Re: heartbeat panic: swapping?

[Lloyd Parkes <lloyd%must-have-coffee.gen.nz@localhost>]

On 17/02/2026 20:34, Thomas Klausner wrote:
> Hi!
>
> I woke up to
>
> savecore: reboot after panic: [ 312649.0082489] panic: cpu0: softints stuck for 16 seconds
>
> (gdb) target kvm netbsd.27.core
> 0xffffffff80239eca in cpu_reboot (howto=howto@entry=260, bootstr=bootstr@entry=0x0) at /usr/src/sys/arch/amd64/amd64/machdep.c:709
> 709			dumpsys();
> (gdb) bt
> #0  0xffffffff80239eca in cpu_reboot (howto=howto@entry=260, bootstr=bootstr@entry=0x0) at /usr/src/sys/arch/amd64/amd64/machdep.c:709
> #1  0xffffffff80e2bfbf in kern_reboot (howto=howto@entry=260, bootstr=bootstr@entry=0x0) at /usr/src/sys/kern/kern_reboot.c:91
> #2  0xffffffff80e77295 in vpanic (fmt=fmt@entry=0xffffffff816f1d30 "%s: softints stuck for %u seconds", ap=ap@entry=0xffffa72469e83bd0) at /usr/src/sys/kern/subr_prf.c:288
> #3  0xffffffff80e7736a in panic (fmt=fmt@entry=0xffffffff816f1d30 "%s: softints stuck for %u seconds") at /usr/src/sys/kern/subr_prf.c:209
> #4  0xffffffff80e0e03c in heartbeat () at /usr/src/sys/kern/kern_heartbeat.c:702
> #5  0xffffffff80df34ad in hardclock (frame=0xffffa72469e83ce8) at /usr/src/sys/kern/kern_clock.c:342
> #6  0xffffffff8021075e in Xresume_lapic_ltimer ()

I've seen this before, but not since I started running a kernel from 
2026-01-22 (NZDT).

I don't know how hard I've pushed that system since then, but I had 
three crashes in two days before I built that kernel.

Ngā mihi,
Lloyd