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Open Source and information security mailing list archives
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Date: Tue, 03 Oct 2006 17:30:45 -0700 From: Daniel Walker <dwalker@...sta.com> To: john stultz <johnstul@...ibm.com> Cc: Clark Williams <williams@...hat.com>, Thomas Gleixner <tglx@...utronix.de>, Ingo Molnar <mingo@...e.hu>, LKML <linux-kernel@...r.kernel.org> Subject: Re: hrtimers bug message on 2.6.18-rt4 On Mon, 2006-10-02 at 10:45 -0700, john stultz wrote: > On Mon, 2006-10-02 at 12:39 -0500, Clark Williams wrote: > > I was debugging a PI mutex stress test when I got the following message > > on my Athlon64x2 (running 2.6.18-rt4): > > > > BUG: time warp detected! > > prev > now, 101878c199393108 > 101878c081eaca2b: > > = 4685981405 delta, on CPU#0 > > [<c0104c3c>] show_trace+0x2c/0x30 > > [<c0104dcb>] dump_stack+0x2b/0x30 > > [<c012ec89>] getnstimeofday+0x249/0x270 > > Could you send me your dmesg and .config? > This is likely a different issue but, I can generate this messages, like the following, BUG: time warp detected! prev > now, 1018dd8f5e9e5c1f > 0000001748787c3e: = 1159920411885297633 delta, on CPU#1 [<c010473b>] show_trace_log_lvl+0x1eb/0x1f0 [<c0104efb>] show_trace+0x1b/0x20 [<c0105004>] dump_stack+0x24/0x30 [<c012b030>] do_gettimeofday+0x1a0/0x1d0 [<c0125024>] sys_gettimeofday+0x24/0x90 [<c0103567>] syscall_call+0x7/0xb [<b7f9b410>] 0xb7f9b410 With ltpstess . It has a settimeofday test which can trigger it. It gets called with wild values. Daniel - 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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