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Date:      Tue, 30 Nov 1999 18:13:13 -0500
From:      Christopher Masto <chris@netmonger.net>
To:        Warner Losh <imp@village.org>
Cc:        Nick Hibma <hibma@skylink.it>, Mike Smith <msmith@FreeBSD.ORG>, FreeBSD CURRENT Mailing List <current@FreeBSD.ORG>
Subject:   Re: PCCARD eject freeze (was Re: your mail)
Message-ID:  <19991130181313.B24151@netmonger.net>
In-Reply-To: <199911302304.QAA05780@harmony.village.org>; from Warner Losh on Tue, Nov 30, 1999 at 04:04:40PM -0700
References:  <19991130165407.A467@netmonger.net> <19991130160829.A13848@netmonger.net> <199911301740.JAA02860@mass.cdrom.com> <Pine.BSF.4.20.9911302008360.1226-100000@henny.jrc.it> <19991130160829.A13848@netmonger.net> <199911302112.OAA05264@harmony.village.org> <19991130165407.A467@netmonger.net> <199911302159.OAA05508@harmony.village.org> <19991130173920.A22943@netmonger.net> <199911302304.QAA05780@harmony.village.org>

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On Tue, Nov 30, 1999 at 04:04:40PM -0700, Warner Losh wrote:
> In message <19991130173920.A22943@netmonger.net> Christopher Masto writes:
> : Hey, we're getting somewhere.  It works, in that it stops the panic.
> : I get the "ed0: unloaded" message, and the machine doesn't panic, but
> : there are still some problems.  It seems that device_delete_child
> : is failing (I forgot to print the return code, but it is not zero),
> : and reinserting the card results in "ed0 already exists, using
> : next available unit number", and then the dreaded "driver allocation
> : failed" (presumably the resources have not been freed).
> : 
> : Putting in a different kind of card ends up with two children, so
> : it seems that the only part of the delete actually happens.
> 
> Hmmm...  That's something...  How do you know that the delete_child is
> failing?  An if printing that it failed or conjecture based on the
> insertion results?

I added a check of the return value.  It seemed to be returning 12
(ENOMEM), but I'm not sure if that's real or garbage, since I'm having
trouble finding a code path that would return that.

And further data on the CDPD card.. removing it while PPP is still
running just paniced in sioioctl.  However, the delete_child didn't
fail for sio, unlike with ed.  I'm going to reboot and see if I can
successfully remove and reinsert the card if I make sure nothing has
sio open at the time.
-- 
Christopher Masto         Senior Network Monkey      NetMonger Communications
chris@netmonger.net        info@netmonger.net        http://www.netmonger.net

Free yourself, free your machine, free the daemon -- http://www.freebsd.org/


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