>Synopsis: panic on boot during probe of wdc0 at isa0
>Category: kernel
>Environment:
System : OpenBSD 6.2
Details : OpenBSD 6.2-beta (GENERIC) #132: Fri Sep 15 22:31:00
MDT 2017
dera...@i386.openbsd.org:/usr/src/sys/arch/i386/compile/GENERIC
Architecture: OpenBSD.i386
Machine : i386
>Description:
It seems that this commit broke wdc(4), or at least wdc0 at isa0:
========
CVSROOT: /cvs
Module name: src
Changes by: mi...@cvs.openbsd.org 2017/07/12 07:40:59
Modified files:
sys/dev/ic : wdc.c wdcvar.h
sys/dev/pci : pciide.c
Log message:
Introduce two quirks to prevent attaching ATA and ATAPI devices
[...]
========
The kernel panics when trying to probe wdc:
>> OpenBSD/i386 BOOT 3.31
boot> hd0a:/bsd.62
cannot open hd0a:/etc/random.seed: No such file or directory
booting hd0a:/bsd.62: 8157496+2278404+161312+0+1093632
[672972+82+489424+501185]=0xcbe478
entry point at 0x2000d4
[ using 1664120 bytes of bsd ELF symbol table ]
Copyright (c) 1982, 1986, 1989, 1991, 1993
The Regents of the University of California. All rights reserved.
Copyright (c) 1995-2017 OpenBSD. All rights reserved.
https://www.OpenBSD.org
OpenBSD 6.2-beta (GENERIC) #132: Fri Sep 15 22:31:00 MDT 2017
dera...@i386.openbsd.org:/usr/src/sys/arch/i386/compile/GENERIC
cpu0: Intel 486DX (486-class)
real mem = 16138240 (15MB)
avail mem = 1863680 (1MB)
warning: no entropy supplied by boot loader
mpath0 at root
scsibus0 at mpath0: 256 targets
mainbus0 at root
bios0 at mainbus0: date 03/31/93
pcibios at bios0 function 0x1a not configured
bios0: ROM list: 0xc8000/0x1000 0xc9000/0x1000 0xca000/0x2000
cpu0 at mainbus0: (uniprocessor)
isa0 at mainbus0
isadma0 at isa0
fdc0 at isa0 port 0x3f0/6 irq 6 drq 2
com0 at isa0 port 0x3f8/8 irq 4: ns16450, no fifo
com0: console
pckbc0 at isa0 port 0x60/5 irq 1 irq 12
pckbd0 at pckbc0 (kbd slot)
wskbd0 at pckbd0: console keyboard
pms0 at pckbc0 (aux slot)
wsmouse0 at pms0 mux 0
vga0 at isa0 port 0x3b0/48 iomem 0xa0000/131072
wsdisplay0 at vga0 mux 1: console (80x25, vt100 emulation), using wskbd0
wsdisplay0: screen 1-5 added (80x25, vt100 emulation)
uvm_fault(0xd0d06da4, 0x0, 0, 1) -> e
kernel: page fault trap, code=0
Stopped at wdcprobe+0x110: movzwl 0x40(%eax),%eax
ddb> trace
wdcprobe(d0ec1348) at wdcprobe+0x110
wdc_isa_probe(d0fd2000,d0fd3800,d0ec1b18) at wdc_isa_probe+0x95
isascan(d0fd2000,d0fd3800) at isascan+0x266
config_scan(d0855a10,d0fd2000) at config_scan+0x86
isaattach(d0fd10c0,d0fd2000,d0ec1eb8) at isaattach+0xcc
config_attach(d0fd10c0,d0c11554,d0ec1eb8,d034af50) at config_attach+0x184
config_found_sm(d0fd10c0,d0ec1eb8,d034af50,0) at config_found_sm+0x29
mainbus_attach(0,d0fd10c0,0) at mainbus_attach+0x339
config_attach(0,d0c0faf4,0,0) at config_attach+0x184
config_rootfound(d0a13a74,0) at config_rootfound+0xc0
cpu_configure(0,ebf000,ece000,0,d02004ce) at cpu_configure+0x29
main(0,0,0,0,0) at main+0x478
ddb> ps
PID TID PPID UID S FLAGS WAIT COMMAND
* 0 0 -1 0 7 0x10200 swapper
ddb>
========
>How-To-Repeat:
Boot latest snapshot on hardware with an ISA-bus IDE controller, or
with pciide disabled in UKC
>Fix:
Workaround: reverting sys/dev/ic/wdc.c to r1.131 restores operation:
boot> hd0a:/bsd62.rd.test
cannot open hd0a:/etc/random.seed: No such file or directory
booting hd0a:/bsd62.rd.test: 3271740+1344512+3346032+0+454656
[370634+82+283040+276713]=0x8eb470
entry point at 0x2000d4
Copyright (c) 1982, 1986, 1989, 1991, 1993
The Regents of the University of California. All rights reserved.
