On 7/3/2025 4:31 AM, Kirill A. Shutemov wrote: > > cond_local_irq_enable() need to happen if we want to do something > sleepable during exception handling. It is not the case here. > Makes sense. > notify_die() will be called die_addr()->__die_body()->notify_die(). The notify_die() within __die_body() is slightly different from the one called from the exception handlers. __die_body(): notify_die(DIE_OOPS, str, regs, err, current->thread.trap_nr, SIGSEGV) exc_alignment_check(): notify_die(DIE_TRAP, str, regs, error_code, X86_TRAP_AC, SIGBUS) I believe we should include a #SS specific notify before calling die_addr(). Similar to exc_alignment_check() which dies on kernel exceptions. if (notify_die(DIE_TRAP, str, regs, error_code, X86_TRAP_SS, SIGBUS) == NOTIFY_STOP) return; This way the behavior remains consistent with other exception handlers as well as with/without LASS.
