Re: new Areca driver in 2.6.16-rc6-mm2 appears to be broken

From: Chris Caputo
Date: Thu Mar 30 2006 - 10:44:19 EST

I confirm I saw the problem while testing with ext2 and these two patches:

areca-raid-linux-scsi-driver.patch
areca-raid-linux-scsi-driver-update4.patch

Did update4 change the way the driver informs the scsi subsystem about the
dimensions of a volume, or the sector size, etc?

Chris

On Thu, 30 Mar 2006, erich wrote:
> Dear Chris Caputo,
>
> Could you tell me about the file system of testing volume on bonnie++ ?
> Does this issue come from different driver update?
> I had done more two weeks of long time testing on three machines with bonnie++
> and iometer benchmark utility.
> I have not got this phenomena in ext3 file system and reiserfs filesystem.
> But I can reproduce this message immediately on large file "900MB" copy from
> ARECA RAID volume format with ext2 file system.
> The ext2 file system seem have this bug after linux kernel version 2.6.3.
> I do same operation at linux 2.6.3 , it works fine.
> Now I am researching the files system kernel source, I hope you can help me to
> clear up the issue that what's happen with it
>
> Best Regartds
> Erich Chen
> ----- Original Message ----- From: "Chris Caputo" <ccaputo@xxxxxxx>
> To: "Erich Chen" <erich@xxxxxxxxxxxx>
> Sent: Wednesday, March 22, 2006 7:45 AM
> Subject: new Areca driver in 2.6.16-rc6-mm2 appears to be broken
>
>
> > Erich,
> >
> > The new Areca driver in 2.6.16-rc6-mm2 is broken as far as I can tell.
> >
> > I applied the Areca driver in Linux 2.6.16-rc6-mm2 to a 2.6.15.6 as
> > follows:
> >
> > cd /usr/src
> > wget
> > http://www.kernel.org/pub/linux/kernel/people/akpm/patches/2.6/2.6.16-rc6/2.6.16-rc6-mm2/broken-out/areca-raid-linux-scsi-driver.patch
> > wget
> > http://www.kernel.org/pub/linux/kernel/people/akpm/patches/2.6/2.6.16-rc6/2.6.16-rc6-mm2/broken-out/areca-raid-linux-scsi-driver-update4.patch
> > cd /usr/src/linux
> > cat ../areca-raid-linux-scsi-driver.patch | patch -p1
> > cat ../areca-raid-linux-scsi-driver-update4.patch | patch -p1
> >
> > After compiling a new 2.6.15.6 kernel with the driver I was able to boot
> > and things appeared fine until I ran a bonnie++ test. During the test the
> > following started spewing endlessly and the system was unusable:
> >
> > ...
> > attempt to access beyond end of device
> > sdb1: rw=0, want=134744080, limit=128002016
> > attempt to access beyond end of device
> > sdb1: rw=0, want=134744080, limit=128002016
> > attempt to access beyond end of device
> > sdb1: rw=0, want=134744080, limit=128002016
> > attempt to access beyond end of device
> > sdb1: rw=0, want=134744080, limit=128002016
> > attempt to access beyond end of device
> > sdb1: rw=0, want=134744080, limit=128002016
> > attempt to access beyond end of device
> > sdb1: rw=0, want=134744080, limit=128002016
> > attempt to access beyond end of device
> > sdb1: rw=0, want=134744080, limit=128002016
> > ...
> >
> > When only "areca-raid-linux-scsi-driver.patch" is used, the system works
> > fine for bonnie++ tests and general usage.
> >
> > The system is as follows:
> >
> > AMD Opteron 280 dual-core 2.4ghz. Revision E6, 256KB L1, 2048KB L2.
> > SuperMicro H8DAE (rev 1.11)
> > 8 gigabytes (4 * 2GB PC3200/DDR400 REG ECC)
> > Areca Tekram ARC-1160ML SATAII 16-port multi-lane with 256 megs RAM
> > Areca ARC-6120 Battery Backup Module
> > Four (4) Seagate ST3250823AS 250GB
> > Twelve (12) Western Digital WD2500JD 250GB
> >
> > Info on the RAID config is below.
> >
> > Please let me know how I can assist.
> >
> > Thank you,
> > Chris Caputo
> >
> > ---
> >
> > # areca rsf info
> > Num Name Disks TotalCap FreeCap DiskChannels State
> > ===============================================================================
> > 1 Raid Set # 00 14 3500.0GB 0.0GB FG3456789ABCDE Normal
> > ===============================================================================
> > GuiErrMsg<0x00>: Success.
> >
> > # areca vsf info
> > # Name Raid# Level Capacity Ch/Id/Lun State
> > ===============================================================================
> > 1 ARC-1160-VOL#00 1 Raid0+1 19.0GB 00/00/00 Normal
> > 2 ARC-1160-VOL#01 1 Raid0+1 1731.0GB 00/01/00 Normal
> > ===============================================================================
> > GuiErrMsg<0x00>: Success.
> >
> > # areca disk info
> > Ch ModelName Serial# FirmRev Capacity State
> > ===============================================================================
> > 1 ST3250823AS 4ND1JKDW 3.03 250.1GB HotSpare
> > 2 ST3250823AS 4ND1HEKE 3.03 250.1GB HotSpare
> > 3 ST3250823AS 4ND1DEFN 3.03 250.1GB RaidSet
> > Member(1)
> > 4 ST3250823AS 4ND1E37B 3.03 250.1GB RaidSet
> > Member(1)
> > 5 WDC WD2500JD-00 WD-WMAEH1416638 02.05D02 250.1GB RaidSet
> > Member(1)
> > 6 WDC WD2500JD-00 WD-WMAEH1415477 02.05D02 250.1GB RaidSet
> > Member(1)
> > 7 WDC WD2500JD-00 WD-WMAEH1408943 02.05D02 250.1GB RaidSet
> > Member(1)
> > 8 WDC WD2500JD-00 WD-WMAEH1428940 02.05D02 250.1GB RaidSet
> > Member(1)
> > 9 WDC WD2500JD-00 WD-WMAEH1416508 02.05D02 250.1GB RaidSet
> > Member(1)
> > 10 WDC WD2500JD-00 WD-WMAEH1416317 02.05D02 250.1GB RaidSet
> > Member(1)
> > 11 WDC WD2500JD-00 WD-WMAEH1596552 02.05D02 250.1GB RaidSet
> > Member(1)
> > 12 WDC WD2500SD-01 WD-WMAL71480351 08.02D08 250.1GB RaidSet
> > Member(1)
> > 13 WDC WD2500JD-00 WD-WMAEH1408933 02.05D02 250.1GB RaidSet
> > Member(1)
> > 14 WDC WD2500JD-00 WD-WMAEH1398573 02.05D02 250.1GB RaidSet
> > Member(1)
> > 15 WDC WD2500JD-00 WD-WMAEH1409027 02.05D02 250.1GB RaidSet
> > Member(1)
> > 16 WDC WD2500SD-01 WD-WMAL72085064 08.02D08 250.1GB RaidSet
> > Member(1)
> > ===============================================================================
> > GuiErrMsg<0x00>: Success.
>
>
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