Re: New pmap status update

[Jason Thorpe <thorpej%me.com@localhost>]

> On Dec 15, 2025, at 7:00 AM, Izumi Tsutsui <tsutsui%ceres.dti.ne.jp@localhost> wrote:
> 
> Also tried on HP319C with the patch (traditional pmap).
> No panic, but stalls before init(8) starts:

Yes, late last night (sigh, flight delays!) I found a bug in the patch:

+#define	__cslu_idx(v)			\
+	(int)((vaddr_t)(v) - ((vaddr_t)(v) & ~3U))

Should be:

+#define __cslu_idx(v) \
+    (int)((vaddr_t)(v) - ((vaddr_t)(v) & 3U))

Here’s a new version (that also restricts it to just _KERNEL for now)

    https://www.netbsd.org/~thorpej/m68k-simple-lock-rmc-fix-2.txt

> 
> ---
>>> NetBSD/hp300 Primary Boot, Revision 1.22 (Sat May 31 17:00:41 UTC 2025) (from NetBSD 10.99.14)
>>> HP 9000/318/319/330 SPU
>>> Enter "reset" to reset system.
> Boot: [[[le0a:]netbsd][-a][-c][-d][-s][-v][-q]] :- le0a:netbsd.small020 -s
> WARNING: bad date in battery clock
> boot: client IP address: 192.168.20.74 
> root addr=192.168.20.1 path=/r/export/NetBSD/hp300/root
> 2292116+99012 [211280+198022]=0x2abf50
> Start @ 0xff803000 [1=0xffa49c58-0x2abf50]...
> Entry point: 0xff803000
> [   1.0000000] bootinfo found at 0xff802000
> [   1.0000000] Copyright (c) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003,
> [   1.0000000]     2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013,
> [   1.0000000]     2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023,
> [   1.0000000]     2024, 2025
> [   1.0000000]     The NetBSD Foundation, Inc.  All rights reserved.
> [   1.0000000] Copyright (c) 1982, 1986, 1989, 1991, 1993
> [   1.0000000]     The Regents of the University of California.  All rights reserved.
> 
> [   1.0000000] NetBSD 11.99.4 (SMALL020) #1: Mon Dec 15 23:11:00 JST 2025
> [   1.0000000]  tsutsui@mirage:/s/tsutsui/netbsd/src/sys/arch/hp300/compile/SMALL020
> [   1.0000000] HP 9000/318/319/330 (16.67MHz MC68020 CPU, MC68851 MMU, 16.67MHz MC68881 FPU)
> [   1.0000000] total memory = 8180 KB
> [   1.0000000] avail memory = 4552 KB
> [   1.0000000] mainbus0 (root)
> [   1.0000000] intio0 at mainbus0
> [   1.0000000] rtc0 at intio0 addr 0x420000
> [   1.0000000] hil0 at intio0 addr 0x428000 ipl 1
> [   1.0000000] nhpib1 at intio0 addr 0x478000 ipl 3: internal HP-IB
> [   1.0000000] hpibbus1 at nhpib1
> [   1.0000000] dma0 at intio0 addr 0x500000 ipl 1: 98620C, 2 channels, 32-bit DMA
> [   1.0000000] topcat0 at intio0 addr 0x560000: 1024x768x6 HP98549 catseye frame buffer
> [   1.0000000] wsdisplay0 at topcat0 kbdmux 1
> [   1.0000000] dio0 at mainbus0
> [   1.0000000] com0 at dio0 scode 9 ipl 5: ns8250 or ns16450, no fifo
> [   1.0000000] com0: console
> [   1.0000000] fhpib0 at dio0 scode 14 ipl 4: 98625A/98625B HP-IB
> [   1.0000000] hpibbus2 at fhpib0
> [   1.0000000] le0 at dio0 scode 21 ipl 5: address 08:00:09:02:6a:99
> [   1.0000000] le0: 8 receive buffers, 2 transmit buffers
> [   1.0000000] WARNING: system needs entropy for security; see entropy(7)
> [   2.1739310] hil0: no devices
> [   5.7425990] boot device: le0
> [   5.7625870] root on le0
> [   5.7875790] nfs_boot: trying DHCP/BOOTP
> [   8.8710910] nfs_boot: DHCP next-server: 192.168.20.1
> [   8.8866790] nfs_boot: my_domain=ceres.dti.ne.jp
> [   8.9010870] nfs_boot: my_addr=192.168.20.74
> [   8.9209790] nfs_boot: my_mask=255.255.255.0
> [   8.9409710] nfs_boot: gateway=192.168.20.1
> [  15.1884790] root on mirage:/r/export/NetBSD/hp300/root
> [  15.2043710] root file system type: nfs
> [  15.2096830] kern.module.path=/stand/hp300/11.99.4/modules
> [  15.2684630] WARNING: preposterous TOD clock time
> [  15.2830150] WARNING: using filesystem time
> [  15.2923830] WARNING: CHECK AND RESET THE DATE!
> [  23.1255950] entropy: best effort
> ---
> 
> I can enter ddb by break, and backtrace shows:
> ---
> Stopped in pid 1.1 (init) at    netbsd:cpu_Debugger+0x6:        unlk    a6
> db> bt
> cpu_Debugger(5,0,a,1,0) + 6
> comintr(1322340) + 36e
> m68k_intr_autovec(0,2004,1349100,13a3f98,20040011) + 56
> intrstub_autovec(?)
> lwp_unlock(1317280) + a
> sigpost(?)
> sched_tick(1349100,0,103,a) + 146
> kpsignal2(137a020,3c90ec8,80,1c5e8,3c8f000) + 2c0
> trapsignal(1349100,3c90ec8) + 24a
> trap(3c90f60,0,1c1,10018f14) + 438
> faultstkadj() + 4
> db> 
> 
> 
> ---
> Izumi Tsutsui

-- thorpej