View Issue Details
| ID | Project | Category | View Status | Date Submitted | Last Update |
|---|---|---|---|---|---|
| 0000831 | MetaPost | bug | public | 2013-05-22 16:38 | 2014-03-11 13:27 |
| Reporter | Taco | Assigned To | Taco | ||
| Priority | high | Severity | crash | Reproducibility | always |
| Status | closed | Resolution | fixed | ||
| Summary | 0000831: crash when running mp2pt1 input | ||||
| Description | Via Karl: > mpost: ../../../texk/web2c/mplibdir/mp.w:2968: > mp_free_value_node: Assertion `p->has_number==2' failed. I can reproduce that, with your environment settings MALLOC_CHECK_=3 MALLOC_PERTURB_=69 In your tarball (which I put at http://tug.org/~karl/mpost-failure.tgz), there is the script call-mpost.sh with these three lines: mpost -mem=mf2pt1 \ -progname=mpost \ '\mode:=localfont; mag:=100; bpppix 0.02; nonstopmode; input feta-noteheads11.mf' When I run that in your unpacked directory under i386-linux CentOS 5.9 (on tug.org) and the malloc envvars above, I get the assertion failure. Without them, I get a double-free error from glibc: *** glibc detected *** mpost: double free or corruption (!prev): 0x099db3b0 *** which I suppose is likely some earlier symptom of the same problem. Then I tried running it on sparc-solaris (compiled with gcc-4.5.0). Your example worked fine. Of course, there are no malloc debugging envvars there, so who knows. So I tried rebuilding a new i386-linux binary without optimization. Same result. Both of those were with the stock gcc-4.6.3. Then I tried rebuilding in the same Debian Sarge chroot with gcc-3.3.5 as I used last year, without optimization, and still got the same failures. I'm running the 4.6.3 unoptimized binary under gdb, with MPINPUTS=. and MFINPUTS=. (I copied in plain.mp and mfplain.mp from texmf-dist/metapost/base/ to the working directory), but it's not exactly obvious what is going on. I put the i386-linux binary I'm debugging with at http://tug.org/~karl/mpost.gz. Taco, can you help? | ||||
| Tags | No tags attached. | ||||
| Date Modified | Username | Field | Change |
|---|---|---|---|
| 2013-05-22 16:38 | Taco | New Issue | |
| 2013-05-22 16:38 | Taco | File Added: mpost-failure.tgz | |
| 2013-05-22 16:42 | Taco | Assigned To | => Taco |
| 2013-05-22 16:42 | Taco | Status | new => assigned |
| 2013-05-22 16:43 | Taco | Note Added: 0001087 | |
| 2013-06-13 11:08 | Taco | Status | assigned => resolved |
| 2013-06-13 11:08 | Taco | Resolution | open => fixed |
| 2014-03-11 13:27 | Taco | Note Added: 0001241 | |
| 2014-03-11 13:27 | Taco | Status | resolved => closed |
