From the error messages it might be be that:
- your library routine is inappropriately freeing memory associated with some pointer that you've passed
or
- your code or library routine is accessing memory beyond that which it should.
On May 13, 2012, at 1:35 PM, Pavel Masloff wrote:
Hello,
I'm attempting to use an external library in the subroutine of an aSub record. Do I have to register all the library's functions and variables(in addition to aSubinit and aSubprocess)?
The IOC crashes during the completion of the aSub process subroutine:
*** glibc detected *** ../../bin/linux-x86/waveform: double free or corruption (out): 0x08d816b0 ***
======= Backtrace: =========
/lib/libc.so.6[0x3595a5]
/lib/libc.so.6(cfree+0x59)[0x3599e9]
../../bin/linux-x86/waveform[0x804bba7]
../../bin/linux-x86/waveform[0x804a6af]
/root/applications/epics/R3-14-12-1/base/lib/linux-x86/librecIoc.so.3.14[0xb71dde]
/root/applications/epics/R3-14-12-1/base/lib/linux-x86/libdbIoc.so.3.14(dbProcess+0x11d)[0x4d4a0d]
/root/applications/epics/R3-14-12-1/base/lib/linux-x86/libdbIoc.so.3.14(dbScanPassive+0x4b)[0x4d54db]
/root/applications/epics/R3-14-12-1/base/lib/linux-x86/libdbIoc.so.3.14(dbScanFwdLink+0x90)[0x4d5580]
/root/applications/epics/R3-14-12-1/base/lib/linux-x86/libdbIoc.so.3.14(recGblFwdLink+0x28)[0x4e88d8]
/root/applications/epics/R3-14-12-1/base/lib/linux-x86/librecIoc.so.3.14[0xb89866]
/root/applications/epics/R3-14-12-1/base/lib/linux-x86/libdbIoc.so.3.14(dbProcess+0x11d)[0x4d4a0d]
/root/applications/epics/R3-14-12-1/base/lib/linux-x86/libdbIoc.so.3.14(dbPutField+0x667)[0x4d5317]
/root/applications/epics/R3-14-12-1/base/lib/linux-x86/libdbIoc.so.3.14(db_put_field+0x171)[0x4e6391]
/root/applications/epics/R3-14-12-1/base/lib/linux-x86/librsrvIoc.so.3.14[0x11aaeb]
/root/applications/epics/R3-14-12-1/base/lib/linux-x86/librsrvIoc.so.3.14(camessage+0xd3)[0x118a33]
/root/applications/epics/R3-14-12-1/base/lib/linux-x86/librsrvIoc.so.3.14(camsgtask+0x191)[0x115ec1]
/root/applications/epics/R3-14-12-1/base/lib/linux-x86/libCom.so.3.14[0x15366b]
/lib/libpthread.so.0[0xc8f832]
/lib/libc.so.6(clone+0x5e)[0x3c1e0e]
======= Memory map: ========
00110000-0011e000 r-xp 00000000 fd:00 716657 /root/applications/epics/R3-14-12-1/base/lib/linux-x86/librsrvIoc.so.3.14
0011e000-0011f000 rwxp 0000d000 fd:00 716657 /root/applications/epics/R3-14-12-1/base/lib/linux-x86/librsrvIoc.so.3.14
0011f000-0016d000 r-xp 00000000 fd:00 716118 /root/applications/epics/R3-14-12-1/base/lib/linux-x86/libCom.so.3.14
0016d000-00170000 rwxp 0004d000 fd:00 716118 /root/applications/epics/R3-14-12-1/base/lib/linux-x86/libCom.so.3.14
00170000-00171000 rwxp 00170000 00:00 0
001c0000-001c2000 r-xp 00000000 fd:00 716397 /root/applications/epics/R3-14-12-1/base/lib/linux-x86/libregistryIoc.so.3.14
