Qiao, Daisuke and Zhang, Can you guys comment on this patch? It looks reasonable enough. Thanks, Dave ----- Original Message ----- > > > > > Hi, > > > > We’re debugging an in-house application that makes use of hard limit > extensively. We ran into a lot of timing windows (all our own making) and we > use runq -g command a lot. The current runq -g display only the RBROOT > pointer. It really is a bit inconvenient to traverse the task_group > hierarchy. It would be nice to have the command also display the > corresponding task_group, cfs_rq pointer (at a minimum). Since the way we > crash the system by messing up the nr_running and h_nr_running, so we also > display those two fields at the same time. Here’s an example of before and > after. > > > > CPU 4 > > CURRENT: PID: 0 TASK: ffff8840668c0380 COMMAND: "swapper" > > TASK_GROUP RT_RQ: ffff8800027d3820 > > RT PRIO_ARRAY: ffff8800027d3820 > > [no tasks queued] > > TASK_GROUP CFS_RQ: ffff8800027d36e0 > > CFS RB_ROOT: ffff8800027d3710 > > GROUP CFS RB_ROOT: ffff883ff69bcc30 <TDAT> > > GROUP CFS RB_ROOT: ffff884006290e30 <User> > > GROUP CFS RB_ROOT: ffff88400641c430 <TDWMVP1> > > GROUP CFS RB_ROOT: ffff88400646b030 <ServDown1:0> > > GROUP CFS RB_ROOT: ffff884006492630 <ServOrder1:1> > > GROUP CFS RB_ROOT: ffff883ff058fe30 <TDWMWD57> (THROTTLED) > > GROUP CFS RB_ROOT: ffff88047889ee30 <S:WD:3d:35fa> > > [120] PID: 27655 TASK: ffff8805078ce2c0 COMMAND: "actmain" > > <<< more throttled groups removed >>> > > > > CPU 4 > > CURRENT: PID: 0 CFS: ffff8800027d36e0 TASK: ffff8840668c0380 COMMAND: > "swapper" > > TASK_GROUP RT_RQ: ffff8800027d3820 > > RT PRIO_ARRAY: ffff8800027d3820 > > [no tasks queued] > > TASK_GROUP CFS_RQ: ffff8800027d36e0 > > CFS RB_ROOT: ffff8800027d3710 > > GROUP: ffff88405394d000 CFS: ffff883ff69bcc00 RB_ROOT: ffff883ff69bcc30 > <TDAT> (0 0) > > GROUP: ffff88405906c400 CFS: ffff884006290e00 RB_ROOT: ffff884006290e30 > <User> (0 0) > > GROUP: ffff884055081000 CFS: ffff88400641c400 RB_ROOT: ffff88400641c430 > <TDWMVP1> (0 0) > > GROUP: ffff884055081c00 CFS: ffff88400646b000 RB_ROOT: ffff88400646b030 > <ServDown1:0> (0 0) > > GROUP: ffff8840580fd400 CFS: ffff884006492600 RB_ROOT: ffff884006492630 > <ServOrder1:1> (0 0) > > GROUP: ffff884058f58c00 CFS: ffff883ff058fe00 RB_ROOT: ffff883ff058fe30 > <TDWMWD57> (7 9) (THROTTLED) > > GROUP: ffff8808fb976000 CFS: ffff88047889ee00 RB_ROOT: ffff88047889ee30 > <S:WD:3d:35fa> (1 1) > > [120] PID: 27655 TASK: ffff8805078ce2c0 COMMAND: "actmain" > > <<< more throttled groups removed >>> > > > > I have attached the patch we use to display additional information. Could you > please take a look at my proposal to see if it is possible that you include > this kind of display format. > > > > Thanks, > > Anthony > > > > > > -- > Crash-utility mailing list > Crash-utility@xxxxxxxxxx > https://www.redhat.com/mailman/listinfo/crash-utility -- Crash-utility mailing list Crash-utility@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/crash-utility