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nouveau_channel_put() can be executed after the 'refcount == 0' check in nouveau_channel_get() and before the channel reference count is incremented. In that case CPU0 will take the context down while CPU1 thinks it owns the channel and 'refcount == 1'. Signed-off-by: Francisco Jerez <currojerez@riseup.net> Signed-off-by: Ben Skeggs <bskeggs@redhat.com> |
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