autobuild[sn-devel-184]: intermittent test failure detected

Sat Mar 30 22:13:05 UTC 2019

The autobuild test system (on sn-devel-184) has detected an intermittent failing test in 
the current master tree.

The autobuild log of the failure is available here:

   https://git.samba.org/autobuild.flakey.sn-devel-184/2019-03-30-2213/flakey.log

The failure seems to be in the "samba-nt4" suite, whose build logs are available here:

   https://git.samba.org/autobuild.flakey.sn-devel-184/2019-03-30-2213/samba-nt4.stderr
   https://git.samba.org/autobuild.flakey.sn-devel-184/2019-03-30-2213/samba-nt4.stdout

The top commit at the time of the failure was:

commit a2b1970a37836e46d6c9eb6bda9bd20185de96ce
Author: Garming Sam <garming at catalyst.net.nz>
Date:   Wed Mar 13 10:52:19 2019 +1300

    acl_read: Fix regression caused by db15fcfa899e1fe4d6994f68ceb299921b8aa6f1 for empty lists

    The original code never dereferenced attrs and only added "*" if attrs
    was NULL (not if attrs[0] was NULL).

    This causes significant performance issues with the new paged_results
    module introduced for 4.10 as the initial GUID search requests no
    attributes. This GUID search turns into a search for "*" and ends up
    allocating memory for the entire database.

    This never appears to cause changes in the final result set, only
    intermediate processing.

    BUG: https://bugzilla.samba.org/show_bug.cgi?id=13836

    Signed-off-by: Garming Sam <garming at catalyst.net.nz>
    Reviewed-by: Andrew Bartlett <abartlet at samba.org>

    Autobuild-User(master): Andrew Bartlett <abartlet at samba.org>
    Autobuild-Date(master): Fri Mar 29 18:37:29 UTC 2019 on sn-devel-144

and the last 50 lines of the stdout log were:

[192(1095)/588 at 22m5s] samba3.raw.seek(nt4_dc)
[193(1096)/588 at 22m5s] samba3.raw.sfileinfo.bug(nt4_dc)
[194(1096)/588 at 22m6s] samba3.raw.streams(nt4_dc)
[195(1109)/588 at 22m12s] samba3.raw.unlink(nt4_dc)
[196(1112)/588 at 22m13s] samba3.raw.write(nt4_dc)
[197(1116)/588 at 22m14s] samba3.raw.samba3hide(nt4_dc)
[198(1117)/588 at 22m15s] samba3.raw.samba3badpath(nt4_dc)
[199(1118)/588 at 22m16s] samba3.raw.sfileinfo.rename(nt4_dc)
[200(1119)/588 at 22m17s] samba3.raw.session plain(nt4_dc)
[201(1121)/588 at 22m17s] samba3.raw.session enc(nt4_dc)
[202(1123)/588 at 22m18s] samba3.raw.samba3caseinsensitive(nt4_dc)
[203(1124)/588 at 22m18s] samba3.raw.samba3posixtimedlock(nt4_dc)
[204(1125)/588 at 22m24s] samba3.raw.samba3rootdirfid(nt4_dc)
[205(1126)/588 at 22m25s] samba3.raw.sfileinfo.end-of-file(nt4_dc)
[206(1127)/588 at 22m25s] samba3.raw.samba3checkfsp(nt4_dc)
[207(1128)/588 at 22m26s] samba3.raw.samba3closeerr(nt4_dc)
[208(1129)/588 at 22m27s] samba3.raw.samba3oplocklogoff(nt4_dc)
[209(1130)/588 at 22m27s] samba3.raw.samba3badnameblob(nt4_dc)
[210(1131)/588 at 22m27s] samba3.smb2.getinfo(nt4_dc)
[211(1137)/588 at 22m29s] samba3.smb2.lock aio(nt4_dc)
[212(1158)/588 at 22m33s] samba3.smb2.lock(nt4_dc)
[213(1179)/588 at 22m39s] samba3.smb2.read(nt4_dc)
[214(1183)/588 at 22m39s] samba3.smb2.aio_delay(nt4_dc)
[215(1184)/588 at 22m44s] samba3.smb2.create(nt4_dc)
[216(1197)/588 at 22m47s] samba3.smb2.twrp(nt4_dc)
[217(1197)/588 at 22m48s] samba3.smb2.acls(nt4_dc)
[218(1210)/588 at 22m55s] samba3.smb2.notify(nt4_dc)
smbtorture 4.11.0pre1-DEVELOPERBUILD
Using seed 1553983872
TESTING VALIDITY OF CHANGE NOTIFY REQUEST
UNEXPECTED(failure): samba3.smb2.notify.valid-req(nt4_dc)
REASON: Exception: Exception: (../../source4/torture/smb2/notify.c:163) wrong value for n.out.num_changes  0x2 should be 0x3

FAILED (1 failures, 0 errors and 0 unexpected successes in 0 testsuites)

A summary with detailed information can be found in:
  ./bin/ab/summary
TOP 10 slowest tests
samba3.blackbox.net.rpc.conf(nt4_dc) -> 113
samba3.raw.notify(nt4_dc) -> 111
samba3.raw.search(nt4_dc) -> 92
samba3.blackbox.net.local.conf(nt4_dc:local) -> 66
samba3.base.dir2(nt4_dc) -> 58
samba3.raw.oplock(nt4_dc) -> 52
samba3.raw.lock(nt4_dc) -> 34
samba3.smbtorture_s3.crypt_client.OPLOCK1(nt4_dc) -> 31
samba3.blackbox.smbclient_s3.SMB3.plain (nt4_dc)(nt4_dc) -> 28
samba3.raw.search(nt4_dc) -> 28
ERROR: test failed with exit code 1
Makefile:16: recipe for target 'test' failed