001c2000-001c3000 rwxp 00001000 fd:00 716397 /root/applications/epics/R3-14-12-1/base/lib/linux-x86/libregistryIoc.so.3.14
002ba000-002bb000 r-xp 002ba000 00:00 0 [vdso]
002e3000-002ee000 r-xp 00000000 fd:00 716574 /root/applications/epics/R3-14-12-1/base/lib/linux-x86/libasIoc.so.3.14
002ee000-002ef000 rwxp 0000b000 fd:00 716574 /root/applications/epics/R3-14-12-1/base/lib/linux-x86/libasIoc.so.3.14
002ef000-002f0000 rwxp 002ef000 00:00 0
002f0000-0042f000 r-xp 00000000 fd:00 1566503 /lib/libc-2.5.so
0042f000-00430000 --xp 0013f000 fd:00 1566503 /lib/libc-2.5.so
00430000-00432000 r-xp 0013f000 fd:00 1566503 /lib/libc-2.5.so
00432000-00433000 rwxp 00141000 fd:00 1566503 /lib/libc-2.5.so
00433000-00436000 rwxp 00433000 00:00 0
004c6000-004fa000 r-xp 00000000 fd:00 716545 /root/applications/epics/R3-14-12-1/base/lib/linux-x86/libdbIoc.so.3.14
004fa000-004fc000 rwxp 00033000 fd:00 716545 /root/applications/epics/R3-14-12-1/base/lib/linux-x86/libdbIoc.so.3.14
004fc000-004fd000 rwxp 004fc000 00:00 0
006df000-0073c000 r-xp 00000000 fd:00 716282 /root/applications/epics/R3-14-12-1/base/lib/linux-x86/libca.so.3.14
0073c000-0073f000 rwxp 0005c000 fd:00 716282 /root/applications/epics/R3-14-12-1/base/lib/linux-x86/libca.so.3.14
00770000-00775000 r-xp 00000000 fd:00 716949 /root/applications/epics/R3-14-12-1/base/lib/linux-x86/libsoftDevIoc.so.3.14
00775000-00776000 rwxp 00004000 fd:00 716949 /root/applications/epics/R3-14-12-1/base/lib/linux-x86/libsoftDevIoc.so.3.14
007f8000-00803000 r-xp 00000000 fd:00 1492649 /lib/libgcc_s-4.1.2-20080825.so.1
00803000-00804000 rwxp 0000a000 fd:00 1492649 /lib/libgcc_s-4.1.2-20080825.so.1
00af5000-00b0f000 r-xp 00000000 fd:00 1566497 /lib/ld-2.5.so
00b0f000-00b10000 r-xp 00019000 fd:00 1566497 /lib/ld-2.5.so
00b10000-00b11000 rwxp 0001a000 fd:00 1566497 /lib/ld-2.5.so
00b4f000-00b67000 r-xp 00000000 fd:00 716354 /root/applications/epics/R3-14-12-1/base/lib/linux-x86/libdbStaticIoc.so.3.14
00b67000-00b68000 rwxp 00017000 fd:00 716354 /root/applications/epics/R3-14-12-1/base/lib/linux-x86/libdbStaticIoc.so.3.14
00b68000-00b69000 rwxp 00b68000 00:00 0
00b6a000-00b8b000 r-xp 00000000 fd:00 716839 /root/applications/epics/R3-14-12-1/base/lib/linux-x86/librecIoc.so.3.14
00b8b000-00b8d000 rwxp 00020000 fd:00 716839 /root/applications/epics/R3-14-12-1/base/lib/linux-x86/librecIoc.so.3.14
00c3f000-00c42000 r-xp 00000000 fd:00 716866 /root/applications/epics/R3-14-12-1/base/lib/linux-x86/libmiscIoc.so.3.14
00c42000-00c43000 rwxp 00002000 fd:00 716866 /root/applications/epics/R3-14-12-1/base/lib/linux-x86/libmiscIoc.so.3.14
00c5b000-00c80000 r-xp 00000000 fd:00 1492646 /lib/libm-2.5.so
00c80000-00c81000 r-xp 00024000 fd:00 1492646 /lib/libm-2.5.so
00c81000-00c82000 rwxp 00025000 fd:00 1492646 /lib/libm-2.5.so
00c84000-00c86000 r-xp 00000000 fd:00 1566509 /lib/libdl-2.5.so
00c86000-00c87000 r-xp 00001000 fd:00 1566509 /lib/libdl-2.5.so
