Date: Thu, 12 May 2016 17:18:43 +0200 From: Nikolaj Hansen <nikolaj.hansen@barnabas.dk> To: freebsd-stable@freebsd.org Subject: HP DL 585 / ACPI ID / ECC Memory / Panic Message-ID: <57349ED3.7060606@barnabas.dk> In-Reply-To: <57349D5B.50202@barnabas.dk> References: <57349D5B.50202@barnabas.dk>
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This is a cryptographically signed message in MIME format. --------------ms010003010809070402040803 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: quoted-printable Hi, I recently added a zfs disk array to my old HP 585 G1 Server. Immediately there was kernel panics and I have spent quite a bit of time figuring out what was really wrong. The system has 4 cpu cards with opteron double core processors. Each card has 4x2 gigabyte memory 4x2x4 =3D 32 gigabyte of total system mem. The memory is DDR400 ECC mem. The panic was very easily reproducable. I just had to issue enough reads to the system up until the faulty mem was accessed. Strangely I can run memtest86+ with the DDR setting on and I find no error what so ever. Adding hint.lapic.2.disabled=3D1 > /boot/loader.conf Immediately mitigates the error for FreeBSD. So here is my conclusion: If you can make the system stable by disabling one core on one cpu card: 1) The other cards / mem must be ok. 2) The mainboard must be ok since one of the cores on the cpu is still running / not barfing panics. 3) the cpu core with acpi 2 is probably also ok. it is on the same chip as a non disabled core. 4) It is likely down to a rotten DIMM. In place of mindlessly trying to find the culprit by switching dimms I would really like to identify the CPU, card and mem module from the os. Info here: http://pastebin.com/jqufNKck Thank you for your time and help. --=20 Med venlig hilsen / with regards Nikolaj Hansen --------------ms010003010809070402040803 Content-Type: application/pkcs7-signature; name="smime.p7s" Content-Transfer-Encoding: base64 Content-Disposition: attachment; filename="smime.p7s" Content-Description: S/MIME Cryptographic Signature MIAGCSqGSIb3DQEHAqCAMIACAQExDzANBglghkgBZQMEAgEFADCABgkqhkiG9w0BBwEAAKCC C2gwggUWMIIC/qADAgECAgRLjmB4MA0GCSqGSIb3DQEBCwUAMEUxCzAJBgNVBAYTAkRLMRIw EAYDVQQKEwlUUlVTVDI0MDgxIjAgBgNVBAMTGVRSVVNUMjQwOCBPQ0VTIFByaW1hcnkgQ0Ew HhcNMTAwNTI4MTExNTAwWhcNMjUwNTI4MTE0NTAwWjA/MQswCQYDVQQGEwJESzESMBAGA1UE CgwJVFJVU1QyNDA4MRwwGgYDVQQDDBNUUlVTVDI0MDggT0NFUyBDQSBJMIIBIjANBgkqhkiG 9w0BAQEFAAOCAQ8AMIIBCgKCAQEAuJ9NBefqoBGt8r58FANvBYYAIqccr9zWg3FqVnB1oPuW bWoYDsiQB4HAwcJi+MdY2XHtmpvCD8l23YOm2SIZFzKZxWQ3kfvWmnwM8BA7/NE/vqwAIV5J TqMLk/zNyn++CcAk1Rk+e8xF7KJ5dvFgcK6arViVAobxt0VfvAZody3GaLuT13/4QaKouCV/ 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