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RE: [Xen-devel] HVM SMP linux guest hangs in cpu_idle() with EFLAGS.IF =
| To: | Gianni Tedesco <gianni.tedesco@xxxxxxxxxx>, Xen Devel <xen-devel@xxxxxxxxxxxxxxxxxxx> |
|---|---|
| Subject: | RE: [Xen-devel] HVM SMP linux guest hangs in cpu_idle() with EFLAGS.IF = 1 |
| From: | "Nakajima, Jun" <jun.nakajima@xxxxxxxxx> |
| Date: | Wed, 21 Jul 2010 10:56:00 -0700 |
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| Delivery-date: | Wed, 21 Jul 2010 10:56:53 -0700 |
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| Thread-topic: | [Xen-devel] HVM SMP linux guest hangs in cpu_idle() with EFLAGS.IF = 1 |
Gianni Tedesco wrote on Wed, 21 Jul 2010 at 10:29:43: > Another data-point I have on this but haven't mentioned here yet is that > the userspace (anaconda) processes are usually hanging in > tty_wait_until_sent() which is apparently why things are woken up by > receiving a keypress on the serial line. > > At other times the hang occurs while userspace (hotplug, also anaconda) > is waiting in do_poll() on a kernel netlink socket. In that case a > keypress on serial line also wakes it (!!) > I'm not sure if I followed all the emails on the thread, but did you see such a hang without serial connection? I had impression (i.e. kind of remember) serial connection of Linux at boot time caused a hang especially with SMP (on native). > Gianni Tedesco > Jun ___ Intel Open Source Technology Center _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel |
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