Date: Thu, 20 Apr 2006 18:56:05 +0200 From: Holger Kipp <hk@alogis.com> To: stable@freebsd.org Subject: swi4: clock sio uses 10% cpu Message-ID: <20060420165605.GA15688@intserv.int1.b.intern>
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Hello,
I have a little problem here with swi4: clock sio using lots
of CPU (ie 16% Intr). Apart from that, accessing modems behind
Titan PCI-800H seems to be a nightmare. I had silo overflows
(increasing cp4ticks in sio.c did help here - see eg PR 26261)
too. This is a vanilla FreeBSD system with only mgetty, perl
and cvsup-without-gui being installed.
This is on an old system with two mux-cards
(ATA based 8-port card at irq 12 and
pci based Titan PCI-800H).
HZ is currently set to 100, but I have the same problem with HZ set to 1000.
Problems started with inserting the PCI-Card and going to FreeBSD 6.
I didn't have these problems with older version, but that didn't support
the Titan PCI-800H. Dmesg below
0 21 0 0 -68 0 0 8 - WL ?? 0:01.98 [irq15: fxp0 ata1]
0 20 0 0 -64 0 0 8 - WL ?? 0:00.77 [irq14: ata0 ahc0]
0 37 0 0 -64 0 0 8 - DL ?? 0:00.40 [schedcpu]
0 22 0 0 -60 0 0 8 - WL ?? 0:00.60 [irq10: puc0 puc1]
0 24 0 0 -60 0 0 8 - WL ?? 0:00.00 [irq1: atkbd0]
0 25 0 0 -60 0 0 8 - WL ?? 0:00.00 [irq7: ppc0]
0 23 0 0 -48 0 0 8 - WL ?? 0:00.30 [swi0: sio]
0 12 0 0 -44 0 0 8 - WL ?? 0:01.41 [swi1: net]
0 16 0 0 -40 0 0 8 - WL ?? 0:00.08 [swi2: cambio]
0 14 0 0 -36 0 0 8 - WL ?? 0:00.00 [swi3: vm]
0 13 0 5 -32 0 0 8 - WL ?? 10:13.33 [swi4: clock sio]
0 19 0 0 -28 0 0 8 - WL ?? 0:00.00 [swi5: +]
0 17 0 0 -24 0 0 8 - WL ?? 0:00.00 [swi6: task queue]
0 18 0 0 -24 0 0 8 - WL ?? 0:00.00 [swi6: Giant taskq]
0 10 0 0 -16 0 0 8 ktrace DL ?? 0:00.00 [ktrace]
0 15 0 0 -16 0 0 8 - DL ?? 0:00.52 [yarrow]
0 26 0 0 -16 0 0 8 psleep DL ?? 0:00.01 [pagedaemon]
0 29 0 0 -16 0 0 8 psleep DL ?? 0:00.03 [bufdaemon]
0 32 0 0 -16 0 0 8 sdflus DL ?? 0:00.10 [softdepflush]
0 2 0 0 -8 0 0 8 - DL ?? 0:00.36 [g_event]
0 3 0 0 -8 0 0 8 - DL ?? 0:00.33 [g_up]
0 4 0 0 -8 0 0 8 - DL ?? 0:00.45 [g_down]
0 9 0 0 -8 0 0 8 - DL ?? 0:00.03 [fdc0]
0 31 0 0 -4 0 0 8 vlruwt DL ?? 0:00.02 [vnlru]
[..]
0 11 0 24 171 0 0 8 - RL ?? 58:38.03 [idle]
Suggestions, ideas etc. welcome. On second thoughs, if someone could
recommend good stable hardware (board, sio-cards, etc.) to use with FreeBSD 6.x
that supports 16 to 32 modem lines without problems and with high-speed
(230400), I'd also appreciate that... ;-)
Holger
-------------- dmesg -------------------------------------------
Copyright (c) 1992-2006 The FreeBSD Project.
Copyright (c) 1979, 1980, 1983, 1986, 1988, 1989, 1991, 1992, 1993, 1994
The Regents of the University of California. All rights reserved.
