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Re: [ARM optimization back-end] Strange bug in MySQL


Emmanuel Fleury writes:
 > Andrew Haley wrote:
 > > 
 > > It seems that no-one has investigated what is really going on.  All
 > > the gdb backtraces are without any debuginfo, and no-one has looked at
 > > where exactly the segfault happens.  No-one has looked at the source
 > > code that faults, or the assembly code generated by the compiler.
 > 
 > Yesterday, I asked the guy to compile with debug symbols and to redo the
 > trace. I'll keep you informed. I'll try to monitor him and get some more
 > information about it.
 > 
 > But if the bug disappear when -O2 is turned off, I do suspect
 > (*eventually*) some problem in the ARM back-end... Am I right ?

It's possible, but probably not.  Most bugs that appear at -O2 are
coding errors, but let's wait before pushing to any judgment.

Andrew.


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