Hi,

My environment:

• OS: Fedora 19, 32 bit
• Hw: qemu - latest version
• iasl ver: 20130823-64 [Oct 8 2013]

When I disassembled some of the Qemu's ACPI tables like APIC or HPET using:
iasl -e DSDT -e SSDT -d HPET
I almost always received:

*** Error in /usr/bin/iasl': double free or corruption (!prev): 0x0881bc98 *** ======= Backtrace: ========= /lib/libc.so.6[0x46205d12] /usr/bin/iasl[0x80a5a66] /usr/bin/iasl[0x80a2717] /usr/bin/iasl[0x80a284b] /usr/bin/iasl[0x805bf32] /usr/bin/iasl[0x8072352] /usr/bin/iasl[0x80726c1] /usr/bin/iasl[0x80725f5] /usr/bin/iasl[0x80491a9] /lib/libc.so.6(__libc_start_main+0xf3)[0x461a9963] /usr/bin/iasl[0x80491fd] ======= Memory map: ======== 08047000-0810d000 r-xp 00000000 08:06 48242 /usr/bin/iasl 0810d000-0810e000 r--p 000c5000 08:06 48242 /usr/bin/iasl 0810e000-0810f000 rw-p 000c6000 08:06 48242 /usr/bin/iasl 0810f000-08113000 rw-p 00000000 00:00 0 087f7000-08839000 rw-p 00000000 00:00 0 [heap] 4616d000-4618c000 r-xp 00000000 08:06 4415 /usr/lib/ld-2.17.so 4618c000-4618d000 r--p 0001e000 08:06 4415 /usr/lib/ld-2.17.so 4618d000-4618e000 rw-p 0001f000 08:06 4415 /usr/lib/ld-2.17.so 46190000-46348000 r-xp 00000000 08:06 4643 /usr/lib/libc-2.17.so 46348000-46349000 ---p 001b8000 08:06 4643 /usr/lib/libc-2.17.so 46349000-4634b000 r--p 001b8000 08:06 4643 /usr/lib/libc-2.17.so 4634b000-4634c000 rw-p 001ba000 08:06 4643 /usr/lib/libc-2.17.so 4634c000-4634f000 rw-p 00000000 00:00 0 463d2000-463ed000 r-xp 00000000 08:06 51367 /usr/lib/libgcc_s-4.8.2-20131212.so.1 463ed000-463ee000 r--p 0001a000 08:06 51367 /usr/lib/libgcc_s-4.8.2-20131212.so.1 463ee000-463ef000 rw-p 0001b000 08:06 51367 /usr/lib/libgcc_s-4.8.2-20131212.so.1 b7741000-b7742000 rw-p 00000000 00:00 0 b776c000-b776f000 rw-p 00000000 00:00 0 b776f000-b7770000 r-xp 00000000 00:00 0 [vdso] bfc6f000-bfc91000 rw-p 00000000 00:00 0 [stack] *** Error in/usr/bin/iasl': double free or corruption (!prev): 0x09286cd8 ***
======= Backtrace: =========
/lib/libc.so.6[0x46205d12]
/usr/bin/iasl[0x80a5a66]
/usr/bin/iasl[0x80a2717]
/usr/bin/iasl[0x80a284b]
/usr/bin/iasl[0x805bf32]
/usr/bin/iasl[0x8072352]
/usr/bin/iasl[0x80726c1]
/usr/bin/iasl[0x80725f5]
/usr/bin/iasl[0x80491a9]
/lib/libc.so.6(__libc_start_main+0xf3)[0x461a9963]
/usr/bin/iasl[0x80491fd]
======= Memory map: ========
08047000-0810d000 r-xp 00000000 08:06 48242 /usr/bin/iasl
0810d000-0810e000 r--p 000c5000 08:06 48242 /usr/bin/iasl
0810e000-0810f000 rw-p 000c6000 08:06 48242 /usr/bin/iasl
0810f000-08113000 rw-p 00000000 00:00 0
09262000-092a4000 rw-p 00000000 00:00 0 [heap]
4616d000-4618c000 r-xp 00000000 08:06 4415 /usr/lib/ld-2.17.so
4618c000-4618d000 r--p 0001e000 08:06 4415 /usr/lib/ld-2.17.so
4618d000-4618e000 rw-p 0001f000 08:06 4415 /usr/lib/ld-2.17.so
46190000-46348000 r-xp 00000000 08:06 4643 /usr/lib/libc-2.17.so
