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SubjectRe: [PATCH mm] fix i386 get_gate_vma oops
Hugh Dickins wrote:
> Fix oops from i386-make-compat_vdso-runtime-selectable.patch.
> Even mingetty at system startup finds it easy to trigger an oops
> while reading /proc/PID/maps: though it has a good hold on the mm
> itself, that cannot stop exit_mm() from resetting tsk->mm to NULL.
> (It is usually show_map()'s call to get_gate_vma() which oopses,
> and I expect we could change that to check priv->tail_vma instead;
> but no matter, even m_start()'s call just after get_task_mm() is racy.)
> Signed-off-by: Hugh Dickins <>
Hm, OK.

Acked-by: Jeremy Fitzhardinge <>

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