Re: [gentoo-user] java vs icedtea6
On 01/15/2013 11:32 PM, Nilesh Govindrajan wrote: > On Wednesday 16 January 2013 10:32:11 AM IST, Kevin Brandstatter wrote: >> I'm curious as well about the potential exploitability of icedtea. I >> would think that since the icedtea vm is not the same as the sun/oracle >> one and so I don't think the code base is the same, which would mean an >> exploit in the sun/oracle jvm would not necessarily affect icedtea. >> However, I know very little on this matter and seeing as i think both >> are open sourced i have no idea how much or if there is any code overlap. >> > > Oracle Java is open source? > > -- > Nilesh Govindarajan > http://nileshgr.com > I was thinking the same thing. Last I knew, the VM is closed while the language is pretty much open.
Re: [gentoo-user] java vs icedtea6
On Wednesday 16 January 2013 10:32:11 AM IST, Kevin Brandstatter wrote: > I'm curious as well about the potential exploitability of icedtea. I > would think that since the icedtea vm is not the same as the sun/oracle > one and so I don't think the code base is the same, which would mean an > exploit in the sun/oracle jvm would not necessarily affect icedtea. > However, I know very little on this matter and seeing as i think both > are open sourced i have no idea how much or if there is any code overlap. > Oracle Java is open source? -- Nilesh Govindarajan http://nileshgr.com
Re: [gentoo-user] Re: /home doesn't umount on shutdown
On 16/01/13 at 02:34am, Alan McKinnon wrote: > I just checked now and I don't even have kde-base/nepomuk *installed* > anymore. I wonder how that came about, I thought nepomuk was mandatory > for KDE4? you probably have USE="-semantic-desktop" :D -- - Yohan Pereira The difference between a Miracle and a Fact is exactly the difference between a mermaid and a seal. -- Mark Twain
Re: [gentoo-user] java vs icedtea6
I'm curious as well about the potential exploitability of icedtea. I would think that since the icedtea vm is not the same as the sun/oracle one and so I don't think the code base is the same, which would mean an exploit in the sun/oracle jvm would not necessarily affect icedtea. However, I know very little on this matter and seeing as i think both are open sourced i have no idea how much or if there is any code overlap. -Kevin On 01/15/2013 06:32 PM, William Kenworthy wrote: > Looking for comments: > > A while back I removed java during an upgrade on my main desktop system > and left icedtea6-bin in place without any noticeable effect. > > > Presumably icedtea6 suffers the same java bug (cant find anything in > their bugzilla though?) thats got everybody riled at the moment, though > the last security bug on gentoo bugzilla is 2011. > > > I am happy not using a mainstream java and avoiding the fuss that goes > with dealing with oracles nonsense download restrictions but have two > questions: > > 1. are there any "real" problems with using icedtea6? > > 2. icedtea6 and icedtea6-bin ... any difference in features? - I have > had a much more stable experience with openoffice vs openoffice-bin so > presume build yourself would be the same here? > > > The questions may seem redundant seeing I am using both icedtea and java > on various systems, but others experience may not be the same, or have > more knowledge which would be useful before I move everything over. > > BillK > > signature.asc Description: OpenPGP digital signature
Re: [gentoo-user] USB mouse and keyboard stopped working
On Tue, Jan 15, 2013 at 6:40 PM, Allan Gottlieb wrote: > The external (USB) mouse on one of my laptops stopped working. > I tried a keyboard and that failed as well. > > There are two USB ports and the mouse fails on both (only tried the > keyboard on one). > > I can dual boot into windows and there the mouse does work on both > ports. > > The kernel is unchanged (3.5.4). This seems to have happened around the > last udev update (now 197-r2), which caused other problems (these have > been repaired using suggestions from this group). > > I would appreciate any help. The usual info is necessary: do you mean they stopped working on X? Do you use a xorg.conf? Do you use xf86-input-evdev? Regards. -- Canek Peláez Valdés Posgrado en Ciencia e Ingeniería de la Computación Universidad Nacional Autónoma de México
