Date: Mon, 29 Apr 2013 05:31:18 GMT From: Alex Strange <astrange@gmail.com> To: freebsd-gnats-submit@FreeBSD.org Subject: kern/178231: 8.3 nfsv4 client reports "nfsv4 client/server protocol prob err=10026" Message-ID: <201304290531.r3T5VIbu023396@red.freebsd.org> Resent-Message-ID: <201304290540.r3T5e1Bh052104@freefall.freebsd.org>
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>Number: 178231 >Category: kern >Synopsis: 8.3 nfsv4 client reports "nfsv4 client/server protocol prob err=10026" >Confidential: no >Severity: non-critical >Priority: low >Responsible: freebsd-bugs >State: open >Quarter: >Keywords: >Date-Required: >Class: sw-bug >Submitter-Id: current-users >Arrival-Date: Mon Apr 29 05:40:01 UTC 2013 >Closed-Date: >Last-Modified: >Originator: Alex Strange >Release: 8.3-release >Organization: >Environment: FreeBSD sys 8.3-RELEASE FreeBSD 8.3-RELEASE #0: Tue Oct 30 02:00:23 EDT 2012 mrvacbob@sys:/usr/obj/usr/src/sys/CUSTOM amd64 >Description: I have a busy web server which mounts two other systems over NFSv4 and writes files to them. All three systems are running FreeBSD 8.3 amd64. dmesg frequently fills up with this: nfsv4 client/server protocol prob err=10026 nfsv4 client/server protocol prob err=10026 … which causes file writes to fail on specific worker processes. Killing the right process while the logging is going fixes the issue for a while, but this would cause requests to error so we'd prefer to avoid it. nfs activity: % nfsstat -w 1 -e GtAttr Lookup Rdlink Read Write Rename Access Rddir … Client: 1106 880 0 0 424 60 880 0 Server: 0 0 0 0 0 0 0 0 nfs related sysctls: vfs.newnfs.downdelayinitial: 12 vfs.newnfs.downdelayinterval: 30 vfs.newnfs.keytab_enctype: 1 vfs.newnfs.skip_wcc_data_onerr: 1 vfs.newnfs.nfs3_jukebox_delay: 10 vfs.newnfs.reconnects: 0 vfs.newnfs.bufpackets: 4 vfs.newnfs.callback_addr: vfs.newnfs.nfs4acl_enable: 1 vfs.newnfs.realign_count: 0 vfs.newnfs.realign_test: 0 vfs.newnfs.nfs_directio_allow_mmap: 1 vfs.newnfs.nfs_directio_enable: 0 vfs.newnfs.clean_pages_on_close: 1 vfs.newnfs.commit_on_close: 0 vfs.newnfs.prime_access_cache: 0 vfs.newnfs.access_cache_timeout: 60 vfs.newnfs.diskless_rootpath: vfs.newnfs.diskless_valid: 0 vfs.newnfs.nfs_ip_paranoia: 1 vfs.newnfs.defect: 0 vfs.newnfs.iodmax: 4 vfs.newnfs.iodmin: 0 vfs.newnfs.iodmaxidle: 120 vfs.newnfs.disable_checkutf8: 0 vfs.newnfs.server_max_nfsvers: 4 vfs.newnfs.server_min_nfsvers: 2 vfs.newnfs.nfs_privport: 0 vfs.newnfs.enable_locallocks: 0 vfs.newnfs.issue_delegations: 0 vfs.newnfs.commit_miss: 0 vfs.newnfs.commit_blks: 0 vfs.newnfs.mirrormnt: 1 vfs.newnfs.minthreads: 1 vfs.newnfs.maxthreads: 4 vfs.newnfs.threads: 0 vfs.newnfs.request_space_used: 0 vfs.newnfs.request_space_used_highest: 0 vfs.newnfs.request_space_high: 47185920 vfs.newnfs.request_space_low: 31457280 vfs.newnfs.request_space_throttled: 0 vfs.newnfs.request_space_throttle_count: 0 Applicable fstab: boards:/boards /www/boards nfs rw,noatime,nfsv4,async,nolockd,late,intr,bg,timeout=5 0 0 images:/images /www/images nfs rw,noatime,nfsv4,async,nolockd,late,intr,bg,timeout=5 0 0 images:/thumbs /www/thumbs nfs rw,noatime,nfsv4,async,nolockd,late,intr,bg,timeout=5 0 0 >How-To-Repeat: Wait. >Fix: >Release-Note: >Audit-Trail: >Unformatted:
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