FreeBSD 6.1-PRERELEASE #4: Wed Mar 29 17:06:12 CEST 2006
root@dialout.dout1.b.intern:/usr/obj/usr/src/sys/B-DIALOUT
Timecounter "i8254" frequency 1193182 Hz quality 0
CPU: Pentium III/Pentium III Xeon/Celeron (501.14-MHz 686-class CPU)
Origin = "GenuineIntel" Id = 0x673 Stepping = 3
Features=0x383f9ff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,MMX,FXSR,SSE>
real memory = 134205440 (127 MB)
avail memory = 121810944 (116 MB)
npx0: [FAST]
npx0: <math processor> on motherboard
npx0: INT 16 interface
cpu0 on motherboard
pcib0: <Intel 82443BX (440 BX) host to PCI bridge> pcibus 0 on motherboard
pir0: <PCI Interrupt Routing Table: 7 Entries> on motherboard
$PIR: Using invalid BIOS IRQ 15 from 0.10.INTA for link 0x62
$PIR: Using invalid BIOS IRQ 14 from 0.6.INTA for link 0x63
pci0: <PCI bus> on pcib0
agp0: <Intel 82443BX (440 BX) host to PCI bridge> mem 0xe4000000-0xe7ffffff at device 0.0 on pci0
pcib1: <PCI-PCI bridge> at device 1.0 on pci0
pci1: <PCI bus> on pcib1
pci1: <display, VGA> at device 0.0 (no driver attached)
isab0: <PCI-ISA bridge> at device 4.0 on pci0
isa0: <ISA bus> on isab0
atapci0: <Intel PIIX4 UDMA33 controller> port 0x1f0-0x1f7,0x3f6,0x170-0x177,0x376,0xb800-0xb80f at device 4.1 on pci0
ata0: <ATA channel 0> on atapci0
ata1: <ATA channel 1> on atapci0
pci0: <serial bus, USB> at device 4.2 (no driver attached)
pci0: <bridge> at device 4.3 (no driver attached)
ahc0: <Adaptec aic7890/91 Ultra2 SCSI adapter> port 0xb000-0xb0ff mem 0xe1000000-0xe1000fff irq 14 at device 6.0 on pci0
ahc0: [GIANT-LOCKED]
aic7890/91: Ultra2 Wide Channel A, SCSI Id=7, 32/253 SCBs
fxp0: <Intel 82559 Pro/100 Ethernet> port 0xa800-0xa83f mem 0xe0800000-0xe0800fff,0xe0000000-0xe00fffff irq 15 at device 10.0 on pci0
miibus0: <MII bus> on fxp0
inphy0: <i82555 10/100 media interface> on miibus0
inphy0: 10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto
fxp0: Ethernet address: 00:d0:b7:16:53:60
puc0: <Titan PCI-800H> port 0xa400-0xa41f,0xa000-0xa01f mem 0xdf800000-0xdf800fff,0xdf000000-0xdf000fff irq 10 at device 11.0 on pci0
sio12: <Titan PCI-800H> on puc0
sio12: type 16550A
sio12: unable to activate interrupt in fast mode - using normal mode
sio13: <Titan PCI-800H> on puc0
sio13: type 16550A
sio13: unable to activate interrupt in fast mode - using normal mode
sio14: <Titan PCI-800H> on puc0
sio14: type 16550A
sio14: unable to activate interrupt in fast mode - using normal mode
sio15: <Titan PCI-800H> on puc0
sio15: type 16550A
sio15: unable to activate interrupt in fast mode - using normal mode
puc1: <Titan PCI-800H> port 0x9800-0x981f,0x9400-0x941f mem 0xde800000-0xde800fff,0xde000000-0xde000fff irq 10 at device 11.1 on pci0
sio16: <Titan PCI-800H> on puc1
sio16: type 16550A
sio16: unable to activate interrupt in fast mode - using normal mode
sio17: <Titan PCI-800H> on puc1
sio17: type 16550A
sio17: unable to activate interrupt in fast mode - using normal mode
sio18: <Titan PCI-800H> on puc1
sio18: type 16550A
sio18: unable to activate interrupt in fast mode - using normal mode
sio19: <Titan PCI-800H> on puc1
sio19: type 16550A
sio19: unable to activate interrupt in fast mode - using normal mode
pmtimer0 on isa0
orm0: <ISA Option ROMs> at iomem 0xc0000-0xc7fff,0xc8000-0xcd7ff,0xd0000-0xd0fff 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]
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> at port 0x378-0x37f irq 7 on isa0
ppc0: SMC-like chipset (ECP/EPP/PS2/NIBBLE) in COMPATIBLE mode
ppc0: FIFO with 16/16/9 bytes threshold
ppbus0: <Parallel port bus> on ppc0
plip0: <PLIP network interface> on ppbus0
lpt0: <Printer> on ppbus0
lpt0: Interrupt-driven port
ppi0: <Parallel I/O> on ppbus0
sc0: <System console> at flags 0x100 on isa0
sc0: VGA <32 virtual consoles, flags=0x300>
sio0 at port 0x3f8-0x3ff irq 4 flags 0x10 on isa0
sio0: type 16550A
sio1 at port 0x2f8-0x2ff irq 3 on isa0
sio1: type 16550A
sio10 at port 0x130-0x137 flags 0xb05 on isa0
sio10: type 16550A (multiport)
sio11 at port 0x138-0x13f irq 12 flags 0xb05 on isa0
sio11: type 16550A (multiport master)
sio4 at port 0x100-0x107 flags 0xb05 on isa0
sio4: type 16550A (multiport)
sio5 at port 0x108-0x10f flags 0xb05 on isa0
sio5: type 16550A (multiport)
sio6 at port 0x110-0x117 flags 0xb05 on isa0
sio6: type 16550A (multiport)
sio7 at port 0x118-0x11f flags 0xb05 on isa0
sio7: type 16550A (multiport)
sio8 at port 0x120-0x127 flags 0xb05 on isa0
sio8: type 16550A (multiport)
sio9 at port 0x128-0x12f flags 0xb05 on isa0
sio9: type 16550A (multiport)
vga0: <Generic ISA VGA> at port 0x3c0-0x3df iomem 0xa0000-0xbffff on isa0
unknown: <PNP0401> can't assign resources (port)
unknown: <PNP0501> can't assign resources (port)
unknown: <PNP0501> can't assign resources (port)
unknown: <PNP0700> can't assign resources (port)
unknown: <PNP0c01> can't assign resources (memory)
unknown: <PNP0303> can't assign resources (port)
unknown: <PNP0c02> can't assign resources (port)
Timecounter "TSC" frequency 501138753 Hz quality 800
Timecounters tick every 10.000 msec
IP Filter: v4.1.8 initialized. Default = pass all, Logging = enabled
da0 at ahc0 bus 0 target 6 lun 0
da0: <IBM DNES-309170W SAK0> 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)
cd0 at ahc0 bus 0 target 4 lun 0
cd0: <PLEXTOR CD-ROM PX-40TS 1.10> Removable CD-ROM SCSI-2 device
cd0: 20.000MB/s transfers (20.000MHz, offset 15)
cd0: Attempt to query device size failed: NOT READY, Medium not present - tray closed
Trying to mount root from ufs:/dev/da0s1a
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