Re: Follow up: 40p boot failure with QEMU

[Mark Cave-Ayland <mark.cave-ayland%ilande.co.uk@localhost>]

On 28/08/18 07:51, Mark Cave-Ayland wrote:

> Anyone know what "kernel PGM trap @ 0" means? Is it a NULL pointer
> reference?

Actually I don't think that this is my bug? If I revert to using the
standard QEMU OpenBIOS without my residual data changes then I only get
the "kernel PGM trap @ 0" message when using the latest current build
ISO, and not the official 8.0 release ISO:


NetBSD-8.0-prep.iso:

>> NetBSD/prep BOOT, Revision 1.9 (Tue Jul 17 14:59:51 UTC 2018)
...
...

NetBSD 8.0 (INSTALL) #0: Tue Jul 17 14:59:51 UTC 2018
        mkrepro%mkrepro.NetBSD.org@localhost:/usr/src/sys/arch/prep/compile/INSTALL
Model: Qemu
total memory = 128 MB
avail memory = 119 MB
mainbus0 (root)
cpu0 at mainbus0: 604 (Revision 1.3), ID 0 (primary)
cpu0: HID0 0xc084<ICE,DCE,SGE,BHT>, powersave: 1
cpu0: 0.00 MHz
Couldn't find PNP data for bus 0 devfunc 0x0
pnpbus0 at mainbus0
pci0 at mainbus0 bus 0: indirect configuration space access
pchb0 at pci0 dev 0 function 0
pchb0: vendor 1057 product 4801 (rev. 0x00)
siop0 at pci0 dev 1 function 0: Symbios Logic 53c810 (fast scsi)
siop0: couldn't map interrupt
vendor 1234 product 1111 (VGA display, revision 0x02) at pci0 dev 2
function 0 not configured
pcn0 at pci0 dev 3 function 0: AMD PCnet-PCI Ethernet
pcn0: Am79c970A PCnet-PCI II rev 0, Ethernet address 52:54:00:12:34:56
pcn0: unable to map interrupt
pcib0 at pci0 dev 11 function 0: vendor 8086 product 0484 (rev. 0x03)
isa0 at pcib0
com0 at isa0 port 0x3f8-0x3ff irq 4: ns16550a, working fifo
com0: console
com1 at isa0 port 0x2f8-0x2ff irq 3: ns16550a, working fifo
pckbc0 at isa0 port 0x60-0x64
pckbd0 at pckbc0 (kbd slot)
pckbc0: using irq 1 for kbd slot
wskbd0 at pckbd0 (mux ignored)
vmmask 10000000 schedmask 10000000 highmask 70000000
WARNING: 3 errors while detecting hardware; check system log.
boot device: mainbus0
root on md0a dumps on md0b
root file system type: ffs
kern.module.path=/stand/prep/8.0/modules
WARNING: no TOD clock present
WARNING: using filesystem time
WARNING: CHECK AND RESET THE DATE!
erase ^H, werase ^W, kill ^U, intr ^C, status ^T
Terminal type? [vt100]
Erase is backspace.
(I)nstall, (S)hell or (H)alt ? S
#


NetBSD-8.99.24-prep.iso (build from this morning):

>> NetBSD/prep BOOT, Revision 1.9 (Mon Aug 27 17:47:48 UTC 2018)
...
...

[   1.0000000] Copyright (c) 1996, 1997, 1998, 1999, 2000, 2001, 2002,
2003, 2004, 2005,
[   1.0000000]     2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014,
2015, 2016, 2017,
[   1.0000000]     2018 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 8.99.24 (INSTALL) #0: Mon Aug 27 17:47:48 UTC 2018
[   1.0000000]
mkrepro%mkrepro.NetBSD.org@localhost:/usr/src/sys/arch/prep/compile/INSTALL
[   1.0000000] Model: Qemu
[   1.0000000] total memory = 128 MB
[   1.0000000] avail memory = 119 MB
[   1.0000000] mainbus0 (root)
[   1.0000000] cpu0 at mainbus0: 604 (Revision 1.3), ID 0 (primary)
[   1.0000000] cpu0: HID0 0xc084<ICE,DCE,SGE,BHT>, powersave: 1
[   1.0000000] cpu0: 0.00 MHz
Couldn't find PNP data for bus 0 devfunc 0x0
[   1.0000000] pnpbus0 at mainbus0
[   1.0000000] pci0 at mainbus0 bus 0: indirect configuration space access
[   1.0000000] pchb0 at pci0 dev 0 function 0
[   1.0000000] pchb0: vendor 1057 product 4801 (rev. 0x00)
[   1.0000000] siop0 at pci0 dev 1 function 0: Symbios Logic 53c810
(fast scsi)
[   1.0000000] siop0: couldn't map interrupt
[   1.0000000] vendor 1234 product 1111 (VGA display, revision 0x02) at
pci0 dev 2 function 0 not configured
[   1.0000000] pcn0 at pci0 dev 3 function 0: AMD PCnet-PCI Ethernet
[   1.0000000] pcn0: Am79c970A PCnet-PCI II rev 0, Ethernet address
52:54:00:12:34:56
[   1.0000000] pcn0: unable to map interrupt
[   1.0000000] pcib0 at pci0 dev 11 function 0: vendor 8086 product 0484
(rev. 0x03)
[   1.0000000] isa0 at pcib0
[   1.0000000] com0 at isa0 port 0x3f8-0x3ff irq 4: ns16550a, working fifo
[   1.0000000] com0: console
[   1.0000000] com1 at isa0 port 0x2f8-0x2ff irq 3: ns16550a, working fifo
[   1.0000000] pckbc0 at isa0 port 0x60-0x64
[   1.0000000] pckbd0 at pckbc0 (kbd slot)
[   1.0000000] pckbc0: using irq 1 for kbd slot
[   1.0000000] wskbd0 at pckbd0 (mux ignored)
[   1.0000000] vmmask 10000000 schedmask 10000000 highmask 70000000
[   1.8302857] WARNING: 3 errors while detecting hardware; check system log.
[   1.8601453] boot device: mainbus0
[   1.8901440] root on md0a dumps on md0b
[   2.0002975] root file system type: ffs
[   2.0202987] kern.module.path=/stand/prep/8.99.24/modules
[   2.0302843] WARNING: no TOD clock present
[   2.0302843] WARNING: using filesystem time
[   2.0395248] WARNING: CHECK AND RESET THE DATE!
[   3.5908526] trap: pid 2.1 (sh): kernel PGM trap @ 0 (SRR1=0x89032)
[   3.5908526] panic: trap
[   3.5908526] dumpsys: TBD
[   3.5908526] rebooting...


So looks like this error is related to something that has changed
between the 8.0 release back in July and last night's current build?


ATB,

Mark.