 28 Jan 2016, Amy Roberts, Suggestion, script command limited to 256 characters; remove limit?
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Using low-level memory allocation routines in higher-level programs like mhttpd makes me nervous.
We could use vector arrays to allow variable-sized allocation, and use the data() member function to access the char* needed for functions like strlcat,
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26 Feb 2016, Konstantin Olchanski, Suggestion, script command limited to 256 characters; remove limit?
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> Using low-level memory allocation routines in higher-level programs like mhttpd makes me nervous.
It should not, people have used malloc() for decades now without much injury to themselves. (Thomas corrects me: some people had big injury to their pride, |
 24 Sep 2023, Frederik Wauters, Suggestion, scroll when browsing for a link
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Another small user experience request:
When making a link in the odb (web interface) a nice browser window pop's up. There is however not scrolling possible in the window. As a result, you can |
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26 Sep 2023, Stefan Ritt, Suggestion, scroll when browsing for a link
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> When making a link in the odb (web interface) a nice browser window pop's up. There is however not scrolling possible in the window. As a result, you
can not reach a odb key if it is nested to deeply.
>
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05 Feb 2007, Fedor Ignatov, Bug Report, segmentation violation of analyzer on a x86_64
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Hello,
When I connect to analyzer on a x86_64 processor(with Roody),
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06 Feb 2007, Stefan Ritt, Bug Report, segmentation violation of analyzer on a x86_64
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> Hello,
>
> When I connect to analyzer on a x86_64 processor(with Roody),
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06 Feb 2007, Fedor Ignatov, Bug Report, segmentation violation of analyzer on a x86_64
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Yes right, Problem of a segmentation violation is solved with this patch. Now it works
fine on x86_64.
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17 Feb 2007, Konstantin Olchanski, Bug Report, segmentation violation of analyzer on a x86_64
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> Yes right, Problem of a segmentation violation is solved with this patch. Now it works
> fine on x86_64.
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19 Aug 2021, Konstantin Olchanski, Bug Report, select() FD_SETSIZE overrun
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I am looking at the mlogger in the ALPHA anti-hydrogen experiment at CERN. It is
mysteriously misbehaving during run start and stop.
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20 Aug 2021, Stefan Ritt, Bug Report, select() FD_SETSIZE overrun
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> I am looking at the mlogger in the ALPHA anti-hydrogen experiment at CERN. It is
> mysteriously misbehaving during run start and stop.
>
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11 Feb 2013, Wes Gohn, Forum, send_tcp error
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I am getting a series of errors from MIDAS that I do not understand, so I hope
someone can help me figure this out.
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11 Feb 2013, Stefan Ritt, Forum, send_tcp error
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> I am getting a series of errors from MIDAS that I do not understand, so I hope
> someone can help me figure this out.
>
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11 Feb 2013, Wes Gohn, Forum, send_tcp error
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> > I am getting a series of errors from MIDAS that I do not understand, so I hope
> > someone can help me figure this out.
> >
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12 Feb 2013, Stefan Ritt, Forum, send_tcp error
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Ok, now the picture is clearer. I have however no idea what the real problem is. The number of concurrent programs in midas is 64 as defined in midas.h
(MAX_CLIENTS) so that should not be the problem. In our experiment we run 10 front-ends (but
on 10 different machines) without problems. Other experiments used 27 front-ends.
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19 Feb 2013, Wes Gohn, Forum, send_tcp error
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Thank you for the help. As it turns out, the problem was due to the fact that we were compiling MIDAS on our 64 bit backend machine, but one of the frontend |
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20 Nov 2003, Konstantin Olchanski, , set-uid-root midas programs
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I see that MIDAS installs several set-uid-root programs into /usr/local/bin.
In this age and time of evil computer hackers, this is not a good idea and
we should Do Something (TM) about it. Here is my risk assessment:
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20 Nov 2003, Stefan Ritt, , set-uid-root midas programs
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> dio- is required to be setuid-root to gain I/O permissions. I looked at it a
> few times, and it is probably safe, but I would like to get a second
> opinion. Stephan, can you should it to your local security geeks?
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05 Jul 2024, Joseph McKenna, Suggestion, shared pointers for more flexible memory managment of the analysis 'flow' and TMEvent
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> Hi all, I hope this is the right place to post two pull requests, if not, please let me know where I should be submitting them
>
> Both are fairly small changes, please see them listed below (more details written on the PRs themselves)
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02 Mar 2021, Konstantin Olchanski, Info, shortest possible sleep
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since I am implementing a polled equipment, I was curious what is the smallest possible sleep time on current computers.
in current UNIX, there are 2 system calls available for sleeping: select() (with microsecond granularity) and nanosleep() (with nanosecond granularity).
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02 Mar 2021, Stefan Ritt, Info, shortest possible sleep
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Why do you need that? Periodic equipment typically runs ever ten seconds or so, meaning one can do this easily in a scheduler.
For polled equipment, you don't want to sleep at all. Because if you sleep, you might miss an event. That's why I put my poll in mfe.c into a for() loop. |