java/io/File/GetXSpace.java fails with "53687091200 != 161051996160"

The following test failed in the JDK20 CI:

java/io/File/GetXSpace.java

Here's a snippet from the log file:

#section:main
----------messages:(4/211)----------
command: main -Djava.security.manager=allow GetXSpace
reason: User specified action: run main/othervm -Djava.security.manager=allow GetXSpace
Mode: othervm [/othervm specified]
elapsed time (seconds): 0.41
----------configuration:(0/0)----------
----------System.out:(32/1682)*----------
--- Testing df
C:/cygwin 157277340 106383716 50893624 68% /


SecurityManager = null
C:/cygwin:
  df total= 161051996160 free = 0 usable = 52115070976
  getX total= 161051996160 free = 52115070976 usable = 52115070976

SecurityManager = GetXSpace$Allow
C:/cygwin:
  df total= 161051996160 free = 0 usable = 52115070976
  getX total= 161051996160 free = 52115070976 usable = 52115070976

SecurityManager = GetXSpace$DenyFSA
C:/cygwin:
   getTotalSpace: "java.lang.SecurityException: sorry - getFileSystemAttributes" thrown as expected
    getFreeSpace: "java.lang.SecurityException: sorry - getFileSystemAttributes" thrown as expected
  getUsableSpace: "java.lang.SecurityException: sorry - getFileSystemAttributes" thrown as expected

SecurityManager = GetXSpace$DenyRead
C:/cygwin:
   getTotalSpace: "java.lang.SecurityException: sorry - checkRead()" thrown as expected
    getFreeSpace: "java.lang.SecurityException: sorry - checkRead()" thrown as expected
  getUsableSpace: "java.lang.SecurityException: sorry - checkRead()" thrown as expected
all 26 tests passed
--- Testing c:\\sb\\prod\\1659592958\\testoutput\\test-support\\jtreg_open_test_jdk_tier2_part2\\tmp\\4552725401030746762\\8312758356040035656\\foo14892501083129272171.tmp
C: 52428800 1535176 50893624 3% /cygdrive/c

c:\\sb\\prod\\1659592958\\testoutput\\test-support\\jtreg_open_test_jdk_tier2_part2\\tmp\\4552725401030746762\\8312758356040035656\\foo14892501083129272171.tmp:
  df total= 53687091200 free = 0 usable = 52115070976
  getX total= 161051996160 free = 52115070976 usable = 52115070976
----------System.err:(17/1469)*----------
WARNING: A terminally deprecated method in java.lang.System has been called
WARNING: System::setSecurityManager has been called by GetXSpace (file:/C:/sb/prod/1659592958/testoutput/test-support/jtreg_open_test_jdk_tier2_part2/classes/3/java/io/File/GetXSpace.d/)
WARNING: Please consider reporting this to the maintainers of GetXSpace
WARNING: System::setSecurityManager will be removed in a future release
FAILED: 'c:\\sb\\prod\\1659592958\\testoutput\\test-support\\jtreg_open_test_jdk_tier2_part2\\tmp\\4552725401030746762\\8312758356040035656\\foo14892501083129272171.tmp': 53687091200 != 161051996160
4 tests: 1 failure(s); first: java.lang.RuntimeException: 'c:\\sb\\prod\\1659592958\\testoutput\\test-support\\jtreg_open_test_jdk_tier2_part2\\tmp\\4552725401030746762\\8312758356040035656\\foo14892501083129272171.tmp': 53687091200 != 161051996160
java.lang.RuntimeException: 1 test(s) failed
at GetXSpace.main(GetXSpace.java:452)
at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:104)
at java.base/java.lang.reflect.Method.invoke(Method.java:578)
at com.sun.javatest.regtest.agent.MainWrapper$MainThread.run(MainWrapper.java:127)
at java.base/java.lang.Thread.run(Thread.java:1589)

JavaTest Message: Test threw exception: java.lang.RuntimeException: 1 test(s) failed
JavaTest Message: shutting down test

STATUS:Failed.`main' threw exception: java.lang.RuntimeException: 1 test(s) failed
----------rerun:(40/5672)*----------

Please note that this failure msg:

FAILED: 'c:\\sb\\prod\\1659592958\\testoutput\\test-support\\jtreg_open_test_jdk_tier2_part2\\tmp\\4552725401030746762\\8312758356040035656\\foo14892501083129272171.tmp': 53687091200 != 161051996160

is not very helpful. We have two values that are expected to
match, but we have no idea from this output what the values
represent.

I'm starting this bug off as a P3 since this is a Tier2 failure.