Date: Fri, 15 Feb 2008 22:29:21 +0900 From: masatic@mbs.sphere.ne.jp (FUCHIGAMI Masachika) To: freebsd-amd64@freebsd.org Subject: Re: amd64/120202: [panic] kernel panic at start_all_aps, AP not starts Message-ID: <200802151329.014D79140124000.masatic.ME@inca.mbs.sphere.ne.jp> In-Reply-To: Your message of "Mon, 11 Feb 2008 15:21:45 -0500" <200802111521.45864.jhb@freebsd.org> References: <200802111521.45864.jhb@freebsd.org>
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"John Baldwin " said: jhb>> Removing the wait seems very odd, the pending status should still be there jhb>> even if we wait. However, this particular IPI is only for older CPUs anyway. jhb>> Try this patch instead perhaps: Thank you for your help, but that patch does not work. "panic: AP #1 (PHY# 1) failed!" is displayed. (MP init/start chart on athlon64x2 I understand -- correct?) BSP LAPIC0 LAPIC1 AP | | | | | | | | send | | | INIT-->|--INIT--->| | (init assert then deassert) IPI set pend. | | | |<--ACK----|-INIT->| | clear | JUMP to | pend. | reset vector Wait | | | 10ms | | <BIOS code>-+ | | | | | | | | | | *** something wrong occurs in my box??? Check | | | | | pend. | | |Halt loop | | | | +-:---------+ send-->|--SIPI--->| : SIPI set pend. |----->Wake up and | |<--ACK----| Jump to trampoline | clear | | | pend. | | Check | | | pend. | | | | | | | Wait | | | 200us | | | | | | | send | | | 2nd--->|--SIPI--->| | SIPI set pend. |----->(ignored) | |<--ACK----| | | clear | | | pend. | | Check | | mp_naps++ pend. | | | | | | | Wait | | | 200us | | | | | | | | | | | Check | | | mp_naps | | | | | | |
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