error was detected. (errno2=0xC0380005) Verification Steps: 1) Verify target dataset resides on a tape volume. 2) Verify I/O is multi-bufferred. 3) Determine if a reposition has been performed and a read operation is failing. 4) If a dump is available, you should may also find a synad entry in the systrace.
Local fix
Run with a single buffer to circumvent this problem.
Problem summary
**************************************************************** * USERS AFFECTED: Users of z/OS C/C++ reposition functions * * on a multi-buffered tape dataset. * **************************************************************** * PROBLEM DESCRIPTION: Users of a multi-buffered tape dataset * * that reach EOD, and then reposition * * may get a failing return code, along * * with this errno/errno2: * * EDC5066I A read system error was * * detected. (errno2=0xC0380005) * **************************************************************** * RECOMMENDATION: * **************************************************************** See problem description.
Problem conclusion
The code was changed to fix the problem.
Temporary fix
Comments
APAR Information
APAR number
PM71354
Reported component name
LE C LIBRARY
Reported component ID
568819805
Reported release
760
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt / Xsystem
Submitted date
2012-08-22
Closed date
2013-04-24
Last modified date
2013-06-04
APAR is sysrouted FROM one or more of the following:
APAR is sysrouted TO one or more of the following:
UK93742 UK93743
Modules/Macros
CELHIO31 CELQIO31 CEL4IO31
Fix information
Fixed component name
LE C LIBRARY
Fixed component ID
568819805
Applicable component levels
Fix is available
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Document Information
Modified date:
04 June 2013