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Date: Sat, 20 Sep 2014 20:33:26 +0200 From: Peter Zijlstra <peterz@...radead.org> To: Kirill Tkhai <tkhai@...dex.ru> Cc: linux-kernel@...r.kernel.org, Ingo Molnar <mingo@...hat.com>, Kirill Tkhai <ktkhai@...allels.com> Subject: Re: [PATCH 2/7] sched: Fix picking a task switching on other cpu (__ARCH_WANT_UNLOCKED_CTXSW) On Sat, Sep 20, 2014 at 08:51:22PM +0400, Kirill Tkhai wrote: > From: Kirill Tkhai <ktkhai@...allels.com> > > We may pick a task which is in context_switch() on other cpu at the moment. > Parallel using of a single stack by two processes is not a good idea. Please elaborate on who exactly that might happen. Its best to have comprehensive changelogs for issues that fix races. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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