9.1-RELEASE slow boot

Fernando Apesteguía fernando.apesteguia at gmail.com
Tue Jun 11 06:19:50 UTC 2013

On Fri, Jun 7, 2013 at 11:04 PM, Polytropon <freebsd at edvax.de> wrote:
> On Fri, 7 Jun 2013 19:38:34 +0200, Fernando Apesteguía wrote:
>> Since I updated to 9.1-RELEASE my boot process seems to stall for a
>> while. Booting in verbose mode shows messages like these ones:
>> Opening device da0 -> 6 (repeated like 30 times or so)
>> Opening device da1 -> 6 (repeated like 30 times or so)
>> Opening device da2 -> 6 (repeated like 30 times or so)
>> Opening device da3 -> 6 (repeated like 30 times or so)
>> Those devices correspond to my internal SD card reader that doesn't
>> work on FreeBSD anyway. This seems some kind of probing right? I don't
>> want to wait for those devices. What can I do to speed up booting? I
>> didn't change my system settings either. Did anything related change
>> in the kernel about probing these type of devices?
> For comparable reasons in the past, I added the following
> setting to my kernel configuration:
>         options SCSI_DELAY=100
> The default value is 5000. It's the delay in milliseconds
> for the SCSI probe.

Sorry for my late response (sometimes real life comes first).

SCSI_DELAY in the code didn't change between 9.1[1] and 9.0[2] neither
did it in the configuration for the GENERIC kernels[3][4]. On both
occasions (9.0 and 9.1) I used the GENERIC kernels and I didn't change
this setting.

I will give it a try as soon as I can, but it still seems a little
strange to me that this process takes longer in 9.1 for no apparent


[1] http://fxr.watson.org/fxr/source/cam/scsi/scsi_all.c?v=FREEBSD91#L76
[2] http://fxr.watson.org/fxr/source/cam/scsi/scsi_all.c?v=FREEBSD90#L76
[3] http://svn.freebsd.org/base/releng/9.1/sys/amd64/conf/GENERIC
[4] http://svn.freebsd.org/base/releng/9.0/sys/amd64/conf/GENERIC

> --
> Polytropon
> Magdeburg, Germany
> Happy FreeBSD user since 4.0
> Andra moi ennepe, Mousa, ...

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