diff options
Diffstat (limited to 'community/gsoc')
| -rw-r--r-- | community/gsoc/2012/virt/discussion.mdwn | 173 | ||||
| -rw-r--r-- | community/gsoc/project_ideas.mdwn | 5 | ||||
| -rw-r--r-- | community/gsoc/project_ideas/smp.mdwn | 16 |
3 files changed, 192 insertions, 2 deletions
diff --git a/community/gsoc/2012/virt/discussion.mdwn b/community/gsoc/2012/virt/discussion.mdwn index 31b9ce01..e0085322 100644 --- a/community/gsoc/2012/virt/discussion.mdwn +++ b/community/gsoc/2012/virt/discussion.mdwn @@ -214,3 +214,176 @@ License|/fdl]]."]]"""]] <braunr> or these meetings won't be as useful as they could be <tschwinge> Yes. But also please don't wait for the meetings, but ask questions throughout the week, too. + + +# IRC, freenode, #hurd, 2012-08-09 + + <nowhere_man> hey, does anyone knows the network device interface well? + <nowhere_man> I don't get it by reading net_io.c/h in gnumach + <braunr> nowhere_man: ask your question + <braunr> nowhere_man: http://www.sceen.net/~rbraun/pcap-hurd.c <- this may + help + <nowhere_man> I don't see what the entry point is + <nowhere_man> I finally understood that I actually don't need to touch + pfinet for gsoc project + <nowhere_man> but I should do a replacement network device instead + <nowhere_man> is the net_io_init function called at start? + <braunr> what entry point ? + <braunr> and you should perhaps have a look at the eth-multiplexer by + zhengda + <braunr> yes net_io_init is called at startup + <braunr> nowhere_man: did you find your answers about networking ? + <nowhere_man> no, I'm still digging in mach's code + <braunr> nowhere_man: well keep asking :/ + <braunr> you left conversation without notice :/ + <braunr> nowhere_man: and why mach ? + <nowhere_man> I thought hardware devices are there + <tschwinge> nowhere_man: You wanted to push your documentation one/two + weeks ago. Why has that not yet happened? + <youpi> nowhere_man: they used to be there, they are now in netdde, but in + both case it's just a matter of the same RPC interface + <nowhere_man> tschwinge: I spent very few time this week on gsoc, and + completely forgot about the push on savannah + <braunr> nowhere_man: i told you to look at the work by zhengda concerning + eth-multiplexer, did you do that ? + <tschwinge> nowhere_man: You realize GSoC is meant to be a full-time job? + <tschwinge> Or, next to full-time? + <braunr> it's full-time normally + <braunr> the payment is justified by that + <youpi> nowhere_man: most RPC operations you need to know about network can + be seen at work in pfinet/ethernet.c, wherever "ether_port" appears + <youpi> i.e. device_open, set_filter, write, set/get_status + <braunr> again, http://www.sceen.net/~rbraun/pcap-hurd.c should guide you + pretty well + <braunr> since it's the very least necessary to use that interface + <tschwinge> nowhere_man: How, roughly but realistically, are your plans to + continue this task? + <tschwinge> nowhere_man: What has been blocking you this week so you + couldn't work on your task? + <nowhere_man> tschwinge: mostly a previous work that was supposed to end at + the beginning of the summer and only went online now, for which I'm + basically sysadmin + <braunr> 21:25 < tschwinge> nowhere_man: How, roughly but realistically, + are your plans to continue this task? + <braunr> this question is really more interesting actually + <nowhere_man> right now, I want to write a netword device that just sends + its frames by IPC + <braunr> why ? + <nowhere_man> as I never wrote any program using Mach's IPC, that seems the + easiest to get them right + <braunr> you won't have time + <braunr> 21:22 < braunr> nowhere_man: i told you to look at the work by + zhengda concerning eth-multiplexer, did you do that ? + <nowhere_man> braunr: not yet, no + <braunr> well that's your best chance to make some progress + <nowhere_man> braunr: is writing the virtal network device that hard? + <braunr> basically, it allows "bridgind" the pfinet instances of various + subhurds + <braunr> the virtual network device you want *is* eth-multiplexer + <tschwinge> nowhere_man: GSoC is nearly over. That's why I'm asking how + this task is going to continue. I'm sorry but I reckon you have not + spend anywhere near the amount of hours that are meant to be spent on it. + <braunr> and from what antrik told me, yes it's hard, and moreover, why + rewrite it if it already exists and you're late + <braunr> i agree + <nowhere_man> tschwinge: I know, I've started way too late because of my + second round of exams + <tschwinge> nowhere_man: OK, that's how you started. But how is it going + to continue... + <nowhere_man> tschwinge: in short, I write a prototype that just starts a + subhurd, and when that works correctly I add the network + <tschwinge> nowhere_man: I mean from an organizational point of view. + <nowhere_man> well, between now and the beginning of september, I'll work + full-time on this + <nowhere_man> up until september 8th + + +# IRC, freenode, #hurd, 2012-08-09 + + <antrik> nowhere_man: you do *not* have to do a replacement network + device. zhengda did that years ago. + <antrik> nowhere_man: also note that zhengda also implemented the support + for *using* the virtual network device (in fact any replacement devices + -- except that no others actually exist yet) in boot + <youpi> which is already in, actually, isn't it? + <antrik> youpi: hm, yes... it was the patch that zhengda posted on the list + once, but later updated, and at some later point you merged the outdated + variant from the list... + <youpi> outdated? + <youpi> ah, but he never posted the updated one, and it got lost