Copyright (c) 1995-2017 OpenBSD. All rights reserved.
https://www.OpenBSD.org
OpenBSD 6.2-beta (RAMDISK_CD) #2: Tue Sep 19 17:14:33 CDT 2017
and...@obsd-i386.vpr.int:/usr/src/sys/arch/i386/compile/RAMDISK_CD
cpu0: Intel 486DX (486-class)
real mem = 16183296 (15MB)
avail mem = 6762496 (6MB)
mainbus0 at root
bios0 at mainbus0: date 03/31/93
pcibios at bios0 function 0x1a not configured
bios0: ROM list: 0xc8000/0x1000 0xc9000/0x1000 0xca000/0x2000
cpu0 at mainbus0: (uniprocessor)
isa0 at mainbus0
isadma0 at isa0
fdc0 at isa0 port 0x3f0/6 irq 6 drq 2
com0 at isa0 port 0x3f8/8 irq 4: ns16450, no fifo
com0: console
pckbc0 at isa0 port 0x60/5 irq 1 irq 12
pckbd0 at pckbc0 (kbd slot)
wskbd0 at pckbd0: console keyboard
vga0 at isa0 port 0x3b0/48 iomem 0xa0000/131072
wsdisplay0 at vga0 mux 1: console (80x25, vt100 emulation), using wskbd0
wdc0 at isa0 port 0x1f0/8 irq 14
wd0 at wdc0 channel 0 drive 0: <IBM-DARA-206000>
wd0: 16-sector PIO, LBA, 5729MB, 11733120 sectors
wd0(wdc0:0:0): using BIOS timings
npx0 at isa0 port 0xf0/16 irq 13
pcic0 at isa0 port 0x3e0/2 iomem 0xd0000/16384
pcic0 controller 0: <Intel 82365SL rev 1> has sockets A and B
pcic0 controller 1: <Intel 82365SL rev 1> has sockets A and B
pcmcia0 at pcic0 controller 0 socket 0
pcmcia1 at pcic0 controller 0 socket 1
pcmcia2 at pcic0 controller 1 socket 0
ep1 at pcmcia2 function 0 "3Com, 3C574-TX Fast EtherLink PC Card, A" port
0x340/32, irq 3: address 00:10:4b:5f:20:c0
tqphy0 at ep1 phy 0: 78Q2120 10/100 PHY, rev. 3
pcmcia3 at pcic0 controller 1 socket 1
ep2 at pcmcia3 function 0 "3Com, 3C574-TX Fast EtherLink PC Card, A" port
0x300/32, irq 9: address 00:60:08:93:80:48
tqphy1 at ep2 phy 0: 78Q2120 10/100 PHY, rev. 3
pcic0: irq 5, polling enabled
softraid0 at root
scsibus0 at softraid0: 256 targets
root on rd0a swap on rd0b dump on rd0b
fd0 at fdc0 drive 0: 1.44MB 80 cyl, 2 head, 18 sec
erase ^?, werase ^W, kill ^U, intr ^C, status ^T
Welcome to the OpenBSD/i386 6.2 installation program.
