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Date: Mon, 14 Oct 2013 09:41:04 +0800 From: Chen Gang <gang.chen@...anux.com> To: paulmck@...ux.vnet.ibm.com CC: josh@...edesktop.org, "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org> Subject: Re: [Suggestion] kernel/rcutorture.c: about using scnprintf() instead of sprintf(). On 10/13/2013 07:05 PM, Paul E. McKenney wrote: > On Tue, Oct 08, 2013 at 04:32:53PM +0800, Chen Gang wrote: >> Hello Maintainers: >> >> In srcu_torture_stats(), if cpus are more than 1K, the PAGE_SIZE will >> not be enough. >> >> In rcu_torture_printk(), the 'page' maximized size is 4096, it has a >> function pointer for printing, which not tell its maximized length. >> >> Welcome any additional suggestions or completions. > > I never have run rcutorture on a system with that many CPUs. ;-) > I guess most of members (include me), never have run under that case. > Given that rcutorture is not used in production, my approach would be to > fix this when I encountered it. But what change would you suggest, and, > more importantly, how would you go about testing it before submitting > a patch? > OK, thanks, I will/should give a fix and test. Hmm, In my opinion, we need: - let it pass LTP common simple test (so I can know how to test it). - intend to shrink maximized buffer (PAGE_SIZE -> 64, 256 ..) for test. - read your original mail again (about testing contents) as reference. Excuse me, I have to do some other things of company, so I will/should try to finish it within this week (2013-10-20), if this time point is not quite suitable, please let me know, thanks. > Or if you are simply reporting this as a bug, please let me know that. > I will/should do: in q4 of 2013, I will/should spend part of my time resources on testing. Welcome any additional suggestions or completions. Thanks. -- Chen Gang -- 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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