FiberError/NoMemoryError error related to csv gem occurs when upgrading from ruby ​​3.1 to 3.3

When upgrading from ruby 3.1.4 to 3.3.5, FiberError/NoMemoryError error related to csv occurred in our system. In addition, when loading csv file, CPU load also increases compared to before.

• FiberError: can't alloc machine stack to fiber (1 x 659456 bytes): Cannot allocate memory error
• NoMemoryError: failed to allocate memory

After investigation we found the cause. It was caused by csv gem. When upgrading ruby ​​version, csv version is also updated (from 3.2.5 to 3.2.8)
Even if we try to keep ruby ​​3.1.4 and only update csv gem to 3.2.8, the FiberError/NoMemoryError error will still occur
We have upgraded ruby ​​3.3.5 and kept the csv gem version 3.2.5 (same as ruby ​​version 3.1.4) and FiberError/NoMemoryError didn't occur and CPU load also didn't increase

It seems that some changes from csv 3.2.5 to 3.2.8 caused the error. This commit of csv gem is very suspicious

Inizia confrontando csv 3.2.5 e 3.2.8, in particolare il commit acc05116c55579b78925dd27024969b9daf69135, e riproduci il FiberError, il NoMemoryError e l’aumento della CPU segnalati con Ruby 3.1.4 o 3.3.5. Il lavoro è completato quando la regressione è stata identificata e viene aggiunto un fix o un test di regressione che dimostri che il percorso di caricamento CSV interessato non fallisce più e non causa l’aumento segnalato.