Date: Tue, 23 Nov 1999 02:42:59 -0600 (CST) From: Joe Greco <jgreco@ns.sol.net> To: hackers@freebsd.org Cc: wpaul@skynet.ctr.columbia.edu Subject: Serial console oddity Message-ID: <199911230842.CAA15655@aurora.sol.net>
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So, I've been doing serial consoles for a while and every so often, the
following pops up. Seems to happen on SMP machines. Don't recall if it
happens on non-SMP machines. This has happened for a _very_long_time_
(like since pre-3.0).
BIOS drive A: is disk0
BIOS drive C: is disk1
BIOS drive D: is disk2
BIOS drive E: is disk3
BIOS drive F: is disk4
BIOS drive G: is disk5
BIOS drive H: is disk6
BIOS drive I: is disk7
BIOS drive J: is disk8
FreeBSD/i386 bootstrap loader, Revision 0.7 640/65472kB
(jkh@highwing.cdrom.com, Thu Sep 16 22:16:41 GMT 1999)
|=08/=08-=08\=08|=08/=08-=08\=08|=08/=08-=08\=08|=08/=08-=08\=08|=08/=08-=
=08\=08|=08/=08-=08\=08|=08/=08-=08\=08|=08/=08-=08\=08|=08/=08-=08\=08|=08=
/=08-=08\=08|=08/=08Loading /boot/defaults/loader.conf=20
-=08\=08|=08/=08-=08\=08|=08/=08-=08\=08|=08/=08-=08\=08|=08/=08-=08\=08|=
=08/=08-=08\=08|=08/=08-=08\=08|=08/=08-=08\=08|=08/=08-=08\=08|=08/kernel =
text=3D0x10a418 /=08-=08\=08|=08/=08-=08\=08|=08/=08-=08\=08|=08/=08-=08\=
=08|=08/=08-=08\=08|=08/=08-=08\=08|=08/=08-=08\=08|=08/=08-=08\=08|=08/=08=
-=08\=08|=08/=08-=08\=08|=08/=08-=08\=08|=08/=08-=08\=08|=08/=08-=08\=08|=
=08/=08-=08\=08|=08/=08-=08\=08|=08/=08-=08\=08|=08/=08-=08\=08|=08/=08-=08=
\=08|=08/=08-=08\=08|=08/=08-=08\=08|=08/=08=
-=08\=08|=08/=08-=08\=08|=08/=08-=08\=08|=08/=08-=08\=08|=08/=08-=08\=08|=
=08/=08-=08\=08|=08/=08-=08\=08|=08/=08-=08\=08|=08/=08-=08\=08|=08/=08-=08=
\=08|=08/=08-=08\=08|=08/=08-=08\=08|=08/=08-=08\=08|=08/=08-=08data=3D0x17=
b48+0x1a97c \=08|=08/=08-=08\=08|=08/=08-=08\=08|=08/=08-=08syms=3D[0x4+0x1=
ee30\=08|=08/=08-=08\=08|=08/=08-=08\=08|=08/=08-=08\=08|=08/=08-=08+0x4+0x=
206b3\=08|=08/=08-=08\=08|=08/=08-=08\=08|=08/=08-=08\=08|=08/=08-=08]
\=08|=08/=08-=08\=08|=08/=08
Hit [Enter] to boot immediately, or any other key for command prompt.
Type '?' for a list of commands, 'help' for more detailed help.
boot: spool0-nwblwi.newsops.execpc.com > m=08 =08boot -s
Copyright (c) 1992-1999 FreeBSD Inc.
Copyright (c) 1982, 1986, 1989, 1991, 1993
The Regents of the University of California. All rights reserved.
