From owner-freebsd-questions  Tue Sep  7  9: 7: 0 1999
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Date: Tue, 7 Sep 1999 19:05:36 +0300 (EEST)
Message-Id: <199909071605.TAA02860@atlas.dnt.md>
From: "Decebal Topala" <decebal@mail.md>
To: questions@freebsd.org
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Hi 

I used an script to ping all ip addresses in my ocal ip subnet.
I was very slow. In order to make this faster i put ping process in 
baground. After 15 second system is dumpimg.

Here is the script 
#################################################################
#!/bin/sh -x
class_c=0
class_b=0
subnet=172.16
count=2
while [ ${class_b} != 255 ]
do 
class_c=0

while [ ${class_c} != 255 ]
do 
ping  -c ${count} ${subnet}.${class_b}.${class_c} &
	class_c=$((${class_c}+1))
	echo ${class_b}.${class_c}
done

class_b=$((${class_b}+1))
done 
#####################################################
And here is my kernel config file.

################################################################


machine         "i386"
cpu             "I686_CPU"
ident           fire
maxusers        500
options         "MAXDSIZ=(256*1024*1024)"
options         "DFLDSIZ=(256*1024*1024)"
options         MATH_EMULATE            #Support for x87 emulation
options         INET                    #InterNETworking
options         FFS                     #Berkeley Fast Filesystem
options         FFS_ROOT                #FFS usable as root device [keep this!]
options         MSDOSFS                 #MSDOS Filesystem
options         "CD9660"                #ISO 9660 Filesystem
options         "CD9660_ROOT"           #CD-ROM usable as root. "CD9660" req'ed
options         PROCFS                  #Process filesystem
options         "COMPAT_43"             #Compatible with BSD 4.3 [KEEP THIS!]
options         SCSI_DELAY=15000        #Be pessimistic about Joe SCSI device
options         UCONSOLE                #Allow users to grab the console
options         FAILSAFE                #Be conservative
options         USERCONFIG              #boot -c editor
options         VISUAL_USERCONFIG       #visual boot -c editor
config          kernel  root on wd0
controller      isa0
controller      pnp0
controller      eisa0
controller      pci0
controller      fdc0    at isa? port "IO_FD1" bio irq 6 drq 2
disk            fd0     at fdc0 drive 0
disk            fd1     at fdc0 drive 1
options         "CMD640"        # work around CMD640 chip deficiency
controller      wdc0    at isa? port "IO_WD1" bio irq 14
disk            wd0     at wdc0 drive 0
disk            wd1     at wdc0 drive 1
controller      wdc1    at isa? port "IO_WD2" bio irq 15
disk            wd2     at wdc1 drive 0
disk            wd3     at wdc1 drive 1
options         ATAPI           #Enable ATAPI support for IDE bus
options         ATAPI_STATIC    #Don't do it as an LKM
device          acd0            #IDE CD-ROM
device          wfd0            #IDE Floppy (e.g. LS-120)
device          mcd0    at isa? port 0x300 bio irq 10
controller      atkbdc0 at isa? port IO_KBD tty
device          atkbd0  at isa? tty irq 1
device          psm0    at isa? tty irq 12
device          vga0    at isa? port ? conflicts
pseudo-device   splash
device          sc0     at isa? tty
device          npx0    at isa? port IO_NPX irq 13
device          sio0    at isa? port "IO_COM1" flags 0x10 tty irq 4
device          sio1    at isa? port "IO_COM2" tty irq 3
device          sio2    at isa? disable port "IO_COM3" tty irq 5
device          sio3    at isa? disable port "IO_COM4" tty irq 9
device xl0              # 3Com 3c90x (``Boomerang'', ``Cyclone'')
pseudo-device   loop
pseudo-device   ether
pseudo-device   pty     16
pseudo-device   gzip            # Exec gzipped a.out's
options         KTRACE          #kernel tracing
options         SYSVSHM
options         SYSVMSG
options         SYSVSEM
pseudo-device   bpfilter 4      #Berkeley packet filter

#############################################################

I tried the same the same on linux and it does not trap the system.


Please advice any ideas how to solve this.


DEcebal 
 


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