(I)nstall, (U)pgrade, (A)utoinstall or (S)hell?
========
You don't need ISA hardware to reproduce this -- if you have onboard
pciide(4), disabling it with UKC will let wdc(4) take over:
>> OpenBSD/i386 CDBOOT 3.28
boot> boot /6.2/i386/bsd -c
cannot open cd0a:/etc/random.seed: No such file or directory
booting cd0a:/6.2/i386/bsd: 8228740+2282500+164096+0+1093632
[675840+82+491200+502901]=0xcd2d50
entry point at 0x2000d4
[ using 1670480 bytes of bsd ELF symbol table ]
Copyright (c) 1982, 1986, 1989, 1991, 1993
The Regents of the University of California. All rights reserved.
Copyright (c) 1995-2017 OpenBSD. All rights reserved.
https://www.OpenBSD.org
OpenBSD 6.2-beta (GENERIC.MP) #138: Sat Sep 16 23:41:33 MDT 2017
dera...@i386.openbsd.org:/usr/src/sys/arch/i386/compile/GENERIC.MP
cpu0: VIA C3 Ezra ("CentaurHauls" 686-class) 1 GHz
cpu0: FPU,DE,TSC,MSR,MTRR,PGE,MMX,3DNOW
real mem = 502747136 (479MB)
avail mem = 479006720 (456MB)
User Kernel Config
UKC> disable pciide
110 pciide* disabled
111 pciide* disabled
UKC> quit
Continuing...
mpath0 at root
scsibus0 at mpath0: 256 targets
mainbus0 at root
bios0 at mainbus0: date 05/19/04, BIOS32 rev. 0 @ 0xfb210, SMBIOS rev. 2.2
@ 0xf0800 (26 entries)
bios0: vendor Award Software International, Inc. version "6.00 PG" date
05/19/2004
bios0: VIA Technologies, Inc. VT8623-8235
acpi0 at bios0: rev 0
acpi0: sleep states S0 S1 S3 S4 S5
acpi0: tables DSDT FACP
acpi0: wakeup devices PCI0(S5) USB0(S5) USB1(S5) USB2(S5) USB3(S3) USB4(S3)
USB5(S3) USB6(S3) LAN0(S5) AC97(S5) MC97(S5) UAR1(S5)
acpitimer0 at acpi0: 3579545 Hz, 24 bits
acpiprt0 at acpi0: bus 0 (PCI0)
acpicpu0 at acpi0: !C3(@900 io@0x415), !C2(@90 io@0x414), C1(@1 halt!)
acpibtn0 at acpi0: PWRB
"PNP0700" at acpi0 not configured
"PNP0400" at acpi0 not configured
bios0: ROM list: 0xc0000/0xec00 0xd0000/0x8000!
