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Open Source and information security mailing list archives
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Date: Mon, 25 Nov 2013 10:53:23 +0100 From: Peter Zijlstra <peterz@...radead.org> To: NeilBrown <neilb@...e.de> Cc: fengguang.wu@...el.com, "Li, Shaohua" <shaohua.li@...el.com>, LKML <linux-kernel@...r.kernel.org>, Ingo Molnar <mingo@...nel.org> Subject: Re: kernel BUG at drivers/md/raid5.c:693! On Mon, Nov 25, 2013 at 10:35:22AM +1100, NeilBrown wrote: > Ingo/Peter: is it considered OK to call wake_up while holding a spinlock? Yes, very much so. Doing a wakeup isn't _that_ expensive. > Could "sleeping spinlocks" affect this at all? (some sample stack traces are > below). Not entirely sure, are you referencing to -rt where me make spinlock_t pi-mutexes? -- 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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