https://bugs.kde.org/show_bug.cgi?id=372828
Bug ID: 372828
Summary: vex amd64->IR: unhandled instruction bytes: 0x66 0x4D
0xF 0x38 0xF6 0xD2 0x66 0x4D
Product: valgrind
Version: 3.12 SVN
Platform: Other
OS: Linux
Status: UNCONFIRMED
Severity: normal
Priority: NOR
Component: vex
Assignee: jsew...@acm.org
Reporter: m...@cyrilbouvier.fr
Target Milestone: ---
Hi,
the illegal instruction seen to come from GMP's function __gmpn_sqr_basecase
GMP version: 6.1.1 compiled from source
vex amd64->IR: unhandled instruction bytes: 0x66 0x4D 0xF 0x38 0xF6 0xD2 0x66
0x4D
vex amd64->IR: REX=1 REX.W=1 REX.R=1 REX.X=0 REX.B=1
vex amd64->IR: VEX=0 VEX.L=0 VEX.nVVVV=0x0 ESC=0F38
vex amd64->IR: PFX.66=1 PFX.F2=0 PFX.F3=0
==11182== valgrind: Unrecognised instruction at address 0x4e64ac2.
==11182== at 0x4E64AC2: __gmpn_sqr_basecase (in
/home/cyril/lib/libgmp.so.10.3.1)
==11182== by 0x4E8C22F: __gmpn_powm (in /home/xxxxx/lib/libgmp.so.10.3.1)
==11182== by 0x4E55FB3: __gmpz_powm (in /home/xxxxx/lib/libgmp.so.10.3.1)
==11182== by 0x4E5470C: __gmpz_millerrabin (in
home/xxxxxx/lib/libgmp.so.10.3.1)
==11182== by 0x4E57B41: __gmpz_probab_prime_p (in
/home/xxxxxx/lib/libgmp.so.10.3.1)
$ uname -a
Linux zaphod 4.7.0-1-amd64 #1 SMP Debian 4.7.8-1 (2016-10-19) x86_64 GNU/Linux
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