Date: Thu, 14 May 1998 15:03:22 +0200 (CEST) From: Andre Albsmeier <andre.albsmeier@mchp.siemens.de> To: FreeBSD-gnats-submit@FreeBSD.ORG Subject: kern/6633: buffer in sys/sys/msgbuf.h became rather small Message-ID: <199805141303.PAA16254@internal>
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>Number: 6633
>Category: kern
>Synopsis: buffer in sys/sys/msgbuf.h became rather small
>Confidential: no
>Severity: non-critical
>Priority: medium
>Responsible: freebsd-bugs
>State: open
>Quarter:
>Keywords:
>Date-Required:
>Class: change-request
>Submitter-Id: current-users
>Arrival-Date: Thu May 14 06:10:01 PDT 1998
>Last-Modified:
>Originator: Andre Albsmeier
>Organization:
>Release: FreeBSD 2.2.6-STABLE i386
>Environment:
my (and probably many other) 2.2-STABLE and -CURRENT systems
>Description:
Since FreeBSD is the ideal platform for highend servers (as we
know for sure :-)), it is obviuos to plug a lot of hardware in it.
When booting verbose, the kernel internal dmesg buffer is often
far to small to keep all of the boot messages. This becomes a
little problematic when you want to see the messages for diagnostic
purposes.
>How-To-Repeat:
Boot a machine with lots of hardware in verbose mode, e.g. this
one has 12k:
Copyright (c) 1992-1998 FreeBSD Inc.
Copyright (c) 1982, 1986, 1989, 1991, 1993
The Regents of the University of California. All rights reserved.
FreeBSD 2.2.6-STABLE #0: Fri Apr 3 19:00:08 CEST 1998
root@bali.us.tld:/src/src-2.2/sys/compile/SERVER
Calibrating clock(s) ... i586 clock: 199449597 Hz, i8254 clock: 1193290 Hz
CPU: Pentium (199.45-MHz 586-class CPU)
Origin = "GenuineIntel" Id = 0x52c Stepping=12
Features=0x1bf<FPU,VME,DE,PSE,TSC,MSR,MCE,CX8>
real memory = 67108864 (65536K bytes)
Physical memory chunk(s):
0x00001000 - 0x0009ffff, 651264 bytes (159 pages)
0x0020e000 - 0x03ffbfff, 64937984 bytes (15854 pages)
avail memory = 63729664 (62236K bytes)
pcibus_setup(1): mode 1 addr port (0x0cf8) is 0x8000005c
pcibus_setup(1a): mode1res=0x80000000 (0x80000000)
pcibus_check: device 0 is there (id=12508086)
Probing for devices on PCI bus 0:
configuration mode 1 allows 32 devices.
chip0 <Intel 82439> rev 3 on pci0:0:0
chip1 <Intel 82371SB PCI-ISA bridge> rev 1 on pci0:7:0
I/O Recovery Timing: 8-bit 3 clocks, 16-bit 2 clocks
Extended BIOS: disabled
Lower BIOS: disabled
Coprocessor IRQ13: enabled
Mouse IRQ12: disabled
Interrupt Routing: A: IRQ15, B: IRQ11, C: IRQ10, D: IRQ9
MB0: disabled, MB1:
chip2 <Intel 82371SB IDE interface> rev 0 on pci0:7:1
mapreg[20] type=1 addr=0000f000 size=0010.
