Date: Wed, 18 Jul 2007 02:10:26 +0200 From: Harald Schmalzbauer <h.schmalzbauer@omnisec.de> To: freebsd-current@freebsd.org Subject: Re: kqemu crash (page fault) with -current Message-ID: <200707180210.27097.h.schmalzbauer@omnisec.de> In-Reply-To: <4698E7C4.9080001@FreeBSD.org> References: <200707131834.27131.h.schmalzbauer@omnisec.de> <200707132155.43783.h.schmalzbauer@omnisec.de> <4698E7C4.9080001@FreeBSD.org>
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Am Samstag, 14. Juli 2007 schrieb Attilio Rao: > Harald Schmalzbauer wrote: > > Am Freitag, 13. Juli 2007 schrieb Attilio Rao: > >> Harald Schmalzbauer wrote: > >>> Hello, > >>> > >>> today I tried qemu for the first time and I love it. > >>> Now I'd need some speed and tried kqemu, but it immediately reboots my > >>> machine. > >>> Here is what I could transcribe: > >> > >> Could you please try this patch and see if it helps?: > >> http://people.freebsd.org/~attilio/kqemu.diff > > > > I applied it, rebuilt my kernel and kqemu, but machine crashes immedately > > after running qemu (without disabled kqemu). > > Should I also rebuild qemu itself? I don't think it's needed. > > But CFLAGS+= -DKSE helped! > > I could install various OS, only when I enable -kernel-kqemu most > > installer quit with page fault. > > Hello Harry, > could you please download again the patch and try again? > It seems I missed a bit... Sorry, haven't had any time yet, but now I could do a quick test. Looks good so far, no more panic with a nativ kqemu. > And, please, compile again qemu any time beacause I'm not sure how much > are exposed to userland "struct thread" and "struct proc", for this > problem. I compiled a -current kernel from today (with your new patch), recompiled kqemu and also qemu. But I can't guarantee the kernel module is used. My feeling ist that it's much slower than with my last tests (on that test setup I had always disabled all -current debuging (witness, malloc aj etc)) But it's just a "feeling", no values taken. Lack of time... Thank you very much for your help! best regards, -Harry
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