Re: [gentoo-user] Ekopath compiler failing to build - something about glibc development files
On 01/16/13 06:31, Mike Edenfield wrote: On 13 January 2013, at 06:53, Andrew Lowe wrote: ... From all of the above, I think the important part is that I need to install some "glibc developement files". A google search doesn't point me in the direction of what these might be. According to "eix glibc", I have debug turned OFF - is this the problem? The part about the "glibc development [sic] files" is mostly a red herring. I'm not sure where it's coming from (I can't find that misspelling of development in the portage source or any eclass, and it's not part of the actual ebuild.) [snip] I got an email directly from the maintainer pointing me to something in the gentoo bugs db, https://bugs.gentoo.org/show_bug.cgi?id=444020#c6 which basically says there was something wrong and re-emerging glibc will fix the problem. I did this then ran my "emerge -NuD world". Lo & behold, V5 of the compiler was installed, not the V4.?? that I was having trouble with, and installed cleanly. As V5 is now there, I can't be bothered checking on the V4 problem. Thanks for the comments, Andrew
[gentoo-user] USB mouse and keyboard stopped working
The external (USB) mouse on one of my laptops stopped working. I tried a keyboard and that failed as well. There are two USB ports and the mouse fails on both (only tried the keyboard on one). I can dual boot into windows and there the mouse does work on both ports. The kernel is unchanged (3.5.4). This seems to have happened around the last udev update (now 197-r2), which caused other problems (these have been repaired using suggestions from this group). I would appreciate any help. allan
Re: [gentoo-user] Re: /home doesn't umount on shutdown
On Tue, 15 Jan 2013 23:37:28 +0100 Remy Blank wrote: > Alan McKinnon wrote: > > But I was not able to make the problem re-appear in short reboot > > cycles. So whatever is hanging the box is something that starts up > > in the course of work, it doesn't appear to be there directly after > > a KDE login. > > I have observed that kded4 and nepomukserver sometimes don't terminate > after logging out of KDE. At the next login, I get another copy of > each, and so they accumulate. It's so bad that I added a script to > ~/.kde4/shutdown to "kill -9" them if they are still running 15 > seconds after logging out. > > Both processes keep open file descriptors to ~/.xsession-errors, so > they would indeed prevent /home from unmounting. I recall have similar issues long ago, but haven't seen anything like it again for months now. I just checked now and I don't even have kde-base/nepomuk *installed* anymore. I wonder how that came about, I thought nepomuk was mandatory for KDE4? -- Alan McKinnon alan.mckin...@gmail.com
[gentoo-user] java vs icedtea6
Looking for comments: A while back I removed java during an upgrade on my main desktop system and left icedtea6-bin in place without any noticeable effect. Presumably icedtea6 suffers the same java bug (cant find anything in their bugzilla though?) thats got everybody riled at the moment, though the last security bug on gentoo bugzilla is 2011. I am happy not using a mainstream java and avoiding the fuss that goes with dealing with oracles nonsense download restrictions but have two questions: 1. are there any "real" problems with using icedtea6? 2. icedtea6 and icedtea6-bin ... any difference in features? - I have had a much more stable experience with openoffice vs openoffice-bin so presume build yourself would be the same here? The questions may seem redundant seeing I am using both icedtea and java on various systems, but others experience may not be the same, or have more knowledge which would be useful before I move everything over. BillK
[gentoo-user] apcupsd settings for hibernate+shutdown?
