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Re: Segmentation fault of probed program during probing.
On Tue, 1 Feb 2011 12:04:01 +0530, Srikar Dronamraju <srikar@linux.vnet.ibm.com> wrote:
>Do you see any hints from output of 'dmesg'?
No, there are no messages generated after segfault
>Also if you have enabled core, then running gdb with core file can
>give us more hints.
I enabled core, but unfortunately stack seems corrupted:
(gdb) bt
#0 0xffff8000adc1210e in ?? ()
#1 0x0000000000000000 in ?? ()
Here is registers' state:
rax 0x2 2
rbx 0x7fff52aa1868 140734580267112
rcx 0x799030 7966768
rdx 0x799030 7966768
rsi 0x2 2
rdi 0x7fff52aa1868 140734580267112
rbp 0x42d560 0x42d560
rsp 0x7fff52aa16e0 0x7fff52aa16e0
r8 0x7f2c39354ea8 139827915083432
r9 0x1 1
r10 0x799020 7966752
r11 0x7f2c39052320 139827911926560
r12 0x2 2
r13 0x7fff52aa1860 140734580267104
r14 0x0 0
r15 0x7fff52aa16fc 140734580266748
rip 0xffff8000adc1210e 0xffff8000adc1210e
eflags 0x10246 [ PF ZF IF RF ]
cs 0x33 51
ss 0x2b 43
ds 0x0 0
es 0x0 0
fs 0x0 0
gs 0x0 0
st0 -nan(0x00000000d) (raw 0xffff000000000000000d)
st1 -nan(0x000000033) (raw 0xffff0000000000000033)
st2 -nan(0x10000000000000) (raw 0xffff0010000000000000)
st3 -nan(0x000000002) (raw 0xffff0000000000000002)
st4 0 (raw 0x00000000000000000000)
st5 0 (raw 0x00000000000000000000)
st6 0 (raw 0x00000000000000000000)
st7 -inf (raw 0xffff0000000000000000)
fctrl 0x37f 895
fstat 0x0 0
ftag 0xffff 65535
fiseg 0x0 0
fioff 0x0 0
foseg 0x0 0
fooff 0x0 0
fop 0x0 0
xmm0 {v4_float = {0x0, 0x0, 0x0, 0x0}, v2_double = {0x0, 0x0}, v16_int8 = {0x0, 0x0, 0x0,
0xff, 0x0 <repeats 12 times>}, v8_int16 = {0x0, 0xff00, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, v4_int32 = {
0xff000000, 0x0, 0x0, 0x0}, v2_int64 = {0xff000000, 0x0},
uint128 = 0x000000000000000000000000ff000000}
xmm1 {v4_float = {0x0, 0x0, 0x0, 0x0}, v2_double = {0x8000000000000000, 0x8000000000000000},
v16_int8 = {0xff, 0xff, 0xff, 0x0, 0xff <repeats 12 times>}, v8_int16 = {0xffff, 0xff, 0xffff,
0xffff, 0xffff, 0xffff, 0xffff, 0xffff}, v4_int32 = {0xffffff, 0xffffffff, 0xffffffff,
0xffffffff}, v2_int64 = {0xffffffff00ffffff, 0xffffffffffffffff},
uint128 = 0xffffffffffffffffffffffff00ffffff}
xmm2 {v4_float = {0x0, 0x0, 0x0, 0x0}, v2_double = {0x8000000000000000, 0x0}, v16_int8 = {
0x61, 0x6e, 0x64, 0x0, 0x65, 0x6e, 0x74, 0x72, 0x79, 0x5f, 0x61, 0x6e, 0x64, 0x20, 0x21, 0x3d},
v8_int16 = {0x6e61, 0x64, 0x6e65, 0x7274, 0x5f79, 0x6e61, 0x2064, 0x3d21}, v4_int32 = {0x646e61,
0x72746e65, 0x6e615f79, 0x3d212064}, v2_int64 = {0x72746e6500646e61, 0x3d2120646e615f79},
uint128 = 0x3d2120646e615f7972746e6500646e61}
xmm3 {v4_float = {0x0, 0x0, 0x0, 0x0}, v2_double = {0x0, 0x0}, v16_int8 = {0x0, 0x0, 0x0,
0x0, 0xff, 0x0 <repeats 11 times>}, v8_int16 = {0x0, 0x0, 0xff, 0x0, 0x0, 0x0, 0x0, 0x0},
v4_int32 = {0x0, 0xff, 0x0, 0x0}, v2_int64 = {0xff00000000, 0x0},
uint128 = 0x0000000000000000000000ff00000000}
xmm4 {v4_float = {0x0, 0x0, 0x0, 0x0}, v2_double = {0x0, 0x0}, v16_int8 = {
0x0 <repeats 16 times>}, v8_int16 = {0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, v4_int32 = {0x0,
