[Xen-users] pvops spinlock crash

[Tim Evers <it@xxxxxxxxxx>]

I have a lucid domu running kernel 2.6.35.13 which crashes at boot time
with error:

[ 0.210000] kernel BUG at
/build/buildd/linux-lts-backport-maverick-2.6.35/arch/x86/xen/spinlock.c:344!
[ 0.210000] invalid opcode: 0000 [#1] SMP
[ 0.210000] last sysfs file:
[ 0.210000] CPU 5
[ 0.210000] Modules linked in:
[ 0.210000]
[ 0.210000] Pid: 18, comm: migration/5 Not tainted 2.6.35-31-virtual
#62~lucid1-Ubuntu /

Disabling CONFIG_PARAVIRT_SPINLOCKS in domu kernel configs solves this
crash. Various xen and dom0 versions do not work with
CONFIG_PARAVIRT_SPINLOCKS on:

xen-4.0.1 / 2.6.32.31
xen-4.0.4-rc1-pre / 3.1.2
xen-4.1.3-rc1-pre / 3.1.2
xen-4.0.4-rc1-pre / 2.6.32.31

Any idea anyone what might be happenigng here?

Regards,

Tim

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