[VPP-474] VPP could not start, because huge pages config file location was changed #1724
Description
Description
i have 3 builds (deb packages), one from 28.sep, second from 4.oct and third from 7.oct
when i uninstalled vpp with:
sudo dpkg --purge vpp vpp-dbg vpp-dev vpp-dpdk-dev vpp-dpdk-dkms vpp-lib vpp-plugins
and have installed second or third build, vpp could not start because huge pages config file is here:
<li>Applying /usr/lib/sysctl.d/80-vpp.conf ...
instead of /etc as was in first build
if i check hugepages (after reboot), they are not set:
vagrant@localhost:~$ cat /proc/meminfo | grep Huge
AnonHugePages: 0 kB
HugePages_Total: 0
HugePages_Free: 0
HugePages_Rsvd: 0
HugePages_Surp: 0
Hugepagesize: 2048 kB
and vpp is not starting:
Oct 7 05:07:39 localhost kernel: [ 4278.641325] init: vpp main process ended, respawning
Oct 7 05:07:39 localhost vpp[1519]: dpdk_config: not enough free huge pages
Oct 7 05:07:39 localhost kernel: [ 4278.670617] init: vpp main process ended, respawning
Oct 7 05:07:39 localhost vpp[1526]: dpdk_config: not enough free huge pages
Oct 7 05:07:39 localhost kernel: [ 4278.700084] init: vpp respawning too fast, stopped
also inside deb file, path was changed:
rw-rr- root/root 548 2016-08-24 23:58 ./usr/lib/sysctl.d/80-vpp.conf
workaround for this is just reinstalling old one (first) build with some newer build (without uninstalling previous), then path is not changed to /usr/lib and file stays in /etc/sysctl.d:
- Applying /etc/sysctl.d/80-vpp.conf ...
i have:
Linux localhost 3.16.0-30-generic #40~14.04.1-Ubuntu SMP Thu Jan 15 17:43:14 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux
Assignee
Andrej Marcinek
Reporter
Andrej Marcinek
Comments
- amarcine (Wed, 26 Oct 2016 10:55:21 +0000): workaround was sufficient to fix this
- mmiklus (Tue, 11 Oct 2016 10:13:20 +0000):
There is a bug in Ubuntu procps upstart script:
https://bugs.launchpad.net/ubuntu/+source/procps/+bug/1632269
- mmiklus (Tue, 11 Oct 2016 09:21:10 +0000): workaround for Ubuntu 14.04:
sudo ln -s /usr/lib/sysctl.d/80-vpp.conf /etc/sysctl.d/80-vpp.conf
**build (28.sep):**
vagrant@localhost:~/vpp_hc/vpp_pbb_6$ cat /usr/lib/sysctl.d/80-vpp.conf
cat: /usr/lib/sysctl.d/80-vpp.conf: No such file or directory
vagrant@localhost:~/vpp_hc/vpp_pbb_6$ cat /etc/sysctl.d/80-vpp.conf
- Number of 2MB hugepages desired
vm.nr_hugepages=1024
- Must be greater than or equal to (2 * vm.nr_hugepages).
vm.max_map_count=3096
- All groups allowed to access hugepages
vm.hugetlb_shm_group=0
-
- Shared Memory Max must be greator or equal to the total size of hugepages.
- For 2MB pages, TotalHugepageSize = vm.nr_hugepages * 2 * 1024 * 1024
- If the existing kernel.shmmax setting (cat /sys/proc/kernel/shmmax)
- is greater than the calculated TotalHugepageSize then set this parameter
- to current shmmax value.
kernel.shmmax=2147483648
**build (4.oct):**
vagrant@localhost:~/vpp_hc/vpp_pbb_7$ cat /usr/lib/sysctl.d/80-vpp.conf
- Number of 2MB hugepages desired
vm.nr_hugepages=1024
- Must be greater than or equal to (2 * vm.nr_hugepages).
vm.max_map_count=3096
- All groups allowed to access hugepages
vm.hugetlb_shm_group=0
-
- Shared Memory Max must be greator or equal to the total size of hugepages.
- For 2MB pages, TotalHugepageSize = vm.nr_hugepages * 2 * 1024 * 1024
- If the existing kernel.shmmax setting (cat /sys/proc/kernel/shmmax)
- is greater than the calculated TotalHugepageSize then set this parameter
- to current shmmax value.
kernel.shmmax=2147483648
vagrant@localhost:~/vpp_hc/vpp_pbb_7$ cat /etc/sysctl.d/80-vpp.conf
cat: /etc/sysctl.d/80-vpp.conf: No such file or directory
- mmiklus (Mon, 10 Oct 2016 14:48:56 +0000): Could you please paste output of:
cat /usr/lib/sysctl.d/80-vpp.conf cat /etc/sysctl.d/80-vpp.conf
Original issue: https://jira.fd.io/browse/VPP-474