I'm running an APC UPS on Gentoo linux (Back-UPS XS 1300G). Up till now, I've used the UPS in "dumb" mode; i.e. no acpusd running. My main concern has been short power blips, and under/over-voltage. All I wanted was a few minutes to shut down or hibernate the PC before the battery gave out. I've enabled the "Master/Controlled outlets" feature. I have the PC plugged into the Master, and a surgeprotector powerbar into a Controlled outlet. The monitor/speakers/modem/etc are plugged into the surgeprotector. When I manually hibernate the PC, the ups cuts off power to the peripherals connected to the surgeprotector (connected to the "Controlled outlet"). I may be getting a contract soon that involves crunching huge text files, with multi-hour overnight data runs, etc. I'll launch a run, and leave things unattended for hours on end. Let's assume I start a run, go away for the day, and a power outage hits. My Google searches always seem to turn up hits involving sending warning messages to users that the system may be going down soon. What I actually want to happen in an extended power outage is... * have the system execute the command "/usr/sbin/hibernate" to save program state, etc to disk, and then shut down. * shut down the APC ups afterwards. Note that once "/usr/sbin/hibernate" is launched, you have to assume that the ups immediately loses contact with the PC, ***BUT THE UPS MUST STAY ON FOR A COUPLE OF MINUTES AFTERWARD*** to give the PC time to shut down gracefully. Will "KILLDELAY 180" give 3 minutes safety margin? And what do I have to do to get it to execute "/usr/sbin/hibernate"? As per instructions from the install, I've done... rc-update add apcupsd.powerfail shutdown ...which is supposed to tell the ups to shut down when the PC shuts down. Colour me confused... * does the ups not shut itself down due to BATTERYLEVEL/MINUTES/TIMEOUT? * if so, why does it need the "apcupsd.powerfail" service in my PC's shutdown runlevel? Here are my config file and apcaccess status output... *** /etc/apcupsd/apcupsd.conf file *** UPSCABLE usb UPSTYPE usb LOCKFILE /var/lock SCRIPTDIR /etc/apcupsd PWRFAILDIR /etc/apcupsd NOLOGINDIR /etc ONBATTERYDELAY 6 BATTERYLEVEL 15 MINUTES 5 TIMEOUT 0 ANNOY 300 ANNOYDELAY 60 NOLOGON disable KILLDELAY 180 NETSERVER on NISIP 0.0.0.0 NISPORT 3551 EVENTSFILE /var/log/apcupsd.events EVENTSFILEMAX 10 UPSCLASS standalone UPSMODE disable STATTIME 0 STATFILE /var/log/apcupsd.status LOGSTATS off DATATIME 0 *** apcaccess status *** APC : 001,037,0914 DATE : 2013-01-13 03:17:56 -0500 HOSTNAME : d531 VERSION : 3.14.8 (16 January 2010) gentoo UPSNAME : d531 CABLE: USB Cable MODEL: Back-UPS XS 1300G UPSMODE : Stand Alone STARTTIME: 2013-01-13 03:15:05 -0500 STATUS : ONLINE LINEV: 122.0 Volts LOADPCT : 7.0 Percent Load Capacity BCHARGE : 100.0 Percent TIMELEFT : 60.0 Minutes MBATTCHG : 15 Percent MINTIMEL : 5 Minutes MAXTIME : 0 Seconds SENSE: High LOTRANS : 088.0 Volts HITRANS : 136.0 Volts ALARMDEL : Always BATTV: 27.2 Volts LASTXFER : No transfers since turnon NUMXFERS : 0 TONBATT : 0 seconds CUMONBATT: 0 seconds XOFFBATT : N/A SELFTEST : NO STATFLAG : 0x0708 Status Flag MANDATE : 2012-07-06 SERIALNO : [ deleted ] BATTDATE : 2012-07-06 NOMINV : 120 Volts NOMBATTV : 24.0 Volts NOMPOWER : 780 Watts FIRMWARE : 864.L6 .D USB FW:L6 APCMODEL : Back-UPS XS 1300G END APC : 2013-01-13 03:17:56 -0500 -- Walter Dnes I don't run "desktop environments"; I run useful applications
Re: [gentoo-user] Re: /home doesn't umount on shutdown
Remy Blank wrote:
> Dale wrote:
>> Care to share that script? ;-) May try that myself.
>
> Sure, here it is:
>
> $ cat .kde4/shutdown/cleanup-kde-processes
> #!/bin/bash
>
> log() {
> logger -t "$(basename $0)" "$1"
> }
>
> is_running() {
> killall -0 -u $USER "$1"
> }
>
> kill_if_running() {
> sleep 15
> is_running startkde && return 0
> if is_running $1; then
> log "$1 still running, sending TERM"
> killall -s TERM $1
> sleep 5
> is_running startkde && return 0
> if is_running $1; then
> log "$1 still running, sending KILL"
> killall -s KILL $1
> fi
> fi
> }
>
> kill_if_running kded4 &
> kill_if_running nepomukserver &
>
Thanks much. This will be better than killing them all one by one.
Dale
:-) :-)
--
I am only responsible for what I said ... Not for what you understood or
how you interpreted my words!
[gentoo-user] Re: /home doesn't umount on shutdown
Dale wrote:
> Care to share that script? ;-) May try that myself.
