<![CDATA[Slow rc.conf_mount_ro on APU with CF card]]>I have been travelling around for a few months and have now got back to having a real APU system running 2.2 to play with. I notice that it is slow doing /etc/rc.conf_mount_ro (user symptom is that it takes about 20 seconds to respond to pressing Save when making config changes in the webGUI)
The APU has a nice new CF card in it, so I do not expect it is running out of write cycles just yet.
This was an issue on Alix when 2.1 was being developed.
Do others have this problem?
Is there a patch that was made to 2.1/FreeBSD8.3 that also needs to be applied to 2.2/FreeBSD10?

]]>https://forum.netgate.com/topic/74363/slow-rc-conf_mount_ro-on-apu-with-cf-cardRSS for NodeTue, 19 May 2026 12:19:10 GMTMon, 06 Oct 2014 05:11:12 GMT60<![CDATA[Reply to Slow rc.conf_mount_ro on APU with CF card on Wed, 15 Oct 2014 09:07:23 GMT]]>2.2-BETA (amd64)
built on Tue Oct 14 17:37:25 CDT 2014
FreeBSD 10.1-RC2

[2.2-BETA][admin@apu22.localdomain]/root(8): time /etc/rc.conf_mount_rw
0.158u 0.055s 0:00.22 90.9%     4097+328k 0+30io 0pf+0w
[2.2-BETA][admin@apu22.localdomain]/root(9): time /etc/rc.conf_mount_ro
0.153u 0.069s 0:00.44 47.7%     4053+331k 0+43io 0pf+0w
[2.2-BETA][admin@apu22.localdomain]/root(10): time /etc/rc.conf_mount_rw
0.146u 0.069s 0:00.22 90.9%     4254+334k 0+30io 0pf+0w
[2.2-BETA][admin@apu22.localdomain]/root(11): time /etc/rc.conf_mount_ro
0.174u 0.047s 0:00.44 47.7%     3898+319k 0+42io 0pf+0w

My APU is feeling much happier now, thanks.

]]>https://forum.netgate.com/post/489412https://forum.netgate.com/post/489412Wed, 15 Oct 2014 09:07:23 GMT<![CDATA[Reply to Slow rc.conf_mount_ro on APU with CF card on Wed, 15 Oct 2014 02:13:17 GMT]]>i put the old sysctl there.
Test it and let us know after upgrading to latest snapshot.

]]>https://forum.netgate.com/post/489384https://forum.netgate.com/post/489384Wed, 15 Oct 2014 02:13:17 GMT<![CDATA[Reply to Slow rc.conf_mount_ro on APU with CF card on Wed, 15 Oct 2014 01:41:27 GMT]]>Also having this issue with 2.2 on one of the APU boards. As a bit of a temporary workaround to make things bearable to use you can check the box for the system to leave the media always mounted as RW in the nanoBSD menu.

]]>https://forum.netgate.com/post/489381https://forum.netgate.com/post/489381Wed, 15 Oct 2014 01:41:27 GMT<![CDATA[Reply to Slow rc.conf_mount_ro on APU with CF card on Wed, 08 Oct 2014 13:13:21 GMT]]>Started a ticket, https://redmine.pfsense.org/issues/3918, to track it.

The older patch probably needs updated and brought back in.

]]>https://forum.netgate.com/post/488340https://forum.netgate.com/post/488340Wed, 08 Oct 2014 13:13:21 GMT<![CDATA[Reply to Slow rc.conf_mount_ro on APU with CF card on Wed, 08 Oct 2014 06:17:49 GMT]]>Here is a sample of an APU with SD card system on 2.1.5, exactly the same hardware as the test system above:
2.1.5-RELEASE (amd64)
built on Mon Aug 25 07:44:45 EDT 2014
FreeBSD 8.3-RELEASE-p16

[2.1.5-RELEASE][root@xxx]/home/admin.phil(15): time /etc/rc.conf_mount_rw
0.201u 0.067s 0:00.27 96.2%     3477+686k 0+27io 0pf+0w
[2.1.5-RELEASE][root@xxx]/home/admin.phil(16): time /etc/rc.conf_mount_ro
0.206u 0.066s 0:00.33 78.7%     3582+704k 0+42io 0pf+0w

The mount RO takes only 330ms and is consistent when repeated.

