My v4.5 server did a beep and I saw the following in the syslog (also replicated through a write to the terminal), anyone has a clue?

 

Message from syslogd@startank at Fri Jan 8 21:55:17 2010 ...

startank kernel: CR2: 00000000f846d000

Jan 8 21:55:17 startank kernel: BUG: unable to handle kernel paging request at f846d000

Jan 8 21:55:17 startank kernel: IP: [<f84628c4>] md_cmd_proc_read+0x41/0x54 [md_mod]

Jan 8 21:55:17 startank kernel: *pdpt = 0000000001426001 *pde = 0000000037556067 *pte = 0000000000000000

Jan 8 21:55:17 startank kernel: Oops: 0000 [#1] SMP

Jan 8 21:55:17 startank kernel: last sysfs file: /sys/devices/pci0000:00/0000:00:01.0/0000:01:00.2/0000:03:02.0/host13/target13:0:0/13:0:0:0/block/sdk/stat

Jan 8 21:55:17 startank kernel: Modules linked in: md_mod xor ata_piix e1000e sata_mv

Jan 8 21:55:17 startank kernel:

Jan 8 21:55:17 startank kernel: Pid: 4529, comm: cat Not tainted (2.6.31.6-unRAID #6) X7SB4/E

Jan 8 21:55:17 startank kernel: EIP: 0060:[<f84628c4>] EFLAGS: 00010207 CPU: 1

Jan 8 21:55:17 startank kernel: EIP is at md_cmd_proc_read+0x41/0x54 [md_mod]

Jan 8 21:55:17 startank kernel: EAX: d5e9df38 EBX: fffff267 ECX: 3ffff1db EDX: fffff267

Jan 8 21:55:17 startank kernel: ESI: f846d000 EDI: c86bbaf8 EBP: d5e9df04 ESP: d5e9def4

Jan 8 21:55:17 startank kernel: DS: 007b ES: 007b FS: 00d8 GS: 0033 SS: 0068

Jan 8 21:55:17 startank kernel: Process cat (pid: 4529, ti=d5e9c000 task=c411db00 task.ti=d5e9c000)

Jan 8 21:55:17 startank kernel: Stack:

Jan 8 21:55:17 startank kernel: d5e9df38 f8462883 00000000 c86b9000 d5e9df4c c109814d 00000c00 d5e9df3c

Jan 8 21:55:17 startank kernel: <0> 00000000 00001000 00000000 00001000 0804e000 c4391960 00000000 c4391960

Jan 8 21:55:17 startank kernel: <0> 00000c00 c86b9000 00000001 c4391960 c1098042 fffffffb d5e9df70 c1094b32

Jan 8 21:55:17 startank kernel: Call Trace:

Jan 8 21:55:17 startank kernel: [<f8462883>] ? md_cmd_proc_read+0x0/0x54 [md_mod]

Jan 8 21:55:17 startank kernel: [<c109814d>] ? proc_file_read+0x10b/0x22d

Jan 8 21:55:17 startank kernel: [<c1098042>] ? proc_file_read+0x0/0x22d

Jan 8 21:55:17 startank kernel: [<c1094b32>] ? proc_reg_read+0x56/0x6a

Jan 8 21:55:17 startank kernel: [<c1094adc>] ? proc_reg_read+0x0/0x6a

Jan 8 21:55:17 startank kernel: [<c1067ff6>] ? vfs_read+0x8a/0x114

Jan 8 21:55:17 startank kernel: [<c106838d>] ? sys_read+0x3b/0x60

Jan 8 21:55:17 startank kernel: [<c1002935>] ? syscall_call+0x7/0xb

Jan 8 21:55:17 startank kernel: Code: 55 f0 e8 5a a4 cc c8 8d 50 01 29 f2 39 d3 7c 0b 8b 45 0c 89 d3 c7 00 01 00 00 00 8b 45 f0 89 d9 81 c6 08 95 46 f8 c1 e9 02 89 38 <f3> a5 89 d9 83 e1 03 74 02 f3 a4 5a 89 d8 5b 5e 5f 5d c3 55 89

Jan 8 21:55:17 startank kernel: EIP: [<f84628c4>] md_cmd_proc_read+0x41/0x54 [md_mod] SS:ESP 0068:d5e9def4

Jan 8 21:55:17 startank kernel: CR2: 00000000f846d000

Jan 8 21:55:17 startank kernel: ---[ end trace da649d59628b2a7a ]---

 

 

Since I think this involves md_mod, email Tom with a copy of this, to make sure he sees it.

Have you tried to run memtest?

Yeah, everything's fine. Have 2x 2GB Kingston DDR-800 ECC memory sticks.