Re: bigdisk and scsi_da

Rong-en Fan wrote:
> On 12/20/06, Scott Long <scottl_at_samsco.org> wrote:
>> Rong-en Fan wrote:
>> > On 12/20/06, Scott Long <scottl_at_samsco.org> wrote:
>> >> Rong-en Fan wrote:
>> >> > It seems to me that scsi_da.c reports the wrong size:
>> >> >
>> >> > da1 at mpt0 bus 0 target 0 lun 0
>> >> > da1: <SILVER TN-6212S-U4D 347G> Fixed Direct Access SCSI-5 device
>> >> > da1: 320.000MB/s transfers (160.000MHz, offset 127, 16bit), Tagged
>> >> > Queueing Enabled
>> >> > da1: 0MB (1 0 byte sectors: 0H 0S/T 0C)
>> >> >
>> >> > While geom shows the right one:
>> >> >
>> >> > Geom name: da1
>> >> > Providers:
>> >> > 1. Name: da1
>> >> >   Mediasize: 4991221760000 (4.5T)
>> >> >   Sectorsize: 512
>> >> >   Mode: r0w0e0
>> >> >   fwsectors: 63
>> >> >   fwheads: 255
>> >> >
>> >> > Speaking of bigdisk, can gpt modify on-disk table on-fly?
>> >> >
>> >> > Regards,
>> >> > Rong-En Fan
>> >>
>> >> Just for reference, what version of FreeBSD is this?
>> >
>> > Ah, it's a 6.2-RC1.  I thought I posted to stable_at_...
>> >
>>
>> Ok, it makes a whole lot more sense now.  7-CURRENT has checks to
>> prevent the divide-by-zero.  I'm still looking into the actual
>> bug, though.
> 
> OK. Manually backports rev 1.10 of sys/dev/cam/cam.c solved this
> divided by zero problem. Could you or mjacob MFC this to RELENG_6
> and/or RELENG_6_2?
> 
> Thanks,
> Rong-En Fan

Does it just prevent the panic, or does it also fix the bogus display too?

Scott