Date: Tue, 19 Aug 2008 17:57:55 +0200 From: vi0 <vi0@semihalf.com> To: Matt Sealey <matt@genesi-usa.com>, ppc@freebsd.org, Rafal Jaworowski <raj@semihalf.com> Subject: Efika OF problems Message-ID: <48AAED83.1090403@semihalf.com> In-Reply-To: <4827A9A0.3030102@genesi-usa.com> References: <4810C7A2.40206@semihalf.com> <4811C774.9000407@genesi-usa.com> <4826CEA9.7020705@semihalf.com> <4827A9A0.3030102@genesi-usa.com>
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Hi there! I have a question about openfirmware in Efika. I have big problems with calls to OF. The most recent problem is with the instruction that move a new value to sprg0: mtspr r8, sprg0 and in r8 at the moment is zero. The problem is that sometimes it works and sometimes does not. I can't actually understand why does it happend. One function sometimes works perfectly well and just after that it crashes. All around the OF, in the very same place. Could you tell me, does the Efika's openfirmware use sprg0 for something special? Or maybe you have some advice concerning OF in Efika? Other thing I were wondering is, how to make a memdump. After the crash efika is dead, nothing works (deadend). But the OF supports the mem dump: ldump. Is it possible to get the content of the memory after the deadend? For example by softreset? Is there a control sequence I could send via serial console to efika to do it? (or is there other way to get the crashdump?) Best regards, Przemekhome | help
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