Messages in this thread | | | Date | Thu, 30 Oct 2003 21:29:26 -0500 | From | "Dave Dodge" <> | Subject | Re: ANNOUNCE: User-space System Device Enumation (uSDE) |
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Greg KH writes: > On Thu, Oct 30, 2003 at 07:45:08PM -0500, David Dodge wrote: [...] > > Mainly I'm asking because I did try putting a hotplug script into an > > initramfs a few weeks ago (using -test7), and it didn't appear to be > > invoked for e.g. the VESA framebuffer. So I want to make sure this is a > > "future" capability and not something that should have worked :-) > > This is something that should have worked for you today, /sbin/hotplug > does get called during early boot, before init is started up.
Okay, I'll keep working at it. Unfortunately my main test system has since had a major hardware failure and I haven't gotten a replacement set up yet.
In the meantime, from a quick look at the kernel code I see this:
- invocations of /sbin/hotplug normally go through call_usermodehelper.
- kernel/kmod.c: call_usermodehelper does this prior to scheduling any work:
if (!system_running) return -EBUSY;
- init/main.c: system_running is not set non-zero until just prior to starting init.
So it looks like calls to hotplug are dropped while compiled-in drivers are initializing. Or am I missing something obvious? I needed a one-line patch to be able to boot into initramfs; do I need another to enable call_usermodehelper earlier? - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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