Re: [Xen-devel] [PATCH] xen/x86: fix cpu hotplug

2017-07-18 Thread Boris Ostrovsky
On 07/05/2017 10:05 AM, Juergen Gross wrote: > Commit dc6416f1d711eb4c1726e845d653235dcaae12e1 ("xen/x86: Call > cpu_startup_entry(CPUHP_AP_ONLINE_IDLE) from xen_play_dead()") > introduced an error leading to a stack overflow of the idle task when > a cpu was brought offline/online many times: by c

[Xen-devel] [PATCH] xen/x86: fix cpu hotplug

2017-07-05 Thread Juergen Gross
Commit dc6416f1d711eb4c1726e845d653235dcaae12e1 ("xen/x86: Call cpu_startup_entry(CPUHP_AP_ONLINE_IDLE) from xen_play_dead()") introduced an error leading to a stack overflow of the idle task when a cpu was brought offline/online many times: by calling cpu_startup_entry() instead of returning at th