Sure, here it is:
$ cat .kde4/shutdown/cleanup-kde-processes
#!/bin/bash
log() {
logger -t "$(basename $0)" "$1"
}
is_running() {
killall -0 -u $USER "$1"
}
kill_if_running() {
sleep 15
is_running startkde && return 0
if is_running $1; then
log "$1 still running, sending TERM"
killall -s TERM $1
sleep 5
is_running startkde && return 0
if is_running $1; then
log "$1 still running, sending KILL"
killall -s KILL $1
fi
fi
}
kill_if_running kded4 &
kill_if_running nepomukserver &
signature.asc
Description: OpenPGP digital signature
Re: [gentoo-user] Re: /home doesn't umount on shutdown
Remy Blank wrote: > Alan McKinnon wrote: >> But I was not able to make the problem re-appear in short reboot >> cycles. So whatever is hanging the box is something that starts up in >> the course of work, it doesn't appear to be there directly after a KDE >> login. > > I have observed that kded4 and nepomukserver sometimes don't terminate > after logging out of KDE. At the next login, I get another copy of each, > and so they accumulate. It's so bad that I added a script to > ~/.kde4/shutdown to "kill -9" them if they are still running 15 seconds > after logging out. > > Both processes keep open file descriptors to ~/.xsession-errors, so they > would indeed prevent /home from unmounting. > > -- Remy > I run into that a LOT here too. After a large upgrade, I usually switch to the boot runlevel to make sure most everything gets reloaded. When I do that, I have to kill some leftover kde stuff manually. I have been known to let it sit for several minutes to see if it will eventually kill itself but it never has. The nepomukserver is one of them but there is another one that I can't recall the name of. May be on to something, hopefully. Care to share that script? ;-) May try that myself. Dale :-) :-) -- I am only responsible for what I said ... Not for what you understood or how you interpreted my words!
[gentoo-user] Re: /home doesn't umount on shutdown
Alan McKinnon wrote: > But I was not able to make the problem re-appear in short reboot > cycles. So whatever is hanging the box is something that starts up in > the course of work, it doesn't appear to be there directly after a KDE > login. I have observed that kded4 and nepomukserver sometimes don't terminate after logging out of KDE. At the next login, I get another copy of each, and so they accumulate. It's so bad that I added a script to ~/.kde4/shutdown to "kill -9" them if they are still running 15 seconds after logging out. Both processes keep open file descriptors to ~/.xsession-errors, so they would indeed prevent /home from unmounting. -- Remy signature.asc Description: OpenPGP digital signature
RE: [gentoo-user] Ekopath compiler failing to build - something about glibc development files
> On 13 January 2013, at 06:53, Andrew Lowe wrote: > ... > From all of the above, I think the important part is that I need to > install some "glibc developement files". A google search doesn't point me in > the direction of what these might be. According to "eix glibc", I have debug > turned OFF - is this the problem? The part about the "glibc development [sic] files" is mostly a red herring. I'm not sure where it's coming from (I can't find that misspelling of development in the portage source or any eclass, and it's not part of the actual ebuild.) The error happens any time the ekopath installation fails. AFAICT, the ekopath ebuild doesn't really do anything except unpack the tarball and, in the post-install step, run the binary installation program that ships with ekopath. If anything at all happens when the installer is running, you get the same error from portage. What is actually going wrong here is down the bottom: /usr/include/bits/byteswap.h: In function 'unsigned int __bswap_32(unsigned int)': /usr/include/bits/byteswap.h:46: error: '__builtin_bswap32' was not declared in this scope /usr/include/bits/byteswap.h: In function 'long long unsigned int __bswap_64(long long unsigned int)': /usr/include/bits/byteswap.h:110: error: '__builtin_bswap64' was not declared in this scope Last time I saw this is was because a package assumed I had gcc4.3 and I was using an older version, but I highly doubt that's your problem. One thing you can try is to run the installer manually. If you emerge the package and let it fail, all the bits are left in the temporary work folders, so you can do this: cd /var/tmp/portage/dev-lang/ekopath-4.0.12.1_pre20121102/work ./ekopath-4.0.12.1_pre20121102.run --prefix /var/tmp/portage/dev-lang/ekopath-4.0.12.1_pre20121102/image/opt/ekopath and walk through the installation manually. It's an agonizingly slow process but it should work, or give you a better idea of what failed. --Mike
[gentoo-user] Re: No native exception to re-raise
Michael Mol gmail.com> writes: > I've seen this error a couple times this week. Has anyone else seen it > before? Is there a simple way to clear it, or am I going to need to > dig into emerge's source code and study it? Often when every I have python issues, I run python-updater and look at anything suspicious as a starting point for python related issues, spewed across your terminal session. Or googling with libs, dependancies, flags, etc etc on anything to find gooling with python and the package/lib/? keyword searches Chances are the issues is showing up elsewhere, and googling could be your fastest path to debug nirvana. ymmv. Good hunting James
