Re: hang when updating to 10.99.14

[Patrick Welche <prlw1%welche.eu@localhost>]

On Thu, Apr 17, 2025 at 09:46:02AM +0200, Thomas Klausner wrote:
> I just tried updating from 10.99.12 from March 24 to 10.99.14 from
> today. After a reboot with the new kernel, while installing the
> userland (basically, two pax(1) and then postinstall fix) I did some
> emacs editing, when the machine hung.
> 
> The ssh connection died. The console didn't react to RETURN nor to
> CTRL-ALT-ESC.
> 
> I rebooted and had to salvage the system because it had an unclean
> shutdown during the installation of the system.
> 
> So sadly I have no details to report. Did anyone else have problems
> with upgrading to 10.99.14?

I have been running 10.99.14 since Thursday, and just now, while
untarring 600MB of gcc 16, I got

(gdb) print panicstr
$2 = 0xffffffff80f06020 <scratchstr> "cpu0: softints stuck for 16 seconds"

which would count as a hang and the system rebooting for me, so not quite
the same, but that hasn't happened before...

(gdb) thread apply all bt

Thread 2.1 (<kvm>):
#0  0xffffffff80233945 in cpu_reboot (howto=howto@entry=260, bootstr=bootstr@entry=0x0) at ../../../../arch/amd64/amd64/machdep.c:708
#1  0xffffffff808152e1 in kern_reboot (howto=howto@entry=260, bootstr=bootstr@entry=0x0) at ../../../../kern/kern_reboot.c:91
#2  0xffffffff8084a0c5 in vpanic (fmt=fmt@entry=0xffffffff80c3cab0 "%s: softints stuck for %u seconds", ap=ap@entry=0xffffc404a4608cf0) at ../../../../kern/subr_prf.c:288
#3  0xffffffff8084a19a in panic (fmt=fmt@entry=0xffffffff80c3cab0 "%s: softints stuck for %u seconds") at ../../../../kern/subr_prf.c:209
#4  0xffffffff807ff07e in heartbeat () at ../../../../kern/kern_heartbeat.c:701
#5  0xffffffff807ed55e in hardclock (frame=0xffffc404a4608de8) at ../../../../kern/kern_clock.c:342
#6  0xffffffff8020bb3e in Xresume_lapic_ltimer ()
#7  0x0000000068052f30 in ?? ()
Backtrace stopped: previous frame inner to this frame (corrupt stack?)

doesn't discloase much...


Cheers,

Patrick