cpu0 at mainbus0: (uniprocessor)
mtrr: Pentium Pro MTRR support, 8 var ranges, 88 fixed ranges
pci0 at mainbus0 bus 0: configuration mode 1 (bios)
pchb0 at pci0 dev 0 function 0 "VIA VT8623 PCI" rev 0x00
viaagp0 at pchb0: v2
agp0 at viaagp0: aperture at 0xd0000000, size 0x10000000
ppb0 at pci0 dev 1 function 0 "VIA VT8633 AGP" rev 0x00
pci1 at ppb0 bus 1
vga1 at pci1 dev 0 function 0 "VIA CLE266" rev 0x03
wsdisplay0 at vga1 mux 1: console (80x25, vt100 emulation)
wsdisplay0: screen 1-5 added (80x25, vt100 emulation)
"VIA VT6306 FireWire" rev 0x80 at pci0 dev 13 function 0 not configured
uhci0 at pci0 dev 16 function 0 "VIA VT83C572 USB" rev 0x80: irq 11
uhci1 at pci0 dev 16 function 1 "VIA VT83C572 USB" rev 0x80: irq 12
uhci2 at pci0 dev 16 function 2 "VIA VT83C572 USB" rev 0x80: irq 10
ehci0 at pci0 dev 16 function 3 "VIA VT6202 USB" rev 0x82: irq 5
usb0 at ehci0: USB revision 2.0
uhub0 at usb0 configuration 1 interface 0 "VIA EHCI root hub" rev 2.00/1.00
addr 1
viapm0 at pci0 dev 17 function 0 "VIA VT8235 ISA" rev 0x00: SMI
iic0 at viapm0
spdmem0 at iic0 addr 0x50: 512MB DDR SDRAM non-parity PC2100CL2.5
"VIA VT82C571 IDE" rev 0x06 at pci0 dev 17 function 1 not configured
auvia0 at pci0 dev 17 function 5 "VIA VT8233 AC97" rev 0x50: irq 10
ac97: codec id 0x49434552 (ICEnsemble VIA VT1616i)
ac97: codec features headphone, 18 bit DAC, 18 bit ADC, KS Waves 3D
audio0 at auvia0
vr0 at pci0 dev 18 function 0 "VIA RhineII-2" rev 0x74: irq 11, address
00:40:63:c5:ee:69
ukphy0 at vr0 phy 1: Generic IEEE 802.3u media interface, rev. 5: OUI
0x004063, model 0x0032
usb1 at uhci0: USB revision 1.0
uhub1 at usb1 configuration 1 interface 0 "VIA UHCI root hub" rev 1.00/1.00
addr 1
usb2 at uhci1: USB revision 1.0
uhub2 at usb2 configuration 1 interface 0 "VIA UHCI root hub" rev 1.00/1.00
addr 1
usb3 at uhci2: USB revision 1.0
uhub3 at usb3 configuration 1 interface 0 "VIA UHCI root hub" rev 1.00/1.00
addr 1
isa0 at mainbus0
isadma0 at isa0
fdc0 at isa0 port 0x3f0/6 irq 6 drq 2
com0 at isa0 port 0x3f8/8 irq 4: ns16550a, 16 byte fifo
com0: console
com1 at isa0 port 0x2f8/8 irq 3: ns16550a, 16 byte fifo
pckbc0 at isa0 port 0x60/5 irq 1 irq 12
pckbc0: unable to establish interrupt for irq 12
pckbd0 at pckbc0 (kbd slot)
wskbd0 at pckbd0: console keyboard, using wsdisplay0
uvm_fault(0xd0c7e2a4, 0x0, 0, 1) -> e
kernel: page fault trap, code=0
Stopped at wdcprobe+0x110: movzwl 0x40(%eax),%eax
ddb{0}> trace
wdcprobe(d0ed5348) at wdcprobe+0x110
wdc_isa_probe(d220e100,d2222000,d0ed5b18) at wdc_isa_probe+0x95
isascan(d220e100,d2222000) at isascan+0x266
config_scan(d05a64c0,d220e100) at config_scan+0x86
isaattach(d21c0100,d220e100,d0ed5eb8) at isaattach+0xcc
config_attach(d21c0100,d0c0ef1c,d0ed5eb8,d09af960) at config_attach+0x194
config_found_sm(d21c0100,d0ed5eb8,d09af960,0) at config_found_sm+0x29
mainbus_attach(0,d21c0100,0) at mainbus_attach+0x33e
config_attach(0,d0c0d4bc,0,0) at config_attach+0x194
config_rootfound(d0b39437,0) at config_rootfound+0xc0
cpu_configure(aa8aabc4,ed3000,ee2000,0,d02004ce) at cpu_configure+0x51
main(0,0,0,0,0) at main+0x4a7
ddb{0}>
========
Also reproducible on amd64, if you both enable wdc and disable pciide:
========
boot> hd0a:/bsd.62.amd64 -c
booting hd0a:/bsd.62.amd64: 8450428+2544648+243008+0+671744
[658996+82+699360+482912]=0xd1fb90
entry point at 0x1000158
[ using 1842064 bytes of bsd ELF symbol table ]
Copyright (c) 1982, 1986, 1989, 1991, 1993
The Regents of the University of California. All rights reserved.
