URGENT: System reboots when copy to shared storage RHAS3 U2

[Carlos Lopez <clopmz yahoo com>]

Hi all,

  We have installed a test environment with 2 RHAS3 U2
(with latest updates). We need to test an Oracle 9i
(9.2.0.5).

  The problem is when we try to copy files to a shared
stoge. When the copy of archives reaches 1 GB, the
node from which the copy is made reboots. Samples:

Copy from local disk to disk on shared storage: system
reboots.
Copy from network to disk on shared storage: copy OK.
Copy from local disk to another partition on local
disk: copy OK.

  The SCSI controller is a HP NetRAID-2M. Some
information:

dmesg:

megaraid: v1.18k (Release Date: Thu Aug 28 10:05:11
EDT 2003)
megaraid: found 0x101e:0x1960:idx 0:bus 4:slot 0:func
0
scsi0 : Found a MegaRAID controller at 0xf883c000,
IRQ: 5
scsi0 : Enabling 64 bit support
megaraid: [H01.08:G01.02] detected 2 logical drives
megaraid: Firmware H.01.07/8/9 on 1M/2M controllers
megaraid: do not support 64 bit addressing.
megaraid: DISABLING 64 bit support.
megaraid: channel[1] is raid.
megaraid: channel[2] is raid.
megaraid: no BIOS enabled.
scsi0 : LSI Logic MegaRAID H01.08 254 commands 15
targs 5 chans 7 luns
blk: queue c3674c14, I/O limit 4095Mb (mask
0xffffffff)
scsi0: scanning virtual channel 0 for logical drives.
  Vendor: MegaRAID  Model: LD0 RAID0 69462R  Rev:   H 
  Type:   Direct-Access                      ANSI SCSI
revision: 02
blk: queue c3674e14, I/O limit 4095Mb (mask
0xffffffff)
  Vendor: MegaRAID  Model: LD1 RAID1 34731R  Rev:   H 
  Type:   Direct-Access                      ANSI SCSI
revision: 02
blk: queue f7597014, I/O limit 4095Mb (mask
0xffffffff)
scsi0: scanning virtual channel 1 for logical drives.
scsi0: scanning virtual channel 2 for logical drives.
scsi0: scanning physical channel 0 for devices.
scsi0: scanning physical channel 1 for devices.
  Vendor: HP        Model: D5989C            Rev: 1.05
  Type:   Processor                          ANSI SCSI
revision: 02
blk: queue f7597214, I/O limit 4095Mb (mask
0xffffffff)
Attached scsi disk sda at scsi0, channel 0, id 0, lun
0
Attached scsi disk sdb at scsi0, channel 0, id 1, lun
0
SCSI device sda: 142258176 512-byte hdwr sectors
(72836 MB)
 sda: sda1 sda2
SCSI device sdb: 71129088 512-byte hdwr sectors (36418
MB)
 sdb: sdb1 sdb2 sdb3 sdb4 < >
libata version 1.01 loaded.
ata_piix version 1.00


Kernel version:

Linux invtst1 2.4.21-15.0.4.EL #1 Sat Jul 31 01:33:50
EDT 2004 i686 i686 i386 GNU/Linux

Modules.conf:

alias eth0 8139too
alias eth1 3c59x
alias scsi_hostadapter megaraid
alias scsi_hostadapter1 ata_piix
alias usb-controller usb-uhci
alias usb-controller1 ehci-hcd

lsmod:

Module                  Size  Used by    Not tainted
iptable_filter          2412   0  (autoclean) (unused)
ip_tables              15776   1  [iptable_filter]
softdog                 2972   1 
audit                  89592   1 
3c59x                  29616   1 
8139too                17384   1 
mii                     3956   0  [8139too]
crc32                   3712   0  [8139too]
microcode               5656   0  (autoclean)
loop                   11928   0  (autoclean)
keybdev                 2976   0  (unused)
mousedev                5492   0  (unused)
hid                    22084   0  (unused)
input                   5856   0  [keybdev mousedev
hid]
ehci-hcd               19976   0  (unused)
usb-uhci               25836   0  (unused)
usbcore                77152   1  [hid ehci-hcd
usb-uhci]
ext3                   85704   8 
jbd                    50572   8  [ext3]
lvm-mod                64160  13 
ata_piix                4808   0  (unused)
libata                 35364   0  [ata_piix]
megaraid               30052   7 
sd_mod                 13360  14 
scsi_mod              104232   3  [ata_piix libata
megaraid sd_mod]

 Please is very urgent: how can i solve this problem??
Can I put some buffer access disk options on megaraid
module???

Thank you very much and sorry for my bad english

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