Oracle crash - help!

Question

Hi,
Xserve, OSX 10.3.6, Oracle 10g
oracle.crash.log says (what could be happening?):
Date/Time: 2006-06-21 16:17:36 +0200
OS Version: 10.3.6 (Build 7R28)
Report Version: 2
Command: oracle
Path: /Volumes/x_OSX/app/oracle/product/10.1.0/db_1/bin/oracle
Version: ??? (???)
PID: 3850
Thread: 0
Exception: EXC_BAD_ACCESS (0x0001)
Codes: KERN_PROTECTION_FAILURE (0x0002) at 0x00000020
Thread 0 Crashed:
0 oracleorax      0x028153ec slrac + 0xec (crt.c:300)
1 oracleorax      0x000dc704 ksedst + 0x3f8 (crt.c:300)
2 oracleorax      0x000dafc4 ksedmp + 0x2fc (crt.c:300)
3 oracleorax      0x0046defc ksfdmp + 0x1c (crt.c:300)
4 oracleorax      0x026f87f8 kgeriv + 0xe0 (crt.c:300)
5 oracleorax      0x000d98f0 ksesic2 + 0x78 (crt.c:300)
6 oracleorax      0x0142f794 kturdb + 0x894 (crt.c:300)
7 oracleorax      0x00646e7c kcoapl + 0xbb8 (crt.c:300)
8 oracleorax      0x001cb1bc kcbapl + 0xa0 (crt.c:300)
9 oracleorax      0x0025ebac kcrfw_redo_gen + 0x258c (crt.c:300)
10 oracleorax      0x001c9740 kcbchg1 + 0x2018 (crt.c:300)
11 oracleorax      0x006beb58 ktuchg + 0x14fc (crt.c:300)
12 oracleorax      0x0068776c ktbchg2 + 0xec (crt.c:300)
13 oracleorax      0x01d22170 kddchg + 0x6f0 (crt.c:300)
14 oracleorax      0x01d46b04 kduovw + 0x2a70 (crt.c:300)
15 oracleorax      0x01d3f84c kduurp + 0x7b4 (crt.c:300)
16 oracleorax      0x01d3b200 kdusru + 0xf80 (crt.c:300)
17 oracleorax      0x01698af4 kauupd + 0x21c (crt.c:300)
18 oracleorax      0x00ef8a80 updrow + 0xe44 (crt.c:300)
19 oracleorax      0x02209f58 qerupRowProcedure + 0x68 (crt.c:300)
20 oracleorax      0x02209464 qerupFetch + 0x4b0 (crt.c:300)
21 oracleorax      0x00efc728 updaul + 0xfec (crt.c:300)
22 oracleorax      0x00efe0c0 updThreePhaseExe + 0x10c (crt.c:300)
23 oracleorax      0x00efd714 updexe + 0x44c (crt.c:300)
24 oracleorax      0x01034e78 opiexe + 0x2404 (crt.c:300)
25 oracleorax      0x0014639c opiodr + 0x91c (crt.c:300)
26 oracleorax      0x0014e488 rpidrus + 0xe4 (crt.c:300)
27 oracleorax      0x027a221c skgmstack + 0x140 (crt.c:300)
28 oracleorax      0x0014b660 rpidru + 0x94 (crt.c:300)
29 oracleorax      0x0014b080 rpiswu2 + 0x370 (crt.c:300)
30 oracleorax      0x0014c918 rpidrv + 0xbdc (crt.c:300)
31 oracleorax      0x0014ce34 rpiexe + 0x68 (crt.c:300)
32 oracleorax      0x00b875a4 kqdsnu + 0x4ac (crt.c:300)
33 oracleorax      0x00655c78 kqrcmt + 0x3a8 (crt.c:300)
34 oracleorax      0x00127c2c ktcrcm + 0x514 (crt.c:300)
35 oracleorax      0x00c4bd8c kdnwor + 0x434 (crt.c:300)
36 oracleorax      0x00c4aef8 kdnAllocN + 0x260 (crt.c:300)
37 oracleorax      0x00c4e7d4 kdnnxt + 0xa0 (crt.c:300)
38 oracleorax      0x005bbf88 kkdlses + 0x114 (crt.c:300)
39 oracleorax      0x01725e60 kpolna + 0x5f8 (crt.c:300)
40 oracleorax      0x01721dc0 kpogsk + 0xb8 (crt.c:300)
41 oracleorax      0x0014639c opiodr + 0x91c (crt.c:300)
42 oracleorax      0x028bb2c0 ttcpip + 0x12bc (crt.c:300)
43 oracleorax      0x001490f8 opitsk + 0xad8 (crt.c:300)
44 oracleorax      0x007a69ac opiino + 0x67c (crt.c:300)
45 oracleorax      0x0014639c opiodr + 0x91c (crt.c:300)
46 oracleorax      0x00006360 opidrv + 0x404 (crt.c:300)
47 oracleorax      0x00007d18 sou2o + 0x90 (crt.c:300)
48 oracleorax      0x00002290 main + 0xe4 (crt.c:300)
49 oracleorax      0x00001c9c _start + 0x188 (crt.c:267)
50 dyld      0x8fe1a558 dyldstart + 0x64

Answer 1

"the uptime is not bad..." Does this mean I have been
lucky not experiencing a crash earlier?No, not at all. It just means that I see many databases that are stopped for every backup or for some reason daily or weekly. Some are kept open 7*24. I had one on a xserve that started december 2004 and stopped for the 10.3.9 upgrade in januari of this year... Not bad at all..
Do you think it is useful and/or necessary to take
this(exp-imp) action as a routine preventive measure
every couple of months or so?
No, use the db_block checking options to check for corruptions while running and take regular backups. Doing so you can resolve block corruption.
I have two other customers running on WinNT (Oracle
7) for more than 8 years without even touching the
database, besides upgrading to v 8 and Win2000 about
2 years ago. Is the OSX platform not 100% reliable
for production environment with Oracle 10g?The only problem I have had sofar was due to an unprotected powerfailure. The corruption that this caused will be on any platform. Problems I have with oracle on the mac is the current situation in which the future support is not very clear.
Ronald.