On 5/8/19 12:25 PM, Konstantin Belousov wrote:
Signal 6 is SIGABRT, which means most likely that some assert was triggered.
You should look into your logs.
samba.log shows nothing at level 1 (default); at level 3 gives gobs of
information and I don't look what to look for.
In all.log, however, I have something like this:
May 8 12:48:11 xxxx winbindd[83147]: [2019/05/08 12:48:11.493769, 0]
../source3/libsmb/trusts_util.c:334(trust_pw_change)
May 8 12:48:11 xxxx kernel: May 8 12:48:09 xxxx last message repeated 4 times
May 8 12:48:11 xxxx kernel: May 8 12:48:11 xxxx winbindd[83147]: [2019/05/08
12:48:11.493769, 0] ../source3/libsmb/trusts_util.c:334(trust_pw_change)
May 8 12:48:11 xxxx winbindd[83147]: 2019/05/08 12:48:11 :
trust_pw_change(XX): A password change was already started against
'dc1.ad.xxxxxxxxxxxxx.it' at Mon Apr 29 12:22:51 2019 CEST. Trying to recover...
May 8 12:48:11 xxxx kernel: May 8 12:48:11 xxxx winbindd[83147]: 2019/05/08
12:48:11 : trust_pw_change(XX): A password change was already started against
'dc1.ad.xxxxxxxxxxxxx.it' at Mon Apr 29 12:22:51 2019 CEST. Trying to recover...
May 8 12:48:11 xxxx winbindd[83147]: [2019/05/08 12:48:11.493910, 0]
../source3/libsmb/trusts_util.c:343(trust_pw_change)
May 8 12:48:11 xxxx kernel: May 8 12:48:11 xxxx winbindd[83147]: [2019/05/08
12:48:11.493910, 0] ../source3/libsmb/trusts_util.c:343(trust_pw_change)
May 8 12:48:11 xxxx winbindd[83147]: 2019/05/08 12:48:11 :
trust_pw_change(XX): Last failure local[NT_STATUS_NOT_COMMITTED]
remote[NT_STATUS_CONNECTION_DISCONNECTED] against 'dc1.ad.xxxxxxxxxxxxx.it' at
Wed May 8 12:47:11 2019 CEST.
May 8 12:48:11 xxxx kernel: May 8 12:48:11 xxxx winbindd[83147]: 2019/05/08
12:48:11 : trust_pw_change(XX): Last failure local[NT_STATUS_NOT_COMMITTED]
remote[NT_STATUS_CONNECTION_DISCONNECTED] against 'dc1.ad.xxxxxxxxxxxxx.it' at
Wed
May 8 12:47:11 2019 CEST.
May 8 12:48:11 xxxx winbindd[83147]: [2019/05/08 12:48:11.493986, 0]
../source3/libsmb/trusts_util.c:380(trust_pw_change)
May 8 12:48:11 xxxx kernel: May 8 12:48:11 xxxx winbindd[83147]: [2019/05/08
12:48:11.493986, 0] ../source3/libsmb/trusts_util.c:380(trust_pw_change)
May 8 12:48:11 xxxx winbindd[83147]: 2019/05/08 12:48:11 :
trust_pw_change(XX): Verifying passwords remotely
netlogon_creds_cli:CLI[FS/FS$]/SRV[DC1/XX].
May 8 12:48:11 xxxx kernel: May 8 12:48:11 xxxx winbindd[83147]: 2019/05/08
12:48:11 : trust_pw_change(XX): Verifying passwords remotely
netlogon_creds_cli:CLI[FS/FS$]/SRV[DC1/XX].
