[Bug 1783881] Re: ltp-syscalls: msgstress03 fails because systemd limits number of processes

Fri Oct 2 17:02:23 UTC 2020

Updating bug to include msgstress04 failure.

msgstress04 - part of log from F aws : 5.4.0-1026.26 : amd64

12969. 	09/23 17:30:15 DEBUG| utils:0153| [stdout] startup='Wed Sep 23 17:11:41 2020'
12970. 	09/23 17:30:15 DEBUG| utils:0153| [stdout] msgstress04 0 TINFO : Found 32000 available message queues
12971. 	09/23 17:30:15 DEBUG| utils:0153| [stdout] msgstress04 0 TINFO : Using upto 2097063 pids
12972. 	09/23 17:30:15 DEBUG| utils:0153| [stdout] Fork failure in the second child of child group 9217
12973. 	09/23 17:30:15 DEBUG| utils:0153| [stdout] Fork failure in the second child of child group 9237
12974. 	09/23 17:30:15 DEBUG| utils:0153| [stdout] Fork failure in the first child of child group 9202
12975. 	09/23 17:30:15 DEBUG| utils:0153| [stdout] Fork failure in the second child of child group 9251
12976. 	09/23 17:30:15 DEBUG| utils:0153| [stdout] Fork failure in the first child of child group 9273
12977. 	09/23 17:30:15 DEBUG| utils:0153| [stdout] Fork failure in the second child of child group 9277
12978. 	09/23 17:30:15 DEBUG| utils:0153| [stdout] Fork failure in the first child of child group 9275
12979. 	09/23 17:30:15 DEBUG| utils:0153| [stdout] Fork failure in the second child of child group 9276
12980. 	09/23 17:30:15 DEBUG| utils:0153| [stdout] Fork failure in the first child of child group 9278
12981. 	09/23 17:30:15 DEBUG| utils:0153| [stdout] Fork failure in the second child of child group 9279
12982. 	09/23 17:30:15 DEBUG| utils:0153| [stdout] Fork failure in the first child of child group 9248
12983. 	09/23 17:30:15 DEBUG| utils:0153| [stdout] Fork failure in the second child of child group 9262
12984. 	09/23 17:30:15 DEBUG| utils:0153| [stdout] Fork failure in the second child of child group 9274
12985. 	09/23 17:30:15 DEBUG| utils:0153| [stdout] Fork failure in the second child of child group 9310
12986. 	09/23 17:30:15 DEBUG| utils:0153| [stdout] Fork failure in the second child of child group 9290
12987. 	09/23 17:30:15 DEBUG| utils:0153| [stdout] Fork failure in the second child of child group 9314
12988. 	09/23 17:30:15 DEBUG| utils:0153| [stdout] Fork failure in the first child of child group 9315
12989. 	09/23 17:30:15 DEBUG| utils:0153| [stdout] Fork failure in the first child of child group 9316
12990. 	09/23 17:30:15 DEBUG| utils:0153| [stdout] Fork failure in the second child of child group 9309
12991. 	09/23 17:30:15 DEBUG| utils:0153| [stdout] Fork failure in the first child of child group 9325
12992. 	09/23 17:30:15 DEBUG| utils:0153| [stdout] Fork failure in the first child of child group 9326
12993. 	09/23 17:30:15 DEBUG| utils:0153| [stdout] Fork failure in the second child of child group 9298
12994. 	09/23 17:30:15 DEBUG| utils:0153| [stdout] Fork failure in the second child of child group 9327
12995. 	09/23 17:30:15 DEBUG| utils:0153| [stdout] Fork failure in the second child of child group 9308
12996. 	09/23 17:30:15 DEBUG| utils:0153| [stdout] Fork failure in the second child of child group 9324
12997. 	09/23 17:30:15 DEBUG| utils:0153| [stdout] Fork failure in the first child of child group 9357
12998. 	09/23 17:30:15 DEBUG| utils:0153| [stdout] msgstress04 1 TFAIL : msgstress04.c:204: Fork failed (may be OK if under stress)
12999. 	09/23 17:30:15 DEBUG| utils:0153| [stdout] tag=msgstress04 stime=1600881101 dur=169 exit=exited stat=1 core=no cu=14 cs=136

** Summary changed:

- ltp-syscalls: msgstress03 fails because systemd limits number of processes
+ ltp-syscalls: msgstress03 / msgstress04 fails because systemd limits number of processes

** Tags added: 5.4 aws

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https://bugs.launchpad.net/bugs/1783881

Title:
  ltp-syscalls: msgstress03 / msgstress04 fails because systemd limits
  number of processes

Status in ubuntu-kernel-tests:
  Triaged
Status in linux package in Ubuntu:
  Incomplete
Status in linux-azure package in Ubuntu:
  New
Status in systemd package in Ubuntu:
  Incomplete
Status in linux source package in Xenial:
  New
Status in linux-azure source package in Xenial:
  New
Status in systemd source package in Xenial:
  New
Status in linux source package in Bionic:
  New
Status in linux-azure source package in Bionic:
  New
Status in systemd source package in Bionic:
  New

Bug description:
  As systemd limits the number of processes, this test will fail because
  it can't fork enough processes. That is limited to when the test is
  run after logging as user 1000, then running sudo. I guess that
  logging as root may not cause this to happen.

  # ./testcases/bin/msgstress03 
  Fork failed (may be OK if under stress)
  Fork failed (may be OK if under stress)
  msgstress03    1  TFAIL  :  msgstress03.c:157:  Fork failed (may be OK if under stress)
  #

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