Bug 435428
| Summary: | test6 and test7 basic connectathon tests fail between RHEL5 and AIX | ||
|---|---|---|---|
| Product: | Red Hat Enterprise Linux 5 | Reporter: | Aime Le Rouzic <aime.le-rouzic> |
| Component: | kernel | Assignee: | Red Hat Kernel Manager <kernel-mgr> |
| Status: | CLOSED WONTFIX | QA Contact: | Red Hat Kernel QE team <kernel-qe> |
| Severity: | medium | Docs Contact: | |
| Priority: | low | ||
| Version: | 5.1 | CC: | jlayton, rwheeler, steved |
| Target Milestone: | rc | ||
| Target Release: | --- | ||
| Hardware: | x86_64 | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | Bug Fix | |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2010-03-16 19:14:22 UTC | Type: | --- |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
| Embargoed: | |||
Please reopen if this is still an issue. |
Description of problem: Hi, Running the basic commands (-b) of the Connectathon Suite between AIX 6.1.0 SP2 (as NFSV4 Client) and Linux 2.6.24-rc2-CITI_NFS4_ALL-1(as NFSV4 server), I get issues in test6 and test7 which should be due to the change attribute of 1s on the server side: - for test6 we get: ./runtests -b -t /mnt/nosec/test6 Starting BASIC tests: test directory /mnt/nosec/test6 (arg: -t) ./test6: readdir ./test6: (/mnt/nosec/test6) unlinked 'file.0' dir entry read pass 1 ./test6: (/mnt/nosec/test6) Test failed with 1 errors basic tests failed - for test7 we get: ./runtests -b -t /mnt/nosec/test7 Starting BASIC tests: test directory /mnt/nosec/test7 (arg: -t) ./test7: link and rename ./test7: (/mnt/nosec/test7) file.0 has 2 links after unlink (expect 1) : No such file or directory basic tests failed Version-Release number of selected component (if applicable): RHEL5.1 Gold AIX 6.1.0 SP2 How reproducible: Steps to Reproduce: 1. 2. 3. Actual results: Expected results: Additional info: For test6: If we mount on the AIX side with noac it works. If we add also "sleep(1)" before the unlink it works Otherwise it fails Here is the IBM's analysis: >>I believe that's the time_delta issue about change attribute. >>The problem is this. >>You have >> 1. A is a file. >> 2. B is a link (hard link) to A. >>So A has 2 links. >>WWhen client deleted B or A. the link count should go down to 1. When the deletion happened, >>the link count on A is 2 which is cached on the client side. However, when client delete B >>and then ask for the attrributes of A, A hasn't change because deletion and asking for attributes >> are all within a second(the time_delta issue). Since A hasn't changed, So client thinks its >>cache is good. Therefore a bad link count get reported. >>By putting a sleep of a second in between rm and ls, we are forcing the client to sleep for >>one second before asking for the attributes. Since the time_delta for linux is 1 second. >>So when asking for attributes, server will notice the different and tell the client, >> its cache has expired. In this case, client will then purge the cache and re-populate the >>cache and return the good link count. Best Regards