Date: Thu, 13 Sep 2012 18:25:38 -0400 From: Mark Saad <nonesuch@longcount.org> To: Mark Felder <feld@feld.me> Cc: "freebsd-hackers@FreeBSD.org" <freebsd-hackers@FreeBSD.org> Subject: Re: Please help me diagnose this crazy VMWare/FreeBSD 8.x crash Message-ID: <F19B7985-3286-4026-8106-66F3A3BB07AD@longcount.org> In-Reply-To: <50524C67.3040403@FreeBSD.org> References: <op.wbwe9s0k34t2sn@tech304> <201205311157.42909.jhb@freebsd.org> <19d73256-b7c6-417e-a051-a5faeabf219d@email.android.com> <201209121520.26337.jhb@freebsd.org> <op.wkkwu1sx34t2sn@tech304> <5051F7A0.90901@FreeBSD.org> <op.wkk0qzwj34t2sn@tech304> <20120913162815.GA1219@pix.net> <op.wkla2ksa34t2sn@tech304> <50524C67.3040403@FreeBSD.org>
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--- On Sep 13, 2012, at 5:13 PM, Andriy Gapon <avg@FreeBSD.org> wrote: > on 13/09/2012 22:57 Mark Felder said the following: >> On Thu, 13 Sep 2012 11:28:15 -0500, Kurt Lidl <lidl@pix.net> wrote: >> >>> Isn't this what you want? >>> >>> http://stackframe.blogspot.com/2007/04/debugging-linux-kernels-with.html >>> >>> -Kurt >> >> Interesting -- it looks like that's an option on ESX as well. The only question >> is: what do I do with that? It's going to give me the debugging entire VM, not >> the kernel inside. Without being a VMWare developer I imagine its data will be a >> bit useless :-( > > No, gdb stub is for debugging what is running inside the VM. > E.g. look here for an example of how to do that with qemu: > http://andriygapon.wikispaces.com/QemuSetup > VMWare with gdb stub enabled should not be any different. > > -- > Andriy Gapon > _____________________________ Mark did you try changing the time counter choice sysctl from hpet to Acpi-safe/fast or tsc ? In esx 4.1 an newer using hpet timers causes issues for bsd and linux vms in some cases . The sysctl is kern.timecounter.choice . This sounds like another VMware issues I have seen and read about . See this post http://forums.freebsd.org/archive/index.php/t-32104.html --- Mark saad | mark.saad@longcount.orghelp
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