now, if you have the ktrace, you can get a stack trace, using the
first command printed in your ktrace:
ktrace 9k8cpu 0xfffffffff011cdee 0xfffffffff0105d58
and then pasting in the numbers.
see ktrace(1) for details.
Quoth [email protected]:
> On Tue, Jan 28, 2025 at 07:49:02AM -0800, Paul Lalonde wrote:
> > Do you have a stack for the assert, from the ktrace?
> >
>
> Yes, and I was wrong: it fails relatively "late" in main.c: at
> mpsinit.
>
> Here is the info (I added a bunch of print() before each function call
> to know where it stumbled upon an incorrect address):
>
> term% nix/test_vmx
>
> NIX
> mmunit...mmuinit: vmstart 0xfffffffff0000000 vmunused 0xfffffffff023d000
> vmunmapped 0xfffffffff0400000 vmend 0xfffffffff4000000
> sys->pd 0x108003 0x108023
> cpu0: mmu l3 pte 0xfffffffff0106ff8 = 107023
> cpu0: mmu l2 pte 0xfffffffff0107ff8 = 108023
> cpu0: mmu l1 pte 0xfffffffff0108c00 = e3
> cpu0: mmu l1 pte 0xfffffffff0108c00 = e3
> ioinit... multibootmemassert... kbdinit... meminit...asm: addr
> 0x0000000004000000 end 0x0000000004000000 type 1 size 0
> cm 0: addr 0x4000000 npage 0
> 0 0 0
> npage 0 upage 0 kpage 16384
> confinit... archinit... mallocinit...base 0xfffffffff023d000 ptr
> 0xfffffffff023d000 nunits 4047617
> acpiinit... umeminit... trapinit... printinit... i8259init... procinit...
> mpsinit...panic: cpu0: map.c:KADDR() passed addr fffffffffffffc00 >=
> fffffe0000000000
> panic: cpu0: map.c:KADDR() passed addr fffffffffffffc00 >= fffffe0000000000
>
> dumpstack
> ktrace 9k8cpu 0xfffffffff011cdee 0xfffffffff0105d58
> estackx 0xfffffffff0106000
> 0xfffffffff0105c70=0xfffffffff0105da8
> 0xfffffffff0105c78=0xfffffffff011cb91
> 0xfffffffff0105c80=0xfffffffff0105c98
> 0xfffffffff0105c98=0xfffffffff013cff7
> 0xfffffffff0105cb0=0xfffffffff0105cd0
> 0xfffffffff0105cc0=0xfffffffff0105ea7
> 0xfffffffff0105cc8=0xfffffffff0105df3
> 0xfffffffff0105ce0=0xfffffffff013d14d
> 0xfffffffff0105d08=0xfffffffff0105d90
> 0xfffffffff0105d28=0xfffffffff011cdee
> 0xfffffffff0105d30=0xfffffffff0105da8
> 0xfffffffff0105d40=0xfffffffff0105d58
> 0xfffffffff0105d48=0xfffffffff0105da8
> 0xfffffffff0105d50=0xfffffffff011cdee
> 0xfffffffff0105d58=0xfffffffff011cb99
> 0xfffffffff0105d68=0xfffffffff013d50f
> 0xfffffffff0105d88=0xfffffffff0105ed0
> 0xfffffffff0105d90=0xfffffffff013cff7
> 0xfffffffff0105d98=0xfffffffff0105db5
> 0xfffffffff0105e08=0xfffffffff013d1b8
> 0xfffffffff0105e10=0xfffffffff0105e00
> 0xfffffffff0105e20=0xfffffffff0105ea3
> 0xfffffffff0105e28=0xfffffffff0105e98
> 0xfffffffff0105e38=0xfffffffff013d1b8
> 0xfffffffff0105e40=0xfffffffff0105e98
> 0xfffffffff0105e60=0xfffffffff013d217
> 0xfffffffff0105e68=0xfffffffff015d9c9
> 0xfffffffff0105e80=0xfffffffff0105fb8
> 0xfffffffff0105e90=0xfffffffff015d5d9
> 0xfffffffff0105ea8=0xfffffffff0105ed0
