Messages in this thread | | | Date | Sun, 21 Mar 1999 23:00:37 +0100 | From | Ruben Schattevoy <> | Subject | kernel freeze after lockd: attempt to release unknown file! |
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I experienced several system freezes in the last days (SuSE 6.0, glibc, SMP kernel-nfs, kernel 2.2.2 and 2.2.3-ac3). Apparently these freezes happen under heavy NFS traffic. More precise, from the last lines found in the message file I conclude it might be a problem which is NFS-lockd related. I appended the last minute of the message file from the last three crashes. The last message is in any case:
kernel: lockd: attempt to release unknown file!
I must say, that this warning appears from time to time without a crash to happen immediately. There is another event in common: there is an automounter call for a directory served from a Sun (named kant). This may but need not to be related, because the crash was in each case right after I started a program which spreads over ten Linux PC's and generates a lot of processes and a lot of NFS traffic. These processes make heavy use of process synchronization via NFS-lockf. The common automounter-directory lies on the machine which crashes.
This happened under a 2.2.2 kernel. Since I read of some lockd related bug fixes in Alan's 2.2.3-ac3 I installed a 2.2.3 and patched it to ac3. Unfortunately the problem remains.
So here are my questions: Is this a kernel related problem? Is it a known problem? Is there any patch available? Can I do something more to trace down the problem?
Right now, I run the same program with the working directory lying on a Sun, i.e. without using NFS-lockd to a Linux server.
Thanks,
Ruben
--- kernel 2.2.2 ---
Mar 19 14:06:19 gen100 routed[153]: packet from unknown router, 0.0.0.0 Mar 19 14:06:22 gen100 routed[153]: packet from unknown router, 192.168.10.2 Mar 19 14:06:33 gen100 automount[439]: attempting to mount entry /gen/asp Mar 19 14:06:33 gen100 automount[20784]: lookup(yp): looking up asp Mar 19 14:06:33 gen100 automount[20784]: lookup(yp): asp -> kant:/asp Mar 19 14:06:33 gen100 automount[20784]: expanded entry: kant:/asp Mar 19 14:06:33 gen100 automount[20784]: parse(sun): core of entry: kant:/asp Mar 19 14:06:33 gen100 automount[20784]: mount(nfs): calling mkdir /gen/asp Mar 19 14:06:33 gen100 automount[20784]: mount(nfs): calling mount -t nfs -s -o rsize=8192,wsize=8192,actimeo=0 kant:/asp /gen/asp Mar 19 14:06:33 gen100 automount[20784]: mount(nfs): mounted kant:/asp on /gen/asp Mar 19 14:06:44 gen100 portmap[21952]: connect from 192.168.234.22 to getport(nlockmgr) Mar 19 14:06:44 gen100 portmap[21953]: connect from 127.0.0.1 to getport(status) Mar 19 14:06:49 gen100 routed[153]: packet from unknown router, 0.0.0.0 Mar 19 14:06:52 gen100 mountd[371]: authenticated mount request from gen101.imb-jena.de:601 Mar 19 14:06:52 gen100 portmap[23021]: connect from 192.168.234.2 to getport(mountd) Mar 19 14:06:52 gen100 portmap[23022]: connect from 192.168.234.3 to getport(mountd) Mar 19 14:06:52 gen100 portmap[23024]: connect from 192.168.234.20 to getport(mountd) Mar 19 14:06:53 gen100 portmap[23067]: connect from 192.168.234.2 to getport(nfs) Mar 19 14:06:53 gen100 routed[153]: packet from unknown router, 192.168.10.2 Mar 19 14:06:53 gen100 mountd[371]: authenticated mount request from gen102.imb-jena.de:784 Mar 19 14:06:54 gen100 portmap[23139]: connect from 192.168.234.3 to getport(nfs) Mar 19 14:06:54 gen100 mountd[371]: authenticated mount request from gen108.imb-jena.de:732 Mar 19 14:06:54 gen100 portmap[23175]: connect from 192.168.234.20 to getport(nfs) Mar 19 14:07:00 gen100 portmap[23684]: connect from 192.168.234.18 to getport(nlockmgr) Mar 19 14:07:00 gen100 portmap[23686]: connect from 192.168.234.19 to getport(nlockmgr) Mar 19 14:07:00 gen100 kernel: lockd: attempt to release unknown file! Mar 19 14:07:00 gen100 portmap[23687]: connect from 127.0.0.1 to getport(status) Mar 19 14:07:00 gen100 portmap[23689]: connect from 127.0.0.1 to getport(status) Mar 19 14:07:00 gen100 kernel: lockd: attempt to release unknown file! Mar 19 14:07:01 gen100 last message repeated 3 times Mar 19 14:07:01 gen100 portmap[23720]: connect from 192.168.234.2 to getport(nlockmgr) Mar 19 14:07:01 gen100 kernel: lockd: attempt to release unknown file! Mar 19 14:07:01 gen100 portmap[23722]: connect from 127.0.0.1 to getport(status) Mar 19 16:33:06 gen100 syslogd 1.3-3: restart.
