Re: SLIME/Swank problem with swank.util.sys/get-pid and RuntimeMXBean
"Steven E. Harris" writes: >> There was some discussion about it a couple months ago: > > I picked up the torch today, in hope that others will try again for a > better resolution: > > http://thread.gmane.org/gmane.lisp.slime.devel/9178/focus=9383 Thanks for digging. I'll keep this around to show to anyone else in the future who might be inclined to go further with it. -Phil -- You received this message because you are subscribed to the Google Groups "Clojure" group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
Re: SLIME/Swank problem with swank.util.sys/get-pid and RuntimeMXBean
Phil Hagelberg writes: > There was some discussion about it a couple months ago: I picked up the torch today, in hope that others will try again for a better resolution: http://thread.gmane.org/gmane.lisp.slime.devel/9178/focus=9383 -- Steven E. Harris -- You received this message because you are subscribed to the Google Groups "Clojure" group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
Re: SLIME/Swank problem with swank.util.sys/get-pid and RuntimeMXBean
"Steven E. Harris" writes: > Phil Hagelberg writes: > >> If someone would volunteer to fix it, I'd be thrilled. Nobody who is >> interested in using CL and Clojure at the same time has stepped >> forward so far, which is why it's currently broken. > > Can you characterize what needs to be fixed? There was some discussion about it a couple months ago: http://groups.google.com/group/clojure/browse_thread/thread/3e5f416e3f2a1884 Unfortunately I don't have the resources to pursue it myself. -Phil -- You received this message because you are subscribed to the Google Groups "Clojure" group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
Re: SLIME/Swank problem with swank.util.sys/get-pid and RuntimeMXBean
I've reverted to the setup that you listed, Ramakrishnan. I spent quite a few hours trying to figure out how to use ELPA + the forked slime + the new swank clojure, but failed miserably (despite the kind assistance of Phil and others on another thread). I would agree that it would be nice to have the option of installing packages oneself, since if an automatic package management system is relied on, and it fails, it can be very difficult to figure out how to fix things. On Jan 8, 1:03 am, Ramakrishnan Muthukrishnan wrote: > On Fri, Jan 8, 2010 at 12:57 PM, Richard Newman wrote: > >> I don't want to have to use ELPA, or maven, or some other configuration > >> management thing to get basic tools like an editing environment for the > >> language up and running. Perhaps I should just bite the bullet and use the > >> crazy configuration/package management things that the clojure community > >> seems so enamored of (ELPA, maven, leiningen, etc...), but in the way I'm > >> used to doing things, nothing more than the source code and a fairly simple > >> system definition tool (like ASDF) are enough to get things done. It's not > >> too say that there's room for improvement, but I like it when simple tools > >> get the job done and I don't need to rely on a bunch of shell scripts, to > >> have to modify classpaths, restart JVMs, etc... to get the code I want > >> loaded. Perhaps I'm just ignorant of the proper clojure-y way to do things, > >> so I'll hop off my soapbox now. > > > I think I'm pretty familiar with the Clojure-y way to do things, and I also > > close the tab when I see "... using Maven". > > I am alien to the Java world and haven't still embrased ELPA, lein and > other tools. Here is my setup which works fine for me: > > o. slime > git://git.boinkor.net/slime.git > > o. swank-clojure > git://github.com/jochu/swank-clojure.git > > o. clojure-mode > git://github.com/jochu/clojure-mode.git > > It has worked quite nicely for me until now. I also discovered the > other branch of swank-clojure, which seem to be what people are using > more. I see that it does things like downloading jars etc etc. I would > rather like it to leave them for other tools to do. I have no problem > installing emacs scripts by hand. If so, I wouldn't be using it > anyway, so I just don't see why ELPA and the other swank-clojure > branch is trying to do things that other tools are supposed to do. > > -- > Ramakrishnan -- You received this message because you are subscribed to the Google Groups "Clojure" group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
