<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <HTML><HEAD> <META http-equiv=Content-Type content="text/html; charset=us-ascii"> <META content="MSHTML 6.00.6000.16414" name=GENERATOR></HEAD> <BODY> <DIV><SPAN class=281255505-20042007><FONT face=Arial size=2>Hey All,</FONT></SPAN></DIV> <DIV><SPAN class=281255505-20042007><FONT face=Arial size=2></FONT></SPAN> </DIV> <DIV><SPAN class=281255505-20042007><FONT face=Arial size=2>Having an interesting problem with a FC6 server regarding host bus errors - every now and again in the messages log there are the following:</FONT></SPAN></DIV> <DIV><SPAN class=281255505-20042007><FONT face=Arial size=2></FONT></SPAN> </DIV> <DIV><SPAN class=281255505-20042007><FONT face=Arial size=2>Apr 20 04:58:05 lftvm01 kernel: ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0<BR>Apr 20 04:58:05 lftvm01 kernel: ata2.00: (BMDMA stat 0x6)<BR>Apr 20 04:58:05 lftvm01 kernel: ata2.00: cmd 25/00:f8:d7:ef:61/00:00:1c:00:00/e0 tag 0 cdb 0x0 data 126976 in<BR>Apr 20 04:58:05 lftvm01 kernel: res 51/84:a7:28:f0:61/84:00:1c:00:00/e0 Emask 0x20 (host bus error)<BR>Apr 20 04:58:05 lftvm01 kernel: ata2.00: configured for UDMA/133<BR>Apr 20 04:58:05 lftvm01 kernel: ata2.01: configured for UDMA/133<BR>Apr 20 04:58:05 lftvm01 kernel: ata2: EH complete<BR>Apr 20 04:58:05 lftvm01 kernel: SCSI device sdc: 625142448 512-byte hdwr sectors (320073 MB)<BR>Apr 20 04:58:05 lftvm01 kernel: sdc: Write Protect is off<BR>Apr 20 04:58:05 lftvm01 kernel: SCSI device sdc: write cache: enabled, read cache: enabled, doesn't support DPO or FUA<BR>Apr 20 04:58:05 lftvm01 kernel: SCSI device sdd: 625142448 512-byte hdwr sectors (320073 MB)<BR>Apr 20 04:58:05 lftvm01 kernel: sdd: Write Protect is off<BR>Apr 20 04:58:05 lftvm01 kernel: SCSI device sdd: write cache: enabled, read cache: enabled, doesn't support DPO or FUA</FONT></SPAN></DIV> <DIV><FONT face=Arial size=2></FONT> </DIV> <DIV><FONT face=Arial size=2><SPAN class=281255505-20042007>and then every now and again</SPAN></FONT></DIV> <DIV><FONT face=Arial size=2><SPAN class=281255505-20042007>Apr 20 04:54:32 lftvm01 kernel: ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x2 frozen<BR>Apr 20 04:54:32 lftvm01 kernel: ata2.00: cmd 25/00:08:ff:3d:8c/00:01:1d:00:00/e0 tag 0 cdb 0x0 data 135168 in<BR>Apr 20 04:54:32 lftvm01 kernel: res 40/00:c7:d0:61:84/84:00:1d:00:00/e0 Emask 0x4 (timeout)<BR>Apr 20 04:54:39 lftvm01 kernel: ata2: port is slow to respond, please be patient (Status 0xd0)<BR>Apr 20 04:55:02 lftvm01 kernel: ata2: port failed to respond (30 secs, Status 0xd0)<BR>Apr 20 04:55:02 lftvm01 kernel: ata2: soft resetting port<BR>Apr 20 04:55:02 lftvm01 kernel: ata2.00: configured for UDMA/133<BR>Apr 20 04:55:02 lftvm01 kernel: ata2.01: configured for UDMA/133<BR>Apr 20 04:55:02 lftvm01 kernel: ata2: EH complete<BR></SPAN></FONT></DIV> <DIV><FONT face=Arial size=2><SPAN class=281255505-20042007>Doesn't always cause a crash but looks like sometimes it might. Have had a look around at various places and haven't found a definitive cause let alone an answer.</SPAN></FONT></DIV> <DIV><FONT face=Arial size=2><SPAN class=281255505-20042007></SPAN></FONT> </DIV> <DIV><FONT face=Arial size=2><SPAN class=281255505-20042007>If anyone has any ideas or theories please throw em out there. Curiously these errors only occur on ata2, we have 2 drives sitting on ata1 without an issue. ata1 drives are the "os" and ata2 drives are the "data"</SPAN></FONT></DIV> <DIV><FONT face=Arial size=2><SPAN class=281255505-20042007></SPAN></FONT> </DIV> <DIV><FONT face=Arial size=2><SPAN class=281255505-20042007>Some more detail about the machine / OS.</SPAN></FONT></DIV> <DIV><FONT face=Arial size=2><SPAN class=281255505-20042007>Kernel: 2.6.20-1.2933.fc6PAE</SPAN></FONT></DIV> <DIV><FONT face=Arial size=2><SPAN class=281255505-20042007>Drives: 4x WD 320Gb SATA Drives</SPAN></FONT></DIV> <DIV><FONT face=Arial size=2><SPAN class=281255505-20042007>ATA Module: ata_piix</SPAN></FONT></DIV> <DIV><FONT face=Arial size=2><SPAN class=281255505-20042007>CPU: Dual-Core Intel Xeon 3.0Ghz</SPAN></FONT></DIV> <DIV><FONT face=Arial size=2><SPAN class=281255505-20042007>Mem: 6Gb</SPAN></FONT></DIV> <DIV><FONT face=Arial size=2><SPAN class=281255505-20042007>Not exactly sure what the motherboard is - it's a "whitebox" server not Tier1 (IBM,HP,Dell)</SPAN></FONT></DIV> <DIV><FONT face=Arial size=2><SPAN class=281255505-20042007></SPAN></FONT> </DIV> <DIV><FONT face=Arial size=2><SPAN class=281255505-20042007>Cheers</DIV></SPAN></FONT> <DIV><STRONG><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Tahoma"></SPAN></STRONG> </DIV> <DIV><STRONG><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Tahoma">Dave Brown</STRONG> <BR><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Tahoma">IT Consultant</SPAN> <BR><SPAN style="FONT-SIZE: 8pt; COLOR: #808097; FONT-FAMILY: Tahoma">RHCE, MCP, CCA</SPAN> </DIV> <DIV class=Section1> <P><IMG height=40 alt="Loftus IT" src="cid:281255505@20042007-2CE0" width=135> <SPAN style="FONT-SIZE: 9pt; COLOR: #808097; FONT-FAMILY: Tahoma"><SPAN class=style31><BR>175 Fullarton Rd</SPAN> <SPAN class=style31><BR>Dulwich SA 5065</SPAN><BR><SPAN class=style31><BR>Ph: (08) 8304 8888<BR>Fax: (08) 8364 2910<BR>Mob: 0414 494 802</SPAN></SPAN></P> <P class=style4><SPAN style="FONT-SIZE: 7pt; COLOR: #808097; FONT-FAMILY: Tahoma"><SPAN class=style31>NOTE: This email and any files transmitted with it are confidential and may contain information intended only for the addressee(s). 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