0x0, 0x0, 0x0}, v2_int64 = {0x0, 0x0}, uint128 = 0x00000000000000000000000000000000}
xmm5 {v4_float = {0x0, 0x0, 0x0, 0x0}, v2_double = {0x0, 0x0}, v16_int8 = {
0x0 <repeats 16 times>}, v8_int16 = {0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, v4_int32 = {0x0,
0x0, 0x0, 0x0}, v2_int64 = {0x0, 0x0}, uint128 = 0x00000000000000000000000000000000}
xmm6 {v4_float = {0x0, 0x0, 0x0, 0x0}, v2_double = {0x0, 0x0}, v16_int8 = {
0x0 <repeats 16 times>}, v8_int16 = {0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, v4_int32 = {0x0,
0x0, 0x0, 0x0}, v2_int64 = {0x0, 0x0}, uint128 = 0x00000000000000000000000000000000}
xmm7 {v4_float = {0x0, 0x0, 0x0, 0x0}, v2_double = {0x0, 0x0}, v16_int8 = {
0x0 <repeats 16 times>}, v8_int16 = {0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, v4_int32 = {0x0,
0x0, 0x0, 0x0}, v2_int64 = {0x0, 0x0}, uint128 = 0x00000000000000000000000000000000}
xmm8 {v4_float = {0x0, 0x0, 0x0, 0x0}, v2_double = {0x0, 0x0}, v16_int8 = {
0x0 <repeats 16 times>}, v8_int16 = {0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, v4_int32 = {0x0,
0x0, 0x0, 0x0}, v2_int64 = {0x0, 0x0}, uint128 = 0x00000000000000000000000000000000}
xmm9 {v4_float = {0x0, 0x0, 0x0, 0x0}, v2_double = {0x0, 0x0}, v16_int8 = {
0x0 <repeats 16 times>}, v8_int16 = {0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, v4_int32 = {0x0,
0x0, 0x0, 0x0}, v2_int64 = {0x0, 0x0}, uint128 = 0x00000000000000000000000000000000}
xmm10 {v4_float = {0x0, 0x0, 0x0, 0x0}, v2_double = {0x0, 0x0}, v16_int8 = {
0x0 <repeats 16 times>}, v8_int16 = {0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, v4_int32 = {0x0,
0x0, 0x0, 0x0}, v2_int64 = {0x0, 0x0}, uint128 = 0x00000000000000000000000000000000}
xmm11 {v4_float = {0x0, 0x0, 0x0, 0x0}, v2_double = {0x0, 0x0}, v16_int8 = {
0x0 <repeats 16 times>}, v8_int16 = {0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, v4_int32 = {0x0,
0x0, 0x0, 0x0}, v2_int64 = {0x0, 0x0}, uint128 = 0x00000000000000000000000000000000}
xmm12 {v4_float = {0x0, 0x0, 0x0, 0x0}, v2_double = {0x0, 0x0}, v16_int8 = {
0x0 <repeats 16 times>}, v8_int16 = {0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, v4_int32 = {0x0,
0x0, 0x0, 0x0}, v2_int64 = {0x0, 0x0}, uint128 = 0x00000000000000000000000000000000}
xmm13 {v4_float = {0x0, 0x0, 0x0, 0x0}, v2_double = {0x0, 0x0}, v16_int8 = {
0x0 <repeats 16 times>}, v8_int16 = {0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, v4_int32 = {0x0,
0x0, 0x0, 0x0}, v2_int64 = {0x0, 0x0}, uint128 = 0x00000000000000000000000000000000}
xmm14 {v4_float = {0x0, 0x0, 0x0, 0x0}, v2_double = {0x0, 0x0}, v16_int8 = {
0x0 <repeats 16 times>}, v8_int16 = {0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, v4_int32 = {0x0,
0x0, 0x0, 0x0}, v2_int64 = {0x0, 0x0}, uint128 = 0x00000000000000000000000000000000}
xmm15 {v4_float = {0x0, 0x0, 0x0, 0x0}, v2_double = {0x0, 0x0}, v16_int8 = {
0x0 <repeats 16 times>}, v8_int16 = {0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, v4_int32 = {0x0,
0x0, 0x0, 0x0}, v2_int64 = {0x0, 0x0}, uint128 = 0x00000000000000000000000000000000}
mxcsr 0x1fa0 [ PE IM DM ZM OM UM PM ]
Is there is anything else I can provide?