Custom Query (1030 matches)

Evaluating the following form in a trunk lisp (r14424) dumps us into the kernel debugger.

(exp (+ (log most-positive-single-float) 100))

An oddity observed while testing.

Welcome to Clozure Common Lisp Version 1.4-dev-r13004M  (DarwinX8664)!
? (defvar *f* (make-array '(2 2) :element-type 'double-float))
*F*
? (watch *f*)
#2A((0.0D0 0.0D0) (0.0D0 0.0D0))
? (watch (array-data-and-offset *f*))
Unhandled exception 11 at 0x27777, context->regs at #xb029aa20
Exception occurred while executing foreign code
 at signal_handler + 135
? for help
[73105] Clozure CL kernel debugger: b

Frame pointer [#xb029b390] in unknown area.
[73105] Clozure CL kernel debugger: l
[73105] Clozure CL kernel debugger: r
%rax = 0x0000000000000000      %r8  = 0x0000000001001400
%rcx = 0x00000000b029aeb0      %r9  = 0x000000000001857c
%rdx = 0x0000000000504f10      %r10 = 0x000030004014101c
%rbx = 0x0000000000500000      %r11 = 0x0000000000504f10
%rsp = 0x00000000b029aef8      %r12 = 0x0000000000000000
%rbp = 0x0000000000000000      %r13 = 0x000000000000031a
%rsi = 0x0000000000504f10      %r14 = 0x000000ff0000037f
%rdi = 0x0000000000500000      %r15 = 0x0000000000000000
%rip = 0x0000000000027777   %rflags = 0x00010246
[73105] Clozure CL kernel debugger: t
Current Thread Context Record (tcr) = 0x504f10
Control (C) stack area:  low = 0xb0038000, high = 0xb029c000
Value (lisp) stack area: low = 0x1800000, high = 0x1a11000
Exception stack pointer = 0xb029aef8
[73105] Clozure CL kernel debugger: 

Crash doesn't happen if the array header isn't watched.

I tried to run win32 binary in Windows 7 64-bit. but an exception occurred.

this is log.

$ ./wx86cl
%eax = 0x02403058
%ecx = 0x000005ec
%edx = 0x00000008
%ebx = 0xc0000005
%esp = 0x02402de0
%ebp = 0x02403038
%esi = 0x02403060
%edi = 0x024030b4
%eip = 0x00023c95
%eflags = 0x00010202

%cs = 0x0023
%ds = 0x002b
%ss = 0x002b
%es = 0x002b
%fs = 0x0053
%gs = 0x002b
Exception on foreign stack

Exception occurred while executing foreign code
? for help
[4148] Clozure CL kernel debugger: