Re: nfs: lock stuck after interrupt
From: Miklos Szeredi
Date: Sun Apr 20 2008 - 15:25:39 EST
> > 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
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