Date: Tue, 5 May 2009 01:49:00 -0400 From: Duane <duane@cheekymonkey.us> To: freebsd-questions <freebsd-questions@freebsd.org> Subject: Re: Part II: Running SMP kernel but only one cpu Message-ID: <5e8ad96d0905042249p670eefeakf61d578bf09e373@mail.gmail.com> In-Reply-To: <ade45ae90905042045i7b27d289h5088d60daecd53da@mail.gmail.com> References: <5e8ad96d0905041746o67c463e9t1297a0b3103557bf@mail.gmail.com> <ade45ae90905042045i7b27d289h5088d60daecd53da@mail.gmail.com>
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[-- Attachment #1 --]
On 5/4/09, Tim Judd <tajudd@gmail.com> wrote:
> IRQ15 is typically your secondary IDE controller; but due to PCI (or E-ISA)
> plug&play, including the PnP the BIOS may setup, lots of others can be on
> that bus too.
This box has one SCSI card running two SCSI drives. The IDE's are
disabled in the BIOS. But the SCSI card does feature in the problem:
> # grep -i irq15 /var/run/dmesg.boot
No 'irq15' is found. One can see that the "interrupt storm" begins
when the SCSI drives begin to spin up, IF the machine is booting with
two cpus initialized. dmesg.boot is attached for everyone's
edification and amusement!
Another interesting datapoint is that if the machine is booted in Safe
Mode the "interrupt storm" disappears, but so does the second cpu.
Best regards,
--
Duane
[-- Attachment #2 --]
Copyright (c) 1992-2008 The FreeBSD Project.
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FreeBSD 6.4-RELEASE #0: Mon May 4 02:28:04 EDT 2009
root@poobah.legomenon.org:/usr/obj/usr/src/sys/SMPBOB1
Timecounter "i8254" frequency 1193182 Hz quality 0
CPU: Pentium Pro (179.63-MHz 686-class CPU)
Origin = "GenuineIntel" Id = 0x617 Stepping = 7
Features=0xfbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV>
real memory = 268435456 (256 MB)
avail memory = 257220608 (245 MB)
MPTable: <INTEL 440FX >
FreeBSD/SMP: Multiprocessor System Detected: 2 CPUs
cpu0 (BSP): APIC ID: 1
cpu1 (AP): APIC ID: 0
ioapic0: Assuming intbase of 0
ioapic0 <Version 1.1> irqs 0-23 on motherboard
kbd1 at kbdmux0
cpu0 on motherboard
cpu1 on motherboard
pcib0: <MPTable Host-PCI bridge> pcibus 0 on motherboard
pci0: <PCI bus> on pcib0
isab0: <PCI-ISA bridge> at device 7.0 on pci0
isa0: <ISA bus> on isab0
atapci0: <Intel PIIX3 WDMA2 controller> port 0x1f0-0x1f7,0x3f6,0x170-0x177,0x376,0xf4d0-0xf4df at device 7.1 on pci0
ata0: <ATA channel 0> on atapci0
ata1: <ATA channel 1> on atapci0
pci0: <display, VGA> at device 15.0 (no driver attached)
sym0: <895> port 0xe800-0xe8ff mem 0xf0dff400-0xf0dff4ff,0xf0dfe000-0xf0dfefff irq 18 at device 16.0 on pci0
sym0: Symbios NVRAM, ID 8, Fast-40, LVD, parity checking
sym0: open drain IRQ line driver, using on-chip SRAM
sym0: using LOAD/STORE-based firmware.
sym0: [GIANT-LOCKED]
xl0: <3Com 3c905B-TX Fast Etherlink XL> port 0xf400-0xf47f mem 0xf0dffc00-0xf0dffc7f irq 17 at device 17.0 on pci0
miibus0: <MII bus> on xl0
bmtphy0: <3c905B 10/100 internal PHY> on miibus0
bmtphy0: 10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto
xl0: Ethernet address: 00:50:04:9a:ca:81
ed0: <RealTek 8029> port 0xf4e0-0xf4ff irq 16 at device 18.0 on pci0
ed0: Ethernet address: 00:40:33:a0:dd:0b
ed0: type RTL8029 (16 bit)
orm0: <ISA Option ROMs> at iomem 0xc0000-0xca7ff,0xca800-0xcdfff on isa0
atkbdc0: <Keyboard controller (i8042)> at port 0x60,0x64 on isa0
atkbd0: <AT Keyboard> irq 1 on atkbdc0
kbd0 at atkbd0
atkbd0: [GIANT-LOCKED]
psm0: <PS/2 Mouse> irq 12 on atkbdc0
psm0: [GIANT-LOCKED]
psm0: model IntelliMouse Explorer, device ID 4
fdc0: <Enhanced floppy controller> at port 0x3f0-0x3f5,0x3f7 irq 6 drq 2 on isa0
fdc0: [FAST]
fd0: <1440-KB 3.5" drive> on fdc0 drive 0
ppc0: parallel port not found.
