Date: Wed, 28 Mar 2012 16:32:17 +0000 (UTC) From: John Baldwin <jhb@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r233613 - head/sys/x86/include Message-ID: <201203281632.q2SGWH4h044574@svn.freebsd.org>
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Author: jhb Date: Wed Mar 28 16:32:17 2012 New Revision: 233613 URL: http://svn.freebsd.org/changeset/base/233613 Log: Move the DTrace return IDT vector back up from 0x20 to 0x92. The 0x20 vector is currently dedicated to servicing IRQ 0 from the 8259A's, so it shouldn't be overloaded for DTrace. Tested by: rstone MFC after: 1 week Modified: head/sys/x86/include/segments.h Modified: head/sys/x86/include/segments.h ============================================================================== --- head/sys/x86/include/segments.h Wed Mar 28 16:32:15 2012 (r233612) +++ head/sys/x86/include/segments.h Wed Mar 28 16:32:17 2012 (r233613) @@ -215,8 +215,8 @@ union descriptor { #define IDT_MC 18 /* #MC: Machine Check */ #define IDT_XF 19 /* #XF: SIMD Floating-Point Exception */ #define IDT_IO_INTS NRSVIDT /* Base of IDT entries for I/O interrupts. */ -#define IDT_DTRACE_RET 0x20 /* DTrace pid provider Interrupt Vector */ #define IDT_SYSCALL 0x80 /* System Call Interrupt Vector */ +#define IDT_DTRACE_RET 0x92 /* DTrace pid provider Interrupt Vector */ #if defined(__i386__) || defined(__ia64__) /*
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