Date: Mon, 07 Feb 2011 10:13:06 -0700 From: Warner Losh <imp@bsdimp.com> To: freebsd-arm@FreeBSD.org Subject: Re: FreeBSD on a DockStar - doesn't mount root Message-ID: <4D502822.2020408@bsdimp.com> In-Reply-To: <201102071656.11633.milu@dat.pl> References: <20110206181659.869861bf.torfinn.ingolfsen@broadpark.no> <201102062331.01760.hselasky@c2i.net> <20110207163835.41be5884.torfinn.ingolfsen@broadpark.no> <201102071656.11633.milu@dat.pl>
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On 02/07/2011 08:56, Maciej Milewski wrote:
> Monday 07 of February 2011 16:38:35 Torfinn Ingolfsen napisał(a):
>> Hello,
> ...
>> So it seems like this isn't a "delay" type problem.
> From these dmesg lines you posted in your first mail it looked that is too
> short time for kernel to recognize the usb device. I had similar problems on
> mips RS/RSPRO boards and had to use small patch to make the delay longer. I
> admit that I didn't know of kern.cam.boot_delay that time and haven't tried it
> on my boards.
I've used kern.cam.boot_delay on a RS-PRO board here that I run off the
SD card, which is just a da device.
Warner
> I don't know the real author of that patch.
> Additionally I'm booting my board using ufs label this way:
> ufs:ufs/rootfs
>
>
> diff --git a/sys/kern/vfs_mountroot.c b/sys/kern/vfs_mountroot.c
> index 496ea70..1956419 100644
> --- a/sys/kern/vfs_mountroot.c
> +++ b/sys/kern/vfs_mountroot.c
> @@ -87,6 +87,8 @@ __FBSDID("$FreeBSD$");
>
> static int parse_mount(char **);
> static struct mntarg *parse_mountroot_options(struct mntarg *, const char *);
> +static int mount_root_delay = 4;
> +TUNABLE_INT("mount_root_delay",&mount_root_delay);
>
> /*
> * The vnode of the system's root (/ in the filesystem, without chroot
> @@ -917,13 +919,17 @@ vfs_mountroot_wait(void)
> PICKUP_GIANT();
> mtx_lock(&mountlist_mtx);
> if (LIST_EMPTY(&root_holds)) {
> - mtx_unlock(&mountlist_mtx);
> - break;
> + if(0 == mount_root_delay--) {
> + mtx_unlock(&mountlist_mtx);
> + break;
> + }
> }
> if (ppsratecheck(&lastfail,&curfail, 1)) {
> printf("Root mount waiting for:");
> LIST_FOREACH(h,&root_holds, list)
> printf(" %s", h->who);
> + if (LIST_EMPTY(&root_holds))
> + printf(" %d
> secs...",mount_root_delay);
> printf("\n");
> }
> msleep(&root_holds,&mountlist_mtx, PZERO | PDROP, "roothold",
>
> Regards,
> Maciej Milewski
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