Machine automagically reboots with 2.6.23-rc2-mm2

Hi,

My machine reboots automatically after a few seconds of booting 2.6.23-rc2-mm2.
I've tried several ways to debug the problem, but I've had no success.
I am not sure if this problem has been reported already, a few simple searches
did not indicate that the problem had been reported

2.6.23-rc1-mm1 did not have this problem.


.config is attached with this email.

/proc/cpuinfo shows

processor       : 0
cpu             : POWER5 (gr)
clock           : 1654.344000MHz
revision        : 2.3 (pvr 003a 0203)

processor       : 1
cpu             : POWER5 (gr)
clock           : 1654.344000MHz
revision        : 2.3 (pvr 003a 0203)

processor       : 2
cpu             : POWER5 (gr)
clock           : 1654.344000MHz
revision        : 2.3 (pvr 003a 0203)

processor       : 3
cpu             : POWER5 (gr)
clock           : 1654.344000MHz
revision        : 2.3 (pvr 003a 0203)

timebase        : 206998000
machine         : CHRP IBM,9123-710

lspci shows

00:02.0 PCI bridge: IBM EADS-X PCI-X to PCI-X Bridge (rev 03)
00:02.2 PCI bridge: IBM EADS-X PCI-X to PCI-X Bridge (rev 03)
00:02.3 PCI bridge: IBM EADS-X PCI-X to PCI-X Bridge (rev 03)
00:02.4 PCI bridge: IBM EADS-X PCI-X to PCI-X Bridge (rev 03)
c0:01.0 Ethernet controller: Intel Corporation 82546EB Gigabit Ethernet Controller (Copper) (rev 01)
c0:01.1 Ethernet controller: Intel Corporation 82546EB Gigabit Ethernet Controller (Copper) (rev 01)
c8:01.0 USB Controller: NEC Corporation USB (rev 43)
c8:01.1 USB Controller: NEC Corporation USB (rev 43)
c8:01.2 USB Controller: NEC Corporation USB 2.0 (rev 04)
cc:01.0 Mass storage controller: Promise Technology, Inc. 20275 (rev 01)
d0:01.0 SCSI storage controller: Mylex Corporation AcceleRAID 600/500/400/Sapphire support Device (rev 04)
0001:00:02.2 PCI bridge: IBM EADS-X PCI-X to PCI-X Bridge (rev 03)
0001:00:02.4 PCI bridge: IBM EADS-X PCI-X to PCI-X Bridge (rev 03)
0001:00:02.6 PCI bridge: IBM EADS-X PCI-X to PCI-X Bridge (rev 03)
0001:d0:01.0 Ethernet controller: Intel Corporation 82545GM Gigabit Ethernet Controller (rev 04)

Normal kernel boot (memory info)

EEH: PCI Enhanced I/O Error Handling Enabled
PPC64 nvram contains 7168 bytes
Using dedicated idle loop
Top of RAM: 0xe9000000, Total RAM: 0xe9000000
Memory hole size: 0MB
On node 0 totalpages: 954368
  DMA zone: 954368 pages, LIFO batch:31
  DMA32 zone: 0 pages, LIFO batch:0
  Normal zone: 0 pages, LIFO batch:0
  HighMem zone: 0 pages, LIFO batch:0
[boot]0015 Setup Done
Built 1 zonelists


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	Warm Regards,
	Balbir Singh
	Linux Technology Center
	IBM, ISTL