Date: Wed, 07 Jun 2000 02:06:15 +0900 From: Mitsuru IWASAKI <iwasaki@jp.FreeBSD.org> To: freebsd-current@freebsd.org Cc: freebsd-smp@freebsd.org, msmith@freebsd.org, jlemon@flugsvamp.com, sumitani@bd2.hnes.nec.co.jp Subject: SMP + APM = panic -> fixed! Message-ID: <20000607020615U.iwasaki@jp.FreeBSD.org>
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Hi,
We're having this problem for long time (from the old 4.0-CURRENT
days), but Mr. SUMITANI discovered a bug and fixed it.
The problem was that we got worng gdt pointer for the current cpu,
then panic...
The followings is a patch to fix the problem. Thanks a lot, SUMITANI-san!
Please test this and I'll commit & MFC this if we have no problem with
this fix.
I love to have APM enabled SMP system with 4.1-RELEASE.
Index: bios.c
===================================================================
RCS file: /home/ncvs/src/sys/i386/i386/bios.c,v
retrieving revision 1.32
diff -u -r1.32 bios.c
--- bios.c 2000/05/17 19:44:16 1.32
+++ bios.c 2000/06/06 16:47:46
@@ -262,7 +262,7 @@
union descriptor *p_gdt;
#ifdef SMP
- p_gdt = &gdt[cpuid];
+ p_gdt = &gdt[cpuid * NGDT];
#else
p_gdt = gdt;
#endif
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