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Date: Sun, 20 Apr 2008 21:24:54 +0200 From: Miklos Szeredi <miklos@...redi.hu> To: bfields@...ldses.org CC: miklos@...redi.hu, trond.myklebust@....uio.no, eshel@...aden.ibm.com, neilb@...e.de, akpm@...ux-foundation.org, linux-nfs@...r.kernel.org, linux-kernel@...r.kernel.org, linux-fsdevel@...r.kernel.org Subject: Re: nfs: lock stuck after interrupt > > lockd: vfs_lock_file returned 1 > > Why is vfs_lock_file returning 1? It should be 0 or -ERRNO. Er sorry, that was the "return special value for async lock requests" patch, which I was testing at the time. It doesn't make a difference, but here's the log for nfs-2.6.git. It also contains a '/etc/init.d/nfs-kernel-server stop' at the end, which eventually removes the stuck lock. Miklos [ 180.770000] lockd: request from 192.168.1.3, port=928 [ 180.770000] lockd: LOCK called [ 180.770000] lockd: nlm_lookup_host(192.168.1.2->192.168.1.3, p=6, v=4, my role=server, name=uml2) [ 180.770000] lockd: get host uml2 [ 180.770000] lockd: nsm_monitor(uml2) [ 180.770000] lockd: nlm_lookup_file (02000001 00006200 00000002 0001783d 93dc4121 00017801 d06c5915 00000000) [ 180.770000] lockd: creating file for (02000001 00006200 00000002 0001783d 93dc4121 00017801 d06c5915 00000000) [ 180.770000] lockd: found file 0ad722c0 (count 0) [ 180.770000] lockd: nlmsvc_lock(ubda/96317, ty=1, pi=1, 0-99, bl=1) [ 180.770000] lockd: nlm_lookup_host(192.168.1.2->192.168.1.3, p=6, v=4, my role=server, name=uml2) [ 180.770000] lockd: get host uml2 [ 180.770000] lockd: nlmsvc_lookup_block f=0ad722c0 pd=1 0-99 ty=1 [ 180.770000] lockd: get host uml2 [ 180.770000] lockd: created block 0ae26200... [ 180.770000] lockd: vfs_lock_file returned -11 [ 180.770000] lockd: nlmsvc_insert_block(0ae26200, -1) [ 180.770000] lockd: release host uml2 [ 180.770000] lockd: nlmsvc_lock returned 50331648 [ 180.770000] lockd: LOCK status 3 [ 180.770000] lockd: release host uml2 [ 180.770000] lockd: nlm_release_file(0ad722c0, ct = 2) [ 181.490000] lockd: request from 192.168.1.3, port=928 [ 181.490000] lockd: CANCEL called [ 181.490000] lockd: nlm_lookup_host(192.168.1.2->192.168.1.3, p=6, v=4, my role=server, name=uml2) [ 181.490000] lockd: get host uml2 [ 181.490000] lockd: nlm_lookup_file (02000001 00006200 00000002 0001783d 93dc4121 00017801 d06c5915 00000000) [ 181.490000] lockd: found file 0ad722c0 (count 1) [ 181.490000] lockd: nlmsvc_cancel(ubda/96317, pi=1, 0-99) [ 181.490000] lockd: nlmsvc_lookup_block f=0ad722c0 pd=1 0-99 ty=1 [ 181.490000] lockd: check f=0ad722c0 pd=1 0-99 ty=1 cookie=36120000 [ 181.490000] lockd: unlinking block 0ae26200... [ 181.490000] lockd: freeing block 0ae26200... [ 181.490000] lockd: release host uml2 [ 181.490000] lockd: nlm_release_file(0ad722c0, ct = 2) [ 181.490000] lockd: CANCEL status 0 [ 181.490000] lockd: release host uml2 [ 181.490000] lockd: nlm_release_file(0ad722c0, ct = 1) [ 181.490000] lockd: closing file ubda/96317 [ 181.490000] lockd: request from 192.168.1.3, port=928 [ 181.490000] lockd: LOCK called [ 181.490000] lockd: nlm_lookup_host(192.168.1.2->192.168.1.3, p=6, v=4, my role=server, name=uml2) [ 181.490000] lockd: