Hi Christoph: On 23:24 Fri 08 Jul , Christoph Hellwig wrote: > On Sat, Jul 09, 2022 at 09:01:10AM +0800, Yixun Lan wrote: > > Please check the ongoing discussion [0] in the bcc tools if you're > > interested in, advice and comments are welcome > > > > [0] https://github.com/iovisor/bcc/pull/4085#issuecomment-1179446738 > > I can't find a way to post there, as replying eems to require a login. > Is there a mailing list discussion somewhere that is broadly accessible? never mind, I think the logic is quite clear, we can do something in bcc: 1) adopt new _{kernel,user} interface whenever possible, this will work fine for all arch with new kernel versions 2) for old kernel versions which lack the _{kernel,user} support, fall back to old bpf_probe_read(), but take care of the Archs which have overlaping address space - like s390, and just error out for it -- Yixun Lan (dlan) Gentoo Linux Developer GPG Key ID AABEFD55
