[gentoo-user] Re: Ruby is borked on my system
On Thu, 26 Jun 2014 23:36:00 -0400, Ajai Khattri wrote: !!! All ebuilds that could satisfy virtual/rubygems[ruby_targets_ruby18] have been masked. You still have packages on your system that have been installed with the ruby18 RUBY_TARGET. It's not immediately clear which package that is from the output, but I suspect dev-ruby/rubygems? Re-emerging the packages still installed for ruby18 should fix this. Hans
Re: [gentoo-user] Tuneing ext4 for reliability (not necessaryly speed)
On 06/26/2014 05:13 PM, meino.cra...@gmx.de wrote: Hi, for backup storage (see previous thread) I decided to use ext4. After craling the net the reports I found about brtfs seemed to mixed to me. If there are alternatives I overlooked... I searched the net for answeres to the following question, but only found outdated answeres...: What options are recommended to set while initializing the filesystem and later via tune2fs to increase the reliability of the filesystem? Thank you very much in advance for any help! :) Best regards, mcc you might want to look up # tune2fs -o journal_data_ordered
Re: [gentoo-user] Problem on Hardware Update
On Thu, Jun 26, 2014 at 07:50:10PM -0300, João Matos wrote
I've updated the kernel (3.7.4 to 3.14.4), and the USB problem was solved,
I don't know why. :)
Now I'm having some other issues, but I've decide recompile the whole
system before solving them. At least I'm already using my gentoo.
I would boot with install ISO or rescueCD, chroot, make the necessary
changes and then emerge system and emerge world. The necessary
changes are...
1) CFLAGS. I use...
CFLAGS=-O2 -march=native -mfpmath=sse -fomit-frame-pointer -pipe
-fno-unwind-tables -fno-asynchronous-unwind-tables
CXXFLAGS=${CFLAGS}
2) Check your USE flags (in both make.conf and package.use). I have an
older Dell with an Intel. I have mmx mmxext sse sse2 sse3 ssse3 USE
flags. AMD cpus benefit from 3dnow 3dnowext and possibly other AMD-
specific flags.
--
Walter Dnes waltd...@waltdnes.org
I don't run desktop environments; I run useful applications
Re: [gentoo-user] Re: OT: Mapping random numbers (PRNG)
On 06/26/2014 11:07 PM, Kai Krakow wrote: It is worth noting that my approach has the tendency of generating random characters in sequence. sorry but had to share this http://dilbert.com/strips/comic/2001-10-25/
[gentoo-user] Help! - I cannot emerge anything any more
Hi, I am in a very strange situation where I cannot emerge anything any more. Since it occurs on two different machines it won't be a hardware problem. When I try to emerge a package, say portage, it builds it just fine and starts to install it (for portage, the last file shown is etc/etc-update.conf) but then it hangs forever - no CPU / no IO. It looks as if it has locked itself out. This is even with a single package emerge. The only interesting things which are shown by lsof are emerge 1747 root mem REG 0,16 46678298 /usr/lib64/gconv/gconv-modules.cache (path dev=0,18) emerge 1747 root0u CHR 136,0 0t03 /dev/pts/0 emerge 1747 root1u CHR 136,0 0t03 /dev/pts/0 emerge 1747 root2u CHR 136,0 0t03 /dev/pts/0 emerge 1747 root3w REG 8,17 149138217 /var/log/slim.log emerge 1747 root4u a_inode0,90 21 [eventpoll] emerge 1747 root5r FIFO0,8 0t091938 pipe emerge 1747 root6uW REG 0,30097094 /var/tmp/portage/sys-apps/.portage-.portage_lockfile emerge 1747 root7w FIFO0,8 0t091938 pipe emerge 1747 root8r FIFO 0,30 0t091946 /var/tmp/portage/sys-apps/portage-/.ipc_in emerge 1747 root 10u CHR5,2 0t0 1127 /dev/ptmx emerge 1747 root 11u CHR 136,0 0t03 /dev/pts/0 emerge 1747 root 12w REG 0,30 28295491945 /var/tmp/portage/sys-apps/portage-/temp/build.log Yes, I've tried to remove anything from /var/tmp/portage and the problem persists after reboot. Has anybody seen something similar and where to search for the problem? Many thanks, Helmut
Re: [gentoo-user] Re: Ruby is borked on my system
On Friday 27 June 2014 08:16:08 Hans de Graaff wrote: On Thu, 26 Jun 2014 23:36:00 -0400, Ajai Khattri wrote: !!! All ebuilds that could satisfy virtual/rubygems[ruby_targets_ruby18] have been masked. You still have packages on your system that have been installed with the ruby18 RUBY_TARGET. It's not immediately clear which package that is from the output, but I suspect dev-ruby/rubygems? Re-emerging the packages still installed for ruby18 should fix this. Some months ago I found myself wondering why I had ruby on this box at all. A little poking around revealed that the only thing that needed it was thin- provisioning. Once I'd added -thin to my USE flags and recompiled lvm2 I could get rid of ruby altogether. This won't suit everybody, I know, but maybe it's worth considering. -- Regards Peter
Re: [gentoo-user] Problem on Hardware Update
2014-06-27 5:54 GMT-03:00 Walter Dnes waltd...@waltdnes.org:
On Thu, Jun 26, 2014 at 07:50:10PM -0300, João Matos wrote
I've updated the kernel (3.7.4 to 3.14.4), and the USB problem was
solved,
I don't know why. :)
Now I'm having some other issues, but I've decide recompile the whole
system before solving them. At least I'm already using my gentoo.
