diff options
| author | Juergen Gross | 2017-07-05 16:05:20 +0200 |
|---|---|---|
| committer | Juergen Gross | 2017-07-23 08:13:11 +0200 |
| commit | c185ddec54657c145a0c2055e4b87918da24974f (patch) | |
| tree | 534b075a9ed9871aed3983cfaa86c7111310b69d /drivers/xen | |
| parent | 29d11cfd8698038b87458ba4d1329b9da81150a5 (diff) | |
xen/x86: fix cpu hotplug
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 the end of xen_play_dead()
do_idle() would be entered again and again.
Don't use cpu_startup_entry(), but cpuhp_online_idle() instead allowing
to return from xen_play_dead().
Cc: <stable@vger.kernel.org> # 4.12
Signed-off-by: Juergen Gross <jgross@suse.com>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Signed-off-by: Juergen Gross <jgross@suse.com>
Diffstat (limited to 'drivers/xen')
0 files changed, 0 insertions, 0 deletions