Date: Mon, 30 Mar 98 22:42:30 +0200 From: Ben Stuyts <benst@terminus.stuyts.nl> To: smp@FreeBSD.ORG Subject: Log messages from latest SMP kernel Message-ID: <199803302042.WAA05032@daneel.stuyts.nl>
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Running a kernel from about March 27, I get a lot of log messages like this:
> sio2: 3 more interrupt-level buffer overflows (total 69)
> forward_hardclock: checkstate 0
> forward_hardclock: checkstate 0
> forward_hardclock: checkstate 0
> forward_hardclock: checkstate 0
> forward_hardclock: checkstate 0
> sio2: 3 more interrupt-level buffer overflows (total 72)
> forward_hardclock: checkstate 0
> sio2: 3 more interrupt-level buffer overflows (total 75)
> forward_hardclock: checkstate 0
> forward_hardclock: checkstate 0
> forward_hardclock: checkstate 0
> forward_hardclock: checkstate 0
> forward_hardclock: checkstate 0
> forward_hardclock: checkstate 0
An older kernel (from before the fs trouble earlier this month) didn't have
this behavior. Especially the sio overflows worry me. Has the interrupt
latency gone up lately? sio2 is a 230 kb line to a 64 kb ISDN modem. Here is
the output of dmesg:
Copyright (c) 1992-1998 FreeBSD Inc.
Copyright (c) 1982, 1986, 1989, 1991, 1993
The Regents of the University of California. All rights reserved.
FreeBSD 3.0-CURRENT #0: Fri Mar 27 01:16:00 MET 1998
benst@terminus.stuyts.nl:/usr/source/src/sys/compile/TERMINUS-SMP
Timecounter "i8254" frequency 1193182 Hz cost 2527 ns
CPU: Pentium (586-class CPU)
Origin = "GenuineIntel" Id = 0x543 Stepping=3
Features=0x8003bf<FPU,VME,DE,PSE,TSC,MSR,MCE,CX8,APIC,MMX>
real memory = 67108864 (65536K bytes)
avail memory = 62681088 (61212K bytes)
FreeBSD/SMP: Multiprocessor motherboard
cpu0 (BSP): apic id: 0, version: 0x00030010, at 0xfee00000
cpu1 (AP): apic id: 1, version: 0x00030010, at 0xfee00000
io0 (APIC): apic id: 2, version: 0x00170011, at 0xfec00000
Probing for devices on PCI bus 0:
chip0: <Intel 82439> rev 0x03 on pci0.0.0
chip1: <Intel 82371SB PCI to ISA bridge> rev 0x01 on pci0.7.0
ide_pci0: <Intel PIIX3 Bus-master IDE controller> rev 0x00 on pci0.7.1
de0: <Digital 21041 Ethernet> rev 0x11 int a irq 17 on pci0.9.0
de0: SMC 21041 [10Mb/s] pass 1.1
de0: address 00:00:c0:1f:54:e8
vga0: <S3 ViRGE VX graphics accelerator> rev 0x02 int a irq 18 on pci0.10.0
ahc0: <Adaptec aic7880 Ultra SCSI host adapter> rev 0x00 int a irq 19 on pci0.12.0
ahc0: Using left over BIOS settings
ahc0: aic7880 Wide Channel, SCSI Id=7, 16 SCBs
ahc0: waiting for scsi devices to settle
scbus0 at ahc0 bus 0
ahc0: target 1 Tagged Queuing Device
sd0 at scbus0 target 1 lun 0
sd0: <IBM DCAS-34330W S61A> type 0 fixed SCSI 2
sd0: Direct-Access 4134MB (8467200 512 byte sectors)
sd0: with 8205 cyls, 6 heads, and an average 171 sectors/track
sd1 at scbus0 target 3 lun 0
sd1: <QUANTUM TRB850S 0404> type 0 fixed SCSI 2
sd1: Direct-Access 810MB (1660299 512 byte sectors)
sd1: with 3653 cyls, 4 heads, and an average 113 sectors/track
cd0 at scbus0 target 4 lun 0
cd0: <MATSHITA CD-ROM CR-506 8S05> type 5 removable SCSI 2
cd0: CD-ROM can't get the size
worm0 at scbus0 target 5 lun 0
worm0: <PHILIPS CDD2600 1.06> type 5 removable SCSI 2
worm0: Write-Once
Probing for PnP devices:
CSN 1 Vendor ID: CTL0039 [0x39008c0e] Serial 0x00020ddb
Probing for devices on the ISA bus:
sc0 at 0x60-0x6f irq 1 on motherboard
sc0: VGA color <16 virtual consoles, flags=0x0>
sio0 at 0x3f8-0x3ff irq 4 flags 0x10 on isa
sio0: type 16550A
sio1 at 0x2f8-0x2ff irq 3 on isa
sio1: type 16550A
sio2 at 0x3e8-0x3ef irq 10 on isa
sio2: type 16550A
sio3 at 0x2e8-0x2ef irq 9 on isa
sio3: type 16550A
lpt0 at 0x378-0x37f irq 7 on isa
lpt0: Interrupt-driven port
lp0: TCP/IP capable interface
psm0 at 0x60-0x64 irq 12 on motherboard
psm0: model Generic PS/2 mouse, device ID 0
fdc0 at 0x3f0-0x3f7 irq 6 drq 2 on isa
fdc0: FIFO enabled, 8 bytes threshold
fd0: 1.44MB 3.5in
wdc0 at 0x1f0-0x1f7 irq 14 on isa
wdc0: unit 0 (wd0): <QUANTUM FIREBALL_TM2110A>
wd0: 2014MB (4124736 sectors), 4092 cyls, 16 heads, 63 S/T, 512 B/S
npx0 on motherboard
npx0: INT 16 interface
sb0 at 0x220 irq 5 drq 1 on isa
snd0: <SoundBlaster 16 4.13>
sbxvi0 at ? drq 5 on isa
snd0: <SoundBlaster 16 4.13>
sbmidi0 at 0x330 on isa
snd0: <SoundBlaster MPU-401>
opl0 at 0x388 on isa
snd0: <Yamaha OPL3 FM>
Intel Pentium F00F detected, installing workaround
APIC_IO: Testing 8254 interrupt delivery
APIC_IO: routing 8254 via pin 2
SMP: AP CPU #1 Launched!
WARNING: / was not properly dismounted.
Start pid=2 <pagedaemon>
Start pid=3 <vmdaemon>
Start pid=4 <syncer>
de0: enabling BNC port
sio3: 64 events for device with no tp
sio2: 2 more interrupt-level buffer overflows (total 2)
forward_hardclock: checkstate 0
forward_hardclock: checkstate 0
This is a Gigabyte 586DX board with dual P166 MMX.
Kind regards,
Ben
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