Date: Wed, 14 Feb 2001 19:05:40 -0800 From: Matthew Reimer <mreimer@vpop.net> To: stable@freebsd.org Subject: Reproducible kernel panic during boot; probably SCSI-related Message-ID: <3A8B4784.3C273AB7@vpop.net>
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We've had a reproducible problem today with 4.2-STABLE from between
2001/02/13 1500 PST to 2001/02/14 1500 PST, where the kernel would print
the message "Waiting 2 seconds for SCSI devices to settle" and then
panic (details below). This would happen every time. I rebuilt the
kernel several times to make sure there were no stale dependencies but
every time it panicked the same way. Eventually I cvsup'd /sys sources
from 2001/02/10 and the problem went away. I presume the problem is
still in -stable.
I wasn't able to get a dump because *dumpdev = 0xffffffff. (Does anyone
know how to get dumpdev set properly this early in the boot process? In
-current one could use "show /disk/da0s1b" but we don't have that in
-stable.)
This is running on an L440GX mobo with one extra 2940 controller, for a
total of three.
Any ideas?
Matt
Fatal trap 12: page fault while in kernel mode
fault virtual address = 0x123
fault code = supervisor read, page not present
instruction pointer = 0x8:0xc013a2b8
stack pointer = 0x10:0xc03aea88
frame pointer = 0x10:0xc03aeab4
code segment = base 0x0, limit 0xfffff, type 0x1b
= DPL 0, pres 1, def32 1, gran 1
processor eflags = interrupt enabled, resume, IOPL = 0
current process = 0 (swapper)
interrupt mask = cam
kernel: type 12 trap, code=0
Stopped at ahc_get_tran_settings+0xbc: movzbl 0x3(%esi),%eax
db> trace
ahc_get_tran_settings(c163fa00,0,42,c03aeb84) at
ahc_get_tran_settings+0xbc
ahc_action(c163d740,c03aeb84) at ahc_action+0x636
xpt_action(c03aeb84,c03aeb84,c0a34240,1,c03aec10) at xpt_action+0x376
proberequestdefaultnegotiation(c16c2a00,c16c501c,c16c2a00,1,1) at
proberequestdefaultnegotiation+0x2c
probeschedule(c16c2a00,c16c2a00,c163d718,7d0,c16c2a00) at
probeschedule+0x6d
proberegister(c16c2a00,c16c5000,6c0000,c03aed60,c16c5000) at
proberegister+0x7c
cam_periph_alloc(c0122078,0,c01228e4,c01221cc,c02359d8) at
cam_periph_alloc+0x1e2
xpt_scan_lun(c1640c00,c0a34260,10003201,c16c5000) at xpt_scan_lun+0x1c5
xpt_action(c16c5000,c16c5000,c0a34260,1) at xpt_action+0x946
xpt_scan_bus(c1640c00,c16c5800) at xpt_scan_bus+0x123
xpt_action(c16c5800,c16c5800,c163d700,c011f8a4,c03aef28) at
xpt_action+0x92c
xpt_finishconfig(c1640c00,c16c5800,c163d380,c03aef68,c0a34280) at
xpt_finishconfig+0x30
xptconfigfunc(c163d700,0,c03aef54,c011f723,c163d700) at
xptconfigfunc+0xfb
xptdefbusfunc(c163d700,c03aef68) at xptdefbusfunc+0x29
xptbustraverse(0,c011f8a4,c03aef68,0,c0122d70) at xptbustraverse+0x2b
xpt_for_all_busses(c0122d70,0,c03aef94,c0160f9e,0) at
xpt_for_all_busses+0x29
xpt_config(0) at xpt_config+0x50
run_interrupt_driven_config_hooks(0,3acc00,3b3000,0,c011d414) at
run_interrupt_driven_config_hooks+0x1a
mi_startup(c03aefb4,b0202,ffe,3b3000,c0166da5) at mi_startup+0x70
begin() at begin+0x4b
--- dmesg of a working kernel from 2001.02.10.00.00.00
FreeBSD 4.2-STABLE #4: Wed Feb 14 17:06:26 PST 2001
mreimer@thorin.vpop.net:/usr/obj/usr/src/sys/RING
Timecounter "i8254" frequency 1193182 Hz
Timecounter "TSC" frequency 547179703 Hz
CPU: Pentium III/Pentium III Xeon/Celeron (547.18-MHz 686-class CPU)
Origin = "GenuineIntel" Id = 0x673 Stepping = 3
Features=0x387fbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CM
OV,PAT,PSE36,PN,MMX,FXSR,SSE>
real memory = 268369920 (262080K bytes)
avail memory = 257646592 (251608K bytes)
Preloaded elf kernel "kernel" at 0xc038d000.
