Nicholas A. Bellinger wrote:
> Hi Mike!

Hey, looks like you doing some more cool stuff. Don't you have a job 
where you have to hack on boring stuff like the rest of us :)

> On Sat, 2008-06-28 at 15:33 -0500, Mike Christie wrote:
>> What version of open-iscsi and kernel are you using? And are you using 
>> the kernel modules with open-iscsi or the ones that come with the kernel?
> Whoops, forgot to include that tid-bit:
> open-iscsi: 2.0.730-1etch1
> kernel: I am using v2.6.22.19-kdb, and Jerome is using
> v2.6.22-4-vserver-amd64

Ah if your disk are using write back cache then you are going to hit 
some problems. So if you see this in /var/log/messages when you loging:

kernel: sd 9:0:0:1: [sdb] Write cache: enabled,

then later when you run iscsiadm to log out you see:

kernel: sd 9:0:0:1: [sdb] Synchronizing SCSI cache

Then you are going to hit problems due to the scsi sysfs interface 
changing on us. iscsiadm is going to hang. IO is going to hang. You 
basically have to reboot the box by hand.

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