FreeBSD 3.3-RELEASE #0: Mon Nov 22 13:38:07 CST 1999
root@host:/usr/src/sys/compile/DEMO
Timecounter "i8254" frequency 1193182 Hz
CPU: Pentium II/Xeon/Celeron (686-class CPU)
Origin =3D "GenuineIntel" Id =3D 0x652 Stepping =3D 2
Features=3D0x183fbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE=
,MCA,CMOV,PAT,PSE36,MMX,FXSR>
real memory =3D 536870912 (524288K bytes)
avail memory =3D 519716864 (507536K bytes)
Programming 24 pins in IOAPIC #0
FreeBSD/SMP: Multiprocessor motherboard
cpu0 (BSP): apic id: 1, version: 0x00040011, at 0xfee00000
cpu1 (AP): apic id: 0, version: 0x00040011, at 0xfee00000
io0 (APIC): apic id: 2, version: 0x00170011, at 0xfec00000
Preloaded elf kernel "kernel" at 0xc027e000.
Pentium Pro MTRR support enabled
Probing for devices on PCI bus 0:
chip0: <Intel 82443BX host to PCI bridge> rev 0x03 on pci0.0.0
chip1: <Intel 82443BX host to AGP bridge> rev 0x03 on pci0.1.0
chip2: <Intel 82371AB PCI to ISA bridge> rev 0x02 on pci0.4.0
chip3: <Intel 82371AB Power management controller> rev 0x02 on pci0.4.3
ahc0: <Adaptec aic7890/91 Ultra2 SCSI adapter> rev 0x00 int a irq 19 on pci=
0.6.0
ahc0: aic7890/91 Wide Channel A, SCSI Id=3D7, 16/255 SCBs
hfa0: <FORE Systems PCA-200E ATM> rev 0x00 int a irq 19 on pci0.9.0
chip4: <PCI to PCI bridge (vendor=3D1011 device=3D0024)> rev 0x03 on pci0.1=
0.0
ahc1: <Adaptec 2940 Ultra2 SCSI adapter> rev 0x00 int a irq 17 on pci0.11.0
ahc1: aic7890/91 Wide Channel A, SCSI Id=3D7, 16/255 SCBs
ahc2: <Adaptec 2940 Ultra SCSI adapter> rev 0x00 int a irq 16 on pci0.12.0
ahc2: aic7880 Wide Channel A, SCSI Id=3D7, 16/255 SCBs
Probing for devices on PCI bus 1:
Probing for devices on PCI bus 2:
de0: <Digital 21140A Fast Ethernet> rev 0x22 int a irq 18 on pci2.4.0
de0: SMC 9332BDT 21140A [10-100Mb/s] pass 2.2
de0: address 00:e0:29:3c:fb:84
de1: <Digital 21140A Fast Ethernet> rev 0x22 int a irq 19 on pci2.5.0
de1: SMC 9332BDT 21140A [10-100Mb/s] pass 2.2
de1: address 00:e0:29:3c:fb:85
Probing for PnP devices:
Probing for devices on the ISA bus:
sc0 on isa
sc0: VGA color <16 virtual consoles, flags=3D0x0>
atkbdc0 at 0x60-0x6f on motherboard
atkbd0 irq 1 on isa
psm0 not found
sio0 at 0x3f8-0x3ff irq 4 flags 0x10 on isa
sio0: type 16550A, console
sio1 at 0x2f8-0x2ff irq 3 on isa
sio1: type 16550A
sio2: configured irq 5 not in bitmap of probed irqs 0
sio2 not found at 0x3e8
sio3: configured irq 9 not in bitmap of probed irqs 0
sio3 not found at 0x2e8
fdc0 at 0x3f0-0x3f7 irq 6 drq 2 on isa
fdc0: FIFO enabled, 8 bytes threshold
fd0: 1.44MB 3.5in
vga0 at 0x3b0-0x3df maddr 0xa0000 msize 131072 on isa
npx0 on motherboard
npx0: INT 16 interface
we0 at 0x2e8 on isa
we0: kernel is keeping watchdog alive
APIC_IO: Testing 8254 interrupt delivery
APIC_IO: routing 8254 via pin 2
IP packet filtering initialized, divert disabled, rule-based forwarding dis=
abled, logging limited to 100 packets/entry by default
ccd0-15: Concatenated disk drivers
Waiting 2 seconds for SCSI devices to settle
SMP: AP CPU #1 Launched!
