Re: Per-cpu IDT patch

[Frank Kardel <kardel%netbsd.org@localhost>]

Nice progress here:

On bare metal 9.99.69 GENERIC boots sees all ixl, wm and nvme devices 
with all their interrupts initialized - great.

BUT... 9.99.69-XEN3_DOM0 digs out following panic:

[   2.0100519] panic: kernel diagnostic assertion "ci->ci_kfpu_spl == 
-1" failed: file "/src/NetBSD/cur/src/sys/arch/x86/x86/fpu.c", line 389
[   2.0100519] cpu3: Begin traceback...
[   2.0100519] vpanic() at netbsd:vpanic+0x146
[   2.0100519] kern_assert() at netbsd:kern_assert+0x48
[   2.0100519] fpu_kern_enter() at netbsd:fpu_kern_enter+0x190
[   2.0100519] cpu3: Begin traceback...
[   2.0100519] vpanic() at netbsd:vpanic+0x146
[   2.0100519] kern_assert() at netbsd:kern_assert+0x48
[   2.0100519] fpu_kern_enter() at netbsd:fpu_kern_enter+0x190
[   2.0100519] aesni_probe() at netbsd:aesni_probe+0x28
[   2.0100519] aes_selftest() at netbsd:aes_selftest+0x13
[   2.0100519] aes_modcmd() at netbsd:aes_modcmd+0xff
[   2.0100519] module_do_builtin() at netbsd:module_do_builtin+0x173
[   2.0100519] module_do_builtin() at netbsd:module_do_builtin+0x12e
[   2.0100519] module_init_class() at netbsd:module_init_class+0x145
[   2.0100519] main() at netbsd:main+0x472
[   2.0100519] cpu3: End traceback...
[   2.0100519] fatal breakpoint trap in supervisor mode
[   2.0100519] trap type 1 code 0 rip 0xffffffff8023c93d cs 0xe030 
rflags 0x202 cr2 0 ilevel 0x8 rsp 0xffffffff81981af0
[   2.0100519] curlwp 0xffffffff80e5c6c0 pid 0.0 lowest kstack 
0xffffffff8197d2c0
Stopped in pid 0.0 (system) at  netbsd:breakpoint+0x5:  leave

As GENERIC boots and survives the aes self tests this may point more to 
the XEN port.

Frank



On 07/06/20 07:02, s ymgch wrote:
> Hi,
>
> > > Since the idt page is moved into pcpu_entry, it can be removed from
> > > pcpu_area
> > I will change it.
> I removed idt in pcpu_area and updated the patch.
> http://www.netbsd.org/~yamaguchi/pcpu-idt.patch
>
> Best regards,
> -- yamaguchi