| To: | "J. Bruce Fields" <bfields@xxxxxxxxxxxx> |
|---|---|
| Subject: | Re: panic on 4.20 server exporting xfs filesystem |
| From: | Christoph Hellwig <hch@xxxxxx> |
| Date: | Sun, 8 Mar 2015 16:30:56 +0100 |
| Cc: | Christoph Hellwig <hch@xxxxxx>, Dave Chinner <david@xxxxxxxxxxxxx>, Eric Sandeen <sandeen@xxxxxxxxxxx>, linux-nfs@xxxxxxxxxxxxxxx, xfs@xxxxxxxxxxx |
| Delivered-to: | xfs@xxxxxxxxxxx |
| In-reply-to: | <20150305204749.GA17934@xxxxxxxxxxxx> |
| References: | <20150304220900.GX18360@dastard> <20150304222709.GI1627@xxxxxxxxxxxx> <20150304224557.GY4251@dastard> <54F78BE5.1020608@xxxxxxxxxxx> <20150304225623.GZ4251@dastard> <20150305040849.GJ1627@xxxxxxxxxxxx> <20150305131731.GA16235@xxxxxx> <20150305150138.GA15674@xxxxxxxxxxxx> <20150305170217.GC15674@xxxxxxxxxxxx> <20150305204749.GA17934@xxxxxxxxxxxx> |
| User-agent: | Mutt/1.5.17 (2007-11-01) |
On Thu, Mar 05, 2015 at 03:47:49PM -0500, J. Bruce Fields wrote: > nfsd: client 192.168.122.32 failed to respond to layout recall. Fencing.. > nfsd: fence failed for client 192.168.122.32: -2! > nfsd: client 192.168.122.32 failed to respond to layout recall. Fencing.. > nfsd: fence failed for client 192.168.122.32: -2! There is no userspace elper to do the fencing, so unfortunately this is expecvted. > receive_cb_reply: Got unrecognized reply: calldir 0x1 xpt_bc_xprt > ffff88005639a000 xid c21abd62 Now this looks like some issue with the low-level callback path. I've never seen tis before, but from looking at receive_cb_reply this happens if xprt_lookup_rqst can't find a rpc_rqst structured for the xid. Looks like we might be corrupting the request list / xid allocation somewhere? I can prepare a patch for you to aid with xid tracing if you want. |
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