de0: enabling 100baseTX port
de1: enabling 100baseTX port
cda1 at ahc1 bus 0 target 0 lun 0
da1: <SEAGATE ST118273W 6244> Fixed Direct Access SCSI-2 device=20
da1: 40.000MB/s transfers (20.000MHz, offset 15, 16bit), Tagged Queueing En=
abled
da1: 17366MB (35566480 512 byte sectors: 255H 63S/T 2213C)
da4 at ahc1 bus 0 target 3 lun 0
da4: <SEAGATE ST118273W 6244> Fixed Direct Access SCSI-2 device=20
da4: 40.000MB/s transfers (20.000MHz, offset 15, 16bit), Tagged Queueing En=
abled
da4: 17366MB (35566480 512 byte sectors: 255H 63S/T 2213C)
da7 at ahc1 bus 0 target 6 lun 0
da7: <SEAGATE ST118273W 6244> Fixed Direct Access SCSI-2 device=20
da7: 40.000MB/s transfers (20.000MHz, offset 15, 16bit), Tagged Queueing En=
abled
da7: 17366MB (35566480 512 byte sectors: 255H 63S/T 2213C)
da10 at ahc2 bus 0 target 0 lun 0
da10: <SEAGATE ST118273W 6244> Fixed Direct Access SCSI-2 device=20
da10: 40.000MB/s transfers (20.000MHz, offset 8, 16bit), Tagged Queueing En=
abled
da10: 17366MB (35566480 512 byte sectors: 64H 32S/T 17366C)
da6 at ahc1 bus 0 target 5 lun 0
da6: <SEAGATE ST118273W 6244> Fixed Direct Access SCSI-2 device=20
da6: 40.000MB/s transfers (20.000MHz, offset 15, 16bit), Tagged Queueing En=
abled
da6: 17366MB (35566480 512 byte sectors: 255H 63S/T 2213C)
da13 at ahc2 bus 0 target 3 lun 0
da13: <SEAGATE ST118273W 6244> Fixed Direct Access SCSI-2 device=20
da13: 40.000MB/s transfers (20.000MHz, offset 8, 16bit), Tagged Queueing En=
abled
da13: 17366MB (35566480 512 byte sectors: 64H 32S/T 17366C)
da5 at ahc1 bus 0 target 4 lun 0
da5: <SEAGATE ST118273W 6244> Fixed Direct Access SCSI-2 device=20
da5: 40.000MB/s transfers (20.000MHz, offset 15, 16bit), Tagged Queueing En=
abled
da5: 17366MB (35566480 512 byte sectors: 255H 63S/T 2213C)
da16 at ahc2 bus 0 target 6 lun 0
da16: <SEAGATE ST118273W 6244> Fixed Direct Access SCSI-2 device=20
da16: 40.000MB/s transfers (20.000MHz, offset 8, 16bit), Tagged Queueing En=
abled
da16: 17366MB (35566480 512 byte sectors: 64H 32S/T 17366C)
da3 at ahc1 bus 0 target 2 lun 0
da3: <SEAGATE ST118273W 6244> Fixed Direct Access SCSI-2 device=20
da3: 40.000MB/s transfers (20.000MHz, offset 15, 16bit), Tagged Queueing En=
abled
da3: 17366MB (35566480 512 byte sectors: 255H 63S/T 2213C)
da15 at ahc2 bus 0 target 5 lun 0
da15: <SEAGATE ST118273W 6244> Fixed Direct Access SCSI-2 device=20
da15: 40.000MB/s transfers (20.000MHz, offset 8, 16bit), Tagged Queueing En=
abled
da15: 17366MB (35566480 512 byte sectors: 64H 32S/T 17366C)
da2 at ahc1 bus 0 target 1 lun 0
da2: <SEAGATE ST118273W 6244> Fixed Direct Access SCSI-2 device=20
da2: 40.000MB/s transfers (20.000MHz, offset 15, 16bit), Tagged Queueing En=
abled
da2: 17366MB (35566480 512 byte sectors: 255H 63S/T 2213C)
