 27 Apr 2023, Konstantin Olchanski, Forum, Problem with running midas odbxx frontends on a remote machine using the -h option
|
> H
> /home/mu3e/midas/include/odbxx.h:1102: Wrong key type in XML file
> Stack trace:
|
|
27 Apr 2023, Konstantin Olchanski, Forum, Problem with running midas odbxx frontends on a remote machine using the -h option
|
Looks like your MIDAS is built without debug information (-O2 -g), the stack trace does not have file names and line numbers. Please rebuild with debug
information and report the stack trace. Thanks. K.O.
|
|
28 Apr 2023, Martin Mueller, Forum, Problem with running midas odbxx frontends on a remote machine using the -h option
|
> Looks like your MIDAS is built without debug information (-O2 -g), the stack trace does not have file names and line numbers. Please rebuild with debug
information and report the stack trace. Thanks. K.O.
>
|
|
28 Apr 2023, Konstantin Olchanski, Forum, Problem with running midas odbxx frontends on a remote machine using the -h option
|
> As i said we can easily reproduce this with midas/examples/odbxx/odbxx_test.cpp (with cm_connect_experiment changed to "localhost")
> [test,ERROR] [system.cxx:5104:recv_tcp2,ERROR] unexpected connection closure
> [test,ERROR] [system.cxx:5158:ss_recv_net_command,ERROR] error receiving network command header, see messages
|
|
28 Apr 2023, Martin Mueller, Forum, Problem with running midas odbxx frontends on a remote machine using the -h option
|
> > As i said we can easily reproduce this with midas/examples/odbxx/odbxx_test.cpp (with cm_connect_experiment changed to "localhost")
> > [test,ERROR] [system.cxx:5104:recv_tcp2,ERROR] unexpected connection closure
> > [test,ERROR] [system.cxx:5158:ss_recv_net_command,ERROR] error receiving network command header, see messages
|
|
28 Apr 2023, Konstantin Olchanski, Forum, Problem with running midas odbxx frontends on a remote machine using the -h option
|
> > > As i said we can easily reproduce this with midas/examples/odbxx/odbxx_test.cpp
> > ok, cool. looks like we crashed the mserver.
> Ok. Maybe i have to make this more clear. ANY odbxx access of a remote odb reproduces this error for us on multiple machines.
|
|
02 May 2023, Niklaus Berger, Forum, Problem with running midas odbxx frontends on a remote machine using the -h option
|
Thanks for all the helpful hints. When finally managing to evade all timeouts and attach the debugger in just the right moment, we find that we get a segfault
in mserver at L827:
case RPC_DB_COPY_XML:
|
|
02 May 2023, Niklaus Berger, Forum, Problem with running midas odbxx frontends on a remote machine using the -h option
|
And now we also fixed the client segfault, odb.cxx L8992 also needs to know about the header:
if (rpc_is_remote())
return rpc_call(RPC_DB_COPY_XML, hDB, hKey, buffer, buffer_size, header);
|
|
02 May 2023, Stefan Ritt, Forum, Problem with running midas odbxx frontends on a remote machine using the -h option
|
> Shall I create a pull request for the additional RPC argument or will you just fix this on the fly?
|
 08 Jul 2021, Francesco Renga, Forum, Problem with python file reader
|
Dear experts,
while trying to readout a MIDAS file from a python script. I get the error below at the very first event. Any hint?
|
|
09 Jul 2021, Ben Smith, Forum, Problem with python file reader
|
Hi Francesco,
Can you send me an example file to look at please? Either attached to the elog or sent directly to bsmith@triumf.ca
|
|
26 Apr 2017, Francesco Renga, Forum, Problem with logger at run start
|
Dear experts,
we have a problem when trying to run a MIDAS DAQ which worked in the past on the same PC (but on a different
network). We get the following error messages when starting a new run:
|
|
26 Apr 2017, Stefan Ritt, Forum, Problem with logger at run start
|
Dear Francesco,
Your error (No route to host) typically means that you have a network problem outside of MIDAS. Your computer has to "find itself" and
|
|
26 Apr 2017, Francesco Renga, Forum, Problem with logger at run start
|
Dear Stefan,
thank you very much for your reply. We could finally fix the problem by replacing "scarlett" with "scarlett.localdomain" in our
hostname configuration file /etc/hostname (under debian).
|
|
02 May 2017, Konstantin Olchanski, Forum, Problem with logger at run start
|
> Wed Apr 26 23:03:12 2017 [mhttpd,ERROR] [midas.c:9106:rpc_client_connect,ERROR] cannot connect to host "scar
> lett", port 44858: connect() returned -1, errno 113 (No route to host)
|
|
14 Oct 2014, Konstantin Olchanski, Bug Report, Problem with EQ_USER
|
If you use EQ_USER in mfe.c and have multiple threads writing into the ring buffer, you will have a big
problem - the thread locking in the ring buffer code only works for a single writer thread and a single
reader thread.
|
|
15 Oct 2014, Stefan Ritt, Bug Report, Problem with EQ_USER
|
Sure, each thread needs its own ring buffer for writing.
So I see that we need back the multiple-ring-buffer-readout-scheme even before MEG will start. So what you need is something like
|
|
16 Oct 2014, Stefan Ritt, Bug Report, Problem with EQ_USER
|
I restructured the front-end code to enable multiple readout threads for EQ_USER equipment. Last summer I was definitively interrupted during
that work and left it in an half finished state, sorry for that.
|
|
10 Aug 2012, Carl Blaksley, Forum, Problem with CAMAC controlled by CES8210 and read out by CAEN V1718 VME controller
|
Hello all,
I am trying to put together a system to read out several camac adc. The camac is
|
|
22 Feb 2016, ZiyiGuo, Forum, Problem with BLTRead
|
Dear all,
I'm using MIDAS system and CAEN V1721 to digitize the waveform from photomultipliers (
|