Re: Software lockup (was Re: [Xen-ia64-devel] [PATCH][RFC][TAKE4] the P2M/VP patches)

[Isaku Yamahata <yamahata@xxxxxxxxxxxxx>]

On Fri, Apr 07, 2006 at 12:08:21PM +0100, Tristan Gingold wrote:

> a side question:
> 
> [...]
> > - 9536:357ffc54d5ca_make_vhpt_64kb.patch
> >   Without this patch linux software lock up detection is triggered.
> >   This is a temporal work around.
> 
> In fact it is very easy to trigger the software lock up: pause and unpause a 
> domain.  Is software lockup enabled on xenlinux/x86 ?

Yes. See below.
(In fact I'm using a customised configuration of Linux)

xen-ia64-unstable.hg/buildconfigs $ grep CONFIG_DETECT_SOFTLOCKUP * 
linux-defconfig_xen0_ia64:CONFIG_DETECT_SOFTLOCKUP=y
linux-defconfig_xen0_x86_32:CONFIG_DETECT_SOFTLOCKUP=y
linux-defconfig_xen0_x86_64:CONFIG_DETECT_SOFTLOCKUP=y
linux-defconfig_xenU_ia64:CONFIG_DETECT_SOFTLOCKUP=y
linux-defconfig_xenU_x86_32:CONFIG_DETECT_SOFTLOCKUP=y
linux-defconfig_xenU_x86_64:CONFIG_DETECT_SOFTLOCKUP=y
linux-defconfig_xen_ia64:CONFIG_DETECT_SOFTLOCKUP=y
linux-defconfig_xen_x86_32:CONFIG_DETECT_SOFTLOCKUP=y
linux-defconfig_xen_x86_64:CONFIG_DETECT_SOFTLOCKUP=y

-- 
yamahata

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