--- kernel 2.2.2 ---
Mar 19 20:40:58 gen100 modprobe: can't locate module binfmt-464c Mar 19 20:40:58 gen100 modprobe: can't locate module binfmt-464c Mar 19 20:41:09 gen100 routed[191]: packet from unknown router, 192.168.10.2 Mar 19 20:41:11 gen100 routed[191]: packet from unknown router, 0.0.0.0 Mar 19 20:41:29 gen100 automount[534]: attempting to mount entry /gen/asp Mar 19 20:41:29 gen100 automount[963]: lookup(yp): looking up asp Mar 19 20:41:29 gen100 automount[963]: lookup(yp): asp -> kant:/asp Mar 19 20:41:29 gen100 automount[963]: expanded entry: kant:/asp Mar 19 20:41:29 gen100 automount[963]: parse(sun): core of entry: kant:/asp Mar 19 20:41:29 gen100 automount[963]: mount(nfs): calling mkdir /gen/asp Mar 19 20:41:29 gen100 automount[963]: mount(nfs): calling mount -t nfs -s -o rsize=8192,wsize=8192,actimeo=0 kant:/asp /gen/asp Mar 19 20:41:29 gen100 automount[963]: mount(nfs): mounted kant:/asp on /gen/asp Mar 19 20:41:37 gen100 portmap[1032]: connect from 192.168.234.22 to getport(nlockmgr) Mar 19 20:41:37 gen100 portmap[1033]: connect from 127.0.0.1 to getport(status) Mar 19 20:41:40 gen100 routed[191]: packet from unknown router, 192.168.10.2 Mar 19 20:41:41 gen100 routed[191]: packet from unknown router, 0.0.0.0 Mar 19 20:42:04 gen100 portmap[1044]: connect from 192.168.234.4 to getport(nlockmgr) Mar 19 20:42:05 gen100 portmap[1049]: connect from 192.168.234.18 to getport(nlockmgr) Mar 19 20:42:05 gen100 portmap[1050]: connect from 127.0.0.1 to getport(status) Mar 19 20:42:07 gen100 kernel: lockd: attempt to release unknown file! Mar 19 20:42:07 gen100 portmap[1052]: connect from 127.0.0.1 to getport(status) Mar 19 20:42:07 gen100 kernel: lockd: attempt to release unknown file! Mar 19 20:42:07 gen100 portmap[1051]: connect from 192.168.234.19 to getport(nlockmgr) Mar 19 20:42:07 gen100 kernel: lockd: attempt to release unknown file! Mar 19 20:42:07 gen100 last message repeated 7 times Mar 19 20:42:07 gen100 portmap[1053]: connect from 192.168.234.5 to getport(nlockmgr) Mar 19 20:42:08 gen100 portmap[1054]: connect from 127.0.0.1 to getport(status) Mar 19 20:42:08 gen100 portmap[1055]: connect from 192.168.234.6 to getport(nlockmgr) Mar 19 20:42:08 gen100 kernel: lockd: attempt to release unknown file! Mar 19 20:42:08 gen100 portmap[1056]: connect from 127.0.0.1 to getport(status) Mar 20 07:38:31 gen100 syslogd 1.3-3: restart.
--- kernel 2.2.3-ac3 ---
Mar 21 20:06:15 gen100 automount[432]: attempting to mount entry /gen/asp Mar 21 20:06:15 gen100 automount[10759]: lookup(yp): looking up asp Mar 21 20:06:15 gen100 automount[10759]: lookup(yp): asp -> kant:/asp Mar 21 20:06:15 gen100 automount[10759]: expanded entry: kant:/asp Mar 21 20:06:15 gen100 automount[10759]: parse(sun): core of entry: kant:/asp Mar 21 20:06:15 gen100 automount[10759]: mount(nfs): calling mkdir /gen/asp Mar 21 20:06:15 gen100 automount[10759]: mount(nfs): calling mount -t nfs -s -o rsize=8192,wsize=8192,actimeo=0 kant:/asp /gen/asp Mar 21 20:06:15 gen100 automount[10759]: mount(nfs): mounted kant:/asp on /gen/asp Mar 21 20:06:21 gen100 portmap[10829]: connect from 192.168.234.22 to getport(nlockmgr) Mar 21 20:06:21 gen100 portmap[10830]: connect from 127.0.0.1 to getport(status) Mar 21 20:06:22 gen100 routed[154]: packet from unknown router, 192.168.10.2 Mar 21 20:06:27 gen100 portmap[10834]: connect from 192.168.234.6 to getport(mountd) Mar 21 20:06:27 gen100 mountd[366]: authenticated unmount request from gen105.imb-jena.de:661 Mar 21 20:06:35 gen100 routed[154]: packet from unknown router, 0.0.0.0 Mar 21 20:06:41 gen100 portmap[10838]: connect from 192.168.234.6 