http://bugzilla.suse.com/show_bug.cgi?id=1111657
http://bugzilla.suse.com/show_bug.cgi?id=1111657#c24
Andreas Schwab changed:
What |Removed |Added
----------------------------------------------------------------------------
Component|Other |Kernel
Assignee|schwab@suse.com |kernel-maintainers@forge.pr
| |ovo.novell.com
--- Comment #24 from Andreas Schwab ---
That must be a kernel bug. The same insn at the same address with the same
operands produces different results on two calls.
(gdb)
0xf7b1f2ef 143 cor = (ssn + s * ccs - sn * c) + cs * s;
1: x/i $pc
=> 0xf7b1f2ef <__cos+831>: fldl -0x1e2f8(%ebx,%eax,8)
2: $st0 = 1.43323328782651048725e-20
(gdb)
0xf7b1f2f6 143 cor = (ssn + s * ccs - sn * c) + cs * s;
1: x/i $pc
=> 0xf7b1f2f6 <__cos+838>: faddp %st,%st(1)
2: $st0 = -nan(0xc000000000000000)
(gdb) x/x $ebx + $eax * 8 -0x1e2f8
0xf7b9c288: 0xac3fe0cb
(gdb)
0xf7b9c28c: 0x3c67c74b
(gdb)
0xf7b1f2ef 143 cor = (ssn + s * ccs - sn * c) + cs * s;
1: x/i $pc
=> 0xf7b1f2ef <__cos+831>: fldl -0x1e2f8(%ebx,%eax,8)
2: $st0 = 1.43323328782651048725e-20
(gdb)
0xf7b1f2f6 143 cor = (ssn + s * ccs - sn * c) + cs * s;
1: x/i $pc
=> 0xf7b1f2f6 <__cos+838>: faddp %st,%st(1)
2: $st0 = 1.03122798607872161491e-17
(gdb) x/x $ebx + $eax * 8 -0x1e2f8
0xf7b9c288: 0xac3fe0cb
(gdb)
0xf7b9c28c: 0x3c67c74b
--
You are receiving this mail because:
You are on the CC list for the bug.