Re: [gentoo-user] /home doesn't umount on shutdown
Fuser is the best way to do IT. Am 15.01.2013 16:07 schrieb "Alan McKinnon" : > On Tue, 15 Jan 2013 21:47:46 +0700 > Pandu Poluan wrote: > > > On Jan 15, 2013 7:59 PM, "Alan McKinnon" > > wrote: > > > > > > On Tue, 15 Jan 2013 11:09:56 + > > > Neil Bothwick wrote: > > > > > > > On Tue, 15 Jan 2013 11:57:21 +0200, Alan McKinnon wrote: > > > > > > > > > On the rare occasion when I reboot or shut this laptop down, it > > > > > continually and consistently gets stuck on one of the final > > > > > steps, to umount /home > > > > > > > > If you logout as your user(s) so only root is logged in, does lsof > > > > show any hits for /home? > > > > > > Only 1 hit - a background ssh process that sets up a bunch of > > > tunnels and port forwards so I can get into the corporate network > > > for anywhere. > > > [snip] > > > A bit roundabout, but you can also try making a 'pseudo-service'. > > Make it 'depend' on a late-stage service so it starts last, and shuts > > down early. The stop() part of the pseudo-service should perform an > > lsof >> a file (in a directory still available during the last throes > > of OpenRC like, say, /etc). > > > > I hope I'm making sense... > > Makes perfect sense, a good idea actually :-) > > Easiest would be to echo lsof to the console, I only need it if umount > hangs and it will be there and visible. If umount worked it won't be > visible and not needed either > > > -- > Alan McKinnon > alan.mckin...@gmail.com > > >
Re: [gentoo-user] /home doesn't umount on shutdown
On Tue, 15 Jan 2013 21:47:46 +0700 Pandu Poluan wrote: > On Jan 15, 2013 7:59 PM, "Alan McKinnon" > wrote: > > > > On Tue, 15 Jan 2013 11:09:56 + > > Neil Bothwick wrote: > > > > > On Tue, 15 Jan 2013 11:57:21 +0200, Alan McKinnon wrote: > > > > > > > On the rare occasion when I reboot or shut this laptop down, it > > > > continually and consistently gets stuck on one of the final > > > > steps, to umount /home > > > > > > If you logout as your user(s) so only root is logged in, does lsof > > > show any hits for /home? > > > > Only 1 hit - a background ssh process that sets up a bunch of > > tunnels and port forwards so I can get into the corporate network > > for anywhere. [snip] > A bit roundabout, but you can also try making a 'pseudo-service'. > Make it 'depend' on a late-stage service so it starts last, and shuts > down early. The stop() part of the pseudo-service should perform an > lsof >> a file (in a directory still available during the last throes > of OpenRC like, say, /etc). > > I hope I'm making sense... Makes perfect sense, a good idea actually :-) Easiest would be to echo lsof to the console, I only need it if umount hangs and it will be there and visible. If umount worked it won't be visible and not needed either -- Alan McKinnon alan.mckin...@gmail.com
Re: [gentoo-user] /home doesn't umount on shutdown
On Tue, 15 Jan 2013 06:44:11 -0600 Dale wrote: > Alan McKinnon wrote: > > On the rare occasion when I reboot or shut this laptop down, it > > continually and consistently gets stuck on one of the final steps, > > to umount /home > > > > The process never proceeds beyond that point (as /home is always > > fsck'ed on next startup). I can't see any logs as syslog has already > > been shut down at this point, and it happens whether I shutdown as > > root from the console or by using the KDE widget. > > > > /home here is on LVM > > > > I could probably debug this easily enough if I could determine how > > the shutdown sequence is ordered, or get a verbose output. But > > sadly, my fu for such stuff has run out. > > > > Anyone got pointers on where to start poking around? > > > > [I'm not looking for solutions, I'm unlikely to get those right off > > the bat, just looking for pointers atm] > > > > > > > > I would do a 'rc single' then use lsof for /home to see what if > anything is still going on. I think with openrc, when you go to > single user it unmounts about everything, tho this could have changed > since it has been a while since I went to single user. Oh, I have > had issues going from single user back to default mode. It just > doesn't work right. So, be ready to reboot if needed. > > I ran into a weird issue one time a long time ago. It turned out it > was the order I had them in fstab. I think I had /usr/portage > above /usr so as it went down the file, it was trying to > mount /usr/portage then trying to mount /usr. I thought it rather > odd, maybe a bug even, but changing the order made it work. Do you > maybe have something in a odd order in fstab? > > Well, it's early and I am still half asleep. Hope that helps. Going > back to bed. To wet to go hunting this morning, sleeting too. > Brr! LABEL=BOOT /boot ext2noatime 1 2 LABEL=ROOT / ext4noatime,discard 0 1 LABEL=KHAMUL-500G-HOME /home ext4noatime 1 2 LABEL=SWAP swapswapsw 0 0 /dev/cdrom /mnt/cdrom autonoauto,ro 0 0 /dev/fd0/mnt/floppy autonoauto 0 0 shm /dev/shmtmpfs size=75%,rw,nosuid,nodev,exec,relatime 0 0 //10.1.249.2/alanm /mnt/quasar cifs noauto,user,credentials=/home/alanm/.credentials/quasar,defaults0 0 172.20.0.3:/mnt/data/media /mnt/media nfs noauto,user,rw,defaults 0 0 mtpfs /mnt/galaxy fuseuser,noauto,allow_other 0 0 quasar and media are two shares (one at work one at home) that I use all the time, one or both are almost always mounted. But they don't seem to affect the shutdown at all - /home hangs whether I'm at work or at home and whether the NFS share is accessible or not > > Dale > > :-) :-) > -- Alan McKinnon alan.mckin...@gmail.com
