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Date: Fri, 7 Dec 2007 11:40:13 +0100 From: Ingo Molnar <mingo@...e.hu> To: Andrew Morton <akpm@...ux-foundation.org> Cc: Stefano Brivio <stefano.brivio@...imi.it>, Robert Love <rml@...h9.net>, linux-kernel@...r.kernel.org, Dave Jones <davej@...hat.com>, "Rafael J. Wysocki" <rjw@...k.pl>, Michael Buesch <mb@...sch.de>, Thomas Gleixner <tglx@...utronix.de>, Len Brown <lenb@...nel.org> Subject: Re: [PATCH] scheduler: fix x86 regression in native_sched_clock * Andrew Morton <akpm@...ux-foundation.org> wrote: > > - t = printk_clock(); > > + t = cpu_clock(printk_cpu); > > nanosec_rem = do_div(t, 1000000000); > > tlen = sprintf(tbuf, > > "<%c>[%5lu.%06lu] ", > > A bit risky - it's quite an expansion of code which no longer can call > printk. > > You might want to take that WARN_ON out of __update_rq_clock() ;) hm, dont we already detect printk recursions and turn them into a silent return instead of a hang/crash? Ingo -- 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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