[Bug libdw/26921] dwarf_getalt () not thread-safe

2020-11-20 Thread woodard at redhat dot com via Elfutils-devel
https://sourceware.org/bugzilla/show_bug.cgi?id=26921

Ben Woodard  changed:

   What|Removed |Added

 CC||woodard at redhat dot com

--- Comment #1 from Ben Woodard  ---
Created attachment 12982
  --> https://sourceware.org/bugzilla/attachment.cgi?id=12982&action=edit
example backtrace tsearch.c:243

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[Bug libdw/26921] dwarf_getalt () not thread-safe

2020-11-20 Thread woodard at redhat dot com via Elfutils-devel
https://sourceware.org/bugzilla/show_bug.cgi?id=26921

--- Comment #2 from Ben Woodard  ---
Created attachment 12983
  --> https://sourceware.org/bugzilla/attachment.cgi?id=12983&action=edit
example backtrace tsearch.c:229

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[Bug libdw/26921] dwarf_getalt () not thread-safe

2020-11-20 Thread woodard at redhat dot com via Elfutils-devel
https://sourceware.org/bugzilla/show_bug.cgi?id=26921

--- Comment #3 from Ben Woodard  ---
Created attachment 12984
  --> https://sourceware.org/bugzilla/attachment.cgi?id=12984&action=edit
example backtrace tsearch.c:269

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[Bug libdw/26921] dwarf_getalt () not thread-safe

2020-11-20 Thread woodard at redhat dot com via Elfutils-devel
https://sourceware.org/bugzilla/show_bug.cgi?id=26921

--- Comment #4 from Ben Woodard  ---
Created attachment 12985
  --> https://sourceware.org/bugzilla/attachment.cgi?id=12985&action=edit
example backtrace tsearch.c:214

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[Bug libdw/26921] dwarf_getalt () not thread-safe

2020-11-20 Thread woodard at redhat dot com via Elfutils-devel
https://sourceware.org/bugzilla/show_bug.cgi?id=26921

--- Comment #5 from Ben Woodard  ---
There were 214 crashes in my test that ended up in tseach.c those 4 back traces
represent the 4 places where the problem occured.

tsearch.c:229 - 181 cases
tsearch.c:269 - 16 cases
tsearch.c:214 - 13 cases
tsearch.c:243 - 8 cases

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[Bug libdw/26921] dwarf_getalt () not thread-safe

2020-11-20 Thread woodard at redhat dot com via Elfutils-devel
https://sourceware.org/bugzilla/show_bug.cgi?id=26921

--- Comment #6 from Ben Woodard  ---
Created attachment 12986
  --> https://sourceware.org/bugzilla/attachment.cgi?id=12986&action=edit
a unique one at tsearch.c:229

This one particular crash is unique in that it does NOT contain
__libdw_intern_next_unit

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