Re: SLIME/Swank problem with swank.util.sys/get-pid and RuntimeMXBean
On Fri, Jan 8, 2010 at 12:57 PM, Richard Newman wrote: >> I don't want to have to use ELPA, or maven, or some other configuration >> management thing to get basic tools like an editing environment for the >> language up and running. Perhaps I should just bite the bullet and use the >> crazy configuration/package management things that the clojure community >> seems so enamored of (ELPA, maven, leiningen, etc...), but in the way I'm >> used to doing things, nothing more than the source code and a fairly simple >> system definition tool (like ASDF) are enough to get things done. It's not >> too say that there's room for improvement, but I like it when simple tools >> get the job done and I don't need to rely on a bunch of shell scripts, to >> have to modify classpaths, restart JVMs, etc... to get the code I want >> loaded. Perhaps I'm just ignorant of the proper clojure-y way to do things, >> so I'll hop off my soapbox now. > > I think I'm pretty familiar with the Clojure-y way to do things, and I also > close the tab when I see "... using Maven". I am alien to the Java world and haven't still embrased ELPA, lein and other tools. Here is my setup which works fine for me: o. slime git://git.boinkor.net/slime.git o. swank-clojure git://github.com/jochu/swank-clojure.git o. clojure-mode git://github.com/jochu/clojure-mode.git It has worked quite nicely for me until now. I also discovered the other branch of swank-clojure, which seem to be what people are using more. I see that it does things like downloading jars etc etc. I would rather like it to leave them for other tools to do. I have no problem installing emacs scripts by hand. If so, I wouldn't be using it anyway, so I just don't see why ELPA and the other swank-clojure branch is trying to do things that other tools are supposed to do. -- Ramakrishnan -- You received this message because you are subscribed to the Google Groups "Clojure" group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
Re: SLIME/Swank problem with swank.util.sys/get-pid and RuntimeMXBean
Phil Hagelberg writes: > If someone would volunteer to fix it, I'd be thrilled. Nobody who is > interested in using CL and Clojure at the same time has stepped > forward so far, which is why it's currently broken. Can you characterize what needs to be fixed? -- Steven E. Harris -- You received this message because you are subscribed to the Google Groups "Clojure" group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
Re: SLIME/Swank problem with swank.util.sys/get-pid and RuntimeMXBean
I don't want to have to use ELPA, or maven, or some other configuration management thing to get basic tools like an editing environment for the language up and running. Perhaps I should just bite the bullet and use the crazy configuration/package management things that the clojure community seems so enamored of (ELPA, maven, leiningen, etc...), but in the way I'm used to doing things, nothing more than the source code and a fairly simple system definition tool (like ASDF) are enough to get things done. It's not too say that there's room for improvement, but I like it when simple tools get the job done and I don't need to rely on a bunch of shell scripts, to have to modify classpaths, restart JVMs, etc... to get the code I want loaded. Perhaps I'm just ignorant of the proper clojure-y way to do things, so I'll hop off my soapbox now. I think I'm pretty familiar with the Clojure-y way to do things, and I also close the tab when I see "... using Maven". My setup is: * Installing some trivial Emacs stuff through ELPA (but not all: e.g., some packages fail to build). I'm a recent Emacs convert, so this seemed easy. * Building swank-clojure myself. * Installing the Emacs side myself the old-fashioned way. * Storing my stuff in git. * Building jars using ant. * Launching the appropriate swank server with the right classpath using a generic 'swank-clj' script that understands the same .clojure files as my 'clj' script. No Maven, little ELPA, no Clojure project-building scripts, nothing swank-related configured through emacs. I don't like libraries which want to download their own dependency jars: most projects on which I work integrate at least a dozen libraries, many of which share dependencies (Commons Logging, for example), and I inevitably need to manage those myself. Neither do I want a tool to download a Clojure jar for me: I manage that myself, because I want to keep up-to-date, and I need to maintain patches against contrib. Every time I've tried to use Maven I've given up in disgust as it downloaded hundreds of megs of jars I already had, and didn't want to have to manually re-package for my company's existing deployment infrastructure. Ah, Java. -- You received this message because you are subscribed to the Google Groups "Clojure" group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