Primary IDE: disabled
Secondary IDE: disabled
ahc0 <Adaptec 2940 Ultra SCSI host adapter> rev 0 int a irq 15 on pci0:13:0
mapreg[10] type=1 addr=00006000 size=0100.
mapreg[14] type=0 addr=e0000000 size=1000.
reg20: virtual=0xf4d9d000 physical=0xe0000000 size=0x1000
ahc0: Reading SEEPROM...done.
low byte termination enabled, high byte termination enabled
ahc0: aic7880 Single Channel, SCSI Id=7, 16 SCBs
ahc0: Resetting Channel A
ahc0: Downloading Sequencer Program...ahc0: 373 instructions downloaded
Done
ahc0: Probing channel A
Choosing drivers for scbus configured at 0
ahc0: target 0 synchronous at 10.0MHz, offset = 0xf
ahc0: target 0 Tagged Queuing Device
(ahc0:0:0): "IBM DPES-31080 S31Q" type 0 fixed SCSI 2
sd is configured at 0
sd0(ahc0:0:0): Direct-Access 1034MB (2118144 512 byte sectors)
sd0(ahc0:0:0): with 4903 cyls, 4 heads, and an average 108 sectors/track
ahc0: target 1 synchronous at 10.0MHz, offset = 0xf
ahc0: target 1 Tagged Queuing Device
(ahc0:1:0): "Quantum XP34300 L915" type 0 fixed SCSI 2
sd is configured at 1
sd1(ahc0:1:0): Direct-Access 4101MB (8399520 512 byte sectors)
sd1(ahc0:1:0): with 3907 cyls, 20 heads, and an average 107 sectors/track
ahc0: target 2 synchronous at 10.0MHz, offset = 0xf
ahc0: target 2 Tagged Queuing Device
(ahc0:2:0): "Quantum XP34300 L915" type 0 fixed SCSI 2
sd is configured at 2
sd2(ahc0:2:0): Direct-Access 4101MB (8399520 512 byte sectors)
sd2(ahc0:2:0): with 3907 cyls, 20 heads, and an average 107 sectors/track
ahc0: target 3 synchronous at 20.0MHz, offset = 0xf
ahc0: target 3 Tagged Queuing Device
(ahc0:3:0): "QUANTUM XP39100S LXY4" type 0 fixed SCSI 2
sd is configured at 3
sd3(ahc0:3:0): Direct-Access 8682MB (17781520 512 byte sectors)
sd3(ahc0:3:0): with 5899 cyls, 20 heads, and an average 150 sectors/track
ahc0: target 4 synchronous at 20.0MHz, offset = 0xf
ahc0: target 4 Tagged Queuing Device
(ahc0:4:0): "QUANTUM XP39100S LXY4" type 0 fixed SCSI 2
sd is configured at 4
sd4(ahc0:4:0): Direct-Access 8682MB (17781520 512 byte sectors)
sd4(ahc0:4:0): with 5899 cyls, 20 heads, and an average 150 sectors/track
ahc1 <Adaptec 2940 Ultra SCSI host adapter> rev 0 int a irq 11 on pci0:14:0
mapreg[10] type=1 addr=00006400 size=0100.
mapreg[14] type=0 addr=e0001000 size=1000.
reg20: virtual=0xf4d9e000 physical=0xe0001000 size=0x1000
ahc1: Reading SEEPROM...done.