May 8 12:48:11 xxxx samba[54713]: stack overflow detected; terminated
May 8 12:48:11 xxxx winbindd[83147]: [2019/05/08 12:48:11.496724, 0]
../source3/libsmb/trusts_util.c:452(trust_pw_change)
May 8 12:48:11 xxxx kernel: May 8 12:48:11 xxxx samba[54713]: stack overflow
detected; terminated
May 8 12:48:11 xxxx kernel: May 8 12:48:11 xxxx winbindd[83147]: [2019/05/08
12:48:11.496724, 0] ../source3/libsmb/trusts_util.c:452(trust_pw_change)
May 8 12:48:11 xxxx winbindd[83147]: 2019/05/08 12:48:11 :
trust_pw_change(XX): Verified old password remotely using
netlogon_creds_cli:CLI[FS/FS$]/SRV[DC1/XX]
May 8 12:48:11 xxxx kernel: May 8 12:48:11 xxxx winbindd[83147]: 2019/05/08
12:48:11 : trust_pw_change(XX): Verified old password remotely using
netlogon_creds_cli:CLI[FS/FS$]/SRV[DC1/XX]
May 8 12:48:11 xxxx winbindd[83147]: [2019/05/08 12:48:11.496828, 0]
../source3/libsmb/trusts_util.c:491(trust_pw_change)
May 8 12:48:11 xxxx kernel: May 8 12:48:11 xxxx winbindd[83147]: [2019/05/08
12:48:11.496828, 0] ../source3/libsmb/trusts_util.c:491(trust_pw_change)
May 8 12:48:11 xxxx winbindd[83147]: 2019/05/08 12:48:11 :
trust_pw_change(XX): Changed password locally
May 8 12:48:11 xxxx kernel: May 8 12:48:11 xxxx winbindd[83147]: 2019/05/08
12:48:11 : trust_pw_change(XX): Changed password locally
May 8 12:48:11 xxxx winbindd[83147]: [2019/05/08 12:48:11.636003, 0]
../source3/libsmb/trusts_util.c:507(trust_pw_change)
May 8 12:48:11 xxxx kernel: pid 54713 (samba), uid 0: exited on signal 6 (core
dumped)
May 8 12:48:11 xxxx kernel: May 8 12:48:11 xxxx winbindd[83147]: [2019/05/08
12:48:11.636003, 0] ../source3/libsmb/trusts_util.c:507(trust_pw_change)
May 8 12:48:11 xxxx winbindd[83147]: 2019/05/08 12:48:11 :
trust_pw_change(XX) remote password change with
netlogon_creds_cli:CLI[FS/FS$]/SRV[DC1/XX] failed -
NT_STATUS_CONNECTION_DISCONNECTED (disconnected)
May 8 12:48:11 xxxx kernel: May 8 12:48:11 xxxx winbindd[83147]: 2019/05/08
12:48:11 : trust_pw_change(XX) remote password change with
netlogon_creds_cli:CLI[FS/FS$]/SRV[DC1/XX] failed -
NT_STATUS_CONNECTION_DISCONNECTED (disconnected
)
May 8 12:48:11 xxxx samba[80265]: [2019/05/08 12:48:11.639630, 0]
../source4/smbd/process_standard.c:158(standard_child_pipe_handler)
May 8 12:48:11 xxxx kernel: May 8 12:48:11 xxxx samba[80265]: [2019/05/08
12:48:11.639630, 0]
../source4/smbd/process_standard.c:158(standard_child_pipe_handler)
May 8 12:48:11 xxxx samba[80265]: standard_child_pipe_handler: Child 54713
() terminated with signal 6
May 8 12:48:11 xxxx kernel: May 8 12:48:11 xxxx samba[80265]:
standard_child_pipe_handler: Child 54713 () terminated with signal 6
While this sheds some light (seems the whole thing has to do with trust
password change), it shows a stack overflow, not an assert.
So the question is two-fold:
a) how do I get out of this? Remove the other member from the domain and
rejoin? Try and fix the DB (how)? Other? (I understand this would be a
question better answere on Samba list, but we are already here).
b) if there's a stack overflow, isn't that a bug? How can I check it and
report it (to FreeBSD or Samba, once the details can let me decide) if I
cannot get a proper core?
I guess I'd have to look into a way to generate debug info with
Poudriere... what's the proper way to do this?
bye & Thanks
av.
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