Re: SLIME/Swank problem with swank.util.sys/get-pid and RuntimeMXBean
I agree with Steven on this. As one who uses emacs and SLIME for both common lisp and clojure, I'd like to be able to use the current SLIME HEAD for clojure development work. I consider the fact that swank-clojure and the SLIME HEAD don't play nicely with each other to be a deficiency of swank-clojure. It may be that the "right" fix is to fix SLIME, but I see recommending a different mechanism of installing SLIME (via ELPA) as the fix to be an ugly hack. My personal hack-fix-of-choice is to check out version 3b3f604c396f0c5ceb8bc5a13fa41061bcc96184 from the slime git repo. It's true that this is fundamentally no better than what ELPA is doing, but at least I know what version of SLIME i need to make things work. It would be great if swank-clojure and/or slime were fixed so that the SLIME HEAD worked with swank-clojure. I don't want to have to use ELPA, or maven, or some other configuration management thing to get basic tools like an editing environment for the language up and running. Perhaps I should just bite the bullet and use the crazy configuration/package management things that the clojure community seems so enamored of (ELPA, maven, leiningen, etc...), but in the way I'm used to doing things, nothing more than the source code and a fairly simple system definition tool (like ASDF) are enough to get things done. It's not too say that there's room for improvement, but I like it when simple tools get the job done and I don't need to rely on a bunch of shell scripts, to have to modify classpaths, restart JVMs, etc... to get the code I want loaded. Perhaps I'm just ignorant of the proper clojure-y way to do things, so I'll hop off my soapbox now. cyrus On Jan 7, 2010, at 5:38 PM, Steven E. Harris wrote: > Phil Hagelberg writes: > >> Could you try installing SLIME via ELPA as recommended in the >> swank-clojure readme? > > That will be a project I'll have to defer until the weekend, as I've > never used ELPA. I use the CVS SLIME almost daily for Common Lisp work, > so I'm reluctant to give it up. Also, it's not a tenable situation to > fork SLIME for Clojure support. > >> CVS head is known to have introduced incompatibilities with Clojure. > > Is the git repository at git://git.boinkor.net/slime.git just tracking > the CVS repository, or is that the same as the ELPA-hosted one? I did > try all of this with the git version and found the exact same behavior > as with the CVS version. > > -- > Steven E. Harris > > -- > You received this message because you are subscribed to the Google > Groups "Clojure" group. > To post to this group, send email to clojure@googlegroups.com > Note that posts from new members are moderated - please be patient with your > first post. > To unsubscribe from this group, send email to > clojure+unsubscr...@googlegroups.com > For more options, visit this group at > http://groups.google.com/group/clojure?hl=en -- You received this message because you are subscribed to the Google Groups "Clojure" group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
Re: SLIME/Swank problem with swank.util.sys/get-pid and RuntimeMXBean
"Steven E. Harris" writes: >> Could you try installing SLIME via ELPA as recommended in the >> swank-clojure readme? > > That will be a project I'll have to defer until the weekend, as I've > never used ELPA. I use the CVS SLIME almost daily for Common Lisp work, > so I'm reluctant to give it up. Also, it's not a tenable situation to > fork SLIME for Clojure support. If someone would volunteer to fix it, I'd be thrilled. Nobody who is interested in using CL and Clojure at the same time has stepped forward so far, which is why it's currently broken. >> CVS head is known to have introduced incompatibilities with Clojure. > > Is the git repository at git://git.boinkor.net/slime.git just tracking > the CVS repository, or is that the same as the ELPA-hosted one? I did > try all of this with the git version and found the exact same behavior > as with the CVS version. Yes, that git repo is just a mirror of CVS. -Phil -- You received this message because you are subscribed to the Google Groups "Clojure" group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