46348000-46349000 ---p 001b8000 08:06 4643 /usr/lib/libc-2.17.so
46349000-4634b000 r--p 001b8000 08:06 4643 /usr/lib/libc-2.17.so
4634b000-4634c000 rw-p 001ba000 08:06 4643 /usr/lib/libc-2.17.so
4634c000-4634f000 rw-p 00000000 00:00 0
463d2000-463ed000 r-xp 00000000 08:06 51367 /usr/lib/libgcc_s-4.8.2-20131212.so.1
463ed000-463ee000 r--p 0001a000 08:06 51367 /usr/lib/libgcc_s-4.8.2-20131212.so.1
463ee000-463ef000 rw-p 0001b000 08:06 51367 /usr/lib/libgcc_s-4.8.2-20131212.so.1
b774b000-b774c000 rw-p 00000000 00:00 0
b7776000-b7779000 rw-p 00000000 00:00 0
b7779000-b777a000 r-xp 00000000 00:00 0 [vdso]
bfd37000-bfd59000 rw-p 00000000 00:00 0 [stack]
*** Error in /usr/bin/iasl': double free or corruption (!prev): 0x09587c58 *** ======= Backtrace: ========= /lib/libc.so.6[0x46205d12] /usr/bin/iasl[0x80a5a66] /usr/bin/iasl[0x80a2717] /usr/bin/iasl[0x80a284b] /usr/bin/iasl[0x805bf32] /usr/bin/iasl[0x8072352] /usr/bin/iasl[0x80726c1] /usr/bin/iasl[0x80725f5] /usr/bin/iasl[0x80491a9] /lib/libc.so.6(__libc_start_main+0xf3)[0x461a9963] /usr/bin/iasl[0x80491fd] ======= Memory map: ======== 08047000-0810d000 r-xp 00000000 08:06 48242 /usr/bin/iasl 0810d000-0810e000 r--p 000c5000 08:06 48242 /usr/bin/iasl 0810e000-0810f000 rw-p 000c6000 08:06 48242 /usr/bin/iasl 0810f000-08113000 rw-p 00000000 00:00 0 09563000-095a5000 rw-p 00000000 00:00 0 [heap] 4616d000-4618c000 r-xp 00000000 08:06 4415 /usr/lib/ld-2.17.so 4618c000-4618d000 r--p 0001e000 08:06 4415 /usr/lib/ld-2.17.so 4618d000-4618e000 rw-p 0001f000 08:06 4415 /usr/lib/ld-2.17.so 46190000-46348000 r-xp 00000000 08:06 4643 /usr/lib/libc-2.17.so 46348000-46349000 ---p 001b8000 08:06 4643 /usr/lib/libc-2.17.so 46349000-4634b000 r--p 001b8000 08:06 4643 /usr/lib/libc-2.17.so 4634b000-4634c000 rw-p 001ba000 08:06 4643 /usr/lib/libc-2.17.so 4634c000-4634f000 rw-p 00000000 00:00 0 463d2000-463ed000 r-xp 00000000 08:06 51367 /usr/lib/libgcc_s-4.8.2-20131212.so.1 463ed000-463ee000 r--p 0001a000 08:06 51367 /usr/lib/libgcc_s-4.8.2-20131212.so.1 463ee000-463ef000 rw-p 0001b000 08:06 51367 /usr/lib/libgcc_s-4.8.2-20131212.so.1 b77af000-b77b0000 rw-p 00000000 00:00 0 b77da000-b77dd000 rw-p 00000000 00:00 0 b77dd000-b77de000 r-xp 00000000 00:00 0 [vdso] bfe96000-bfeb8000 rw-p 00000000 00:00 0 [stack] *** Error in/usr/bin/iasl': double free or corruption (!prev): 0x096c7c98 ***
======= Backtrace: =========
/lib/libc.so.6[0x46205d12]
/usr/bin/iasl[0x80a5a66]
/usr/bin/iasl[0x80a2717]
/usr/bin/iasl[0x80a284b]
/usr/bin/iasl[0x805bf32]
/usr/bin/iasl[0x8072352]
/usr/bin/iasl[0x80726c1]
/usr/bin/iasl[0x80725f5]
/usr/bin/iasl[0x80491a9]
/lib/libc.so.6(__libc_start_main+0xf3)[0x461a9963]
/usr/bin/iasl[0x80491fd]
======= Memory map: ========
08047000-0810d000 r-xp 00000000 08:06 48242 /usr/bin/iasl
0810d000-0810e000 r--p 000c5000 08:06 48242 /usr/bin/iasl
0810e000-0810f000 rw-p 000c6000 08:06 48242 /usr/bin/iasl
