On Mon, 2007-02-19 at 18:00 +0100, Wolfgang Grandegger wrote: > Hello, > > sometimes I get the following message when calling ktime_get_real() from > my interrupt handler: SMP machine ? > BUG: time warp detected! > prev > now, 104357354c79dfed > 1043573435312fb2: > = 4685606971 delta, on CPU#0 > [<c0103d51>] dump_trace+0x68/0x1d9 > [<c0103edd>] show_trace_log_lvl+0x1b/0x36 > [<c01044dd>] show_trace+0xf/0x11 > [<c010455e>] dump_stack+0x12/0x14 > [<c012f1b2>] ktime_get_real+0x10/0x2c > [<e09c03ad>] rtcan_rcv+0x12/0x99 [xeno_can] > [<e09c951d>] rtcan_sja_interrupt+0x220/0x43e [xeno_can_sja1000] > [<e0992018>] _rtdm_irq_trampoline+0x15/0x34 [xeno_rtdm] > [<c0145eb7>] handle_IRQ_event+0x41/0xb7 > [<c0146334>] thread_simple_irq+0x31/0x5f > [<c01468f8>] do_irqd+0xbd/0x249 > [<c012c531>] kthread+0xa0/0xcb > [<c010397b>] kernel_thread_helper+0x7/0x10 > ======================= > --------------------------- > | preempt count: 00000000 ] > | 0-level deep critical section nesting: > ---------------------------------------- > > Any idea how this can happen? Can you please provide a boot log ? tglx - To unsubscribe from this list: send the line "unsubscribe linux-rt-users" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html