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Old 01-11-2008, 12:43 PM
Andrew Miehs
Default 3ware Raid controllers and 64bit Etch

Dear List,

I have been having data corruption problems for the last two months on
7 servers.

After extensive testing, I have finally narrowed the problem down to
Debian Etch 2.6.18-5 kernel
with the 3ware PCI controller. The same machine using the onboard SATA
controller does not

corrupt data.

The machines would also hang occasionally - no errors displayed on

I upgraded to a 2.6.23-13 kernel.org kernel 24 hours ago, and have not
been able to reproduce
these problems since then - Previously it would take about 10 minutes
for the problem to appear.

I could reproduce these problems by using a java program to insert
logs (30,000,000 records)

into a local postgres 8.2.5 database -

After this I would see
"DETAIL: Could not open file "pg_clog/0495": No such file or

type messages in my postgres logs.

I had also managed to corrupt my SVN repository - md5s of the files no
longer matched

what was in the SVN database... (svnadmin verfify /path/to/repository)

Has anyone seen these problems?

Below - details as to my raid controller.



03:05.0 RAID bus controller: 3ware Inc 7xxx/8xxx-series PATA/SATA-RAID
(rev 01)

Subsystem: 3ware Inc 7xxx/8xxx-series PATA/SATA-RAID
Control: I/O+ Mem+ BusMaster+ SpecCycle+ MemWINV+ VGASnoop- ParErr-
Stepping- SERR+ FastB2B-
Status: Cap+ 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort-
<TAbort- <MAbort- >SERR- <PERR-

Latency: 64 (2250ns min), Cache Line Size: 64 bytes
Interrupt: pin A routed to IRQ 22
Region 0: I/O ports at e800 [size=16]
Region 1: Memory at febffc00 (32-bit, non-prefetchable) [size=16]
Region 2: Memory at fe000000 (32-bit, non-prefetchable) [size=8M]
Expansion ROM at f0100000 [disabled] [size=64K]
Capabilities: [40] Power Management version 1
Flags: PMEClk- DSI- D1+ D2- AuxCurrent=0mA

Status: D0 PME-Enable- DSel=0 DScale=0 PME-

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