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Date: Thu, 17 Jan 2008 18:11:33 +0100 From: Mariusz Kozlowski <m.kozlowski@...land.pl> To: Steven Rostedt <rostedt@...dmis.org> Cc: LKML <linux-kernel@...r.kernel.org>, RT <linux-rt-users@...r.kernel.org>, Ingo Molnar <mingo@...e.hu>, Thomas Gleixner <tglx@...utronix.de> Subject: Re: 2.6.24-rc7-rt2 Hello, > > I found this in dmesg: > > > > BUG: swapper:0 task might have lost a preemption check! > > Pid: 0, comm: swapper Not tainted 2.6.24-rc7-rt2 #3 > > [<c010386b>] show_trace_log_lvl+0x1d/0x3b > > [<c01042f3>] show_trace+0x12/0x14 > > [<c0104a2f>] dump_stack+0x6a/0x70 > > [<c0115419>] preempt_enable_no_resched+0x5c/0x5e > > This is really really strange. cpu_idle calls __preempt_enable_no_resched > and not preempt_enable_no_resched (notice the prefixed underscores). > So I don't know how you got that output. Did you get any strance rejects > in applying this patch? Nope. Your rt patch applied cleanly to vanilla 2.6.24-rc7. Regards, Mariusz > > [<c0100e35>] cpu_idle+0x6d/0x82 > > [<c0323b6e>] rest_init+0x66/0x68 > > [<c043aba6>] start_kernel+0x20c/0x276 > > [<00000000>] 0x0 > > ======================= > > --------------------------- > > | preempt count: 00000000 ] > > | 0-level deep critical section nesting: > > ---------------------------------------- > > > > Box runs fine though. -- 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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