> 0xfffffffff0105ec0=0xfffffffff0116a3b
> 0xfffffffff0105ef8=0xfffffffff012fe55
> 0xfffffffff0105f08=0xfffffffff01a1afa
> 0xfffffffff0105f10=0x0000000000000004
> 0xfffffffff0105f18=0x0000000000000046
> 0xfffffffff0105f20=0xfffffffff00fffd9
> 0xfffffffff0105f28=0x0000000000000006
> 0xfffffffff0105f30=0xfffffffff015d5d9
> 0xfffffffff0105f38=0xfffffffff0000400
> 0xfffffffff0105f40=0x0000000000000000
> 0xfffffffff0105f48=0xfffffffff012fec9
> 0xfffffffff0105f50=0xfffffffff01a1aff
> 0xfffffffff0105f58=0x0000000000000208
> 0xfffffffff0105f60=0x0000000000000124
> 0xfffffffff0105f68=0xfffffffff01149d0
> 0xfffffffff0105f70=0x0000000000000006
> 0xfffffffff0105f78=0xfffffffff0114ba7
> 0xfffffffff0105f80=0xfffffffff0227510
> 0xfffffffff0105f88=0xffffffff00000000
> 0xfffffffff0105f90=0x0000000000000000
> 0xfffffffff0105f98=0xfffffffff0105fb8
> 0xfffffffff0105fa0=0x0000000bf0116b0d
> 0xfffffffff0105fa8=0xfffffffff011622a
> 0xfffffffff0105fb0=0xffffffff00000400
> 0xfffffffff0105fb8=0xffffffff00000000
> 0xfffffffff0105fc0=0x0000000000000000
> 0xfffffffff0105fc8=0x0000000000000000
> 0xfffffffff0105fd0=0x0000000000000000
> 0xfffffffff0105fd8=0x0000000000000000
> 0xfffffffff0105fe0=0x0000000000000000
> 0xfffffffff0105fe8=0xfffffffff0110204
> 0xfffffffff0105ff0=0x000000002badb002
> 0xfffffffff0105ff8=0x000000000023b000
> cpu0: exiting
>
> >
> >
> > On Tue, Jan 28, 2025 at 6:09?AM <[email protected]> wrote:
> >
> > > After fixing problems leading to compiler warnings---legitimate
> > > warnings, but even the too short binary negated unsigned 32bits values
> > > promoted to 64 bits with leading bits hence 0 as mask were harmless---
> > > now I want to look at the stumbing block.
> > >
> > > For me, under vmx, this is the assert in map.c:17:
> > >
> > > assert(pa < KSEG2);
> > >
> > > that triggers, and it should come from a call from multiboot.
> > >
> > > My first reflex is to start adding printf() instructions to track the
> > > problem, but is there a better way when dealing with the kernel?
> > >
> > > Second question: since, if I'm not mistaken, 9front doesn't use
> > > multiboot, is vmx usable (i.e. agnostic about) with the multiboot stuff?
> > > The embedded boot stuff should handle the thing by itself without load
> > > addresses having to be adjusted because of vmx?
> > > --
> > > Thierry Laronde <tlaronde +AT+ kergis +dot+ com>
> > > http://www.kergis.com/
> > > http://kertex.kergis.com/
> > > Key fingerprint = 0FF7 E906 FBAF FE95 FD89 250D 52B1 AE95 6006 F40C
>
> --
> Thierry Laronde <tlaronde +AT+ kergis +dot+ com>
> http://www.kergis.com/
> http://kertex.kergis.com/
> Key fingerprint = 0FF7 E906 FBAF FE95 FD89 250D 52B1 AE95 6006 F40C
------------------------------------------
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