On 6/7/19 7:53 AM, Sai Charan Sane wrote: > Memory overhead of 4MB is reduced by storing gfp_mask in stackdepot along > with stacktrace. Stackdepot memory usage increased by ~100kb for 4GB of RAM. > > Page owner logs from dmesg: > Before patch: > allocated 20971520 bytes of page_ext > After patch: > allocated 16777216 bytes of page_ext > > Signed-off-by: Sai Charan Sane <s.charan@xxxxxxxxxxx> I don't know, this looks like unneeded abuse to me. In the debug scenario when someone boots a kernel with page_owner enabled, does 4MB out of 4GB RAM really make a difference?
