port-macppc/49775: PGM trap when accessing wd0a

[martin%NetBSD.org@localhost]

>Number:         49775
>Category:       port-macppc
>Synopsis:       PGM trap when accessing wd0a
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    port-macppc-maintainer
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Sun Mar 22 19:05:00 +0000 2015
>Originator:     Martin Husemann
>Release:        NetBSD 7.99.7
>Organization:
The NetBSD Foundation, Inc.
>Environment:
System: NetBSD 7.99.7 (GETHSEMANE) #5: Sun Mar 22 12:30:03 CET 2015        martin%night-owl.duskware.de@localhost:/usr/src/sys/arch/macppc/compile/GETHSEMANE
Architecture: powerpc
Machine: macppc
>Description:

My macppc crashed midway during the last update/sets extraction, so I netbooted
and tried to chec the file system, but:

# fsck -f /dev/rwd0e
fsck: Cannot open `/etc/fstab': No such file or directory
fsck: Cannot open `/etc/fstab': No such file or directory
fsck: Cannot open `/etc/fstab': No such file or directory
** /dev/rwd0e
** File system is journaled; replaying journal
** Last Mounted on /
** Phase 1 - Check Blocks and Sizes
trap: pid 0.16 (system): kernel PGM trap @ 0x9e8 (SRR1=0x81000)
trap: pid 0.16 (system): kernel PGM trap @ 0x348148 (SRR1=0x81030)
trap: pid 0.16 (system): kernel PGM trap @ 0x348148 (SRR1=0x81030)
trap: pid 0.16 (system): kernel PGM trap @ 0x348148 (SRR1=0x81030)
...

Extract from dmesg:

NetBSD 7.99.7 (GETHSEMANE) #5: Sun Mar 22 12:30:03 CET 2015
        martin%night-owl.duskware.de@localhost:/usr/src/sys/arch/macppc/compile/GETHSEMANE
total memory = 1024 MB
oea_startup: failed to allocate DEAD ZONE: error=12
avail memory = 982 MB
found openpic PIC at 80040000
OpenPIC Version 1.2: Supports 4 CPUs and 64 interrupt sources.
bootpath: /pci@f4000000/ethernet:/netbsd.gz
mainbus0 (root)
cpu0 at mainbus0: 7450 (Revision 2.1), ID 0 (primary)
cpu0: HID0 0x8450c0bc<EMCP,TBEN,NAP,DPM,ICE,DCE,SGE,BTIC,LRSTK,FOLD,BHT>, powersave: 1
cpu0: 800.00 MHz, 256KB L2 cache no parity parity enabled, 2MB no-parity L3 cache (DDR SRAM) at 4:1 ratio
cpu1 at mainbus0: 7450 (Revision 2.1), ID 1
cpu1: HID0 0x8450c0bc<EMCP,TBEN,NAP,DPM,ICE,DCE,SGE,BTIC,LRSTK,FOLD,BHT>, powersave: 1
cpu1: 800.00 MHz, 256KB L2 cache no parity parity enabled, 2MB no-parity L3 cache (DDR SRAM) at 4:1 ratio
[..]
uninorth1 at mainbus0
pci1 at uninorth1 bus 0
pchb1 at pci1 dev 11 function 0
obio0 at pci1 dev 23 function 0: addr 0x80000000
[..]
wdc0 at obio0 offset 0x1f000 irq 19, level triggered: DMA transfer
atabus0 at wdc0 channel 0
wdc1 at obio0 offset 0x20000 irq 20, level triggered: DMA transfer
atabus1 at wdc1 channel 0
wdc2 at obio0 offset 0x21000 irq 21, level triggered: DMA transfer
atabus2 at wdc2 channel 0
[..]
wd0 at atabus0 drive 0
wd0: <WDC WD2000JB-00FUA0>
wd0: 186 GB, 387621 cyl, 16 head, 63 sec, 512 bytes/sect x 390721968 sectors
atapibus0 at atabus1: 2 targets
cd0 at atapibus0 drive 0: <HL-DT-STDVD-ROM GDR8161B, , 0100> cdrom removable


>How-To-Repeat:
s/a

>Fix:
n/a