Copyright (c) 1995-2017 OpenBSD. All rights reserved.
https://www.OpenBSD.org
OpenBSD 6.2-beta (GENERIC) #103: Mon Sep 18 23:27:20 MDT 2017
dera...@amd64.openbsd.org:/usr/src/sys/arch/amd64/compile/GENERIC
real mem = 1056899072 (1007MB)
avail mem = 1017982976 (970MB)
User Kernel Config
UKC> enable wdc
234 wdc* already enabled
252 wdc0 enabled
253 wdc1 enabled
UKC> disable pciide
109 pciide* disabled
110 pciide* disabled
UKC> quit
Continuing...
mpath0 at root
scsibus0 at mpath0: 256 targets
mainbus0 at root
bios0 at mainbus0: SMBIOS rev. 2.5 @ 0xe1000 (10 entries)
bios0: vendor innotek GmbH version "VirtualBox" date 12/01/2006
bios0: innotek GmbH VirtualBox
acpi0 at bios0: rev 2
acpi0: sleep states S0 S5
acpi0: tables DSDT FACP APIC HPET MCFG SSDT
acpi0: wakeup devices
acpitimer0 at acpi0: 3579545 Hz, 32 bits
acpimadt0 at acpi0 addr 0xfee00000: PC-AT compat
cpu0 at mainbus0: apid 0 (boot processor)
cpu0: Intel(R) Core(TM) i7-6700K CPU @ 4.00GHz, 4008.52 MHz
cpu0:
FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,MMX,FXSR,SSE,SSE2,HTT,SSE3,PCLMUL,SSSE3,CX16,SSE4.1,SSE4.2,MOVBE,POPCNT,AES,XSAVE,AVX,RDRAND,NXE,RDTSCP,LONG,LAHF,ABM,3DNOWP,ITSC,RDSEED,CLFLUSHOPT
cpu0: 256KB 64b/line 8-way L2 cache
cpu0: TSC frequency 4008518750 Hz
cpu0: smt 0, core 0, package 0
mtrr: CPU supports MTRRs but not enabled by BIOS
cpu0: apic clock running at 999MHz
cpu at mainbus0: not configured
ioapic0 at mainbus0: apid 2 pa 0xfec00000, version 20, 24 pins
, remapped to apid 2
acpihpet0 at acpi0: 14318179 Hz
acpimcfg0 at acpi0 addr 0xdc000000, bus 0-63
acpiprt0 at acpi0: bus 0 (PCI0)
acpicpu0 at acpi0: C1(@1 halt!)
