On Dec 08 2022 16:11, Bjorn Andersson wrote: > On Thu, Dec 08, 2022 at 12:10:31PM +0530, Sibi Sankar wrote: ... > > + > > + err = idr_alloc_u32(&scm->waitq.idr, wq, &wq_ctx_idr, > > + U32_MAX, GFP_ATOMIC); > > PS. Thinking about it further, imagine the firmware people deciding to > be funny and allocating the wq_ctx in a cyclic fashion. The idr will > consume all your ram after a while... Even if wq_ctx is allocated cyclically, say, from 1 to N, only N idrs would ever be allocated as subsequently there would only be lookups. Could you elaborate on how we would run out of RAM? Thank you. Guru Das.