low byte termination enabled, high byte termination enabled
ahc1: aic7880 Single Channel, SCSI Id=7, 16 SCBs
ahc1: Resetting Channel A
ahc1: Downloading Sequencer Program...ahc1: 373 instructions downloaded
Done
ahc1: Probing channel A
Choosing drivers for scbus configured at 1
ahc1: target 0 synchronous at 4.4MHz, offset = 0xf
(ahc1:0:0): "IMPRIMIS 94601-15 4202" type 0 fixed SCSI 1
sd is configured at 10
sd10(ahc1:0:0): Direct-Access 992MB (2031705 512 byte sectors)
sd10(ahc1:0:0): with 1931 cyls, 15 heads, and an average 70 sectors/track
ahc1: target 1 synchronous at 4.4MHz, offset = 0xf
(ahc1:1:0): "IMPRIMIS 94601-15 4202" type 0 fixed SCSI 1
sd is configured at 11
sd11(ahc1:1:0): Direct-Access 992MB (2031705 512 byte sectors)
sd11(ahc1:1:0): with 1931 cyls, 15 heads, and an average 70 sectors/track
ahc1: target 2 synchronous at 4.4MHz, offset = 0xf
(ahc1:2:0): "IMPRIMIS 94601-15 1296" type 0 fixed SCSI 1
sd is configured at 12
sd12(ahc1:2:0): Direct-Access 989MB (2026965 512 byte sectors)
sd12(ahc1:2:0): with 1931 cyls, 15 heads, and an average 69 sectors/track
ahc1: target 3 synchronous at 5.0MHz, offset = 0xf
ahc1: target 3 Tagged Queuing Device
(ahc1:3:0): "SEAGATE ST41650 6414" type 0 fixed SCSI 2
sd is configured at 13
sd13(ahc1:3:0): Direct-Access 1350MB (2766300 512 byte sectors)
sd13(ahc1:3:0): with 2107 cyls, 15 heads, and an average 87 sectors/track
ahc1: target 4 synchronous at 10.0MHz, offset = 0xf
ahc1: target 4 Tagged Queuing Device
(ahc1:4:0): "SEAGATE ST42400N 0116" type 0 fixed SCSI 2
sd is configured at 14
sd14(ahc1:4:0): Direct-Access 2030MB (4159462 512 byte sectors)
sd14(ahc1:4:0): with 2626 cyls, 19 heads, and an average 83 sectors/track
ahc1: target 5 synchronous at 10.0MHz, offset = 0xf
ahc1: target 5 Tagged Queuing Device
(ahc1:5:0): "SEAGATE ST15230N 0298" type 0 fixed SCSI 2
sd is configured at 15
sd15(ahc1:5:0): Direct-Access 4095MB (8386733 512 byte sectors)
sd15(ahc1:5:0): with 3992 cyls, 19 heads, and an average 110 sectors/track
ahc1: target 6 synchronous at 10.0MHz, offset = 0xf
ahc1: target 6 Tagged Queuing Device
(ahc1:6:0): "SEAGATE ST15230N 0298" type 0 fixed SCSI 2
sd is configured at 16
sd16(ahc1:6:0): Direct-Access 4095MB (8386733 512 byte sectors)
sd16(ahc1:6:0): with 3992 cyls, 19 heads, and an average 110 sectors/track
ahc2 <Adaptec 2940 Ultra SCSI host adapter> rev 0 int a irq 10 on pci0:15:0
mapreg[10] type=1 addr=00006800 size=0100.
mapreg[14] type=0 addr=e0002000 size=1000.
reg20: virtual=0xf4d9f000 physical=0xe0002000 size=0x1000
ahc2: Reading SEEPROM...done.
low byte termination disabled, high byte termination enabled
ahc2: aic7880 Single Channel, SCSI Id=7, 16 SCBs
ahc2: Resetting Channel A
ahc2: Downloading Sequencer Program...ahc2: 373 instructions downloaded
Done
ahc2: Probing channel A
Choosing drivers for scbus configured at 2
ahc2: target 0 synchronous at 20.0MHz, offset = 0xf
ahc2: target 0 Tagged Queuing Device
(ahc2:0:0): "SEAGATE ST423451N 0011" type 0 fixed SCSI 2
sd is configured at 20
sd20(ahc2:0:0): Direct-Access 22130MB (45322644 512 byte sectors)
sd20(ahc2:0:0): with 6876 cyls, 28 heads, and an average 235 sectors/track
ahc2: target 3 synchronous at 5.0MHz, offset = 0xf
(ahc2:3:0): "DEC DLT2700 8525" type 1 removable SCSI 2
st is configured at 0
st0(ahc2:3:0): Sequential-Access density code 0x19, drive empty
(ahc2:3:1): "DEC TZ Media Changer 8525" type 8 removable SCSI 2
ch is configured at 0
ch0(ahc2:3:1): Medium-Changer 7 slots, 1 drive, 1 picker
ch0: move mask: 0x0 0x8 0x0 0x2
ch0: exchange mask: 0x0 0x0 0x0 0x0
ahc2: target 4 synchronous at 5.0MHz, offset = 0x8
(ahc2:4:0): "HP HP35480A 1109" type 1 removable SCSI 2
st is configured at 1
st1(ahc2:4:0): Sequential-Access density code 0x13, drive empty
ahc2: target 6 synchronous at 8.0MHz, offset = 0xf
(ahc2:6:0): "NEC CD-ROM DRIVE:502 2.0r" type 5 removable SCSI 2
cd is configured at 0
cd0(ahc2:6:0): CD-ROM can't get the size
chip3 <DEC 21050 PCI-PCI bridge> rev 2 on pci0:16:0
bridge from pci0 to pci1 through 1.