I would boot with install ISO or rescueCD, chroot, make the necessary
changes and then emerge system and emerge world. The necessary
changes are...
I'm already doing it... I hope I can access my GUI after it.
1) CFLAGS. I use...
CFLAGS=-O2 -march=native -mfpmath=sse -fomit-frame-pointer -pipe
-fno-unwind-tables -fno-asynchronous-unwind-tables
CXXFLAGS=${CFLAGS}
I'm using
CFLAGS=-O2 -march=native -mprefer-avx128 -mvzeroupper -pipe
that I took from http://wiki.gentoo.org/wiki/Safe_CFLAGS#FX- . But
I'll take a look on these ones.
2) Check your USE flags (in both make.conf and package.use). I have an
older Dell with an Intel. I have mmx mmxext sse sse2 sse3 ssse3 USE
flags. AMD cpus benefit from 3dnow 3dnowext and possibly other AMD-
specific flags.
--
Walter Dnes waltd...@waltdnes.org
I don't run desktop environments; I run useful applications
--
João Neto
Linux User #461527
http://br.linkedin.com/pub/jo%C3%A3o-de-matos/7/316/552
Re: [gentoo-user] smartctrl drive error @60%
On Thursday 26 Jun 2014 16:08:52 Neil Bothwick wrote: On Thu, 26 Jun 2014 09:14:39 -0500, Dale wrote: Holy sheep. It worked. I lost my jaw yesterday I think it was. I'm not sure what I am going to be missing now. :-D Neil and Allan will so impressed. LOL OK. So, what will send me a message now? Do I need to tell it to send me something, say from smart stuff, or does it just know to do it? You tell cron where to mail reports by setting MAILTO=you@wherever at the top of /etc/crontab. It will then mail you every time a cronjob produces output. Or complete the /etc/ssmtp/ssmtp.conf and revaliases with the info I have sent you in this thread and set MAILTO=root in your /etc/crontab. I would think that your ISP providers in the US will be blocking outgoing port 25 to stop compromised MSWindows machines spamming the rest of us. If you use my suggestion there shouldn't be a problem. If your internet connection is down for some reason, you should get deadletter files in /root/ with the output. -- Regards, Mick signature.asc Description: This is a digitally signed message part.
Re: [gentoo-user] Re: Ruby is borked on my system
On Fri, 27 Jun 2014, Hans de Graaff wrote: On Thu, 26 Jun 2014 23:36:00 -0400, Ajai Khattri wrote: !!! All ebuilds that could satisfy virtual/rubygems[ruby_targets_ruby18] have been masked. You still have packages on your system that have been installed with the ruby18 RUBY_TARGET. It's not immediately clear which package that is from the output, but I suspect dev-ruby/rubygems? Re-emerging the packages still installed for ruby18 should fix this. I rebuiltd rubygems and the virtual but still no go. Then I rebuilt rdoc (which pulled in a bunch of other stuff) but now emerge world says I have nothing left to build. Hopefully I can revdep-rebuild and all should be OK. Thanks, -- A
Re: [gentoo-user] Re: OT: Mapping random numbers (PRNG)
On Jun 27, 2014, at 11:55, thegeezer thegee...@thegeezer.net wrote: On 06/26/2014 11:07 PM, Kai Krakow wrote: It is worth noting that my approach has the tendency of generating random characters in sequence. sorry but had to share this http://dilbert.com/strips/comic/2001-10-25/ This is a good one :) have really been thinking this same comic previosly when writing to this thread...