]]>https://forum.netgate.com/post/488277https://forum.netgate.com/post/488277Wed, 08 Oct 2014 06:17:49 GMT<![CDATA[Reply to Slow rc.conf_mount_ro on APU with CF card on Wed, 08 Oct 2014 05:30:32 GMT]]>I just updated my APU with SD card to:
2.2-BETA (amd64)
built on Tue Oct 07 21:35:10 CDT 2014
FreeBSD 10.1-RC1

And here are the timings for RW and RO mount:

[2.2-BETA][root@apu22.localdomain]/root(4): time /etc/rc.conf_mount_rw
0.148u 0.062s 0:00.22 90.9%     4097+328k 0+30io 0pf+0w
[2.2-BETA][root@apu22.localdomain]/root(5): time /etc/rc.conf_mount_ro
0.146u 0.277s 0:35.52 1.1%      2012+253k 0+2441io 0pf+0w
[2.2-BETA][root@apu22.localdomain]/root(6): time /etc/rc.conf_mount_rw
0.162u 0.046s 0:00.21 95.2%     4097+328k 0+30io 0pf+0w
[2.2-BETA][root@apu22.localdomain]/root(7): time /etc/rc.conf_mount_ro
0.106u 0.313s 0:34.67 1.1%      2012+249k 0+2441io 0pf+0w
[2.2-BETA][root@apu22.localdomain]/root(8): time /etc/rc.conf_mount_rw
0.152u 0.056s 0:00.21 95.2%     3933+309k 0+30io 0pf+0w
[2.2-BETA][root@apu22.localdomain]/root(9): time /etc/rc.conf_mount_ro
0.111u 0.309s 0:34.51 1.1%      2006+233k 0+2424io 0pf+0w

Around 30+ seconds to go back to RO.

@obk has a similar timing and is using the i386 image - so we both get the same result regardless of the architecture.

Can some others contribute sample timings so we can see if this is a widespread issue?

]]>https://forum.netgate.com/post/488269https://forum.netgate.com/post/488269Wed, 08 Oct 2014 05:30:32 GMT<![CDATA[Reply to Slow rc.conf_mount_ro on APU with CF card on Wed, 08 Oct 2014 03:01:56 GMT]]>I've just setup a new APU system:

2.2-BETA (i386)
built on Mon Oct 06 03:16:41 CDT 2014

time /etc/rc.conf_mount_rw
0.160u 0.056s 0:00.60 35.0%    3420+289k 0+30io 0pf+0w
time /etc/rc.conf_mount_ro
0.180u 0.111s 0:36.79 0.7%      2481+242k 0+747io 0pf+0w

]]>https://forum.netgate.com/post/488254https://forum.netgate.com/post/488254Wed, 08 Oct 2014 03:01:56 GMT<![CDATA[Reply to Slow rc.conf_mount_ro on APU with CF card on Tue, 07 Oct 2014 18:38:17 GMT]]>It's pretty quick for me on an ALIX with a CF, and usually I could reproduce it there when it was an issue before.

Did this start happening on a certain snapshot?

What sort of times are you seeing?

]]>https://forum.netgate.com/post/488126https://forum.netgate.com/post/488126Tue, 07 Oct 2014 18:38:17 GMT<![CDATA[Reply to Slow rc.conf_mount_ro on APU with CF card on Mon, 06 Oct 2014 12:15:31 GMT]]>My mistake - too many years typing CF! Yes, I mean SD card.

]]>https://forum.netgate.com/post/487798https://forum.netgate.com/post/487798Mon, 06 Oct 2014 12:15:31 GMT<![CDATA[Reply to Slow rc.conf_mount_ro on APU with CF card on Mon, 06 Oct 2014 11:38:25 GMT]]>CF? In an APU? Connected how?

Or do you mean SD card?

]]>https://forum.netgate.com/post/487792https://forum.netgate.com/post/487792Mon, 06 Oct 2014 11:38:25 GMT