Date: Tue, 23 Aug 2005 21:44:29 +0200 From: "Frank Behrens" <frank@pinky.sax.de> To: freebsd-current@freebsd.org Subject: Re: panic after kldunload - stale device descriptions Message-ID: <200508231944.j7NJiTT8003432@pinky.frank-behrens.de> In-Reply-To: <200508231743.j7NHhidM001730@pinky.frank-behrens.de>
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To answer myself: Frank Behrens <frank@pinky.sax.de> wrote on 23 Aug 2005 19:43: > I loaded my driver (kldload) and the device was probed and found in > ISA_PNP_PROBE. Then the driver was unloaded (kldunload) and I tried > to read the current device configuration. This gave me a > > Fatal trap 12: page fault while in kernel mode I could not reproduce the error. May be the driver did not release a resource, so it was unloaded, but the device was still present. In that case there is no danger, because we can assume safely all driver will release all allocated resources. Regards, Frank -- Frank Behrens, Osterwieck, Germany PGP-key 0x5B7C47ED on public servers available.
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