"PNP0F03" at acpi0 not configured
acpiac0 at acpi0: AC unit online
acpivideo0 at acpi0: GFX0
pci0 at mainbus0 bus 0
vga1 at pci0 dev 2 function 0 "InnoTek VirtualBox Graphics Adapter" rev 0x00
wsdisplay0 at vga1 mux 1: console (80x25, vt100 emulation)
wsdisplay0: screen 1-5 added (80x25, vt100 emulation)
virtio0 at pci0 dev 3 function 0 "Qumranet Virtio Network" rev 0x00
vio0 at virtio0: address 08:00:27:ba:11:77
virtio0: apic 2 int 19
"InnoTek VirtualBox Guest Service" rev 0x00 at pci0 dev 4 function 0 not
configured
auich0 at pci0 dev 5 function 0 "Intel 82801AA AC97" rev 0x01: apic 2 int
21, ICH
ac97: codec id 0x83847600 (SigmaTel STAC9700)
audio0 at auich0
piixpm0 at pci0 dev 7 function 0 "Intel 82371AB Power" rev 0x08: apic 2 int
23
iic0 at piixpm0
ppb0 at pci0 dev 24 function 0 "Intel 82801BAM Hub-to-PCI" rev 0xf2
pci1 at ppb0 bus 1
ppb1 at pci0 dev 25 function 0 "Intel 82801BAM Hub-to-PCI" rev 0xf2
pci2 at ppb1 bus 2
pcib0 at pci0 dev 31 function 0 "Intel 82801GBM LPC" rev 0x02
"Intel 82371AB IDE" rev 0x01 at pci0 dev 31 function 1 not configured
ohci0 at pci0 dev 31 function 4 "Apple Intrepid USB" rev 0x00: apic 2 int
23, version 1.0
ehci0 at pci0 dev 31 function 5 "Intel 82801FB USB" rev 0x00: apic 2 int 23
usb0 at ehci0: USB revision 2.0
uhub0 at usb0 configuration 1 interface 0 "Intel EHCI root hub" rev
2.00/1.00 addr 1
isa0 at pcib0
isadma0 at isa0
com0 at isa0 port 0x3f8/8 irq 4: ns16550a, 16 byte fifo
com0: console
pckbc0 at isa0 port 0x60/5 irq 1 irq 12
pckbd0 at pckbc0 (kbd slot)
wskbd0 at pckbd0: console keyboard, using wsdisplay0
pms0 at pckbc0 (aux slot)
wsmouse0 at pms0 mux 0
uvm_fault(0xffffffff81b16038, 0x60, 0, 1) -> e
kernel: page fault trap, code=0
Stopped at wdcprobe+0x13e: movzwl 0x60(%rax),%eax
ddb> trace
wdcprobe(ffffffff81a85530,0,ffffffff81d268a0,0,10,ffffffff81d25fe0) at
wdcprobe+0x13e
wdc_isa_probe(ffffffff81a85530,ffff8000000fe800,ffff8000000fb400,ee487fc7fc5a75c,0,0)
at wdc_isa_probe+0xb0
isascan(ffff8000000fb400,ffffffff813a6400,ffffffff81a81960,ffffffff81aa2201,ffffffff81a85530,ee487fc7fc5a75c)
at isascan+0x288
config_scan(ffff800000080b80,ffffffff81d26ca0,ffff8000000fb424,ffffffff81aa22a8,ffff8000000fb400,ffff8000000fb448)
at config_scan+0xb1
config_attach(ffff80000001a3e0,ffff800000014e00,ffff800000014e24,ffffffff81b36da0,ffff80000001a3a0,ffffffff811edea0)
at config_attach+0x1d8
pcib_callback(ee487fc7fc5a75c,0,ffffffff81ab7420,ffffffff81957678,ffffffff81957548,ffffffff8191db81)
at pcib_callback+0x4e
config_process_deferred_children(ffff80000001b100,ffffffff81d26d88,ffffffff81a914c0,ffff800000014e00,ffffffff81535122,ffffffff81d26d00)
at config_process_deferred_children+0x72
config_attach(0,ffff80000001b100,ffff80000001b124,ffffffff81a8eca8,ffffffff81d26d88,ffffffff810c7da0)
at config_attach+0x1e0
mainbus_attach(0,ffff80000001b100,ee487fc7fc5a75c,0,0,0) at
mainbus_attach+0x247
config_attach(ffffffff81d26e78,0,b28,ffffffff818338a0,ffffffff81a87c9a,0)
at config_attach+0x1d8
config_rootfound(0,0,0,0,ffffffff81d20008,ee487fc7fc5a75c) at
config_rootfound+0xe1
cpu_configure(0,ffffffff81d20008,ffffffff814c575a,ffffffff81d26ef0,0,0) at
cpu_configure+0x1a
main(0,ffffffff81d20008,0,0,ffffffff810c4e72,ffffffff81d26f20) at main+0x472
end trace frame: 0x0, count: -13
ddb>
========
Reverting wdc.c makes wdc0 at isa0 function properly in these "disable
pciide" test cases as well.
