The phrase "all malfunctions" is correct and usable in written English.
It can be used when referring to every instance of malfunctioning or failure in a system, device, or process.
Example: "The technician was called to address all malfunctions reported by the users."
Alternatives: "every malfunction" or "all failures".
All of our test programs write to the console (the user process version of printf is implemented this way), so they will all malfunction until write is available.
Cystic fibrosis was first described in 1938 in a child whose pancreas, intestines and lungs were all malfunctioning.
FDI performances of the original alarm system for all assumed malfunctions are evaluated and alarm signal selection and limit settings are reconsidered according to the evaluation results.
The modified glider mechanisms used to suspend the bomb in the bomb bay had caused all four malfunctions, due to the great weight of the bombs.
The modified glider mechanisms had apparently caused all four malfunctions, because of the weight of the bombs, and were replaced with British Type G single-point attachments and Type F releases used on the Lancaster to carry the 12000 pound Tallboy bomb.
"Such systems malfunction all the time," he wrote.
Stuxnet, a computer worm, discovered in June 2010, that was specifically written to take over certain programmable industrial control systems and cause the equipment run by those systems to malfunction, all the while feeding false data to the systems monitors indicating the equipment to be running as intended.
Most childhood ALL involves a malfunction of B cells, the scouts of the immune system that patrol the bloodstream looking for intruders like viruses and bacteria; they make antibodies that help fight infections.
The mayor sandwiched "Mamma Mia!" between a couple of shticks that had "Spider-Man" themes, malfunctions and all.
