Date: Wed, 27 Sep 2000 17:43:35 -0400 (EDT) From: Zhiui Zhang <zzhang@cs.binghamton.edu> To: freebsd-hackers@freebsd.org Subject: system hangs with BUS Reset Message-ID: <Pine.SOL.4.21.0009271722310.14611-100000@opal>
next in thread | raw e-mail | index | archive | help
I am debugging a program that does a lot of disk I/O and the system hangs
briefly with the some repeated messages that looks like:
(da0:ahc0:0:0:0): SCB 0x0 - Timed out in Data-in phase, SEQADDR==0x88
(da0:ahc0:0:0:0): BDR message in message buffer
(da0:ahc0:0:0:0): SCB 0x0 - Timed out in Data-in phase, SEQADDR==0x89
(da0:ahc0:0:0:0): no longer in timeout, status= 34b
ahc0: Issued Channel A Bus Reset. 2SCBs aborted.
What should I do now? The following is my dmesg output:
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 4.1-RELEASE #0: Tue Sep 26 01:34:11 GMT 2000
root@mercury.cs.binghamton.edu:/usr/src/sys/compile/SUNYFS
Timecounter "i8254" frequency 1193182 Hz
CPU: Pentium III/Pentium III Xeon/Celeron (501.14-MHz 686-class CPU)
Origin = "GenuineIntel" Id = 0x673 Stepping = 3
Features=0x383fbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,MMX,FXSR,XMM>
real memory = 134205440 (131060K bytes)
avail memory = 126341120 (123380K bytes)
Preloaded elf kernel "kernel" at 0xc0419000.
Pentium Pro MTRR support enabled
md0: Malloc disk
npx0: <math processor> on motherboard
npx0: INT 16 interface
pcib0: <Intel 82443BX (440 BX) host to PCI bridge> on motherboard
pci0: <PCI bus> on pcib0
pcib1: <Intel 82443BX (440 BX) PCI-PCI (AGP) bridge> at device 1.0 on pci0
pci1: <PCI bus> on pcib1
isab0: <Intel 82371AB PCI to ISA bridge> at device 4.0 on pci0
isa0: <ISA bus> on isab0
atapci0: <Intel PIIX4 ATA33 controller> port 0xd800-0xd80f at device 4.1 on pci0
ata0: at 0x1f0 irq 14 on atapci0
uhci0: <Intel 82371AB/EB (PIIX4) USB controller> port 0xd400-0xd41f irq 10 at device 4.2 on pci0
usb0: <Intel 82371AB/EB (PIIX4) USB controller> on uhci0
usb0: USB revision 1.0
uhub0: Intel UHCI root hub, class 9/0, rev 1.00/1.00, addr 1
uhub0: 2 ports with 2 removable, self powered
uhub0: port 1 power on failed, IOERROR
uhub0: port 2 power on failed, IOERROR
chip1: <Intel 82371AB Power management controller> port 0xe800-0xe80f at device 4.3 on pci0
ahc0: <Adaptec aic7890/91 Ultra2 SCSI adapter> port 0xd000-0xd0ff mem 0xe3000000-0xe3000fff irq 10 at device 6.0 on pci0
ahc0: aic7890/91 Wide Channel A, SCSI Id=7, 16/255 SCBs
dc0: <LC82C115 PNIC II 10/100BaseTX> port 0xb800-0xb8ff mem 0xe2800000-0xe28000ff irq 11 at device 10.0 on pci0
dc0: Ethernet address: 00:a0:cc:e4:b7:14
miibus0: <MII bus> on dc0
dcphy0: <Intel 21143 NWAY media interface> on miibus0
dcphy0: 10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto
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> flags 0x1 irq 1 on atkbdc0
kbd0 at atkbd0
vga0: <Generic ISA VGA> at port 0x3c0-0x3df iomem 0xa0000-0xbffff on isa0
sc0: <System console> at flags 0x100 on isa0
sc0: VGA <16 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
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
ppi0: <Parallel I/O> on ppbus0
lpt0: <Printer> on ppbus0
lpt0: Interrupt-driven port
plip0: <PLIP network interface> on ppbus0
ata0-slave: ata_command: timeout waiting for intr
ata0-slave: identify failed
acd0: CDROM <CD-540E> at ata0-master using PIO4
Waiting 15 seconds for SCSI devices to settle
Mounting root from ufs:/dev/da0s1a
da0 at ahc0 bus 0 target 0 lun 0
da0: <SEAGATE ST39140LW 1500> Fixed Direct Access SCSI-2 device
da0: 80.000MB/s transfers (40.000MHz, offset 15, 16bit), Tagged Queueing Enabled
da0: 8683MB (17783240 512 byte sectors: 255H 63S/T 1106C)
WARNING: / was not properly dismounted
Any help is appreciated.
-Zhihui
To Unsubscribe: send mail to majordomo@FreeBSD.org
with "unsubscribe freebsd-hackers" in the body of the message
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?Pine.SOL.4.21.0009271722310.14611-100000>