Messages in this thread | | | From | Hui Zhu <> | Date | Tue, 22 Sep 2009 22:18:19 +0800 | Subject | Re: [Demo/lkm] Kcoredump -- Do coredump in any where of kernel(not same with kcore) |
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On Tue, Sep 22, 2009 at 17:31, Américo Wang <xiyou.wangcong@gmail.com> wrote: > On Tue, Sep 22, 2009 at 4:41 PM, Hui Zhu <teawater@gmail.com> wrote: >> Hi guys, >> >> Kcoredump do a coredump in most part of kernel (it use kprobe, it can >> be set most of part of kernel). For example: >> insmod kcoredump.ko name=do_fork offset=11 >> gdb ./vmlinux /proc/kcoredump >> Core was generated by `'. > > But what is your point of generating coredump anywhere? > I mean what do you really want by this?
We can get the kernel status in do_fork+11 and put it to core file (It like gdb command "gcore"). GDB can parse it.
> > I think we can do this by systemtap+kdump, can't we? > It seems that kdump just can get core when kernel crash.
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