Date: Tue, 16 Jul 2002 22:21:51 -0400 (EDT) From: John Baldwin <jhb@FreeBSD.org> To: Bruce Evans <bde@zeta.org.au> Cc: current@FreeBSD.ORG, Dikshie <dikshie@ppk.itb.ac.id>, W Gerald Hicks <gehicks@gehicks.dyndns.org> Subject: Re: /usr/src/dev/md error (?) Message-ID: <XFMail.20020716222151.jhb@FreeBSD.org> In-Reply-To: <20020717115641.T3327-100000@gamplex.bde.org>
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On 17-Jul-2002 Bruce Evans wrote:
> On Tue, 16 Jul 2002, W Gerald Hicks wrote:
>
>> Following patch should silence it.
>> ...
>> Index: src/sys/dev/md/md.c
>> ===================================================================
>> RCS file: /home/ncvs/src/sys/dev/md/md.c,v
>> retrieving revision 1.66
>> diff -u -r1.66 md.c
>> --- src/sys/dev/md/md.c 24 Jun 2002 12:07:02 -0000 1.66
>> +++ src/sys/dev/md/md.c 16 Jul 2002 21:32:44 -0000
>> @@ -606,6 +606,7 @@
>> error = mdstart_swap(sc, bp);
>> break;
>> default:
>> + error = -1;
>> panic("Impossible md(type)");
>> break;
>> }
>
> This change and the break after the panic() are bogus. panic() "never"
> returns, and the compiler knows this. Unfortunately, the RESTARTABLE_PANICS
> option subverts the semantics of panic(), so panic() sometimes returns.
> This breaks compilation of md.c and 28 other files in NOTES. The fix
> shouldn't be to disturb the usual flow of control in those 29 files.
We should probably turn RESTARTABLE_PANICS off in NOTES.
> Bruce
--
John Baldwin <jhb@FreeBSD.org> <>< http://www.FreeBSD.org/~jhb/
"Power Users Use the Power to Serve!" - http://www.FreeBSD.org/
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