Re: SLIME/Swank problem with swank.util.sys/get-pid and RuntimeMXBean
Phil Hagelberg writes: > Could you try installing SLIME via ELPA as recommended in the > swank-clojure readme? That will be a project I'll have to defer until the weekend, as I've never used ELPA. I use the CVS SLIME almost daily for Common Lisp work, so I'm reluctant to give it up. Also, it's not a tenable situation to fork SLIME for Clojure support. > CVS head is known to have introduced incompatibilities with Clojure. Is the git repository at git://git.boinkor.net/slime.git just tracking the CVS repository, or is that the same as the ELPA-hosted one? I did try all of this with the git version and found the exact same behavior as with the CVS version. -- Steven E. Harris -- You received this message because you are subscribed to the Google Groups "Clojure" group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
Re: SLIME/Swank problem with swank.util.sys/get-pid and RuntimeMXBean
"Steven E. Harris" writes: > Here's the stack: > > o swank-clojure > Git head. > > o SLIME > Both CVS head and git://git.boinkor.net/slime.git head behave the same > way, as the offending calls are in swank-clojure. Could you try installing SLIME via ELPA as recommended in the swank-clojure readme? CVS head is known to have introduced incompatibilities with Clojure. -Phil -- You received this message because you are subscribed to the Google Groups "Clojure" group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
Re: SLIME/Swank problem with swank.util.sys/get-pid and RuntimeMXBean
Rob Wolfe writes: > Do you use "slime-indentation.el" in your configuration? Yes. It turns out that I have another Lisp-related initialization file that contained the following form: , | (slime-setup '(slime-fancy |slime-asdf |slime-fontifying-fu |slime-indentation |slime-indentation-fu |slime-banner)) ` Removing the indentation-related entries fixed the `etypecase' Elisp error. Unfortunately, the SLIME-Swank handshake still doesn't complete (and hence the SLIME REPL doesn't start up) without the aforementioned prodding. -- Steven E. Harris -- You received this message because you are subscribed to the Google Groups "Clojure" group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
Re: SLIME/Swank problem with swank.util.sys/get-pid and RuntimeMXBean
"Steven E. Harris" writes: > "Steven E. Harris" writes: > >> Now get this: Right before the SLIME-Swank connection completes, Emacs >> beeps and prints the following two lines in the *Messages* buffer: >> >> , >> | error in process filter: cond: etypecase failed: defun, (number cons >> string) >> | error in process filter: etypecase failed: defun, (number cons string) >> ` > > I caught the Emacs debugger trace here: > > http://paste.lisp.org/display/92936 > > It looks to be a problem parsing the indentation recommendations sent > from Swank. Do you use "slime-indentation.el" in your configuration? I can see in this trace "define-cl-indent" function, which is not defined in my configuration. I added this line to my configuration: (require 'slime-indentation) and now I have almost the same problem as you: """ Polling "/tmp/slime.5593".. (Abort with `M-x slime-abort-connection'.) [32 times] Connecting to Swank on port 57580.. [2 times] error in process filter: cond: etypecase failed: defun, (number cons string) error in process filter: etypecase failed: defun, (number cons string) """ As a matter of fact *slime repl* still works for me, but I have different environment. HTH, Rob -- You received this message because you are subscribed to the Google Groups "Clojure" group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
Re: SLIME/Swank problem with swank.util.sys/get-pid and RuntimeMXBean
"Steven E. Harris" writes: > Now get this: Right before the SLIME-Swank connection completes, Emacs > beeps and prints the following two lines in the *Messages* buffer: > > , > | error in process filter: cond: etypecase failed: defun, (number cons string) > | error in process filter: etypecase failed: defun, (number cons string) > ` I caught the Emacs debugger trace here: http://paste.lisp.org/display/92936 It looks to be a problem parsing the indentation recommendations sent from Swank. -- Steven E. Harris -- You received this message because you are subscribed to the Google Groups "Clojure" group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