sc0: <System console> at flags 0x100 on isa0
sc0: VGA <16 virtual consoles, flags=0x300>
sio0: configured irq 4 not in bitmap of probed irqs 0
sio0: port may not be enabled
sio0 at port 0x3f8-0x3ff irq 4 flags 0x10 on isa0
sio0: type 8250 or not responding
sio1: configured irq 3 not in bitmap of probed irqs 0
sio1: port may not be enabled
vga0: <Generic ISA VGA> at port 0x3c0-0x3df iomem 0xa0000-0xbffff on isa0
ppc1: parallel port not found.
unknown: <PNP0700> can't assign resources (port)
unknown: <PNP0c02> can't assign resources (memory)
unknown: <PNP0303> can't assign resources (port)
unknown: <PNP0f13> can't assign resources (irq)
Timecounters tick every 1.000 msec
Waiting 5 seconds fointerrupt storm detected on "irq15:"; throttling interrupt source
r SCSI devices to settle
(noperiph:sym0:0:-1:-1): SCSI BUS reset delivered.
interrupt storm detected on "irq15:"; throttling interrupt source
interrupt storm detected on "irq15:"; throttling interrupt source
interrupt storm detected on "irq15:"; throttling interrupt source
interrupt storm detected on "irq15:"; throttling interrupt source
interrupt storm detected on "irq15:"; throttling interrupt source
interrupt storm detected on "irq15:"; throttling interrupt source
interrupt storm detected on "irq15:"; throttling interrupt source
interrupt storm detected on "irq15:"; throttling interrupt source
da0 at sym0 bus 0 target 0 lun 0
da0: <HP 9.10GB A 80-B001 B001> Fixed Direct Access SCSI-2 device
da0: 80.000MB/s transfers (40.000MHz, offset 15, 16bit), Tagged Queueing Enabled
da0: 8678MB (17773524 512 byte sectors: 255H 63S/T 1106C)
da1 at sym0 bus 0 target 1 lun 0
da1: <IBM-PSG DMVS09D !# 01B0> Fixed Direct Access SCSI-3 device
da1: 80.000MB/s transfers (40.000MHz, offset 31, 16bit), Tagged Queueing Enabled
da1: 8678MB (17774160 512 byte sectors: 255H 63S/T 1106C)
SMP: AP CPU #1 Launched!
interrupt storm detected on "irq15:"; throttling interrupt source
Trying to mount root from ufs:/dev/da0s1a
interrupt storm detected on "irq15:"; throttling interrupt source
interrupt storm detected on "irq15:"; throttling interrupt source
interrupt storm detected on "irq15:"; throttling interrupt source
interrupt storm detected on "irq15:"; throttling interrupt source
interrupt storm detected on "irq15:"; throttling interrupt source
interrupt storm detected on "irq15:"; throttling interrupt source
interrupt storm detected on "irq15:"; throttling interrupt source
interrupt storm detected on "irq15:"; throttling interrupt source
interrupt storm detected on "irq15:"; throttling interrupt source
interrupt storm detected on "irq15:"; throttling interrupt source
interrupt storm detected on "irq15:"; throttling interrupt source
interrupt storm detected on "irq15:"; throttling interrupt source
interrupt storm detected on "irq15:"; throttling interrupt source
interrupt storm detected on "irq15:"; throttling interrupt source
interrupt storm detected on "irq15:"; throttling interrupt source
interrupt storm detected on "irq15:"; throttling interrupt source
interrupt storm detected on "irq15:"; throttling interrupt source
interrupt storm detected on "irq15:"; throttling interrupt source
interrupt storm detected on "irq15:"; throttling interrupt source
interrupt storm detected on "irq15:"; throttling interrupt source
interrupt storm detected on "irq15:"; throttling interrupt source
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