plz help find out the reason behind the server reboot.

SUSE Linux Enterprise Extensions SLES Hardware
1

Hello

Hardware: HP 580 G7
OS: SLES 11 SP 1 x864

Just before the server rebooted, following are the events logged in the /var/log/messages

what/where is wrong ? Please help/Suggest.

2

cat /proc/mtrr

reg00: base=0x0c0000000 ( 3072MB), size= 1024MB, count=1: uncachable

dmesg shows

[    0.000000] DMI 2.7 present.
[    0.000000] last_pfn = 0x83ffff max_arch_pfn = 0x400000000
[    0.000000] MTRR default type: write-back
[    0.000000] MTRR fixed ranges enabled:
[    0.000000]   00000-9FFFF write-back
[    0.000000]   A0000-BFFFF uncachable
[    0.000000]   C0000-FFFFF write-protect
[    0.000000] MTRR variable ranges enabled:
[    0.000000]   0 base 000C0000000 mask FFFC0000000 uncachable
[    0.000000]   1 disabled
[    0.000000]   2 disabled
[    0.000000]   3 disabled
[    0.000000]   4 disabled
[    0.000000]   5 disabled
[    0.000000]   6 disabled
[    0.000000]   7 disabled
[    0.000000]   8 disabled
[    0.000000]   9 disabled
[    0.000000] x86 PAT enabled: cpu 0, old 0x7040600070406, new 0x7010600070106

also

[    3.469419] Firmware did not grant requested _OSC control
[    3.469424] aer 0000:00:01.0:pcie02: AER service couldn't init device: no _OSC support
[    3.469439] Firmware did not grant requested _OSC control
[    3.469442] aer 0000:00:02.0:pcie02: AER service couldn't init device: no _OSC support
[    3.469454] Firmware did not grant requested _OSC control
[    3.469455] aer 0000:00:03.0:pcie02: AER service couldn't init device: no _OSC support
[    3.469462] Firmware did not grant requested _OSC control
[    3.469464] aer 0000:00:04.0:pcie02: AER service couldn't init device: no _OSC support
[    3.469470] Firmware did not grant requested _OSC control
[    3.469472] aer 0000:00:05.0:pcie02: AER service couldn't init device: no _OSC support
[    3.469478] Firmware did not grant requested _OSC control
[    3.469480] aer 0000:00:06.0:pcie02: AER service couldn't init device: no _OSC support
[    3.469486] Firmware did not grant requested _OSC control
[    3.469488] aer 0000:00:07.0:pcie02: AER service couldn't init device: no _OSC support
[    3.469495] Firmware did not grant requested _OSC control
[    3.469497] aer 0000:00:08.0:pcie02: AER service couldn't init device: no _OSC support
[    3.469503] Firmware did not grant requested _OSC control
[    3.469504] aer 0000:00:09.0:pcie02: AER service couldn't init device: no _OSC support
[    3.469511] Firmware did not grant requested _OSC control