Re: [gentoo-user] /home doesn't umount on shutdown
On Jan 15, 2013 7:59 PM, "Alan McKinnon" wrote: > > On Tue, 15 Jan 2013 11:09:56 + > Neil Bothwick wrote: > > > On Tue, 15 Jan 2013 11:57:21 +0200, Alan McKinnon wrote: > > > > > On the rare occasion when I reboot or shut this laptop down, it > > > continually and consistently gets stuck on one of the final steps, > > > to umount /home > > > > If you logout as your user(s) so only root is logged in, does lsof > > show any hits for /home? > > Only 1 hit - a background ssh process that sets up a bunch of tunnels > and port forwards so I can get into the corporate network for anywhere. > > But I was not able to make the problem re-appear in short reboot > cycles. So whatever is hanging the box is something that starts up in > the course of work, it doesn't appear to be there directly after a KDE > login. > > I might have to look at my work flow closely to find all those unusual > things I do in the course of work. I did manage to see the full > shutdown output on the screen with these tests though - it > umounts /home then umounts /boot, but the second umount message is > never displayed. Seeing as it's just a regular sdb1 partition using > ext2 I don;t really think it's getting stuck as the next step starts > up. It's more likely to have something to do with /home > > > > > > I had a similar problem with my MythTV backend failing to > > unmount /var. It turned out that mythbackend was failing to shutdown > > but openrc carried on trying to shutdown. If I make sure mythbackend > > really is stopped, the reboot proceeds normally, which is much better > > since I had to go into the loft to reboot the box manually, > > > > > > > > -- > Alan McKinnon > alan.mckin...@gmail.com > > A bit roundabout, but you can also try making a 'pseudo-service'. Make it 'depend' on a late-stage service so it starts last, and shuts down early. The stop() part of the pseudo-service should perform an lsof >> a file (in a directory still available during the last throes of OpenRC like, say, /etc). I hope I'm making sense... Rgds,
Re: [gentoo-user] [OT] Xlib tutorial
Am 15.01.2013 15:12, schrieb pat: > On Tue, 15 Jan 2013 08:22:03 -0500, Michael Mol wrote >> On Tue, Jan 15, 2013 at 6:55 AM, pat wrote: >>> Hello, >>> >>> Sorry for this off topic. I want to learn how to develop UI applications >>> using >>> Xlib. I've searched web, but I could not find a tutorial which will explain >>> it >>> all (found some short examples). Please, could someone suggest a website or >>> a >>> book? >> >> http://rosettacode.org/wiki/Category:Xlib >> >> Why the specific interest in Xlib? XCB is probably the better C >> library to use at this point. Actually almost any higher-level >> toolkit would be a better place to start: >> >> https://en.wikipedia.org/wiki/List_of_widget_toolkits >> >> GUI programming is a PITA to do in the first place, and it's >> progressively more painful the more you want to "do it right." Don't >> make it harder than it has to be, particularly if you're just getting >> started. >> >> -- >> :wq >> > Thanks for suggestion. Well I don't want to depend on GTK or Qt. > > Thanks > > Pat > Is this for an embedded platform? Because otherwise, for the sake of your own sanity and the usability of your application, don't do this! At least use some lightweight GUI toolkit like xforms or tk. PS: Please don't top-post if you can avoid it. Regards, Florian Philipp signature.asc Description: OpenPGP digital signature
Re: [gentoo-user] [OT] Xlib tutorial
Thanks for suggestion. Well I don't want to depend on GTK or Qt. Thanks Pat On Tue, 15 Jan 2013 08:22:03 -0500, Michael Mol wrote > On Tue, Jan 15, 2013 at 6:55 AM, pat wrote: > > Hello, > > > > Sorry for this off topic. I want to learn how to develop UI applications > > using > > Xlib. I've searched web, but I could not find a tutorial which will explain > > it > > all (found some short examples). Please, could someone suggest a website or > > a > > book? > > http://rosettacode.org/wiki/Category:Xlib > > Why the specific interest in Xlib? XCB is probably the better C > library to use at this point. Actually almost any higher-level > toolkit would be a better place to start: > > https://en.wikipedia.org/wiki/List_of_widget_toolkits > > GUI programming is a PITA to do in the first place, and it's > progressively more painful the more you want to "do it right." Don't > make it harder than it has to be, particularly if you're just getting > started. > > -- > :wq > > > Freehosting PIPNI - http://www.pipni.cz/ Freehosting PIPNI - http://www.pipni.cz/
