Alle 17:43, venerd=EC 9 aprile 2004, Haskins, Gregory ha scritto:
> Out of curiosity: Are there any known issues or limitations with
> loadable kernel modules in UML?
> We are seeing strange interactions between a 2.4 based UML, klogd, and a
> lkm that we developed. We are not clear on whether it is a bug with our
> driver, or a bug in UMLs LKM support. The driver works when statically
> linked. Once we converted it to an LKM, if you start klogd after the
> LKM is loaded the kernel blows up in some fork/skas interaction.
You mean a kernel panic? Yes, it happened, I perfectly know this bug, so I =
gladly say it has been fixed in last UML patch (i.e. 2.4.24-2). However,=20
disable absolutely CONFIG_HUMFS. With that option, it does build only with=
2.6 host kernel headers, and runs only onto 2.6 hosts.
The bug happened because klogd, when starting, read /dev/kmem to find infos=
about the loaded module; but that triggered a UML bug which crashed it.
Paolo Giarrusso, aka Blaisorblade
Linux registered user n. 292729
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