Hi guys,
I've just bought a AOC-SASLP-MV8 controller and put 6 Samsung Ecogreen 1.5 TB
disks on it. (/dev/sd[cdefgh]).
I've done a fresh ubuntu10.04.2 x64 server install on a raid1 ext4 WD Raptor
(36GB) which is connected to the mainboard SATA.
Don't know if it's relevant, but my AOC-SASLP-MV8 controller is not bootable
because I've disabled the interrupt 13 thingy.
First thing I did was write the Samsung disks full with zeros simultaneously
(dd if=/dev/zero of=/dev/sd[cdefgh] bs=1M)
Then I read them completely simultaneously (dd if=/dev/sd[cdefgh] bs=1M
of=/dev/null)
That went fine, no lines showed up in dmesg and average speed was
~100MB/s per disk.
The following thing I did was create a RAID5 array:
mdadm --create /dev/md5 -v -f -l 5 -n 6 /dev/sdc1 /dev/sdd1 /dev/sde1 /dev/sdf1
/dev/sdg1 /dev/sdh1
This went fine for at least 20 minutes, then I went to do other stuff. The
server was not used for anything else (except routing/firewalling) and
/proc/mdstat showed it was rebuilding the drive. Only thing I did while
rebuilding was starting the ipv6 tunnel.
When I got back, I noticed the following in /proc/mdstat:
Personalities : [linear] [multipath] [raid0] [raid1] [raid6] [raid5] [raid4]
[raid10]
md5 : active raid5 sdh1[6](F) sdg1[7](F) sdf1[8](F) sde1[9](F) sdd1[10](F)
sdc1[11](F)
7325679680 blocks level 5, 64k chunk, algorithm 2 [6/0] [______]
Not good! It broke completely with the same messages other users here had.
I've attached my dmesg output.
Also some more info:
root@pollux:~# lsmod | grep mvsas
mvsas 49328 6
libsas 52890 1 mvsas
scsi_transport_sas 33021 2 mvsas,libsas
root@pollux:~# modinfo mvsas
filename: /lib/modules/2.6.32-37-server/kernel/drivers/scsi/mvsas/mvsas.ko
license: GPL
version: 0.8.2
description: Marvell 88SE6440 SAS/SATA controller driver
author: Jeff Garzik <jgar...@pobox.com>
srcversion: EE82F304DFF3A7F06086B62
alias: pci:v00009005d00000450sv*sd*bc*sc*i*
alias: pci:v000017D3d00001320sv*sd*bc*sc*i*
alias: pci:v000017D3d00001300sv*sd*bc*sc*i*
alias: pci:v000011ABd00009180sv*sd*bc*sc*i*
alias: pci:v000011ABd00009480sv*sd*bc*sc*i*
alias: pci:v000011ABd00006485sv*sd*bc*sc*i*
alias: pci:v000011ABd00006440sv*sd*bc*sc*i*
alias: pci:v000011ABd00006440sv*sd00006480bc*sc*i*
alias: pci:v000011ABd00006340sv*sd*bc*sc*i*
alias: pci:v000011ABd00006320sv*sd*bc*sc*i*
depends: libsas,scsi_transport_sas
vermagic: 2.6.32-37-server SMP mod_unload modversions
** Attachment added: "dmesg output"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/554398/+attachment/2675323/+files/dmesg.out
--
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/554398
Title:
Lucid crash on heavy DB i/o (mvsas?)
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/554398/+subscriptions
--
ubuntu-bugs mailing list
ubuntu-bugs@lists.ubuntu.com
https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