0810f000-08113000 rw-p 00000000 00:00 0
096a3000-096e5000 rw-p 00000000 00:00 0 [heap]
4616d000-4618c000 r-xp 00000000 08:06 4415 /usr/lib/ld-2.17.so
4618c000-4618d000 r--p 0001e000 08:06 4415 /usr/lib/ld-2.17.so
4618d000-4618e000 rw-p 0001f000 08:06 4415 /usr/lib/ld-2.17.so
46190000-46348000 r-xp 00000000 08:06 4643 /usr/lib/libc-2.17.so
46348000-46349000 ---p 001b8000 08:06 4643 /usr/lib/libc-2.17.so
46349000-4634b000 r--p 001b8000 08:06 4643 /usr/lib/libc-2.17.so
4634b000-4634c000 rw-p 001ba000 08:06 4643 /usr/lib/libc-2.17.so
4634c000-4634f000 rw-p 00000000 00:00 0
463d2000-463ed000 r-xp 00000000 08:06 51367 /usr/lib/libgcc_s-4.8.2-20131212.so.1
463ed000-463ee000 r--p 0001a000 08:06 51367 /usr/lib/libgcc_s-4.8.2-20131212.so.1
463ee000-463ef000 rw-p 0001b000 08:06 51367 /usr/lib/libgcc_s-4.8.2-20131212.so.1
b7714000-b7715000 rw-p 00000000 00:00 0
b773f000-b7742000 rw-p 00000000 00:00 0
b7742000-b7743000 r-xp 00000000 00:00 0 [vdso]
bfc43000-bfc65000 rw-p 00000000 00:00 0 [stack]
qemu: terminating on signal 15 from pid 8740
main-loop: WARNING: I/O thread spun for 1000 iterations
*** Error in /usr/bin/iasl': double free or corruption (!prev): 0x09e5c3d0 *** ======= Backtrace: ========= /lib/libc.so.6[0x46205d12] /usr/bin/iasl[0x80a5a66] /usr/bin/iasl[0x80a2717] /usr/bin/iasl[0x80a284b] /usr/bin/iasl[0x805bf32] /usr/bin/iasl[0x8072352] /usr/bin/iasl[0x80726c1] /usr/bin/iasl[0x80725f5] /usr/bin/iasl[0x80491a9] /lib/libc.so.6(__libc_start_main+0xf3)[0x461a9963] /usr/bin/iasl[0x80491fd] ======= Memory map: ======== 08047000-0810d000 r-xp 00000000 08:06 48242 /usr/bin/iasl 0810d000-0810e000 r--p 000c5000 08:06 48242 /usr/bin/iasl 0810e000-0810f000 rw-p 000c6000 08:06 48242 /usr/bin/iasl 0810f000-08113000 rw-p 00000000 00:00 0 09e3c000-09e7e000 rw-p 00000000 00:00 0 [heap] 4616d000-4618c000 r-xp 00000000 08:06 4415 /usr/lib/ld-2.17.so 4618c000-4618d000 r--p 0001e000 08:06 4415 /usr/lib/ld-2.17.so 4618d000-4618e000 rw-p 0001f000 08:06 4415 /usr/lib/ld-2.17.so 46190000-46348000 r-xp 00000000 08:06 4643 /usr/lib/libc-2.17.so 46348000-46349000 ---p 001b8000 08:06 4643 /usr/lib/libc-2.17.so 46349000-4634b000 r--p 001b8000 08:06 4643 /usr/lib/libc-2.17.so 4634b000-4634c000 rw-p 001ba000 08:06 4643 /usr/lib/libc-2.17.so 4634c000-4634f000 rw-p 00000000 00:00 0 463d2000-463ed000 r-xp 00000000 08:06 51367 /usr/lib/libgcc_s-4.8.2-20131212.so.1 463ed000-463ee000 r--p 0001a000 08:06 51367 /usr/lib/libgcc_s-4.8.2-20131212.so.1 463ee000-463ef000 rw-p 0001b000 08:06 51367 /usr/lib/libgcc_s-4.8.2-20131212.so.1 b777d000-b777e000 rw-p 00000000 00:00 0 b77a8000-b77ab000 rw-p 00000000 00:00 0 b77ab000-b77ac000 r-xp 00000000 00:00 0 [vdso] bfbb1000-bfbd3000 rw-p 00000000 00:00 0 [stack] *** Error in/usr/bin/iasl': double free or corruption (!prev): 0x0926c410 ***

Note:
iasl -d HPET works OK.

Thanks,
Marcel