I have a blade 460c server which is crashing once in a wile. I've turned on netdump to get some detailed info but it's not pointing me to the exact problem. Could someone help me to identify the prob? TIA

hereby the logging of netdump


Uhhuh. NMI received. Dazed and confused, but trying to continue
Uhhuh. NMI received. Dazed and confused, but trying to continue
Uhhuh. NMI received. Dazed and confused, but trying to continue
Uhhuh. NMI received. Dazed and confused, but trying to continue
You probably have a hardware problem with your RAM chips
Uhhuh. NMI received. Dazed and confused, but trying to continue
You probably have a hardware problem with your RAM chips
You probably have a hardware problem with your RAM chips
Uhhuh. NMI received. Dazed and confused, but trying to continue
Uhhuh. NMI received. Dazed and confused, but trying to continue
You probably have a hardware problem with your RAM chips
You probably have a hardware problem with your RAM chips
Uhhuh. NMI received. Dazed and confused, but trying to continue
You probably have a hardware problem with your RAM chips
You probably have a hardware problem with your RAM chips
You probably have a hardware problem with your RAM chips

CPU 4: Machine Check Exception: 4 Bank 0: b600002012000800
TSC c8b64a5766709 ADDR 32d6140040

CPU 7: Machine Check Exception: 5 Bank 5: b200000080200e0f
RIP !INEXACT! 10:<ffffffff8013cbd9> {__do_softirq+0x45/0xd0}
TSC c8b64a57668f3

CPU 5: Machine Check Exception: 4 Bank 0: b600002012000800
TSC c8b64a57669c5 ADDR 32d6140040

CPU 4: Machine Check Exception: 4 Bank 5: b200001044100e0f
TSC c8b64a5767270

CPU 5: Machine Check Exception: 4 Bank 5: b200001040100e0f
TSC c8b64a57679f5
Kernel panic - not syncing: Machine check
----------- [cut here ] --------- [please bite here ] ---------
Kernel BUG at panic:75
invalid operand: 0000 [1] SMP
CPU 7
Modules linked in: netconsole netdump md5 ipv6 parport_pc lp parport autofs4 i2c_dev i2c_core ocfs2(U) debugfs(U) ocfs2_dlmfs(U) ocfs2_dlm(U) ocfs2_nodemanager(U) configfs(U) sunrpc ds yenta_socket pcmcia_core loop button battery ac hw_random tg3 bnx2 dm_snapshot dm_zero<ffffffff80137e8a>{panic+211}
RSP: 0018:00000100081c5d18 EFLAGS: 00010086
RAX: 000000000000002d RBX: ffffffff80320cbc RCX: 0000000000000046
RDX: 0000000000008dad RSI: 0000000000000046 RDI: ffffffff803e4d80
RBP: 0000000000000900 R08: 00000003be10a402 R09: ffffffff80320cbc
R10: 0000000000000000 R11: 0000000000000000 R12: 00000000ffffffff
R13: ffffffff803db8c0 R14: 000c8b64a57662b0 R15: ffffffff80320cbc
FS: 0000000000000000(0000) GS:ffffffff804eda80(0000) knlGS:0000000000000000
CS: 0010 DS: 0018 ES: 0018 CR0: 000000008005003b
CR2: 0000000000e4f6c8 CR3: 00000000081c0000 CR4: 00000000000006e0
Process swapper (pid: 0, threadinfo 00000100081bc000, task 0000010421501030)
Stack: 0000003000000008 00000100081c5df8 00000100081c5d38 000c8b64a57679f5
0000000000008d6a 0000000000000046
<ffffffff80117a61>{print_mce+136} <ffffffff80117b39>{mce_available+0}
<ffffffff80117e2e>{do_machine_check+731} <ffffffff8013cbd9>{__do_softirq+69}
<ffffffff8013cbd9>{__do_softirq+69} <ffffffff8011147f>{machine_check+127}
<ffffffff8013cbd9>{__do_softirq+69} <EOE> <IRQ> <ffffffff8013cc95>{do_softirq+49}
<ffffffff80110bf5>{apic_timer_interrupt+133} <EOI> <ffffffff8010e84c>{mwait_idle+86}