get host uml2 [ 181.490000] lockd: nsm_monitor(uml2) [ 181.490000] lockd: nlm_lookup_file (02000001 00006200 00000002 0001783d 93dc4121 00017801 d06c5915 00000000) [ 181.490000] lockd: creating file for (02000001 00006200 00000002 0001783d 93dc4121 00017801 d06c5915 00000000) [ 181.490000] lockd: found file 0ad722c0 (count 0) [ 181.490000] lockd: nlmsvc_lock(ubda/96317, ty=1, pi=2, 0-99, bl=1) [ 181.490000] lockd: nlm_lookup_host(192.168.1.2->192.168.1.3, p=6, v=4, my role=server, name=uml2) [ 181.490000] lockd: get host uml2 [ 181.490000] lockd: nlmsvc_lookup_block f=0ad722c0 pd=2 0-99 ty=1 [ 181.490000] lockd: get host uml2 [ 181.490000] lockd: created block 0ae26200... [ 181.490000] lockd: vfs_lock_file returned -11 [ 181.490000] lockd: nlmsvc_insert_block(0ae26200, -1) [ 181.490000] lockd: release host uml2 [ 181.490000] lockd: nlmsvc_lock returned 50331648 [ 181.490000] lockd: LOCK status 3 [ 181.490000] lockd: release host uml2 [ 181.490000] lockd: nlm_release_file(0ad722c0, ct = 2) [ 183.390000] lockd: VFS unblock notification for block 0ad6c0c4 [ 183.390000] lockd: nlmsvc_insert_block(0ae26200, 0) [ 183.390000] nlmsvc_retry_blocked(0ae26200, when=-11661) [ 183.390000] lockd: grant blocked lock 0ae26200 [ 183.390000] lockd: unlinking block 0ae26200... [ 183.390000] lockd: GRANTing blocked lock. [ 183.390000] lockd: nlmsvc_insert_block(0ae26200, -1) [ 183.390000] lockd: call procedure 10 on uml2 (async) [ 183.390000] lockd: nlm_bind_host(192.168.1.2->192.168.1.3) [ 183.390000] lockd: GRANT_MSG RPC callback [ 183.390000] lockd: nlmsvc_insert_block(0ae26200, 6000) [ 183.390000] lockd: request from 192.168.1.3, port=758 [ 183.390000] lockd: GRANTED_RES called [ 183.390000] grant_reply: looking for cookie 1237, s=0 [ 183.390000] nlmsvc_find_block(37120000): block=0ae26200 [ 183.390000] lockd: unlinking block 0ae26200... [ 183.390000] lockd: freeing block 0ae26200... [ 183.390000] lockd: release host uml2 [ 183.390000] lockd: nlm_release_file(0ad722c0, ct = 1) [ 185.100000] lockd: request from 192.168.1.3, port=928 [ 185.100000] lockd: UNLOCK called [ 185.100000] lockd: nlm_lookup_host(192.168.1.2->192.168.1.3, p=6, v=4, my role=server, name=uml2) [ 185.100000] lockd: get host uml2 [ 185.100000] lockd: nlm_lookup_file (02000001 00006200 00000002 0001783d 93dc4121 00017801 d06c5915 00000000) [ 185.100000] lockd: found file 0ad722c0 (count 0) [ 185.100000] lockd: nlmsvc_unlock(ubda/96317, pi=3, 0-9223372036854775807) [ 185.100000] lockd: nlmsvc_cancel(ubda/96317, pi=3, 0-9223372036854775807) [ 185.100000] lockd: nlmsvc_lookup_block f=0ad722c0 pd=3 0-9223372036854775807 ty=2 [ 185.100000] lockd: UNLOCK status 0 [ 185.100000] lockd: release host uml2 [ 185.100000] lockd: nlm_release_file(0ad722c0, ct = 1) [ 192.280000] lockd: shutting down host module [ 192.280000] lockd: nuking all hosts... [ 192.280000] lockd: host garbage collection [ 192.280000] lockd: nlmsvc_mark_resources [ 192.280000] lockd: delete host uml2 [ 192.280000] nfsd: last server has exited [ 192.280000] nfsd: unexporting all filesystems -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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