linux-kernel - LTP: crypto: af_alg02 regression on linux-next 20200621 tag

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Date:   Tue, 23 Jun 2020 00:04:06 +0530
From:   Naresh Kamboju <naresh.kamboju@...aro.org>
To:     LTP List <ltp@...ts.linux.it>,
        open list <linux-kernel@...r.kernel.org>,
        linux-security-module@...r.kernel.org, keyrings@...r.kernel.org,
        lkft-triage@...ts.linaro.org, linux-crypto@...r.kernel.org
Cc:     Herbert Xu <herbert@...dor.apana.org.au>,
        Jan Stancek <jstancek@...hat.com>, chrubis <chrubis@...e.cz>,
        "Serge E. Hallyn" <serge@...lyn.com>,
        James Morris <jmorris@...ei.org>,
        Jarkko Sakkinen <jarkko.sakkinen@...ux.intel.com>,
        David Howells <dhowells@...hat.com>,
        Luis Chamberlain <mcgrof@...nel.org>,
        "David S. Miller" <davem@...emloft.net>,
        Eric Biggers <ebiggers@...gle.com>
Subject: LTP: crypto: af_alg02 regression on linux-next 20200621 tag

LTP crypto regressions noticed on linux next 20200621.

The common case for all tests is timeout after 15 minutes which
means tests got hung and LTP timers killed those test runs after
timeout.
The root cause of the failure is under investigation.

  ltp-crypto-tests:
    * af_alg02 - failed
    * af_alg05 - failed
  ltp-syscalls-tests:
    * keyctl07 - failed
    * request_key03 - failed

Output log:
--------------
af_alg02:
af_alg02.c:52: BROK: Timed out while reading from request socket.

Test code at line number 52 is

pthread_setcancelstate(PTHREAD_CANCEL_ENABLE, NULL);
SAFE_PTHREAD_CREATE(&thr, NULL, verify_encrypt, NULL);

TST_CHECKPOINT_WAIT(0);

while (pthread_kill(thr, 0) != ESRCH) {
    if (tst_timeout_remaining() <= 10) {
        pthread_cancel(thr);
        tst_brk(TBROK,
                   "Timed out while reading from request socket.");

af_alg05:
tst_test.c:1246: INFO: Timeout per run is 0h 15m 00s
[  362.599868] kworker/dying (137) used greatest stack depth: 11600 bytes left
Test timeouted, sending SIGKILL!
tst_test.c:1286: INFO: If you are running on slow machine, try
exporting LTP_TIMEOUT_MUL > 1
tst_test.c:1287: BROK: Test killed! (timeout?)

request_key03:
tst_test.c:1246: INFO: Timeout per run is 0h 15m 00s
request_key03.c:65: CONF: kernel doesn't support key type 'encrypted'
request_key03.c:65: CONF: kernel doesn't support key type 'trusted'
Test timeouted, sending SIGKILL!
tst_test.c:1286: INFO: If you are running on slow machine, try
exporting LTP_TIMEOUT_MUL > 1
tst_test.c:1287: BROK: Test killed! (timeout?)

keyctl07
tst_test.c:1246: INFO: Timeout per run is 0h 15m 00s
Test timeouted, sending SIGKILL!
tst_test.c:1286: INFO: If you are running on slow machine, try
exporting LTP_TIMEOUT_MUL > 1
tst_test.c:1287: BROK: Test killed! (timeout?)

metadata:
  git branch: master
  git repo: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git
  git commit: 5a94f5bc041ea9e4d17c93b11ea6f6a2e5ad361b
  git describe: next-20200621
  kernel-config:
https://builds.tuxbuild.com/PB-45Luvlx0yYJ8MZgpijA/kernel.config

ref:
https://lkft.validation.linaro.org/scheduler/job/1511938#L2211
https://lkft.validation.linaro.org/scheduler/job/1511935#L9225

- Naresh