12.0-U1 - SMB1 leads to endless core dumps

[Patrick M. Hausen]

Enabling SMB1 support so I can remote install a Supermicro server from a CD image leads to an endless stream of these in log.smbd:

Code:

  ===============================================================
[2020/12/24 10:34:27.392759,  0] ../../lib/util/fault.c:80(fault_report)
  INTERNAL ERROR: Signal 11 in pid 12736 (4.12.9)
  If you are running a recent Samba version, and if you think this problem is not yet fixed in the latest versions, please consider reporting this bug, see https://wiki.samba.org/index.php/Bug_Reporting
[2020/12/24 10:34:27.392784,  0] ../../lib/util/fault.c:86(fault_report)
  ===============================================================
[2020/12/24 10:34:27.392817,  0] ../../source3/lib/util.c:830(smb_panic_s3)
  PANIC (pid 12736): internal error
[2020/12/24 10:34:27.394074,  0] ../../lib/util/fault.c:265(log_stack_trace)
  BACKTRACE: 6 stack frames:
   #0 0x801296217 <log_stack_trace+0x37> at /usr/local/lib/samba4/libsamba-util.so.0
   #1 0x802f9b656 <smb_panic_s3+0x56> at /usr/local/lib/samba4/libsmbconf.so.0
   #2 0x801296007 <smb_panic+0x17> at /usr/local/lib/samba4/libsamba-util.so.0
   #3 0x8012963ee <log_stack_trace+0x20e> at /usr/local/lib/samba4/libsamba-util.so.0
   #4 0x801295fe9 <fault_setup+0x59> at /usr/local/lib/samba4/libsamba-util.so.0
   #5 0x8099dbc20 <_pthread_sigmask+0x530> at /lib/libthr.so.3
[2020/12/24 10:34:27.394272,  0] ../../source3/lib/dumpcore.c:315(dump_core)
  dumping core in /var/db/system/cores
[2020/12/24 10:34:27.433664,  0] ../../lib/util/fault.c:79(fault_report)

Kind regards,
Patrick

 

[Patrick M. Hausen]

Reverting to 12.0-RELEASE fixed this particular issue. SMB1 is working again.

 

[anodos]

Reverting to 12.0-RELEASE fixed this particular issue. SMB1 is working again.

Yeah, there was a particular SMB1 operation that caused a crash due to a fix related to shadow copies. It's fixed for U1.1. PM me if you need a dev snapshot where it's fixed.

 

[Patrick M. Hausen]

I worked around this and the SMTP problem by reverting to 12.0-RELEASE, installed my TrueNAS SCALE via remote media, then re-applied the U1 update. So I can easily wait for U1.1 - thanks for your support and a merry, relaxing and healthy Christmas.

 

[jeannotp]

Hello.
I don't want to steal Patrick's thread but I use TrueNAS-12.0-U1.1 and I have also this issue.

 

[Patrick M. Hausen]

I don't want to steal Patrick's thread but I use TrueNAS-12.0-U1.1 and I have also this issue.

It's supposedly going to be fixed in U2 expected on Feb 2nd. U1.1 was rushed out the door because of severe data corruption issues that took higher priority than SMBv1. Which I can understand and fully support.

Perhaps @anodos can provide a manual patch? Pretty please?