Date: Mon, 13 Nov 2000 19:56:23 -0800 (PST) From: "Thomas D. Dean" <tomdean@ix.netcom.com> To: current@FreeBSD.ORG, jhb@FreeBSD.ORG Subject: Re: sio patch to use mutexes Message-ID: <200011140356.eAE3uNd00390@ix.netcom.com> In-Reply-To: <XFMail.001103165548.jhb@FreeBSD.org> (message from John Baldwin on Fri, 03 Nov 2000 16:55:48 -0800 (PST)) References: <XFMail.001103165548.jhb@FreeBSD.org>
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I am seeing lots of silo overflows in -current SMP.
#uname -a
FreeBSD celebris 5.0-CURRENT FreeBSD 5.0-CURRENT #2: \
Mon Nov 13 19:31:49 PST 2000 \
root@celebris:/usr/src/sys/compile/CELEBRIS-SMP i386
I this is not related to the recent patch for conversion to mutex. I
tried both ways.
I don't know when the problem started, I have been using another
machine to run ppp, and just switched back to this one. I am sure it
started late this year. I have messages going back to Apr 7 2000.
There were no silo overflows early this year, around Jan and Feb.
Same ISP, same setup.
I saw one silo overflow in July. But, I don't know how much I ran ppp
during that time.
During the past 10 minutes, I saw 43.
I have attached dmesg.
I am running ppp via tun to my ISP at 56k. I see throughput at near
that, when ftp'ing large files. The serial port is set to 115200.
tomdean
=== part of ppp.conf =========
set device /dev/cuaa0
set speed 115200
set parity none
set timeout 0
disable lqr
deny lqr
...
=== dmesg =================
Copyright (c) 1992-2000 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 5.0-CURRENT #2: Mon Nov 13 19:31:49 PST 2000
root@celebris:/usr/src/sys/compile/CELEBRIS-SMP
Timecounter "i8254" frequency 1193182 Hz
CPU: Pentium/P54C (128.01-MHz 586-class CPU)
Origin = "GenuineIntel" Id = 0x525 Stepping = 5
Features=0x3bf<FPU,VME,DE,PSE,TSC,MSR,MCE,CX8,APIC>
real memory = 100663296 (98304K bytes)
avail memory = 94744576 (92524K bytes)
Programming 16 pins in IOAPIC #0
IOAPIC #0 intpin 2 -> irq 0
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: 0x000f0011, at 0xfec00000
Preloaded elf kernel "kernel" at 0xc0313000.
Preloaded userconfig_script "/boot/kernel.conf" at 0xc031309c.
Intel Pentium detected, installing workaround for F00F bug
npx0: <math processor> on motherboard
npx0: INT 16 interface
pcib0: <Host to PCI bridge> at pcibus 0 on motherboard
pci0: <PCI bus> on pcib0
ncr0: <ncr 53c810 fast10 scsi> port 0xec00-0xecff mem 0xfedfbf00-0xfedfbfff irq 11 at device 1.0 on pci0
isab0: <Intel 82378IB PCI to ISA bridge> at device 2.0 on pci0
isa0: <ISA bus> on isab0
pci0: <Matrox MGA Millennium 2064W graphics accelerator> at 6.0 irq 9
de0: <Digital 21041 Ethernet> port 0xe880-0xe8ff mem 0xfedfbe80-0xfedfbeff irq 10 at device 8.0 on pci0
de0: DEC DE450-CA 21041 [10Mb/s] pass 1.1
de0: address 00:00:f8:02:76:db
atkbdc0: <Keyboard controller (i8042)> at port 0x60,0x64 on isa0
atkbd0: <AT Keyboard> irq 1 on atkbdc0
psm0: <PS/2 Mouse> irq 12 on atkbdc0
psm0: model Generic PS/2 mouse, device ID 0
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
ppc0: <Parallel port> at port 0x378-0x37f irq 7 on isa0
ppc0: Generic chipset (NIBBLE-only) in COMPATIBLE mode
lpt0: <Printer> on ppbus0
lpt0: Interrupt-driven port
sc0: <System console> on isa0