mapping regs: io:2280e0e0 mem:dff0dc00 pmem:bff0bc00
pci0: uses 12288 bytes of memory from bc000000 upto e0002fff.
pci0: uses 784 bytes of I/O space from 6000 upto f00f.
pci0: subordinate busses from 1 upto 1.
Probing for devices on PCI bus 1:
de0 <Digital 21040 Ethernet> rev 36 int a irq 9 on pci1:4:0
mapreg[10] type=1 addr=0000e000 size=0080.
[pci1 uses memory from dc000000 to dfffffff]
mapreg[14] type=0 addr=dd000000 size=0080.
reg16: ioaddr=0xe000 size=0x80
de0: SMC 8434BT-CH1 21040 [10Mb/s] pass 2.4
de0: address 00:00:c0:ba:73:e0
bpf: de0 attached
de1 <Digital 21040 Ethernet> rev 36 int a irq 15 on pci1:5:0
mapreg[10] type=1 addr=0000e400 size=0080.
[pci1 uses memory from dc000000 to dfffffff]
mapreg[14] type=0 addr=dd001000 size=0080.
reg16: ioaddr=0xe400 size=0x80
using shared irq 15.
de1: SMC 8434BT-CH2 21040 [10Mb/s] pass 2.4
de1: address 00:00:c0:81:78:e0
bpf: de1 attached
pci1: uses 256 bytes of memory from dd000000 upto dd00107f.
pci1: uses 256 bytes of I/O space from e000 upto e47f.
Initializing PnP override table
Probing for PnP devices:
Trying Read_Port at 203
Trying Read_Port at 243
Trying Read_Port at 283
Trying Read_Port at 2c3
Trying Read_Port at 303
Trying Read_Port at 343
Trying Read_Port at 383
Trying Read_Port at 3c3
No Plug-n-Play devices were found
Probing for devices on the ISA bus:
sc0: the current keyboard controller command byte 0065
kbdio: DIAGNOSE status:0055
kbdio: TEST_KBD_PORT status:0000
kbdio: RESET_KBD return code:00fa
kbdio: RESET_KBD status:00aa
sc0 at 0x60-0x6f irq 1 on motherboard
sc0: BIOS video mode:3
sc0: VGA registers upon power-up
50 18 10 00 10 00 03 00 02 67 5f 4f 50 82 55 81
bf 1f 00 4f 0e 0f 00 00 07 80 9c 8e 8f 28 1f 96
b9 a3 ff 00 01 02 03 04 05 14 07 38 39 3a 3b 3c
3d 3e 3f 0c 00 0f 08 00 00 00 00 00 10 0e 00 ff
sc0: video mode:24
sc0: VGA registers in BIOS for mode:24
50 18 10 00 10 00 03 00 02 67 5f 4f 50 82 55 81
bf 1f 00 4f 0d 0e 00 00 00 00 9c 8e 8f 28 1f 96
b9 a3 ff 00 01 02 03 04 05 14 07 38 39 3a 3b 3c
3d 3e 3f 0c 00 0f 08 00 00 00 00 00 10 0e 00 ff
sc0: VGA registers to be used for mode:24
50 18 10 00 10 00 03 00 02 67 5f 4f 50 82 55 81
bf 1f 00 4f 0d 0e 00 00 00 00 9c 8e 8f 28 1f 96
b9 a3 ff 00 01 02 03 04 05 14 07 38 39 3a 3b 3c
3d 3e 3f 0c 00 0f 08 00 00 00 00 00 10 0e 00 ff
sc0: rows_offset:1
sc0: VGA color <9 virtual consoles, flags=0x0>
