Hey Dan, can you please tell me how can I attach my gdb to rbd so that I can see whole req flow step by step with its help On Sun, 21 Jun 2020, 05:03 Dan Mick, <dmick(a)redhat.com> wrote:

You can use kernel dynamic debugging(echo 'file rbd.c +p' > /sys/kernel/debug/dynamic_debug/control) or systemtap. On Sun, Jun 21, 2020 at 5:08 PM Abhinav Singh <singhabhinav0796(a)gmail.com> wrote: > > Hey Dan, > can you please tell me how can I attach my gdb to rbd so that I can see whole req flow step by step with its help > > On Sun, 21 Jun 2020, 05:03 Dan Mick, <dmick(a)redhat.com> wrote: >> >> On 6/20/2020 10:14 AM, Abhinav Singh wrote: >> > Hello everyone, >> > To understand the flow of rgw I used the ceph cluster by this "RGW=1 >> > ../src/vstart.sh -d -n -x" >> > and then "ps ax|grep rgw" command will give me the pid of rgw server, >> > and then I used to do "gdb -p ${pid}" obtained from above. >> > Now I want to understand RBD work flow but when I do "ps ax|grep rbd" >> > then it is not showing any process related to "rbd" , I even tried it >> > with "RBD=1 ../src/vstart.sh -d -n -x" >> > but it did not work. >> > >> > Can anyone tell how to find pid process of rbd server?, or so that I can >> > attach gdb to it. >> >> rbd isn't a separate process. It's a kernel block driver and/or a >> userland library. >> _______________________________________________ >> Dev mailing list -- dev(a)ceph.io >> To unsubscribe send an email to dev-leave(a)ceph.io > > _______________________________________________ > Dev mailing list -- dev(a)ceph.io > To unsubscribe send an email to dev-leave(a)ceph.io