Re: [Iscsitarget-devel] [HELP]iscsi target crashed under pressure test

[Ross S. W. W. <RW...@me...>]

On Jul 20, 2009, at 8:47 PM, "hank peng" <pen...@gm...> wrote:

> Hi, folks:
> We have a self-built board, CPU is MPC8548 which is powerpc
> architecture. We want to do pressure test to DDRII DRAM to check if it
> can work in 533MHz.
> My idea is to use IET target to export a ramdisk file and then use
> IOmeter to do continuous test.
> RAMDISK size is set to 128M when configure my
>
> #mkfs.ext3 /dev/ram1
> #mount /dev/ram1 /mnt/iscsi
> #dd if=/dev/zero of=/mnt/iscsi/test bs=1024k count=100
>
> My ietd.conf:
> Target iqn.2009-07.com.storage:testiscsi.20091001080322
>         Lun 0 Path=/mnt/iscsi/test,Type=fileio
>         HeaderDigest    None,None
>         DataDigest      None,None
>         Wthreads        16
>
> #/etc/init.d/iscsi-target start
>
> On windows side, I can connect this target and network is in Gigabit
> enviroment, so pressure is enough.
>
> After three hours, IET target crashed with the following messages
> output on my console:
>
> iscsi_trgt: Logical Unit Reset (05) issued on tid:3 lun:0 by
> sid:4611687354162216963 (Function Complete)
> iscsi_trgt: write_data(434) error -104 at 0x4000013700000002:1
> iscsi_trgt: exit_tx(448) 8240 1 -104
>
> I don't know what error number -104 stands for? Is it safe to say our
> DDRII DRAM is not stable?
> BTW, IET target version is 0.4.17.
>

A quick google tells me it's a "connection reset by peer" error.

Maybe the MS ini crashed?

We should definitely trap and clean those in IET.

-Ross


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