Date: Tue, 2 Dec 2008 16:34:08 +0100 From: Luigi Rizzo <rizzo@iet.unipi.it> To: Danny Braniss <danny@cs.huji.ac.il> Cc: freebsd-hackers@freebsd.org, freebsd-stable@freebsd.org Subject: Re: btx/pxeboot problem Message-ID: <20081202153408.GC54445@onelab2.iet.unipi.it> In-Reply-To: <E1L7Tjl-000Ert-J6@kabab.cs.huji.ac.il> References: <E1L7Tjl-000Ert-J6@kabab.cs.huji.ac.il>
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On Tue, Dec 02, 2008 at 01:48:17PM +0200, Danny Braniss wrote: > latest pxeboot (7.1): > mother-board NIC/LOM CPU > ------------- ------- --- > Intel SWV25 em xeon works fine > SUN X2200 bge amd works fine > DELL PE 2950 bce xeon failes 95% of the times > hangs or goes into btx dump regs. mode :-) > Intel SE7320VP21 msk xeon failes 50% of the times - hangs > > pxeboot with btx.S 1.45 2008/02/27 23:35:39, works fine. > so it seems that changes since 1.45 have fixed it for some, but it > brakes for others :-). I can help testing, but btx is way out of > my league. interesting, so this is the same problem i was seeing on the Asus/amd machines here... the commit log for 1.47 mention interrupt issues which are consistent with the random hangs or errors that I see while booting over the network. http://www.freebsd.org/cgi/cvsweb.cgi/src/sys/boot/i386/btx/btx/btx.S.diff?r1=1.46;r2=1.47 I wonder if the hangs are related to interrupts coming in at the wrong time. I also wonder whether the same symptoms might also affect the standard loader and not just pxeloader, in which case the problem would be slightly more serious. I am afraid my ability to debug the problem isn't going much beyond this... cheers luigi
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