[gentoo-user] No native exception to re-raise
I've seen this error a couple times this week. Has anyone else seen it before? Is there a simple way to clear it, or am I going to need to dig into emerge's source code and study it? $ emerge --searchdesc pulseaudio Searching... |Traceback (most recent call last): File "/usr/bin/emerge", line 48, in retval = emerge_main() File "/usr/lib64/portage/pym/_emerge/main.py", line 1021, in emerge_main gc_locals=locals().clear) File "/usr/lib64/portage/pym/_emerge/actions.py", line 3751, in run_action myopts, myfiles, spinner) File "/usr/lib64/portage/pym/_emerge/actions.py", line 1936, in action_search searchinstance.execute(mysearch) File "/usr/lib64/portage/pym/_emerge/search.py", line 221, in execute full_package, ["DESCRIPTION"])[0] File "/usr/lib64/portage/pym/_emerge/search.py", line 72, in _aux_get raise RuntimeError: No active exception to reraise -- :wq
Re: [gentoo-user] [OT] Xlib tutorial
On Tue, Jan 15, 2013 at 6:55 AM, pat wrote: > Hello, > > Sorry for this off topic. I want to learn how to develop UI applications using > Xlib. I've searched web, but I could not find a tutorial which will explain it > all (found some short examples). Please, could someone suggest a website or a > book? http://rosettacode.org/wiki/Category:Xlib Why the specific interest in Xlib? XCB is probably the better C library to use at this point. Actually almost any higher-level toolkit would be a better place to start: https://en.wikipedia.org/wiki/List_of_widget_toolkits GUI programming is a PITA to do in the first place, and it's progressively more painful the more you want to "do it right." Don't make it harder than it has to be, particularly if you're just getting started. -- :wq
Re: [gentoo-user] /home doesn't umount on shutdown
On Tue, 15 Jan 2013 11:09:56 + Neil Bothwick wrote: > On Tue, 15 Jan 2013 11:57:21 +0200, Alan McKinnon wrote: > > > On the rare occasion when I reboot or shut this laptop down, it > > continually and consistently gets stuck on one of the final steps, > > to umount /home > > If you logout as your user(s) so only root is logged in, does lsof > show any hits for /home? Only 1 hit - a background ssh process that sets up a bunch of tunnels and port forwards so I can get into the corporate network for anywhere. But I was not able to make the problem re-appear in short reboot cycles. So whatever is hanging the box is something that starts up in the course of work, it doesn't appear to be there directly after a KDE login. I might have to look at my work flow closely to find all those unusual things I do in the course of work. I did manage to see the full shutdown output on the screen with these tests though - it umounts /home then umounts /boot, but the second umount message is never displayed. Seeing as it's just a regular sdb1 partition using ext2 I don;t really think it's getting stuck as the next step starts up. It's more likely to have something to do with /home > > I had a similar problem with my MythTV backend failing to > unmount /var. It turned out that mythbackend was failing to shutdown > but openrc carried on trying to shutdown. If I make sure mythbackend > really is stopped, the reboot proceeds normally, which is much better > since I had to go into the loft to reboot the box manually, > > -- Alan McKinnon alan.mckin...@gmail.com
Re: [gentoo-user] /home doesn't umount on shutdown
Alan McKinnon wrote: > On the rare occasion when I reboot or shut this laptop down, it > continually and consistently gets stuck on one of the final steps, to > umount /home > > The process never proceeds beyond that point (as /home is always > fsck'ed on next startup). I can't see any logs as syslog has already > been shut down at this point, and it happens whether I shutdown as root > from the console or by using the KDE widget. > > /home here is on LVM > > I could probably debug this easily enough if I could determine how the > shutdown sequence is ordered, or get a verbose output. But sadly, my fu > for such stuff has run out. > > Anyone got pointers on where to start poking around? > > [I'm not looking for solutions, I'm unlikely to get those right off the > bat, just looking for pointers atm] > > > I would do a 'rc single' then use lsof for /home to see what if anything is still going on. I think with openrc, when you go to single user it unmounts about everything, tho this could have changed since it has been a while since I went to single user. Oh, I have had issues going from single user back to default mode. It just doesn't work right. So, be ready to reboot if needed. I ran into a weird issue one time a long time ago. It turned out it was the order I had them in fstab. I think I had /usr/portage above /usr so as it went down the file, it was trying to mount /usr/portage then trying to mount /usr. I thought it rather odd, maybe a bug even, but changing the order made it work. Do you maybe have something in a odd order in fstab? Well, it's early and I am still half asleep. Hope that helps. Going back to bed. To wet to go hunting this morning, sleeting too. Brr! Dale :-) :-) -- I am only responsible for what I said ... Not for what you understood or how you interpreted my words!
