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    SubjectRe: request_module: runaway loop modprobe net-pf-1 (is Re: Linux 2.6.21-rc1)
    On Thu, Feb 22, 2007 at 06:16:23AM +0900, OGAWA Hirofumi wrote:
    > Greg KH <greg@kroah.com> writes:
    >
    > > On Thu, Feb 22, 2007 at 04:12:04AM +0900, OGAWA Hirofumi wrote:
    > >> YOSHIFUJI Hideaki / ?$B5HF#1QL@ <yoshfuji@linux-ipv6.org> writes:
    > >>
    > >> > In article <Pine.LNX.4.64.0702202043280.4043@woody.linux-foundation.org> (at Tue, 20 Feb 2007 20:53:45 -0800 (PST)), Linus Torvalds <torvalds@linux-foundation.org> says:
    > >> >
    > >> >> But there's a ton of architecture updates (arm, mips, powerpc, x86, you
    > >> >> name it), ACPI updates, and lots of driver work. And just a lot of
    > >> >> cleanups.
    > >> >
    > >> > I cannot boot 2.6.21-rc1; it falls into OOM-Killer.
    > >> >
    > >> > Interesting error message I can see is:
    > >> > request_module: runaway loop modprobe net-pf-1
    > >> >
    > >> > After bisecting, the commit
    > >> > Driver core: let request_module() send a /sys/modules/kmod/-uevent
    > >> > (id c353c3fb0700a3c17ea2b0237710a184232ccd7f) is to blame.
    > >> >
    > >> > Reverting it fixes the issue to me.
    > >>
    > >> /sbin/hotplug needs some module, but request_module() call /sbin/hotplug loop?
    > >> Hm.. does the patch fix the problem?
    > >
    > > How does it loop?
    >
    > E.g. something calls the request_modle(), and if hotplug is using
    > socket(PF_UNIX) and af_unix is module, it also calls request_modle()?
    >
    > Just my guess though...

    Ugh, why does anyone make af_unix a module these days. I thought only
    Debian was that foolish... :)

    It will be interesting to see if this fixes the issue or not.

    thanks,

    greg k-h
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