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Thread-Topic: panic while using gdb amd64 freebsd7.2
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From: "Agarwal, Mayank" <Mayank.Agarwal@netapp.com>
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Subject: panic while using gdb amd64 freebsd7.2
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Hi,

=20

I have looked at archives but with no output.

=20

I am running freebsd7.2 amd64 as a virtual machine(VM) in vmware ESX
server. I have configured remote gdb to debug the kernel modules. My
problem is that whenever the breakpoint is hit and the I issue next or
step kernel panics with "double fault" error. This configuration was
working for 32-bit machine very well. I am trying to debug the tmpfs
module.

=20

Panic message on console is:

=20

Fatal double fault

rip =3D 0xffffffff80552be1

rsp =3D 0xffffffff006f5000

rbp =3D 0xffffffff006f5000

cpuid =3D 0; apic id =3D 00

panic: double fault

cpuid =3D 0

Uptime: 1h16m8s

Physical memory: 4555 MB

Dumping 207 MB: 192 176 160 144 128 112 96 80 64 48 32 16

Dump complete

=20

=20

I tried searching this problem on google also but with no help.

=20

Any help will be appreciated.

=20

Thanks,

Mayank

=20

=20

=20

=20