Bug 520018
| Summary: | statfs on NFS partition always returns 0 | ||||||||||
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| Product: | Red Hat Enterprise Linux 4 | Reporter: | Issue Tracker <tao> | ||||||||
| Component: | kernel | Assignee: | Jeff Layton <jlayton> | ||||||||
| Status: | CLOSED ERRATA | QA Contact: | Petr Beňas <pbenas> | ||||||||
| Severity: | high | Docs Contact: | |||||||||
| Priority: | high | ||||||||||
| Version: | 4.8 | CC: | jlayton, pbenas, pstehlik, rwheeler, staubach, steved, tao, tumeya | ||||||||
| Target Milestone: | rc | ||||||||||
| Target Release: | --- | ||||||||||
| Hardware: | All | ||||||||||
| OS: | Linux | ||||||||||
| Whiteboard: | |||||||||||
| Fixed In Version: | Doc Type: | Bug Fix | |||||||||
| Doc Text: | Story Points: | --- | |||||||||
| Clone Of: | Environment: | ||||||||||
| Last Closed: | 2011-02-16 15:51:35 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: | |||||||||||
| Bug Depends On: | |||||||||||
| Bug Blocks: | 589293 | ||||||||||
| Attachments: |
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Description
Issue Tracker
2009-08-28 02:20:10 UTC
This report is for EL4. For EL5 it's reported in BZ519112. Description of problem: statfs on NFS partition always returns 0 regardless of success/fail. Steps to Reproduce: 1. Start NFS service: # echo "/test *(rw,no_root_squash)" >> /etc/exports # service nfs start 2. Setup client: # mount -t nfs -o soft,timeo=5 server:/test /mnt/nfs 3. Stop NFS service: # service nfs stop 4. From the client, run the attached test program: Actual results: The program returns with 0, which actually should return negative number according to statfs(2) but returns 0. Expected results: Should return negative number. According to the call trace nfs_statfs is not returning the value properly. sys_statfs() => return 0 vfs_statfs() => return 0 nfs_statfs() => return 0 nfs3_proc_statfs() => return -5 The patch is already upstream: 1a0ba9ae485c5fd17d0bff2f14d9dd75b8985593 Created attachment 358986 [details]
Proposed patch against inode.c of EL4.
Created attachment 358987 [details]
reproducer code
*** Bug 520092 has been marked as a duplicate of this bug. *** The test kernels on my people.redhat.com page have a patch to fix this (and also to turn the printk in this function into a dprintk). Could you test them and let me know whether they resolve the issue for you? http://people.redhat.com/jlayton/ Created attachment 359795 [details]
proposed patch
This request was evaluated by Red Hat Product Management for inclusion in a Red Hat Enterprise Linux maintenance release. Product Management has requested further review of this request by Red Hat Engineering, for potential inclusion in a Red Hat Enterprise Linux Update release for currently deployed products. This request is not yet committed for inclusion in an Update release. Committed in 89.37.EL . RPMS are available at http://people.redhat.com/vgoyal/rhel4/ Reproduced in 2.6.9-89.36.EL and verified in 2.6.9-89.37.EL. An advisory has been issued which should help the problem described in this bug report. This report is therefore being closed with a resolution of ERRATA. For more information on therefore solution and/or where to find the updated files, please follow the link below. You may reopen this bug report if the solution does not work for you. http://rhn.redhat.com/errata/RHSA-2011-0263.html |