sc0: VGA <16 virtual consoles, flags=0x200>
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
vga0: <Generic ISA VGA> at port 0x3c0-0x3df iomem 0xa0000-0xbffff on isa0
unknown: <IBM Enhanced (101/102-key) KC> can't assign resources
unknown: <Microsoft PS/2 Mouse> can't assign resources
unknown: <16550 compatible COM device> can't assign resources
unknown: <16550 compatible COM device> can't assign resources
unknown: <LPT printer port> can't assign resources
unknown: <Floppy Controller> can't assign resources
APIC_IO: Testing 8254 interrupt delivery
APIC_IO: routing 8254 via IOAPIC #0 intpin 2
Waiting 10 seconds for SCSI devices to settle
Mounting root from ufs:/dev/da1s1a
da0 at ncr0 bus 0 target 0 lun 0
da0: <QUANTUM FIREBALL1080S 1Q09> Fixed Direct Access SCSI-2 device
da0: 10.000MB/s transfers (10.000MHz, offset 8)
da0: 1042MB (2134305 512 byte sectors: 255H 63S/T 132C)
cd0 at ncr0 bus 0 target 5 lun 0
cd0: <TOSHIBA CD-ROM XM-5401TA 3605> Removable CD-ROM SCSI-2 device
cd0: 4.237MB/s transfers (4.237MHz, offset 8)
cd0: cd present [329507 x 2048 byte records]
da2 at ncr0 bus 0 target 2 lun 0
da2: <QUANTUM FIREBALL ST3.2S 0F0C> Fixed Direct Access SCSI-2 device
da2: 10.000MB/s transfers (10.000MHz, offset 8), Tagged Queueing Enabled
da2: 3090MB (6328861 512 byte sectors: 255H 63S/T 393C)
da1 at ncr0 bus 0 target 1 lun 0
da1: <IBM DNES-309170 SAH0> Fixed Direct Access SCSI-3 device
da1: 10.000MB/s transfers (10.000MHz, offset 8), Tagged Queueing Enabled
da1: 8748MB (17916240 512 byte sectors: 255H 63S/T 1115C)
SMP: AP CPU #1 Launched!
de0: enabling BNC port
sio0: 1 more silo overflow (total 1)
sio0: 2 more silo overflows (total 3)
sio0: 1 more silo overflow (total 4)
sio0: 2 more silo overflows (total 6)
sio0: 1 more silo overflow (total 7)
sio0: 2 more silo overflows (total 9)
sio0: 3 more silo overflows (total 12)
sio0: 2 more silo overflows (total 14)
sio0: 1 more silo overflow (total 15)
sio0: 1 more silo overflow (total 16)
sio0: 1 more silo overflow (total 17)
sio0: 1 more silo overflow (total 18)
sio0: 1 more silo overflow (total 19)
sio0: 1 more silo overflow (total 20)
sio0: 2 more silo overflows (total 22)
sio0: 1 more silo overflow (total 23)
sio0: 1 more silo overflow (total 24)
sio0: 1 more silo overflow (total 25)
sio0: 1 more silo overflow (total 26)
sio0: 1 more silo overflow (total 27)
sio0: 1 more silo overflow (total 28)
sio0: 1 more silo overflow (total 29)
sio0: 1 more silo overflow (total 30)
sio0: 1 more silo overflow (total 31)
sio0: 1 more silo overflow (total 32)
sio0: 1 more silo overflow (total 33)
sio0: 1 more silo overflow (total 34)
sio0: 1 more silo overflow (total 35)
sio0: 1 more silo overflow (total 36)
sio0: 3 more silo overflows (total 39)
sio0: 1 more silo overflow (total 40)
sio0: 1 more silo overflow (total 41)
sio0: 2 more silo overflows (total 43)
sio0: 2 more silo overflows (total 45)
sio0: 5 more silo overflows (total 50)
sio0: 1 more silo overflow (total 51)
sio0: 1 more silo overflow (total 52)
sio0: 1 more silo overflow (total 53)
sio0: 1 more silo overflow (total 54)
sio0: 1 more silo overflow (total 55)
sio0: 1 more silo overflow (total 56)
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