Re: SLIME/Swank problem with swank.util.sys/get-pid and RuntimeMXBean
Rich Hickey writes: > Perhaps it would be best to paste such dumps somewhere, rather than > mail to the entire list? I'll do that next time. Sorry for the noise. -- Steven E. Harris -- You received this message because you are subscribed to the Google Groups "Clojure" group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
Re: SLIME/Swank problem with swank.util.sys/get-pid and RuntimeMXBean
> Perhaps it would be best to paste such dumps somewhere, rather than > mail to the entire list? Might I suggest http://paste.lisp.org/ ? -- You received this message because you are subscribed to the Google Groups "Clojure" group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
Re: SLIME/Swank problem with swank.util.sys/get-pid and RuntimeMXBean
On Sat, Jan 2, 2010 at 11:03 AM, Steven E. Harris wrote: > "Steven E. Harris" writes: > >> In the meantime, I'll continue the investigation. > > Here are two thread dumps of the Java process running Clojure and Swank, > which, at this time, has a live Clojure REPL, but the Swank call to > `connection-info' hasn't completed yet. > Perhaps it would be best to paste such dumps somewhere, rather than mail to the entire list? Thanks, Rich -- You received this message because you are subscribed to the Google Groups "Clojure" group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
Re: SLIME/Swank problem with swank.util.sys/get-pid and RuntimeMXBean
"Steven E. Harris" writes: > In the meantime, I'll continue the investigation. And yet more information: Apparently it's not critical to call on the RuntimeMXBean#getName() method specifically to kick the Swank thread out of its blocking call; just about /any call on a Java method/ from the Clojure REPL will unblock the Swank thread and make the connection complete. For example, I've tried calling java.util.concurrent.Executors#newSingleThreadExecutor() java.util.Collections#emptySet() java.lang.Math#max() and both work to unblock the Swank thread, but this one does not: java.lang.Integer#parseInt() Now get this: Right before the SLIME-Swank connection completes, Emacs beeps and prints the following two lines in the *Messages* buffer: , | error in process filter: cond: etypecase failed: defun, (number cons string) | error in process filter: etypecase failed: defun, (number cons string) ` Those errors messages come from the ELisp evaluator. Strangely, I can't find any etypecase or typecase form in file slime.el that tolerates all three of those types (number, cons, and string), so it's hard to figure out where the error is arising. -- Steven E. Harris -- You received this message because you are subscribed to the Google Groups "Clojure" group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
Re: SLIME/Swank problem with swank.util.sys/get-pid and RuntimeMXBean
"Steven E. Harris" writes: > In the meantime, I'll continue the investigation. Here are two thread dumps of the Java process running Clojure and Swank, which, at this time, has a live Clojure REPL, but the Swank call to `connection-info' hasn't completed yet. This first one comes via jvisualvm: == 2010-01-02 10:55:39 Full thread dump Java HotSpot(TM) Client VM (14.3-b01 mixed mode, sharing): "RMI TCP Connection(4)-192.168.1.35" daemon prio=6 tid=0x02e43000 nid=0x15f8 runnable [0x0377f000] java.lang.Thread.State: RUNNABLE at java.net.SocketInputStream.socketRead0(Native Method) at java.net.SocketInputStream.read(Unknown Source) at java.io.BufferedInputStream.fill(Unknown Source) at java.io.BufferedInputStream.read(Unknown Source) - locked <0x23215700> (a java.io.BufferedInputStream) at java.io.FilterInputStream.read(Unknown Source) at sun.rmi.transport.tcp.TCPTransport.handleMessages(Unknown Source) at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run0(Unknown Source) at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(Unknown Source) at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(Unknown Source) at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) at java.lang.Thread.run(Unknown Source) Locked ownable synchronizers: - <0x2321c928> (a java.util.concurrent.locks.ReentrantLock$NonfairSync) "RMI