dear all,
i have to make modifictions to the kernel and
i have been encountering kernel crashes all the
time.
the kernel panics with messages starting with
vm_fault: and then crashes and reboots.
i guess i have done incorrect memory operations and
i want to know where i went wrong.
so i thought of obtaining the crash dump. i went
through the developers guide.
and i added the following lines on the /etc/rc.conf
---
dumpdev="/dev/ad0s1b"
dumpdir="/var/crash"
savecore_flags=""
--
the /etc/fstab file is
Device Mountpoint FStype Options Dump Pass#
/dev/ad0s1b none swap sw 0 0
/dev/ad0s1a / ufs rw 1 1
/dev/ad0s1e /tmp ufs rw 2 2
/dev/ad0s1f /usr ufs rw 2 2
/dev/ad0s1d /var ufs rw 2 2
/dev/acd0 /cdrom cd9660 ro,noauto 0 0
swap partition is /dev/ad0s1b
swapinfo gives the output:--
Device 1K-blocks Used Avail Capacity
/dev/ad0s1b 495048 0 495048 0%
My memory size according to dmesg is --
real memory = 266600448 (254 MB)
avail memory = 251232256 (239 MB)
--
Now when the kernel crashes it prints the message
writing dump 240MB
but rebooting does not show any crash dump file
on /var/crash.
please help
kamal
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