Pentium Pro MTRR support enabled
npx0: <math processor> on motherboard
npx0: INT 16 interface
pcib0: <Intel 82443GX host to PCI bridge> on motherboard
pci0: <PCI bus> on pcib0
pcib2: <Intel 82443GX (440 GX) PCI-PCI (AGP) bridge> at device 1.0 on
pci0
pci1: <PCI bus> on pcib2
pcib3: <PCI to PCI bridge (vendor=1011 device=0023)> at device 15.0 on
pci1
pci2: <PCI bus> on pcib3
ahc0: <Adaptec aic7896/97 Ultra2 SCSI adapter> port 0x1400-0x14ff mem
0xf4100000
-0xf4100fff irq 11 at device 12.0 on pci0
aic7896/97: Wide Channel A, SCSI Id=7, 32/255 SCBs
ahc1: <Adaptec aic7896/97 Ultra2 SCSI adapter> port 0x1800-0x18ff mem
0xf4101000
-0xf4101fff irq 11 at device 12.1 on pci0
aic7896/97: Wide Channel B, SCSI Id=7, 32/255 SCBs
fxp0: <Intel Pro 10/100B/100+ Ethernet> port 0x1080-0x10bf mem
0xf4000000-0xf40f
ffff,0xf4102000-0xf4102fff irq 10 at device 14.0 on pci0
fxp0: Ethernet address 00:a0:c9:fb:26:e6
ahc2: <Adaptec 2940 SCSI adapter> port 0x2000-0x20ff mem
0xf4103000-0xf4103fff i
rq 5 at device 16.0 on pci0
aic7870: Wide Channel A, SCSI Id=7, 16/255 SCBs
isab0: <Intel 82371AB PCI to ISA bridge> at device 18.0 on pci0
isa0: <ISA bus> on isab0
pci0: <Intel PIIX4 ATA controller> at 18.1
pci0: <Intel 82371AB/EB (PIIX4) USB controller> at 18.2 irq 10
chip1: <Intel 82371AB Power management controller> port 0x1040-0x104f at
device
18.3 on pci0
pci0: <Cirrus Logic GD5480 SVGA controller> at 20.0
pcib1: <Intel 82443GX host to AGP bridge> on motherboard
pci3: <PCI bus> on pcib1
fdc0: <NEC 72065B or clone> at port 0x3f0-0x3f5,0x3f7 irq 6 drq 2 on
isa0
fdc0: FIFO enabled, 8 bytes threshold
fd0: <1440-KB 3.5" drive> on fdc0 drive 0
atkbdc0: <Keyboard controller (i8042)> at port 0x60,0x64 on isa0
atkbd0: <AT Keyboard> irq 1 on atkbdc0
vga0: <Generic ISA VGA> at port 0x3c0-0x3df iomem 0xa0000-0xbffff on
isa0
sc0: <System console> on isa0
sc0: VGA <16 virtual consoles, flags=0x0>
sio0 at port 0x3f8-0x3ff irq 4 flags 0x10 on isa0
sio0: type 16550A, console
sio1: configured irq 3 not in bitmap of probed irqs 0
IP packet filtering initialized, divert disabled, rule-based forwarding
enabled,
default to deny, logging disabled
Waiting 2 seconds for SCSI devices to settle
sa0 at ahc2 bus 0 target 0 lun 0
sa0: <Quantum DLT4000 D069> Removable Sequential Access SCSI-2 device
sa0: 10.000MB/s transfers (10.000MHz, offset 15)
da1 at ahc0 bus 0 target 1 lun 0
da1: <IBM DMVS36V 0100> Fixed Direct Access SCSI-3 device
da1: 40.000MB/s transfers (20.000MHz, offset 31, 16bit), Tagged Queueing
Enabled
da1: 35003MB (71687340 512 byte sectors: 255H 63S/T 4462C)
da0 at ahc0 bus 0 target 0 lun 0
da0: <IBM DNES-309170W SA30> Fixed Direct Access SCSI-3 device
da0: 40.000MB/s transfers (20.000MHz, offset 31, 16bit), Tagged Queueing
Enabled
da0: 8748MB (17916240 512 byte sectors: 255H 63S/T 1115C)
ch0 at ahc2 bus 0 target 1 lun 0
ch0: <HP C6280-4000 2.04> Removable Changer SCSI-2 device
ch0: 3.300MB/s transfers
ch0: 8 slots, 1 drive, 1 picker, 0 portals
da2 at ahc1 bus 0 target 2 lun 0
da2: <IBM DMVS36V 0100> Fixed Direct Access SCSI-3 device
da2: 40.000MB/s transfers (20.000MHz, offset 31, 16bit), Tagged Queueing
Enabled
da2: 35003MB (71687340 512 byte sectors: 255H 63S/T 4462C)
Mounting root from ufs:/dev/da0s1a
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