to getport(mountd) Mar 21 20:06:41 gen100 kernel: svc: unknown version (3) Mar 21 20:06:41 gen100 kernel: svc: unknown version (3) Mar 21 20:06:41 gen100 portmap[10839]: connect from 193.174.234.70 to getport(nfs) Mar 21 20:06:41 gen100 mountd[366]: authenticated mount request from gen105.imb-jena.de:664 Mar 21 20:06:41 gen100 portmap[10840]: connect from 193.174.234.70 to getport(mountd) Mar 21 20:06:41 gen100 portmap[10841]: connect from 193.174.234.69 to getport(nfs) Mar 21 20:06:41 gen100 portmap[10842]: connect from 193.174.234.69 to getport(mountd) Mar 21 20:06:42 gen100 portmap[10843]: connect from 192.168.234.6 to getport(nfs) Mar 21 20:06:42 gen100 portmap[10844]: connect from 193.174.234.196 to getport(nfs) Mar 21 20:06:42 gen100 kernel: svc: unknown version (3) Mar 21 20:06:42 gen100 mountd[366]: authenticated mount request from sarton.imb-jena.de:805 Mar 21 20:06:42 gen100 portmap[10845]: connect from 193.174.234.196 to getport(mountd) Mar 21 20:06:42 gen100 portmap[10846]: connect from 193.174.234.70 to getport(nfs) Mar 21 20:06:42 gen100 mountd[366]: authenticated mount request from kant.imb-jena.de:790 Mar 21 20:06:42 gen100 portmap[10847]: connect from 193.174.234.70 to getport(nfs) Mar 21 20:06:42 gen100 portmap[10848]: connect from 193.174.234.70 to getport(nlockmgr) Mar 21 20:06:42 gen100 kernel: svc: unknown program 100227 (me 100003) Mar 21 20:06:42 gen100 portmap[10849]: connect from 193.174.234.69 to getport(nfs) Mar 21 20:06:42 gen100 mountd[366]: authenticated mount request from quine.imb-jena.de:783 Mar 21 20:06:42 gen100 portmap[10850]: connect from 193.174.234.69 to getport(nfs) Mar 21 20:06:42 gen100 portmap[10851]: connect from 193.174.234.69 to getport(nlockmgr) Mar 21 20:06:42 gen100 kernel: svc: unknown program 100227 (me 100003) Mar 21 20:06:42 gen100 portmap[10852]: connect from 192.168.234.20 to getport(mountd) Mar 21 20:06:43 gen100 portmap[10853]: connect from 193.174.234.196 to getport(nfs) Mar 21 20:06:43 gen100 portmap[10854]: connect from 193.174.234.196 to getport(nfs) Mar 21 20:06:43 gen100 portmap[10855]: connect from 193.174.234.196 to getport(nlockmgr) Mar 21 20:06:43 gen100 kernel: svc: unknown program 100227 (me 100003) Mar 21 20:06:43 gen100 mountd[366]: authenticated mount request from gen108.imb-jena.de:825 Mar 21 20:06:43 gen100 portmap[10858]: connect from 192.168.234.20 to getport(nfs) Mar 21 20:06:46 gen100 portmap[10890]: connect from 192.168.234.21 to getport(nlockmgr) Mar 21 20:06:46 gen100 portmap[10891]: connect from 127.0.0.1 to getport(status) Mar 21 20:06:47 gen100 kernel: nfsd_create: dentry 07/15 not negative! Mar 21 20:06:47 gen100 portmap[10914]: connect from 127.0.0.1 to getport(status) Mar 21 20:06:47 gen100 portmap[10913]: connect from 192.168.234.19 to getport(nlockmgr) Mar 21 20:06:49 gen100 portmap[10968]: connect from 127.0.0.1 to getport(status) Mar 21 20:06:49 gen100 portmap[10967]: connect from 192.168.234.18 to getport(nlockmgr) Mar 21 20:06:50 gen100 portmap[10993]: connect from 192.168.234.4 to getport(nlockmgr) Mar 21 20:06:50 gen100 portmap[10994]: connect from 127.0.0.1 to getport(status) Mar 21 20:06:50 gen100 portmap[10997]: connect from 192.168.234.6 to getport(nlockmgr) Mar 21 20:06:50 gen100 kernel: lockd: attempt to release unknown file! Mar 21 20:06:50 gen100 kernel: lockd: attempt to release unknown file! Mar 21 20:06:50 gen100 portmap[10998]: connect from 127.0.0.1 to getport(status) Mar 21 20:06:50 gen100 kernel: lockd: attempt to release unknown file! Mar 21 20:27:46 gen100 syslogd 1.3-3: restart.
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