[LU-4220] posix test_1: creat.24 failed: creat("<256 char path>", 0777) did not give correct results

• Type: Bug
• Resolution: Duplicate
• Priority: Critical
• Affects Version/s: Lustre 2.4.1, Lustre 2.5.0
• Labels: zfs
• Environment: BASELINE_FS=zfs
• Severity: 3
• Assignee: Jian Yu
• Reporter: Jian Yu

Description

While running posix test on Lustre with BASELINE_FS=zfs, creat.24 failed as follows:

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Test Name: creat.24 Failed

	Test Description:
For the XNFS specification:
    Not in use.
For the XSH specification:
    If _POSIX_NO_TRUNC is defined:
        If _POSIX_NAME_MAX <= {NAME_MAX} <= PCTS_NAME_MAX, then
        ENAMETOOLONG in errno and a return value of -1 on a call to
        creat(path, mode) when the length of a pathname component of
        path is longer than the maximum number of bytes in a filename
        {NAME_MAX};
                                  otherwise
        a call to creat(path, mode) when the length of a component of
        path equals PCTS_NAME_MAX does not give an ENAMETOOLONG error.
Posix Ref: Component CREAT Assertion 5.3.2.4-49(C)

	Test Strategy:
IF pathconf() returns a value of NAME_MAX <= PCTS_NAME_MAX, and not -1
  CREATE a file with a filename of length NAME_MAX using creat()
  VERIFY that creat() returned successfully
  CREATE a file with a filename of length NAME_MAX+1 using creat()
  VERIFY that creat() returned -1 and errno was set to ENAMETOOLONG
OTHERWISE
  CREATE a file with a filename of length PCTS_NAME_MAX using creat()
  VERIFY that creat() returned successfully

	Test Information:
creat("<256 char path>", 0777) did not give correct results
RETURN VALUES: expected: 0, observed: -1
ERRNO VALUES: expected: 0 (NO ERROR), observed: 36 (ENAMETOOLONG)

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Maloo report: https://maloo.whamcloud.com/test_sets/e74b645e-4634-11e3-810a-52540035b04c

The following tests hit the same failure:

Test Name                   Baseline   Lustre Report
mkdir.13                   Succeeded          Failed
mkfifo.11                  Succeeded          Failed
open.38                    Succeeded          Failed

Issue Links

• duplicates: LU-4219 posix test_1: fpathconf.8 and pathconf.10 failed: did not return the value of NAME_MAX