00c87000-00c88000 rwxp 00002000 fd:00 1566509 /lib/libdl-2.5.so
00c8a000-00c9e000 r-xp 00000000 fd:00 1566275 /lib/libpthread-2.5.so
00c9e000-00c9f000 r-xp 00013000 fd:00 1566275 /lib/libpthread-2.5.so
00c9f000-00ca0000 rwxp 00014000 fd:00 1566275 /lib/libpthread-2.5.so
00ca0000-00ca2000 rwxp 00ca0000 00:00 0
00cb9000-00cc0000 r-xp 00000000 fd:00 1566505 /lib/librt-2.5.so
00cc0000-00cc1000 r-xp 00006000 fd:00 1566505 /lib/librt-2.5.so
00cc1000-00cc2000 rwxp 00007000 fd:00 1566505 /lib/librt-2.5.so
00d26000-00d55000 r-xp 00000000 fd:00 1471787 /usr/lib/libreadline.so.5.1
00d55000-00d59000 rwxp 0002f000 fd:00 1471787 /usr/lib/libreadline.so.5.1
00d59000-00d5a000 rwxp 00d59000 00:00 0
00ef1000-00ef4000 r-xp 00000000 fd:00 716610 /root/applications/epics/R3-14-12-1/base/lib/linux-x86/libdbtoolsIoc.so.3.14
00ef4000-00ef5000 rwxp 00003000 fd:00 716610 /root/applications/epics/R3-14-12-1/base/lib/linux-x86/libdbtoolsIoc.so.3.14
00ef5000-00ef6000 rwxp 00ef5000 00:00 0
06c78000-06d58000 r-xp 00000000 fd:00 1470863 /usr/lib/libstdc++.so.6.0.8
06d58000-06d5c000 r-xp 000df000 fd:00 1470863 /usr/lib/libstdc++.so.6.0.8
06d5c000-06d5d000 rwxp 000e3000 fd:00 1470863 /usr/lib/libstdc++.so.6.0.8
06d5d000-06d63000 rwxp 06d5d000 00:00 0
06f5f000-06f9f000 r-xp 00000000 fd:00 1473781 /usr/lib/libncurses.so.5.5
06f9f000-06fa7000 rwxp 00040000 fd:00 1473781 /usr/lib/libncurses.so.5.5
06fa7000-06fa8000 rwxp 06fa7000 00:00 0
08048000-0804d000 r-xp 00000000 fd:00 756053 /root/applications/epics/R3-14-12-1/apps/WF/bin/linux-x86/waveform
0804d000-0804e000 rw-p 00005000 fd:00 756053 /root/applications/epics/R3-14-12-1/apps/WF/bin/linux-x86/waveform
08cf2000-08d9e000 rw-p 08cf2000 00:00 0 [heap]
b742d000-b74a8000 rw-p b742d000 00:00 0
b74a8000-b74a9000 ---p b74a8000 00:00 0
b74a9000-b7529000 rw-p b74a9000 00:00 0
b7529000-b752a000 ---p b7529000 00:00 0
b752a000-b75ab000 rw-p b752a000 00:00 0
b75ab000-b77ab000 r--p 00000000 fd:00 1489920 /usr/lib/locale/locale-archive
b77ab000-b77ac000 ---p b77ab000 00:00 0
b77ac000-b77ec000 rw-p b77ac000 00:00 0
b77ec000-b77ed000 ---p b77ec000 00:00 0
b77ed000-b780d000 rw-p b77ed000 00:00 0
b780d000-b780e000 ---p b780d000 00:00 0
b780e000-b784e000 rw-p b780e000 00:00 0
b784e000-b784f000 ---p b784e000 00:00 0
b784f000-b78cf000 rw-p b784f000 00:00 0
b78cf000-b78d0000 ---p b78cf000 00:00 0
b78d0000-b7950000 rw-p b78d0000 00:00 0
b7950000-b7951000 ---p b7950000 00:00 0
b7951000-b79d1000 rw-p b7951000 00:00 0
b79d1000-b79d2000 ---p b79d1000 00:00 0
b79d2000-b7a52000 rw-p b79d2000 00:00 0
b7a52000-b7a53000 ---p b7a52000 00:00 0
b7a53000-b7ad3000 Aborted
--
Best regards,
Pavel Maslov, MS
Controls Engineer at Pulsed power Lab
Efremov Institute for Electro-Physical Apparatus
St. Petersburg, Russia
Mobile: +7 (951) 672 22 19
Landline: +7 (812) 461 01 01
