Re: Linux-2.6.0-test4: Kernel Panic in scsi_host_dev_release

Dr. Ernst Molitor
2003-08-26T07:21:14Z

Dear Michael Anderson,

thank you very much for your kind e-mail message and the patch you've
written.

On Tue, 2003-08-26 at 01:42, Mike Anderson wrote:
> I believe the problem you are hitting is a bug in the code I added for a
> doing a put on the parent in the release function. If a driver calls
> scsi_register, but then has a problem in there detect where they need to
> call scsi_unregister the parent pointer of the struct device may never
> be set.
>
> I you have time could you please try the patch below. I have compiled it
> only. I will try to run it with a modified driver that will fail in
> detect shortly.
>

My pleasure. Your patch fixes the problem I have seen - thank you very
much! Linux-2.6.3-test4 is up and running on the box I'm writing this
message on.

>
> We need to kfree the shost as the struct device is contained inside the
> scsi_host structure.

I see, thank you very much for your kind explanation.

Best wishes and regards,

Ernst