On 3/16/21 11:07 AM, Christoph Lameter wrote: > On Mon, 15 Mar 2021, Yang Shi wrote: > >> > It seems like CONFIG_SLUB_DEBUG is a more popular option than CONFIG_SLUB_STATS. >> > CONFIG_SLUB_DEBUG is enabled on my Fedora workstation, CONFIG_SLUB_STATS is off. >> > I doubt an average user needs this data, so I'd go with CONFIG_SLUB_STATS. Hm I can imagine that (after due performance testing) we would consider having accurate slabinfo in our distro kernel, just as we have CONFIG_SLUB_DEBUG but not the full stats. >> I think CONFIG_SLUB_DEBUG is enabled by default on most distros since >> it is supposed not incur too much overhead unless specific debug (i.e. >> red_zone) is turned on on demand. > > Correct. CONFIG_SLUB_DEBUG includes the code so the debugging can be > enabled on Distro kernels with a kernel command line option. So you dont > have to recompile the kernel to find weird memory corruption issues from > strange device drivers. > > Somehow my email address dropped off this thread. Hm I see cl@xxxxxxxxx in all e-mails of the thread, but now you replaced it with cl@xxxxxxxxx ?