TCP Connection(idle)" daemon prio=6 tid=0x02f74c00 nid=0x121c waiting on condition [0x0372f000] java.lang.Thread.State: TIMED_WAITING (parking) at sun.misc.Unsafe.park(Native Method) - parking to wait for <0x231df420> (a java.util.concurrent.SynchronousQueue$TransferStack) at java.util.concurrent.locks.LockSupport.parkNanos(Unknown Source) at java.util.concurrent.SynchronousQueue$TransferStack.awaitFulfill(Unknown Source) at java.util.concurrent.SynchronousQueue$TransferStack.transfer(Unknown Source) at java.util.concurrent.SynchronousQueue.poll(Unknown Source) at java.util.concurrent.ThreadPoolExecutor.getTask(Unknown Source) at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) at java.lang.Thread.run(Unknown Source) Locked ownable synchronizers: - None "JMX server connection timeout 22" daemon prio=6 tid=0x02f70400 nid=0x324 in Object.wait() [0x036df000] java.lang.Thread.State: TIMED_WAITING (on object monitor) at java.lang.Object.wait(Native Method) - waiting on <0x231e31d8> (a [I) at com.sun.jmx.remote.internal.ServerCommunicatorAdmin$Timeout.run(Unknown Source) - locked <0x231e31d8> (a [I) at java.lang.Thread.run(Unknown Source) Locked ownable synchronizers: - None "RMI Scheduler(0)" daemon prio=6 tid=0x02b4e000 nid=0x1430 waiting on condition [0x0368f000] java.lang.Thread.State: TIMED_WAITING (parking) at sun.misc.Unsafe.park(Native Method) - parking to wait for <0x231b9ae0> (a java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject) at java.util.concurrent.locks.LockSupport.parkNanos(Unknown Source) at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.awaitNanos(Unknown Source) at java.util.concurrent.DelayQueue.take(Unknown Source) at java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(Unknown Source) at java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(Unknown Source) at java.util.concurrent.ThreadPoolExecutor.getTask(Unknown Source) at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) at java.lang.Thread.run(Unknown Source) Locked ownable synchronizers: - None "RMI TCP Connection(idle)" daemon prio=6 tid=0x02e4b400 nid=0x1608 waiting on condition [0x0363f000] java.lang.Thread.State: TIMED_WAITING (parking) at sun.misc.Unsafe.park(Native Method) - parking to wait for <0x231df420> (a java.util.concurrent.SynchronousQueue$TransferStack) at java.util.concurrent.locks.LockSupport.parkNanos(Unknown Source) at java.util.concurrent.SynchronousQueue$TransferStack.awaitFulfill(Unknown Source) at java.util.concurrent.SynchronousQueue$TransferStack.transfer(Unknown Source) at java.util.concurrent.SynchronousQueue.poll(Unknown Source) at java.util.concurrent.ThreadPoolExecutor.getTask(Unknown Source) at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) at java.lang.Thread.run(Unknown Source) Locked ownable synchronizers: - None "RMI TCP Accept-0" daemon prio=6 tid=0x02b2e800 nid=0x128c runnable [0x035cf000] java.lang.Thread.State: RUNNABLE at java.net.PlainSocketImpl.socketAccept(Native Method) at java.net.PlainSocketImpl.accept(Unknown Source) - locked <0x231c
Re: SLIME/Swank problem with swank.util.sys/get-pid and RuntimeMXBean
Rob Wolfe writes:
> Unfortunately I have no idea what is the reason of this problem,
That makes two of us.
> but I'm curious what Java version are you using?
user=> (map #(System/getProperty %)
["java.version" "java.vendor" "java.vm.version"])
("1.6.0_17" "Sun Microsystems Inc." "14.3-b01")
user=> (map #(System/getProperty %)
["os.name" "os.version" "os.arch"])
("Windows XP" "5.1" "x86")
> Have you tried by any chance two different Java versions with the same
> result?
No, that's the only one I have installed. In a few days when I return to
the office, I can try it against version 1.6.0_14 as well.
In the meantime, I'll continue the investigation.
--
Steven E. Harris
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Re: SLIME/Swank problem with swank.util.sys/get-pid and RuntimeMXBean
"Steven E. Harris" writes:
[...]
> Here's the stack:
>
> o swank-clojure
> Git head.
>
> o SLIME
> Both CVS head and git://git.boinkor.net/slime.git head behave the same
> way, as the offending calls are in swank-clojure.
>
> o Clojure 1.1.0
> Downloaded Jar from code.google.com.
>
> o GNU Emacs 23.1.1
>
> o Windows XP 32-bit
Unfortunately I have no idea what is the reason of this problem,
but I'm curious what Java version are you using?
Have you tried by any chance two different Java versions with the same
result?
