scsi_synchronize_cache - timeout

[Nate Lawson]

On Mon, 29 Sep 2003, Serge Negodyuck wrote:
> System:
>
> FreeBSD 4.9-PRERELEASE #5: Sun Sep 28 13:06:43 EEST 2003
>
> trm0: <Tekram DC395U/UW/F DC315/U Fast20 Wide SCSI Adapter> port 0xb400-0xb4ff
> mem 0xfeafe000-0xfeafefff irq 10 at device 1.0 on pci3
> da0 at trm0 bus 0 target 1 lun 0
> da0: <FUJITSU MAP3367NP 0108> Fixed Direct Access SCSI-3 device
> da0: 40.000MB/s transfers (20.000MHz, offset 15, 16bit), Tagged Queueing
> Enabled
> da0: 35046MB (71775284 512 byte sectors: 255H 63S/T 4467C)
>
> I have a problem with a delay of 5 minutes after command "shutdown -r now"
>
> So, questions are:
> - Is this a problem of SCSI controller or hard drive?

Nope.

> - Is it a good idea to make this delay tunable in kernel config?

No.

> - Will I have troubles if I change this delay to 20 seconds for example?

No, you'll just end up waiting 20 seconds before it reboots.

> - How can I help to fix this problem?

Post it to -current.  An interrupt is getting lost somewhere.  tegge's
patch may have fixed this already.  You might want to cvsup to today and
test again.

-Nate