Code: 0f 0b 54 01 32 80 ff ff ff ff 4b 00 31 ff e8 33 c0 fe ff e8
RIP <ffffffff80137e8a>{panic+211} RSP <00000100081c5d18>

Modules linked in: netconsole netdump md5 ipv6 parport_pc lp parport autofs4 i2c_dev i2c_core ocfs2(U) debugfs(U) ocfs2_dlmfs(U) ocfs2_dlm(U) ocfs2_nodemanager(U) configfs(U) sunrpc ds yenta_socket pcmcia_core loop button battery ac hw_random tg3 bnx2 dm_snapshot dm_zero dm_mirror ext3 jbd dm_mod qla2400(U) qla2300(U) lpfc scsi_transport_fc cciss usb_storage uhci_hcd ohci_hcd ehci_hcd sd_mod qla2xxx(U) scsi_mod qla2xxx_conf(U)
Pid: 0, comm: swapper Tainted: G M 2.6.9-55.ELsmp
RIP: 0010:[<ffffffff80137e8a>] <ffffffff80137e8a>{panic+211}
RSP: 0018:00000100081c5d18 EFLAGS: 00010086
RAX: 000000000000002d RBX: ffffffff80320cbc RCX: 0000000000000046
RDX: 0000000000008dad RSI: 0000000000000046 RDI: ffffffff803e4d80
RBP: 0000000000000900 R08: 00000003be10a402 R09: ffffffff80320cbc
R10: 0000000000000000 R11: 0000000000000000 R12: 00000000ffffffff
R13: ffffffff803db8c0 R14: 000c8b64a57662b0 R15: ffffffff80320cbc
FS: 0000000000000000(0000) GS:ffffffff804eda80(0000) knlGS:0000000000000000
CS: 0010 DS: 0018 ES: 0018 CR0: 000000008005003b
CR2: 0000000000e4f6c8 CR3: 00000000081c0000 CR4: 00000000000006e0

Call Trace:<ffffffff80137e76>{panic+191} <ffffffff80117a61>{print_mce+136}
<ffffffff80117b39>{mce_available+0} <ffffffff80117e2e>{do_machine_check+731}
<ffffffff8013cbd9>{__do_softirq+69} <ffffffff8013cbd9>{__do_softirq+69}
<ffffffff8011147f>{machine_check+127} <ffffffff8013cbd9>{__do_softirq+69}
<EOE> <IRQ> <ffffffff8013cc95>{do_softirq+49} <ffffffff80110bf5>{apic_timer_interrupt+133}
<EOI> <ffffffff8010e84c>{mwait_idle+86} <ffffffff8010e7dc>{cpu_idle+26}

...........

Since the log suggests that you may have a problem with your RAM I would recommend to test your RAM (using Memtest86+) and to check the if the settings in the BIOS are the ones recommended for your RAM.

If you're not loaded with the full compliment of DIMMs, I'd check that they're fitted in valid slots. You can check this against the system part location sticker on the inside of the BL460 lid. You don't mention which generation of BL460 you have. Please note that the DIMMs will differ between G1s, G2s, etc, and will have different Part Nos. They shouldn't be mixed.

You may be able to use HP's SmartStart Diagnostics, either from CD via a virtual drive set up in a laptop connected via the front panel dongle or they can be loaded onto a 4Gb USB key drive and again, run via the front panel dongle. HP have a free app to convert between CD and USB drive. You'd also have to connect a keyboard, mouse and screen to the dongle in the latter senario (OK, so there's only 2 USB ports on the dongle, you may get away with just the mouse and USB drive.)

Hope some of that's usefull.

Play Bonny!

thnx for the updates. I'll check the suugestions