Hi, > -----Original Message----- > From: containers-boun...@lists.linux-foundation.org > [mailto:containers-boun...@lists.linux-foundation.org] On Behalf Of Chen > Hanxiao > Sent: Wednesday, September 24, 2014 6:00 PM > To: contain...@lists.linux-foundation.org; linux-kernel@vger.kernel.org > Cc: Richard Weinberger; Serge Hallyn; Oleg Nesterov; Mateusz Guzik; David > Howells; > Eric W. Biederman > Subject: [PATCHv3 2/2] /proc/PID/status: show all sets of pid according to ns > > If some issues occurred inside a container guest, host user > could not know which process is in trouble just by guest pid: > the users of container guest only knew the pid inside containers. > This will bring obstacle for trouble shooting. > > This patch adds four fields: NStgid, NSpid, NSpgid and NSsid: > a) In init_pid_ns, nothing changed; > > b) In one pidns, will tell the pid inside containers: > NStgid: 21776 5 1 > NSpid: 21776 5 1 > NSpgid: 21776 5 1 > NSsid: 21729 1 0 > ** Process id is 21776 in level 0, 5 in level 1, 1 in level 2. > > c) If pidns is nested, it depends on which pidns are you in. > NStgid: 5 1 > NSpid: 5 1 > NSpgid: 5 1 > NSsid: 1 0 > ** Views from level 1 >
This patch is simple, useful and safe. But currently there is not any feedbacks. Any comments or ideas? Thanks, - Chen