[SOLVED]Re: [gentoo-user] [OT] Xlib tutorial
Sorry, should search for xlib and not x.org :-| Pat On Tue, 15 Jan 2013 12:55:59 +0100, pat wrote > Hello, > > Sorry for this off topic. I want to learn how to develop UI > applications using Xlib. I've searched web, but I could not find a > tutorial which will explain it all (found some short examples). > Please, could someone suggest a website or a book? > > Thanks > > Pat Freehosting PIPNI - http://www.pipni.cz/
[gentoo-user] [OT] Xlib tutorial
Hello, Sorry for this off topic. I want to learn how to develop UI applications using Xlib. I've searched web, but I could not find a tutorial which will explain it all (found some short examples). Please, could someone suggest a website or a book? Thanks Pat Freehosting PIPNI - http://www.pipni.cz/
Re: [gentoo-user] /home doesn't umount on shutdown
On Tue, 15 Jan 2013 11:57:21 +0200, Alan McKinnon wrote: > On the rare occasion when I reboot or shut this laptop down, it > continually and consistently gets stuck on one of the final steps, to > umount /home If you logout as your user(s) so only root is logged in, does lsof show any hits for /home? I had a similar problem with my MythTV backend failing to unmount /var. It turned out that mythbackend was failing to shutdown but openrc carried on trying to shutdown. If I make sure mythbackend really is stopped, the reboot proceeds normally, which is much better since I had to go into the loft to reboot the box manually, -- Neil Bothwick When told the reason for Daylight Saving time the old Indian said... "Only a white man would believe that you could cut a foot off the top of a blanket And sew it to the bottom of a blanket and have a longer blanket." signature.asc Description: PGP signature
[gentoo-user] /home doesn't umount on shutdown
On the rare occasion when I reboot or shut this laptop down, it continually and consistently gets stuck on one of the final steps, to umount /home The process never proceeds beyond that point (as /home is always fsck'ed on next startup). I can't see any logs as syslog has already been shut down at this point, and it happens whether I shutdown as root from the console or by using the KDE widget. /home here is on LVM I could probably debug this easily enough if I could determine how the shutdown sequence is ordered, or get a verbose output. But sadly, my fu for such stuff has run out. Anyone got pointers on where to start poking around? [I'm not looking for solutions, I'm unlikely to get those right off the bat, just looking for pointers atm] -- Alan McKinnon alan.mckin...@gmail.com
Re: [gentoo-user] OT: blanking disk of linux appliance
On 14 January 2013, at 02:11, Adam Carter wrote: > shred and dd available, but not srm etc > > I want to remove the user account info before the device is returned, but > dont want to cripple the device. Filesystem is ext3 with default mount > options, … What kind of device is it? I would have thought that a "device" would have a factory reset button, or that all configuration would be wiped upon uploading a new firmware. You say that you're "returning" the system - if it's a PC-based system that you have been renting from someone else, then surely they have security obligations. IMO the correct way to handle secure erasure of a system with a hard-drive is to wipe the whole thing before restoring the default system image. Stroller.
Re: [gentoo-user] Ekopath compiler failing to build - something about glibc development files
On 13 January 2013, at 06:53, Andrew Lowe wrote: > ... > From all of the above, I think the important part is that I need to > install some "glibc developement files". A google search doesn't point me in > the direction of what these might be. According to "eix glibc", I have debug > turned OFF - is this the problem? You can test this with: `USE=debug emerge -1 glibc && emerge ekopath` I doubt it'll make any difference, but you mention this, so that's how to rule it out. If you don't get any better answers here, I would check the ekopath bug tracker then ask on the ekopath mailing list or, if they don't have one, directly with the author. When you've established what the problem is, don't forget to file at bugs.gentoo.org Stroller.
