Re: 2.6.0-test2-mm1

Mike Fedyk
2003-08-09T00:28:35Z

On Sun, Jul 27, 2003 at 11:37:16PM -0700, Andrew Morton wrote:
>
> ftp://ftp.kernel.org/pub/linux/kernel/people/akpm/patches/2.6/2.6.0-test2/2.6.0-test2-mm1/
>
> - More CPU scheduler tweaks.
>
> - Some changes to the VM which are designed to further reduce the amount of
> writeout which happens off the tail of the page LRU.
>
> Some small benefits have been observed in the usual benchmarks. Needs
> careful testing.
>
> - Various other fixes from various people.

Hi there Andrew.

I have 2.6.0-test2-mm1 running on two (XP2600 & PII300 named 10.6) machines in this
scenario, and a pIII500 named fs running 2.4.20-rmap15e-fs196-1.4, and a
PIII550 named 10.4 running 2.4.21-rc1-rmap15g.

I have the xp2600 copying large directory trees from each of the three
systems over the network.

I get nfs errors from the activity with the 2.4 systems, but not from the
slowest system that's also running 2.6.

I also got an error "NFS: giant filename in readdir (len
792b9a88)!" but it doesn't attribute it to a certain client...

I see this all the time on my 2.4 nfs clients too, so it's not 2.6 specific.
Though it was interesting that there weren't any errors reported from the
2.6 nfs server.

Anyway, I'd like to know what the trouble is with this that I've been having
for a while now.

Thanks

xp2600:
00:00.0 Host bridge: VIA Technologies, Inc. VT8377 [KT400 AGP] Host Bridge
00:01.0 PCI bridge: VIA Technologies, Inc. VT8235 PCI Bridge
00:0a.0 VGA compatible controller: Trident Microsystems TGUI 9660/938x/968x
(rev d3)
00:0e.0 RAID bus controller: CMD Technology Inc PCI0680 (rev 02)
00:10.0 USB Controller: VIA Technologies, Inc. USB (rev 80)
00:10.1 USB Controller: VIA Technologies, Inc. USB (rev 80)
00:10.2 USB Controller: VIA Technologies, Inc. USB (rev 80)
00:10.3 USB Controller: VIA Technologies, Inc. USB 2.0 (rev 82)
00:11.0 ISA bridge: VIA Technologies, Inc. VT8235 ISA Bridge
00:11.1 IDE interface: VIA Technologies, Inc. VT82C586/B/686A/B PIPC Bus
Master IDE (rev 06)
00:12.0 Ethernet controller: VIA Technologies, Inc. VT6102 [Rhine-II] (rev 74)

xp2600 syslog:
Aug 8 16:55:18 srv-lr2600 kernel: nfs: server 10.4 OK
Aug 8 16:56:22 srv-lr2600 kernel: nfs: server 10.4 not responding, still
trying
Aug 8 16:56:22 srv-lr2600 kernel: nfs: server 10.4 OK
Aug 8 16:56:47 srv-lr2600 kernel: nfs: server fs not responding, still trying
Aug 8 16:56:47 srv-lr2600 kernel: nfs: server fs OK
Aug 8 16:56:50 srv-lr2600 kernel: nfs: server fs not responding, still trying
Aug 8 16:56:50 srv-lr2600 kernel: nfs: server fs OK
Aug 8 16:57:15 srv-lr2600 kernel: nfs: server 10.4 not responding, still
trying
Aug 8 16:57:15 srv-lr2600 kernel: nfs: server 10.4 OK
Aug 8 16:57:17 srv-lr2600 kernel: nfs: server 10.4 not responding, still
trying
Aug 8 16:57:17 srv-lr2600 kernel: nfs: server 10.4 OK
Aug 8 16:57:21 srv-lr2600 kernel: nfs: server 10.4 not responding, still
trying
Aug 8 16:57:21 srv-lr2600 kernel: nfs: server 10.4 OK
Aug 8 16:57:31 srv-lr2600 kernel: nfs: server 10.4 not responding, still
trying
Aug 8 16:57:31 srv-lr2600 kernel: nfs: server 10.4 not responding, still
trying
Aug 8 16:57:31 srv-lr2600 kernel: nfs: server 10.4 OK
Aug 8 16:57:31 srv-lr2600 kernel: nfs: server 10.4 OK
Aug 8 16:57:51 srv-lr2600 kernel: nfs: server fs not responding, still trying
Aug 8 16:57:51 srv-lr2600 kernel: nfs: server fs OK
Aug 8 16:58:42 srv-lr2600 kernel: nfs: server fs not responding, still trying
Aug 8 16:58:42 srv-lr2600 kernel: nfs: server fs OK
Aug 8 16:58:54 srv-lr2600 kernel: nfs: server 10.4 not responding, still
trying
Aug 8 16:58:54 srv-lr2600 kernel: nfs: server 10.4 OK
Aug 8 16:59:07 srv-lr2600 kernel: nfs: server 10.4 not responding, still
trying
Aug 8 16:59:07 srv-lr2600 kernel: nfs: server 10.4 OK
Aug 8 16:59:50 srv-lr2600 kernel: nfs: server fs not responding, still trying
Aug 8 16:59:50 srv-lr2600 kernel: nfs: server fs OK
Aug 8 16:59:51 srv-lr2600 kernel: nfs: server fs not responding, still trying
Aug 8 16:59:51 srv-lr2600 kernel: nfs: server fs OK
Aug 8 17:00:58 srv-lr2600 kernel: nfs: server fs not responding, still trying
Aug 8 17:00:58 srv-lr2600 kernel: nfs: server fs OK
Aug 8 17:01:22 srv-lr2600 kernel: nfs: server 10.4 not responding, still
trying
Aug 8 17:01:22 srv-lr2600 kernel: nfs: server 10.4 OK
Aug 8 17:01:26 srv-lr2600 kernel: NFS: giant filename in readdir (len
792b9a88)!
Aug 8 17:01:59 srv-lr2600 kernel: nfs: server 10.4 not responding, still
trying
Aug 8 17:01:59 srv-lr2600 last message repeated 2 times
Aug 8 17:01:59 srv-lr2600 kernel: nfs: server 10.4 OK
Aug 8 17:01:59 srv-lr2600 last message repeated 2 times
Aug 8 17:02:11 srv-lr2600 kernel: nfs: server fs not responding, still trying
Aug 8 17:02:11 srv-lr2600 kernel: nfs: server fs OK