ed0 at 0x240-0x25f irq 5 maddr 0xd8000 msize 8192 on isa
ed0: address 00:00:c0:0f:aa:dd, type SMC8416C/SMC8416BT (16 bit)
bpf: ed0 attached
lpt0 at 0x378-0x37f irq 7 on isa
lpt0: Interrupt-driven port
lp0: TCP/IP capable interface
bpf: lp0 attached
sio0 at 0x3f8-0x3ff irq 4 on isa
sio0: type 16550A
sio1 at 0x2f8-0x2ff irq 3 on isa
sio1: type 16550A
pca0 on motherboard
pca0: PC speaker audio driver
fdc0 at 0x3f0-0x3f7 irq 6 drq 2 on isa
fdc0: FIFO enabled, 8 bytes threshold
fd0: 1.44MB 3.5in
npx0 flags 0x1 on motherboard
npx0: INT 16 interface
imasks: bio c0008c40, tty c003009a, net c0028220
BIOS Geometries:
0:0082fe3f 0..130=131 cylinders, 0..254=255 heads, 1..63=63 sectors
1:0209fe3f 0..521=522 cylinders, 0..254=255 heads, 1..63=63 sectors
2:0209fe3f 0..521=522 cylinders, 0..254=255 heads, 1..63=63 sectors
3:03fefe3f 0..1022=1023 cylinders, 0..254=255 heads, 1..63=63 sectors
4:03fefe3f 0..1022=1023 cylinders, 0..254=255 heads, 1..63=63 sectors
5:03df3f20 0..991=992 cylinders, 0..63=64 heads, 1..32=32 sectors
6:03df3f20 0..991=992 cylinders, 0..63=64 heads, 1..32=32 sectors
7:03dc3f20 0..988=989 cylinders, 0..63=64 heads, 1..32=32 sectors
0 accounted for
Device configuration finished.
Considering FFS root f/s.
configure() finished.
Intel Pentium F00F detected, installing workaround
bpf: lo0 attached
ccd0-3: Concatenated disk drivers
sd0s1: type 0xa5, start 0, end = 2118143, size 2118144 : OK
sd3s1: type 0xa5, start 0, end = 17781519, size 17781520 : OK
sd4s1: type 0xa5, start 0, end = 17781519, size 17781520 : OK
sd20s1: type 0xa5, start 0, end = 45322643, size 45322644 : OK
sd20s1: type 0xa5, start 0, end = 45322643, size 45322644 : OK
de0: enabling AUI/BNC port
de1: enabling AUI/BNC port
ed0: promiscuous mode enabled
de0: promiscuous mode enabled
de1: promiscuous mode enabled
>Fix:
quite simple:
*** msgbuf.h.ORI Thu May 14 14:50:57 1998
--- msgbuf.h Thu May 14 14:51:26 1998
***************
*** 37,43 ****
#ifndef _SYS_MSGBUF_H_
#define _SYS_MSGBUF_H_
! #define MSG_BSIZE (8192 - 3 * sizeof(unsigned int))
struct msgbuf {
#define MSG_MAGIC 0x063061
unsigned int msg_magic;
--- 37,43 ----
#ifndef _SYS_MSGBUF_H_
#define _SYS_MSGBUF_H_
! #define MSG_BSIZE (16384 - 3 * sizeof(unsigned int))
struct msgbuf {
#define MSG_MAGIC 0x063061
unsigned int msg_magic;
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