in git + repos, right? + <youpi> (what was updated actually?) + <antrik> he changed the option name and description later for more + clarity. don't remember whether there were other changes + <antrik> -f, --device=device_name=device_file + <antrik> Specify a device file used by subhurd + and its + <antrik> virtual name. + <antrik> that's the one from the Debian package + <antrik> -m, --device-map=DEBICENAME=DEVICEFILE + <antrik> Map the device in subhurd to the + device in the + <antrik> main Hurd. + <antrik> that's the one I have locally built from his tree + <youpi> so you actually have access to his tree? + <antrik> uhm... I used to... it was on flubber + + +# IRC, freenode, #hurd, 2012-08-18 + + <nowhere_man> so, this week I discovered how fun it is to work on a + non-mainstream OS + <nowhere_man> I hoped to start coding the tool itself, put together the + skeleton, but every Lisp implementation I tried had problems + <braunr> ah you want to write it in lisp ? + <nowhere_man> ECL, that I had ported a few years ago, actually FTBFS since + <nowhere_man> I hoped to be able, it would be easier for me + <nowhere_man> and when I tried Scheme, I started with Guile (it's GNU's own + Scheme implementation, after all) + <nowhere_man> and when I execute the FFI functions, to access functions in + libmachdec + <nowhere_man> I get SIGILL + <braunr> i can't advise you about anything lisp related + <braunr> the most reliable thing you'll find on the hurd is C + <nowhere_man> I tried to debug that, but running Guile in GDB gets me a + SIGSEV + <nowhere_man> I'll try to make ECL to build again + <braunr> this seems like a waste of time to me + <braunr> avoid spending time on anything that isn't directly related to + your goal if you still hope to finish it + <nowhere_man> I'm ten times more comfortable coding in Lisp + <braunr> it doesn't matter, you're late + <nowhere_man> yeah, I know, so taking the time to correct that problem + won't change the fact that I won't finish in time + <nowhere_man> so I'll finish anyway, and in Lisp + <braunr> and if you lack something else, like some mach/hurd specific lisp + bindings, you'll have to spend more time on that + <braunr> ok + <nowhere_man> do you know if someone had a SIGILL situation on Hurd in the + past? + <nowhere_man> I'm wondering if that's a known kind of issue + <braunr> there are lots of issues + <braunr> especially when it comes to other languages and runtime + environments + <nowhere_man> but is it like MAX_PATH_LEN, something that is known to + happen when porting something on Hurd? + <braunr> i'm not sure how comparable it is + <braunr> i'd say it's often before of the conformance issues of the hurd + <braunr> because* + <nowhere_man> like missing bits of POSIX ? + <braunr> or simple wrong for some corner cases + <braunr> simply* + <bubu^> nowhere_man, I was able to run guile on my hurd image through qemu + <bubu^> but I didn't make any complexe programms to check if everything + works fine + <nowhere_man> yeah, it runs fine + <nowhere_man> FFI functions get you a SIGILL + <nowhere_man> + http://www.gnu.org/software/guile/manual/html_node/Dynamic-FFI.html + <nowhere_man> the define-module form at the beginning triggers the signal + <antrik> nowhere_man: what do you want to implement in Lisp? + <antrik> BTW, the guy working on Lisp bindings a couple of years ago used + Clisp + <antrik> it was working back then + <nowhere_man> antrik: the program that sets up a subhurd + <nowhere_man> I always forget about clisp, I'll try it right away diff --git a/community/gsoc/project_ideas.mdwn b/community/gsoc/project_ideas.mdwn index 8ce10ffa..9d486b00 100644 --- a/community/gsoc/project_ideas.mdwn +++ b/community/gsoc/project_ideas.mdwn @@ -1,5 +1,5 @@ -[[!meta copyright="Copyright © 2008, 2009, 2010, 2011 Free Software Foundation, -Inc."]] +[[!meta copyright="Copyright © 2008, 2009, 2010, 2011, 2012 Free Software +Foundation, Inc."]] [[!meta license="""[[!toggle id="license" text="GFDL 1.2+"]][[!toggleable id="license" text="Permission is granted to copy, distribute and/or modify this @@ -87,6 +87,7 @@ other: language_bindings, gnat, gccgo, perl_python. --> [[!inline pages="community/gsoc/project_ideas/tcp_ip_stack" show=0 feeds=no actions=yes]] [[!inline pages="community/gsoc/project_ideas/nfs" show=0 feeds=no actions=yes]] [[!inline pages="community/gsoc/project_ideas/pthreads" show=0 feeds=no actions=yes]] +[[!inline pages="community/gsoc/project_ideas/smp" show=0 feeds=no actions=yes]] [[!inline pages="community/gsoc/project_ideas/sound" show=0 feeds=no actions=yes]] [[!inline pages="community/gsoc/project_ideas/disk_io_performance" show=0 feeds=no actions=yes]] [[!inline pages="community/gsoc/project_ideas/vm_tuning" show=0 feeds=no actions=yes]] diff --git a/community/gsoc/project_ideas/smp.mdwn b/community/gsoc/project_ideas/smp.mdwn new file mode 100644 index 00000000..e17c2ccf --- /dev/null +++ b/community/gsoc/project_ideas/smp.mdwn @@ -0,0 +1,16 @@ +[[!meta copyright="Copyright © 2012 Free Software Foundation, Inc."]] + +[[!meta license="""[[!toggle id="license" text="GFDL 1.2+"]][[!toggleable +id="license" text="Permission is granted to copy, distribute and/or modify this +document under the terms of the GNU Free Documentation License, Version 1.2 or +any later version published by the Free Software Foundation; with no Invariant +Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license +is included in the section entitled [[GNU Free Documentation +License|/fdl]]."]]"""]] + +[[!meta title="SMP"]] + + +# IRC, freenode, #hurd, 2012-09-30 + + <braunr> i expect smp to be our next gsoc project |