Messages in this thread |  | | | Date | Tue, 26 Aug 2003 13:26:21 +0100 | | From | Richard Curnow <> | | Subject | Re: [PATCH] Pentium Pro - sysenter - doublefault |
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* Jamie Lokier <jamie@shareable.org> [2003-08-26]: > Could you please run this very simple userspace program for me, and > report the result? > > int main() { __asm__ ("sysenter"); return 0; } > > I expect it to die with SIGILL on Pentium and earlier chips, and > SIGSEGV on "good" PPro and later chips running kernels which don't > enable the sysenter instruction.
OK, since I get something different to the other reports I saw:
1:20PM-malvern-0-534-% ./sysenter 1:20PM-malvern-STKFLT-535-% echo $? 144
/proc/cpuinfo processor : 0 vendor_id : GenuineIntel cpu family : 6 model : 5 model name : Pentium II (Deschutes) stepping : 0 cpu MHz : 333.495 cache size : 512 KB fdiv_bug : no hlt_bug : no f00f_bug : no coma_bug : no fpu : yes fpu_exception : yes cpuid level : 2 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 mmx fxsr bogomips : 657.40
uname -a: Linux malvern 2.6.0-test2-mm5 #2 Fri Aug 8 12:06:50 BST 2003 i686 unknown
HTH
-- Richard \\\ SuperH Core+Debug Architect /// .. At home .. P. /// richard.curnow@superh.com /// rc@rc0.org.uk Curnow \\\ http://www.superh.com/ /// www.rc0.org.uk - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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