On 10/25/18 11:25 AM, Eric W. Biederman wrote: > Florian Fainelli <[email protected]> writes: > >> Some software such as perf makes unconditional use of the special >> [vectors] page which is only provided when CONFIG_KUSER_HELPERS is >> enabled in the kernel. >> >> Facilitate the debugging of such situations by printing a debug message >> to the kernel log showing the task name and the faulting address. > > Can't someone trigger this segv deliberately and spam the kerne log? > Doesn't this need something like printk_ratelimit or something to ensure > this message only gets printed once?
Yes, good point, thanks. -- Florian
