I'm having excellent stability with linux 2.4.0-test11.  My machine now
survives heavy nightly Amanda backups without being deadlocked on the
morning (the machine is a backup client only, and backups run every 2 days).

Here's my uprecords time:

     #               Uptime | System                                   Boot up 
----------------------------+-------------------------------------------------
     1    20 days, 01:35:37 | Linux 2.4.0-test11      Sat Nov 18 18:06:11 2000
     2    14 days, 23:22:14 | Linux 2.4.0-test7       Wed Oct 11 07:05:16 2000
     3    13 days, 11:43:50 | Linux 2.4.0-test10      Tue Oct 31 12:38:06 2000
     4    13 days, 11:31:53 | Linux 2.4.0-test7       Mon Sep 25 20:09:01 2000
     5     9 days, 08:19:12 | Linux 2.4.0-test5       Sat Aug 19 14:26:14 2000
     6     9 days, 04:46:42 | Linux 2.4.0-test7       Mon Sep 11 07:17:51 2000
     7     8 days, 17:31:57 | Linux 2.4.0-test7       Sat Sep  2 10:27:05 2000
     8     4 days, 11:22:46 | Linux 2.2.15            Sun Jul  2 23:24:40 2000
     9     4 days, 03:36:24 | Linux 2.2.15            Tue Aug  1 08:52:56 2000
    10     3 days, 19:49:11 | Linux 2.4.0-test11      Sat Dec  9 11:37:38 2000
----------------------------+-------------------------------------------------
-> now     3 days, 04:43:42 | Linux 2.4.0-test11      Wed Dec 13 07:48:25 2000
----------------------------+-------------------------------------------------
1up in     0 days, 15:05:29 |                         Sun Dec 17 03:37:28 2000
no1 in    16 days, 20:51:55 |                         Tue Jan  2 09:23:54 2001

The topline was with 2.4.0-test11-pre4, which did not lockup, but I had
to reboot it due to the presence of an NFS bug:

kernel BUG at /usr/src/linux-2.4.0-test11-pre4/include/linux/nfs_fs.h:164!

I now run 2.4.0-test11 final.

I had BAD experience with the linux-2.4.0-test12-pre4 and -pre6 kernels:
one locked up after 3 hours, and the other did not survive a full Amanda
backup.

My system disk is SCSI, and I have an extra IDE disk that I use for storage
only, on the hda interface (not using HPT).  I have flashed the official RU
BIOS, and have 2 Celerons 466 Mhz, not overclocked.

I stress the machine rather heavily: I'm constantly running 2 rc5des clients,
VMWare, plus xmms.  I do get some APIC errors, but far less than with
other kernels I've used.

There seems to be a combination of things making the -test11 series rather
stable on my BP6 (which is a rev 1.0 board with 300W PS).  I will try another
test series if the current kernel crashes before reaching #1, otherwise I
will keep using this kernel until the official 2.4.0.

Raphael
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