Re: earmv6hf 201711030230Z panic after starting ntpd

[Nick Hudson <skrll%netbsd.org@localhost>]

On 11/03/17 22:35, Jun Ebihara wrote:
> with nyftp earmv6hf 20171103230Z on RPI3
>
> https://twitter.com/ebijun/status/926570380268941312
>
> Starting ntpd
> panic: kernel diagnostic assertion "delta > sc->sc_autoinc / 100" failed: file "/usr/src/sys/arch/arm/cortex/gtmr.c", line 322 cpu1: Interrupting too quickly (delta=40) autoinc=192000
> cpu1: Begin traceback...
> 0x80b0fda4: netbsd:db_panic+0xc
> 0x80b0fdbc: netbsd:vpanic+0x1b4
> 0x00b0fdd4: netbsd:__udlvmoddi4
> 0x80b0fe4c: netbsd:gtmr_intr+0x1e4
> 0x80b0fe7c: netbsd:pic_dispatch+0x90
> 0x80b0ff04: netbsd:pic_do_pending_ints+0x2bc
> 0x80b0ff6c: netbsd:irq_entry+0x60
> 0x80boff94: netbsd:idle_loop*0x170
> cpu1: End traceback...

Does this patch help?

Nick

Index: sys/arch/arm/cortex/a9_mpsubr.S
===================================================================
RCS file: /cvsroot/src/sys/arch/arm/cortex/a9_mpsubr.S,v
retrieving revision 1.51
diff -u -p -r1.51 a9_mpsubr.S
--- sys/arch/arm/cortex/a9_mpsubr.S	22 Sep 2017 06:31:02 -0000	1.51
+++ sys/arch/arm/cortex/a9_mpsubr.S	4 Nov 2017 10:10:14 -0000
@@ -357,6 +357,10 @@ cortex_init:
 	teq	r0, #(PSR_HYP32_MODE)	/* Hyp Mode? */
 	bne	1f
 
+	/* Set CNTVOFF to 0 */
+	mov	r0, #0
+	mcrr	p15, 4, r0, r0, c14
+
 	/* Ensure that IRQ, and FIQ will be disabled after eret */
 	mrs	r0, cpsr
 	bic	r0, r0, #(PSR_MODE)