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Graph/36069528-5aa4-4047-b51e-749b2710c157

Problemunvalidated

When I compile it with `-O3`, it will never terminate. — different behaviors with different option levels. Tension: `-O0`, it will always terminate very soon.

36069528-5aa4-4047-b51e-749b2710c157

When I compile it with -O3, it will never terminate. — different behaviors with different option levels. Tension: -O0, it will always terminate very soon.

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Updated5/1/2026

PageRank0.0000

Effectiveness0.000

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17 linked nodes

DESCRIBESQuestion

CAUSED_BYRootCause

It's just that the while loop is not checking it for changes due to it being advertised as const. — Once you take a pointer to it, the compiler has to put it into memory. Tension: The variable `c` is likely to stay local in a register, hence it will not be shared. Outcome: the compiler has put the variable on the stack.

INSTANCE_OFClusterConcept

Memory Order Mismatch

Memory Limit Kills Runtime

Resource Limits Cause OOM

OOM Despite Swap Limits

Memory Limit Kills Before Swap

PERTAIN_TODomain

PERTAIN_TODomain

Memory Management

PERTAIN_TODomain

Undefined Behavior

PERTAIN_TODomain

PERTAIN_TODomain

Compiler Optimization

PERTAIN_TODomain

FIXED_BYSolution

`_exit(2)` terminates the calling process "immediately" — if what this function does is already what the default exit() function does for Linux. Outcome: By the way `exit(3)` has a reference to `_exit(2)`.

FIXED_BYSolution

$ gcc -s -O2 -W -Wall -Wextra -o ot ot.c -lssl && ./ot && echo OK. Tension: without the leading `$`. Outcome: gcc -s -O2 -W -Wall -Wextra -o ot ot.c -lssl && ./ot && echo OK.

FIXED_BYSolution

you either need to call it (just once is enough), or disable lazy compilation. — If you care about the actual tiering-up of the function. Tension: you need to spend a sufficient amount of time in the unoptimized version of the function. Outcome: Use the `--wasm-tiering-budget` flag to set a lower budget for testing.

FIXED_BYSolution

Solution « `volatile` » — The description of the `volatile` keyword. Tension: a hint to a compiler that an object may change its values in ways not specified by the language. Outcome: aggressive optimizations must be avoided.

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