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64-bit 2.6.17.7 SMP hangs in __cpu_up().

To: <linux-mips@linux-mips.org>
Subject: 64-bit 2.6.17.7 SMP hangs in __cpu_up().
From: "Kaz Kylheku" <kaz@zeugmasystems.com>
Date: Thu, 7 Sep 2006 16:25:51 -0700
Original-recipient: rfc822;linux-mips@linux-mips.org
Sender: linux-mips-bounce@linux-mips.org
Thread-index: AcbS1PVG2vPyjOlUQySm6lGUUHn3SQ==
Thread-topic: 64-bit 2.6.17.7 SMP hangs in __cpu_up().
Anyone seen anything like this?

Execution does not get past the loop:

  while (!cpu_isset(cpu, cpu_callin_map))
    udelay(100);

The other CPU is not coming up.

32 bit SMP works fine.

The board is a relative of the Broadcom BigSur. The processor CPU is the
1280, dual core.

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