I’m not familiar with the system interrupt, however, the sigalrm_due_at is subsutitue between HOLD_INTERRUPTS() and RESUM_INTERRUPTS(), so I think it cannot be interrupted. The following comments comes from miscadmin.h.
Right, but how about before HOLD_INTERRUPTS()? If so, only calling handle_sig_alarm() is occurred, and Setitimer will not be set, I think.
Yeah, it might be occurred. Any suggestions to fix it?
