| Summary: | System hangs occasionally when using NFSv4 | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Product: | Red Hat Enterprise Linux 5 | Reporter: | Ondrej Valousek <ondrejv> | ||||||||
| Component: | kernel | Assignee: | Red Hat Kernel Manager <kernel-mgr> | ||||||||
| Status: | CLOSED DUPLICATE | QA Contact: | Red Hat Kernel QE team <kernel-qe> | ||||||||
| Severity: | high | Docs Contact: | |||||||||
| Priority: | medium | ||||||||||
| Version: | 5.6 | CC: | bfields, dhowells, jlayton, rwheeler, sprabhu, steved, tsobral | ||||||||
| 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: | 2011-08-16 10:14:48 UTC | Type: | --- | ||||||||
| Regression: | --- | Mount Type: | --- | ||||||||
| Documentation: | --- | CRM: | |||||||||
| Verified Versions: | Category: | --- | |||||||||
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |||||||||
| Cloudforms Team: | --- | Target Upstream Version: | |||||||||
| Attachments: |
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Description
Ondrej Valousek
2011-03-23 14:44:58 UTC
I believe I am experiencing the same behavior as http://www.spinics.net/lists/linux-nfs/msg13022.html The NFS client is also diskless in my case but it is using NFSv3 to mount the root FS so it should not cause idmapper to hang. The problem has also been described here: https://bugzilla.redhat.com/show_bug.cgi?id=483365 I wonder why was the fix declined? Created attachment 487391 [details]
diskless machine pisces log (2 occurences)
Created attachment 487392 [details]
diskless machine sagitta log (1 occurence)
Attached logs from the affected machines (3 occurences in total). Note - the process 'adclient' is a daemon for the NSS library - provides username/uid mappings (so it is indirectly being used by the rpc.idmapd). No system vmcore available unfortunately. I am able to replicate the problem on RHEL-6 (kernel Linux data 2.6.32-71.el6.x86_64) too. In fact RHEL-6 in the similar configuration hangs almost immediately. SysRq trace is attached. Could you tell me if we are experiencing a similar issue or is this one completely different? Created attachment 496471 [details]
/var/log/messages from a diskless system running RHEL-6
/var/log/messages file containing the SysRq traces
Hi Ondrej, Redhat's bugzilla is not really meant to be used to go around the normal Red Hat support channel. You should talk with your Red Hat service people and open a ticket so they can help gather information and prioritize the response. If you are not a red hat customer, please report this as well to the upstream nfs developer list. Thanks! Hi Ric, I am a RedHat customer and I have opened service case (#00441148) already few months ago. No satisfactory update yet. This case has been opened so that other people can see the problem. Ondrej Ondrej, bz 609252 deals with the issue you reported on RHEL 5. Sachin Prabhu There's little info to go on here, but this is almost certainly a duplicate of bug 609252. Marking it as such... *** This bug has been marked as a duplicate of bug 609252 *** |