vmstat:
0 2 0 7552 1478928 32724 0 0 5 4774 5856 1674 0 14 0 86
0 1 0 97024 1389524 32764 0 0 0 4735 6046 1734 0 14 0 85
0 1 0 8200 1478228 32860 0 0 0 5824 6110 1744 0 15 0 85
0 2 0 7040 1478104 34016 0 0 4 5292 6112 1770 0 15 0 85
0 2 0 192460 1284440 39600 0 0 0 6996 8789 3082 0 24 0 75
0 2 0 15092 1454596 45632 0 0 3 7851 9797 3301 0 28 0 72
0 3 0 53296 1407600 53768 0 0 3 8697 8521 3085 0 28 0 72
0 5 0 6696 1450928 56264 0 0 2 7903 10747 3853 0 32 0 68
0 7 0 7656 1451404 56308 0 0 1 9772 11195 4079 0 36 0 64
0 6 0 35712 1422992 56668 0 0 1 10428 11105 4117 0 37 0 63
0 5 0 7320 1446636 60580 0 0 47 9266 10373 3909 0 37 0 63
0 5 0 8068 1445088 61300 0 0 2 7959 10872 4021 0 33 0 67
0 5 0 6864 1446200 61076 0 0 0 9735 10713 3971 0 35 0 64
0 8 0 32300 1414148 66872 0 0 0 8824 11027 4200 0 36 0 64
0 7 0 5788 1436968 68768 0 0 0 9944 11230 4332 0 39 0 61
0 5 0 5784 1438292 67292 0 0 0 10764 11122 4184 0 39 0 61
0 5 0 6360 1434940 70472 0 0 5 11552 10707 4052 0 38 2 59
0 5 0 7532 1434312 70156 0 0 0 7860 11021 4111 0 35 0 65
0 4 0 7528 1435300 69288 0 0 5 10776 11244 4242 0 39 0 61
0 6 0 7080 1436852 68300 0 0 0 9002 11108 4143 0 36 0 64
0 3 0 7176 1439128 65928 0 0 0 11320 11264 4228 0 39 0 60
0 5 0 58536 1388564 65304 0 0 2 8709 10707 3988 0 35 0 64
0 3 0 31676 1416804 63980 0 0 0 9620 11173 4110 0 37 0 63
0 5 0 6360 1443248 62880 0 0 0 11070 11306 4156 0 39 0 61
0 5 0 6936 1443752 62012 0 0 0 8965 11151 4124 0 36 0 64
0 4 0 7528 1445472 59796 0 0 0 11077 11293 4196 0 39 0 61
0 5 0 15852 1434576 62800 0 0 0 10615 11199 4158 0 38 0 62
0 6 0 7224 1442660 63412 0 0 0 9675 11185 4127 0 37 0 63
0 5 0 7144 1444804 61592 0 0 0 9662 11146 4129 0 37 0 63
0 4 0 7580 1446844 59108 0 0 0 10283 11309 4144 0 38 0 62
0 6 0 4972 1452864 56176 0 0 1 10481 11256 4159 0 38 0 62
0 5 0 6424 1454372 53964 0 0 0 10686 11190 4066 0 37 0 63
0 6 0 5324 1459288 50328 0 0 0 9117 11137 4063 0 35 0 65
0 5 0 6412 1460396 48228 0 0 0 10657 11244 4159 0 38 0 62
0 6 0 5004 1463616 46492 0 0 6 9593 11127 4095 0 36 0 64
0 4 0 5132 1463024 46496 0 0 0 10694 11166 4133 0 38 0 62