#8788: segfault in Sage-4.4 built using GCC-4.5.0
-----------------------+----------------------------------------------------
Reporter: was | Owner: GeorgSWeber
Type: defect | Status: new
Priority: blocker | Milestone: sage-4.4.1
Component: build | Keywords:
Author: | Upstream: N/A
Reviewer: | Merged:
Work_issues: |
-----------------------+----------------------------------------------------
If we build Sage-4.4 (with several tickets/patches/elbow grease) with
GCC-4.5.0, then many things cause it to segfault at exit. The simplest I
found so far is this:
{{{
sage: Mat(GF(9,'a'),3,sparse=True).random_element()
sage: from sage.matrix.matrix_space import test_trivial_matrices_inverse
as tinv
sage: tinv(ZZ, sparse=False)
sage: quit
Exiting Sage (CPU time 0m0.11s, Wall time 0m0.15s).
*** glibc detected *** python: double free or corruption (fasttop):
0x000000000233a930 ***
======= Backtrace: =========
/lib64/libc.so.6[0x39a6c74a76]
/lib64/libc.so.6(exit+0xe2)[0x39a6c35b82]
python[0x4c3896]
python[0x4c30f5]
python(PyRun_SimpleFileExFlags+0x159)[0x4c5e69]
python(Py_Main+0xa5e)[0x413cde]
/lib64/libc.so.6(__libc_start_main+0xfd)[0x39a6c1eb1d]
python[0x412f79]
======= Memory map: ========
00400000-00566000 r-xp 00000000 00:13 12537003
/home/wstein/screen/lena/sage-4.4/local/bin/python
00765000-0079e000 rw-p 00165000 00:13 12537003
/home/wstein/screen/lena/sage-4.4/local/bin/python
0079e000-007ad000 rw-p 00000000 00:00 0
00bf1000-04d16000 rw-p 00000000 00:00 0
[heap]
316e600000-316e61c000 r-xp 00000000 fd:00 8683576
/lib64/libselinux.so.1
316e61c000-316e81b000 ---p 0001c000 fd:00 8683576
/lib64/libselinux.so.1
316e81b000-316e81c000 r--p 0001b000 fd:00 8683576
/lib64/libselinux.so.1
316e81c000-316e81d000 rw-p 0001c000 fd:00 8683576
/lib64/libselinux.so.1
316e81d000-316e81e000 rw-p 00000000 00:00 0
3171200000-3171203000 r-xp 00000000 fd:00 8683697
/lib64/libcom_err.so.2.1
3171203000-3171402000 ---p 00003000 fd:00 8683697
/lib64/libcom_err.so.2.1
3171402000-3171403000 rw-p 00002000 fd:00 8683697
/lib64/libcom_err.so.2.1
3171600000-31716b3000 r-xp 00000000 fd:00 8683698
/lib64/libkrb5.so.3.3
31716b3000-31718b3000 ---p 000b3000 fd:00 8683698
/lib64/libkrb5.so.3.3
31718b3000-31718bd000 rw-p 000b3000 fd:00 8683698
/lib64/libkrb5.so.3.3
3171a00000-3171a2d000 r-xp 00000000 fd:00 8683700
/lib64/libgssapi_krb5.so.2.2
3171a2d000-3171c2d000 ---p 0002d000 fd:00 8683700
/lib64/libgssapi_krb5.so.2.2
3171c2d000-3171c2f000 rw-p 0002d000 fd:00 8683700
/lib64/libgssapi_krb5.so.2.2
3171e00000-3171e2a000 r-xp 00000000 fd:00 8683677
/lib64/libk5crypto.so.3.1
3171e2a000-317202a000 ---p 0002a000 fd:00 8683677
/lib64/libk5crypto.so.3.1
317202a000-317202c000 rw-p 0002a000 fd:00 8683677
/lib64/libk5crypto.so.3.1
3172200000-3172208000 r-xp 00000000 fd:00 8683667
/lib64/libkrb5support.so.0.1
3172208000-3172408000 ---p 00008000 fd:00 8683667
/lib64/libkrb5support.so.0.1
3172408000-3172409000 rw-p 00008000 fd:00 8683667
/lib64/libkrb5support.so.0.1
3172600000-3172652000 r-xp 00000000 fd:00 52070079
/usr/lib64/libssl.so.1.0.0
3172652000-3172851000 ---p 00052000 fd:00 52070079
/usr/lib64/libssl.so.1.0.0
3172851000-3172859000 rw-p 00051000 fd:00 52070079
/usr/lib64/libssl.so.1.0.0
39a6800000-39a681e000 r-xp 00000000 fd:00 8683525
/lib64/ld-2.11.1.so
39a6a1d000-39a6a1e000 r--p 0001d000 fd:00 8683525
/lib64/ld-2.11.1.so
39a6a1e000-39a6a1f000 rw-p 0001e000 fd:00 8683525
/lib64/ld-2.11.1.so
...
}}}
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/8788>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
and MATLAB
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