Trying to read Crash Dump on Freebsd 10.3-Release

[G-Known]

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Hi,

Ever since I've upgraded my FreeBSD, the machine will crash during startup displaying a kernel panic fault page which involves the WLAN network driver. I'm able to locate the vmcore.0 file but kgdb isn't able to successfully open the file with the error:

Cannot access memory at address 0x0

I was in one of the compiled kernel and the command that produce this result was

kgdb kernel.debug /var/crash/vmcore.0

Crash dump is enabled in the rc.conf file through the following variables

# Set dumpdev to "AUTO" to enable crash dumps, "NO" to disable
dumpdev="AUTO"
dumpdir="/var/crash"

I want to discuss this further if people have the time.

Thanks.

[woodsmoke]

Hi
thanks for the question.
Maybe, don't know, this might be better asked at FreeBSD.
wooddunnosmoke

[Rubberman]

A seg-fault at address 0x0 basically means that something is trying to write to that memory address - not allowed! I agree with woodsmoke, contact the FreeBSD user forums for help!