da14 at ahc2 bus 0 target 4 lun 0
da14: <SEAGATE ST118273W 6244> Fixed Direct Access SCSI-2 device=20
da14: 40.000MB/s transfers (20.000MHz, offset 8, 16bit), Tagged Queueing En=
abled
da14: 17366MB (35566480 512 byte sectors: 64H 32S/T 17366C)
da9 at ahc1 bus 0 target 9 lun 0
da9: <SEAGATE ST118273W 6244> Fixed Direct Access SCSI-2 device=20
da9: 40.000MB/s transfers (20.000MHz, offset 15, 16bit), Tagged Queueing En=
abled
da9: 17366MB (35566480 512 byte sectors: 255H 63S/T 2213C)
da8 at ahc1 bus 0 target 8 lun 0
da8: <SEAGATE ST118273W 6244> Fixed Direct Access SCSI-2 device=20
da8: 40.000MB/s transfers (20.000MHz, offset 15, 16bit), Tagged Queueing En=
abled
da8: 17366MB (35566480 512 byte sectors: 255H 63S/T 2213C)
da12 at ahc2 bus 0 target 2 lun 0
da12: <SEAGATE ST118273W 6244> Fixed Direct Access SCSI-2 device=20
da12: 40.000MB/s transfers (20.000MHz, offset 8, 16bit), Tagged Queueing En=
abled
da12: 17366MB (35566480 512 byte sectors: 64H 32S/T 17366C)
da11 at ahc2 bus 0 target 1 lun 0
da11: <SEAGATE ST118273W 6244> Fixed Direct Access SCSI-2 device=20
da11: 40.000MB/s transfers (20.000MHz, offset 8, 16bit), Tagged Queueing En=
abled
da11: 17366MB (35566480 512 byte sectors: 64H 32S/T 17366C)
da18 at ahc2 bus 0 target 9 lun 0
da18: <SEAGATE ST118273W 6244> Fixed Direct Access SCSI-2 device=20
da18: 40.000MB/s transfers (20.000MHz, offset 8, 16bit), Tagged Queueing En=
abled
da18: 17366MB (35566480 512 byte sectors: 64H 32S/T 17366C)
da17 at ahc2 bus 0 target 8 lun 0
da17: <SEAGATE ST118273W 6244> Fixed Direct Access SCSI-2 device=20
da17: 40.000MB/s transfers (20.000MHz, offset 8, 16bit), Tagged Queueing En=
abled
da17: 17366MB (35566480 512 byte sectors: 64H 32S/T 17366C)
da0 at ahc0 bus 0 target 0 lun 0
da0: <IBM DDRS-34560W S97B> Fixed Direct Access SCSI-2 device=20
da0: 40.000MB/s transfers (20.000MHz, offset 15, 16bit), Tagged Queueing En=
abled
da0: 4357MB (8925000 512 byte sectors: 255H 63S/T 555C)
hanging root device to da0s2a
WARNING: / was not properly dismounted
Enter full pathname of shell or RETURN for /bin/sh:=20
erase ^H, kill ^U, intr ^C
# fsck -p
mou/dev/rda0s2a: 5502 files, 21624 used, 137159 free (327 frags, 17104 bloc=
ks, 0.2% fragmentation)
nt -a
/dev/rda0s2h: 59 files, 95 used, 771980 free (36 frags, 96493 blocks, 0.0% =
fragmentation)
/dev/rda0s2e: 12345 files, 143748 used, 54651 free (8323 frags, 5791 blocks=
, 4.2% fragmentation)
/dev/rda0s2f: 880 files, 8264 used, 110791 free (39 frags, 13844 blocks, 0.=
0% fragmentation)
/dev/rda0s2g: 170 files, 1265 used, 1015038 free (158 frags, 126860 blocks,=
0.0% fragmentation)
# #=20
# sh /etc/netstart
Doing stage one network startup:
Doing initial network setup: hostname.
