Re: port-macppc/59014: Shutdown -r now often freezes on macppc b&w G3

[Taylor R Campbell <riastradh%NetBSD.org@localhost>]

> Date: Tue, 21 Jan 2025 11:25:31 -0800
> From: Chris Tucker <capa150%gmail.com@localhost>
> 
> netbsd# rndctl -S seed2   (works)
> netbsd# rndctl -S seed2   (works)
> netbsd# rndctl -S seed2   (works)
> netbsd# rndctl -S seed2   (freezes, and I press ctrl-t)
> [ 139.8510292] load: 0.42  cmd: rndctl 633 [biowait] 0.01u 0.00s 0% 1424k

Interesting.  What kind of disk do you have?

In crash(8) or ddb, can you get the kernel stack trace of the rndctl
process?  In this case, the pid is 633, so it would be:

crash> bt/t 0t633

(Note the `0t' prefix for decimal.)

I bet it's going to come up in sys_fsync_range, which is going to
reveal a problem with fsync_range(FDISKSYNC) on your disk controller
or hard disk.