I had an instance of SER crash in production with this error message from
qm_debug_frag:

[mem/q_malloc.c:149]: BUG: qm_*: fragm. 0x4cee3b88 (address 0x4cee3ba0) end
overwritten(0, 0)!

The fragment end was been overwritten with zeroes... buffer overflow? Or an
aliasing bug? Maybe a double-free?

It would be much easier to debug problems like this if qm_debug_frag printed the
call site where qm_malloc/free was invoked from. And now it does!

You can view, comment on, or merge this pull request online at:

  https://github.com/kamailio/kamailio/pull/361

Commit Summary

• mem/q_malloc: log more diagnostic information in qm_debug_frag

File Changes

• M mem/q_malloc.c (33)

Patch Links:

• https://github.com/kamailio/kamailio/pull/361.patch
• https://github.com/kamailio/kamailio/pull/361.diff

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