de0: enabling 100baseTX port
de0: enabling Full Duplex 100baseTX port
de0: flags=3D884@@@@@@@````=00=00=00=00=00=00=00=00=00=00=00=00=00=00=00ppp=
pp=00=00pp=00=00=00=00p=00`p=00=00=00=00=00=00@x=00=00=00xx=00x=00`=0C=00=
=00=18=0C=00=1Fp=00x=0C=00=00=00=00=00=00peT
de1: enabling Full Duplex 100baseTX port
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@=
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@=
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@=
@=00=00=00=00=00x=00=00px=00=00=00=00=00=00=00p=00=00=00=00@=00g=00=00=00=
=00=00=00p=00=00=00=00=00=00=00~=0C=00=00=00=00=00=00=00=00=00=00p=00@x=00=
=00x=00=00=00=00@=00=00=00=00=00=00=00x=00=00xx=00=00x=00=00=00=00xx=00=00=
=00@x=00=00=00=00=00=00=1Cp=00=00=00=00=00=00=00pp=00=00=00=00=00=00=00=00=
=00x=00=00=00=00=00xxx=00=00=00=00=00=00=1Cp=00=00=00=00=00=00=00=00=00=00`=
=00=00=00`xxx=00=00=00=00=00=00=00=00=00=00=00=00=00p=00=07=0C=00=00=00p=00=
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=00=00x=00|xx=00=00=00=00=00=00=00=00=1Cp=00=00=00=00=00=00x=00=00~=00~=00=
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=00=00x=00=00@=00=00=00`=00=00=00=00=00=00=00|=00@x=00~x=00|=00=00=00=00=00=
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=00x=00=00=00=00=00@=00`x=00=00=00x=00=00=00x=00=00`=00=00=00`=00x=00=00x=
=00=00=00=00=00@=00=00~x=00=00=00`=00=00=
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=00=00=00@=00=00=00@=00=00=00x=00=00=00=00@x=00=00=00x=00=00=00=00=00=00=00=
`x=00=00=00=00x=00=00=00=00=00=00`=00=00=00=00=00=00=00=00=00=00x=00=00=00=
=00`x=00=00=00=00x=00=00`=00=00=00@=00=00=00~=00@=00x=00=00=0F=00=00=00=00=
=00=00`=00=00=00=00=00=00=00=00=00|=00=00x=00=00=00=00=00=00x=00|x=00~=00=
=00=00=00x=00xx=00=00=00`x=00=00x=00=00=00=00|=00=00=00=00x=00=00=00=00=00=
=00=00=00@=00=00|x=00=00=00=00=00=00=00=00=00x=00=00=00x=00~=00=00=00=00=00=
=00=00=00=00=00=00=00x=00=00=00=00=00@=00=00|x=00=00=00|=00x=00|=00=00=00=
=00=00=00xx=00=00=00@=00=00=00=00=00=00=00xx=00=00=
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x=00=00=00=00=00=00=00`=00=00=00@=00=00=00@=00=00@x=00~=00=00x=00=00`=00=00=
=00=00=00=00=00=00=00=00=00=00=00`=00=00=00@=00=00=00@=00=00@x=00=00=00`=00=
x=00=00`=00=00=00=00=00=00@=00=00=00@=00=00=00@=00=00`=00x=00=00=00=00x=00=
=00=00x=00xx=00=00=00`x=00=00=00=00=00`=00=00=00=00x=00=00=00x=00=00@=00=00=
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=00=00=00=00=00=00=00=00@x=00=00=00=00x=00=00=
@=00=00=00x=00|=00=00=00=00=00=00=00=00=00x=00=00`=00=00=00=00=00=00`=00=00=
=00=00@x=00=00=00x=00|x=00|=00=00x=00=00=00=00=00xx=00=00=00=00=00=00=00=00=
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@=00=00=00x=00=00=00=00=00@=00=00|x=00=00=00=00=00x=00=00`=00=00=00`=00=00=
=00=00x=00=00=00`=00=00=00@=00=00=00x=00=00=00`x=00=00=00=00x=00=00=00=00=
