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check_stack_overrun() was compiled out under ASAN, so a deeply nested expression recursed in Item_func::fix_fields() until the stack was exhausted and the server crashed instead of reporting ER_STACK_OVERRUN_NEED_MORE. Since MDEV-34533 (Monty) the stack usage seems to be accounted correctly under ASAN via my_get_stack_pointer(), so the check seems to works there too. Fix: Remove the #ifndef __SANITIZE_ADDRESS__ guard from check_stack_overrun() Add a test for ER_STACK_OVERRUN_NEED_MORE
18 lines
640 B
Plaintext
18 lines
640 B
Plaintext
--echo #
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--echo # MDEV-37781 ASAN build crashes with low thread stack
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--echo #
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--source include/not_embedded.inc
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# Expression like 1+1+...+1 recurses once per term in fix_fields().
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# As each recursion level consumes at least one byte of stack, we use
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# @@global.thread_stack terms to have a guaranteed stack overrun
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# on any platform, no matter the frame size.
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--replace_regex /[0-9]+ bytes used of a [0-9]+ byte stack, and [0-9]+ bytes needed/# bytes used of a # byte stack, and # bytes needed/
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--error ER_STACK_OVERRUN_NEED_MORE
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EXECUTE IMMEDIATE CONCAT('SELECT 1', REPEAT('+1', @@global.thread_stack));
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--echo # End of 10.11 tests
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