user> (map #(System/getProperty %) ["java.version" "java.vendor"
"java.vm.version"])
("1.5.0_17" "Sun Microsystems Inc." "1.5.0_17-b04")
user> (map #(System/getProperty %) ["os.name" "os.version" "os.arch"])
("Linux" "2.6.26-1-486" "i386")
Br,
Rob
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Re: SLIME/Swank problem with swank.util.sys/get-pid and RuntimeMXBean
"Steven E. Harris" writes: > it takes calling RuntimeMXBean#get() -- actually using the > RuntimeMXBean instance -- to unblock the other thread. I meant RuntimeMXBean#getName() there. My typing is poor this morning. -- Steven E. Harris -- You received this message because you are subscribed to the Google Groups "Clojure" group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
Re: SLIME/Swank problem with swank.util.sys/get-pid and RuntimeMXBean
Phil Hagelberg writes: > But I'm not quite following on the exact problem and specific repro > case; could you clarify? Yes. When I start SLIME, the Swank back-end starts and presents the Clojure REPL in the *inferior-lisp* buffer. Right after that, the SLIME front-end sends an "Emacs REX" command to the Swank back-end, asking it to invoke the `connection-info' function. At this point, the SLIME front-end has reported that it's trying to connect. The Swank back-end receives the REX request, invokes the `connection-info' method on some thread separate from the thread servicing the Clojure REPL, and hangs in its call to `get-pid'. Because the Swank back-end thread servicing the call to `connection-info' hasn't responded, the SLIME front-end is hung waiting for its REX to complete to gather the `connection-info' result. Not until the SLIME front-end has received that result will it finally announce that it succeeded connecting and present the SLIME REPL. It's not just the SLIME REPL that won't work until that `connection-info' REX completes. Any buffers that attempt to submit forms to Clojure for evaluation will not receive a result; the requests are merely queued because the SLIME front-end has not completed its connection and initial handshake. The call to `get-pid' hangs on its call to RuntimeMXBean#getName() which is part of the first path taken by `get-pid': , | (.. java.lang.management.ManagementFactory | (getRuntimeMXBean) | (getName) | (split "@")) ` Now, I found a way to unblock that hung call to RuntimeMXBean#getName(): In the Clojure REPL available in the *inferior-lisp* buffer, I can evaluate the following form: , | (.. java.lang.management.ManagementFactory (getRuntimeMXBean) (getName) ` That evaluation takes place in the thread servicing the Clojure REPL, which is a different thread from the one blocked in the REX call to `connection-info' and, transitively, `get-pid'. The above form evaluates immediately in he Clojure REPL and, as a side-effect I don't yet understand, /also/ causes the call blocked in the Swank REX-servicing thread to complete as well. Hence, `get-pid' completes, the `connection-info' completes, then the SLIME front-end receives its reply and finally sets up the SLIME REPL. From then on, all is well. I've been searching the Web looking for similar complaints about such a call hanging, and so far I've come up blank. Again, note that calling ManagementFactory#getRuntimeMXBean() from the Clojure REPL is not sufficient to unblock the other thread hung in `get-pid'; it takes calling RuntimeMXBean#get() -- actually using the RuntimeMXBean instance -- to unblock the other thread. Perhaps there's some lazy initialization going on in Sun's RuntimeMXBean implementation. > Does it occur with the latest version of swank-clojure? Yes. I'm tracking the tip of the "master" branch via Git. Here's the stack: o swank-clojure Git head. o SLIME Both CVS head and git://git.boinkor.net/slime.git head behave the same way, as the offending calls are in swank-clojure. o Clojure 1.1.0 Downloaded Jar from code.google.com. o GNU Emacs 23.1.1 o Windows XP 32-bit -- Steven E. Harris -- You received this message because you are subscribed to the Google Groups "Clojure" group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
Re: SLIME/Swank problem with swank.util.sys/get-pid and RuntimeMXBean
"Steven E. Harris" writes: > Is there a separate mailing list to which I should report this problem? There's http://groups.google.com/group/swank-clojure, though for this particular issue you can just continue in this thread. But I'm not quite following on the exact problem and specific repro case; could you clarify? Does it occur with the latest version of swank-clojure? -Phil -- You received this message because you are subscribed to the Google Groups "Clojure" group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
SLIME/Swank problem with swank.util.sys/get-pid and RuntimeMXBean (was: Clojure/SLIME/Emacs questions)
"Steven E. Harris" writes: > My next step will be to instrument the Swank side to see when > `connection-info' is being called. I found the problem: swank.util.sys/get-pid. It looks like the JMX call to get the PID hangs. If I visit the *inferior-lisp* buffer's REPL and evaluate the following form, the REPL finishes connecting immediately: ,[ Fragment of `get-pid' function ] | (.. java.lang.management.ManagementFactory | (getRuntimeMXBean) (getName) (split "@")) ` Apparently forcing more than one call through that path kicks it out of some wait, and the thread blocked on the Swank-side function `swank.commands.basic/connection-info' finally finishes its call to get-pid. Note that calling java.lang.management.ManagementFactory#getRuntimeMXBean() is not sufficient to unblock the thread in `connection-info'. It takes the following call to RuntimeMXBean#getName() to unblock the wait. Is there a separate mailing list to which I should report this problem? -- Steven E. Harris -- You received this message because you are subscribed to the Google Groups "Clojure" group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