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=00=00xx=00=00=00=00=00=00=00=00=00=00=
x=00|x=00|=00=00=00=00`=00=00=00=00=00=00=00=00=00=00=00=00=00@p=00=00=00=
=00=00=00=00p=00=00p=00=00=00=00=00=00=00=00=00~=00=00=00x=00|x=00=00=00=00=
=00=00x=00=00=00=00=00=00=00=00=00=00xx=00=00=00`x=00=00xx=00=00=00=00=00=
=00=00=00`x=19&=0B=00 =00=00w=00=00x=00=00px=00=00=00=00x=00=00xx=00=00=00x=
=00=00@=00=00=00=00xx=00=00=00@x=00=00x=00=00x=00|x=00|=00=00=00=00@=00=00|=
=00=00@=00=00=00=00=00=00=00=00=00=00=00x=00|x=00|=00=00=00=00x2=00=00=00=
=00x=00=00@=00=00=000x=00=00x=00=00=00xx=00=00=00=00=00=00=00.=00=00=00=00=
=00=00@=00xx=00|x=00|=00=00=00=00=00xx=00=00=00@x=00=00=00=00@=00=00=7F=00=
=00=00=7F=00=00=00@1=00=00=
=00x=00|x=00|=00=00=00=00=00@=00=00=00=00x=00=00=00=00=00=7F=00=00=00@=00x=
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=00x=00|x=00|=00x=00=00=00=00=00=00=00|x=00|x=00=00=00=00=00=00=00=00=00=7F=
=00=00=7Fx=00|x=00=00=00=00@xx=00=00=00x=00|x=00|=00=00|=00x=00|=00@=00x=00=
=00=00x=00|x=00|=00=00=00=00=00=00=00=00=00|x=00|x=00=00=00=00=00=00=00=00=
=7F=00=00=7Fx=00|x=00=00=00=00@x=00x=00@=00x=00=00=00x=00|x=00=00|x=00|=00@=
=00x=00=00=00x=00|x=00|=00=00=00=00=00=00|x=00|x=00=00=
=00=00=00=00=00=7F=00=00=7Fx=00|x=00=00=00=00@x=00=00x=00@=00x=00=00=00x=00=
|x=00=00|x=00=00@=00x=00=00=00x=00|x=00|=00=00=00=00=00=00=00=00=00=00=00=
=00|x=00|x=00=00=00=00=00=00=00=00=00=7F=00=00=00=00=00=00=00x=00@=00=00=00=
=00=00=00=00=00=00=00=00|x=00|x=00=00=00=00=00=00=00xarp: 169.207.30.1 is o=
n de0 but got reply fr=00:=00=00=00=00e:ef:40 on de1
=00=00x=00=00xxxxxxxxxarp: 169.207.30.1 is on de0 but got reply from 00:60:=
3e:7e:ef:40 on de1
ipfw: 951 Deny UDP 169.207.30.9:513 169.207.30.63:513 in via de1
arp: 169.207.30.1 is on de0 but got reply from 00:60:3e:7e:ef:40 on de1
ipfw: 951 Deny UDP 169.207.30.4:513 169.207.30.63:513 in via de1
Now, this doesn't show it real good, but the basic thing is that when the
ifconfig runs, it seems to somehow mess up the serial console. Userland
I/O is messed up, although kernel output remains OK. A "stty -a" while it
is messed up (from a shell script) does not reveal anything different than
the settings that exist while things are OK. If the system gets to multi-
user mode, and brings up a getty on ttyd0, then it corrects itself at the
point where it starts spitting out the banner. Up to then, all I see are
kernel messages, and garbage where userland stuff is spitting up output.
How in the world do I even figure out the next debugging step? :-)
... Joe
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Joe Greco - Systems Administrator jgreco@ns.sol.net
Solaria Public Access UNIX - Milwaukee, WI 414/342-4847
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