Re: panic: trap when running qemu

[Thomas Klausner <wiz%NetBSD.org@localhost>]

On Thu, Feb 20, 2025 at 06:49:43AM +0100, Martin Husemann wrote:
> On Wed, Feb 19, 2025 at 07:24:41PM +0100, Thomas Klausner wrote:
> > #6  0xffffffff805af065 in pmap_unmap_ptes (pmap=<optimized out>, pmap2=0x0) at /usr/src/sys/arch/x86/x86/pmap.c:873
> 
> That is very strange, do you have crash dumps?

Yes, two of them, let me know if you want to look at them in more detail.

>         /* If not our own pmap, mark whatever's on the CPU now as lazy. */
>         KASSERT(ci->ci_tlbstate == TLBSTATE_VALID);
> >>      mypmap = vm_map_pmap(&l->l_proc->p_vmspace->vm_map);
>         if (ci->ci_pmap == vm_map_pmap(&l->l_proc->p_vmspace->vm_map)) {
>                            ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> 
> shouldn't the mypmap be used the line below instead of the second vm_map_pmap
> call?
> 
> > Any ideas? Time for a bug report?
> 
> Deinitively worth a bug report.

I've filed "kern/59089: panic when running qemu + nvmm".

Cheers,
 Thomas