Re: [gentoo-user] Re: Ruby is borked on my system
Peter Humphrey pe...@prh.myzen.co.uk wrote: On Friday 27 June 2014 08:16:08 Hans de Graaff wrote: On Thu, 26 Jun 2014 23:36:00 -0400, Ajai Khattri wrote: !!! All ebuilds that could satisfy virtual/rubygems[ruby_targets_ruby18] have been masked. You still have packages on your system that have been installed with the ruby18 RUBY_TARGET. It's not immediately clear which package that is from the output, but I suspect dev-ruby/rubygems? Re-emerging the packages still installed for ruby18 should fix this. Some months ago I found myself wondering why I had ruby on this box at all. A little poking around revealed that the only thing that needed it was thin- provisioning. Once I'd added -thin to my USE flags and recompiled lvm2 I could get rid of ruby altogether. This won't suit everybody, I know, but maybe it's worth considering. What exactly does this do -- is it for a thin client or something? -- Your life is like a penny. You're going to lose it. The question is: How do you spend it? John Covici cov...@ccs.covici.com
[gentoo-user] Re: Re: OT: Mapping random numbers (PRNG)
thegeezer thegee...@thegeezer.net schrieb: On 06/26/2014 11:07 PM, Kai Krakow wrote: It is worth noting that my approach has the tendency of generating random characters in sequence. sorry but had to share this http://dilbert.com/strips/comic/2001-10-25/ :-) I'm no mathematician, but well, I think the swapping approach fixes it. What this makes clear, however, is that randomness on its own does not completely ensure unpredictable items if combined with other functions. One has to carefully think about it. I, for myself, would always stay away from using modulo to clip the random numbers. It will always create bias. My first idea introduced predictable followers (you always knew that the next char had a specific probability related to the tail length of the list). You can actually learn from Dilbert comics. ;-) -- Replies to list only preferred.
Re: [gentoo-user] smartctrl drive error @60%
On Fri, 27 Jun 2014 14:22:09 +0100, Mick wrote: You tell cron where to mail reports by setting MAILTO=you@wherever at the top of /etc/crontab. It will then mail you every time a cronjob produces output. Or complete the /etc/ssmtp/ssmtp.conf and revaliases with the info I have sent you in this thread and set MAILTO=root in your /etc/crontab. I would think that your ISP providers in the US will be blocking outgoing port 25 to stop compromised MSWindows machines spamming the rest of us. If you use my suggestion there shouldn't be a problem. It makes no difference whether you address it directly to your ISP address or via an alias. The ISP won't block port 25 connections to its own servers from its own customers, otherwise none of them could send email at all! -- Neil Bothwick NOTE: In order to control energy costs the light at the end of the tunnel has been shut off until further notice... signature.asc Description: PGP signature
Re: [gentoo-user] Re: Ruby is borked on my system
On Fri, 27 Jun 2014 12:39:29 -0400, cov...@ccs.covici.com wrote: Some months ago I found myself wondering why I had ruby on this box at all. A little poking around revealed that the only thing that needed it was thin- provisioning. Once I'd added -thin to my USE flags and recompiled lvm2 I could get rid of ruby altogether. This won't suit everybody, I know, but maybe it's worth considering. What exactly does this do -- is it for a thin client or something? No, it's an LVM feature. It's one of those if you don't know what it is you don't need it type features so I don't understand whey it is enabled by default in the ebuild. Thin volumes in LVM use only the space they need, so the space you allocate to them, so you can create volumes with a total size greater than the available disk space. -- Neil Bothwick The people who are wrapped up in themselves are overdressed. signature.asc Description: PGP signature
Re: [gentoo-user] Re: Re: OT: Mapping random numbers (PRNG)
On Fri, 27 Jun 2014 19:50:15 +0200, Kai Krakow wrote: You can actually learn from Dilbert comics. ;-) Unless you're a PHB, they never learn. -- Neil Bothwick You know how dumb the average person is? Well, statistically, half of them are even dumber than that - Lewton, P.I. signature.asc Description: PGP signature
Re: [gentoo-user] Re: OT: Mapping random numbers (PRNG)
On Jun 27, 2014, at 0:00, Kai Krakow hurikha...@gmail.com wrote:
Matti Nykyri matti.nyk...@iki.fi schrieb:
If you are looking a mathematically perfect solution there is a simple
one even if your list is not in the power of 2! Take 6 bits at a time of
the random data. If the result is 62 or 63 you will discard the data and
get the next 6 bits. This selectively modifies the random data but keeps
the probabilities in correct balance. Now the probability for index of
0-61 is 1/62 because the probability to get 62-63 out of 64 if 0.
Why not do just something like this?
index = 0;
while (true) {
index = (index + get_6bit_random()) % 62;
output char_array[index];
}
Done, no bits wasted. Should have perfect distribution also. We also don't
have to throw away random data just to stay within unaligned boundaries. The
unalignment is being taken over into the next loop so the error corrects
itself over time (it becomes distributed over the whole set).
Distribution will not be perfect. The same original problem persists.
Probability for index 0 to 1 will be 2/64 and for 2 to 61 it will be 1/64. Now
the addition changes this so that index 0 to 1 reflects to previous character
and not the original index.
The distribution of like 10GB of data should be quite even but not on a small
scale. The next char will depend on previous char. It is 100% more likely that
the next char is the same or one index above the previous char then any of the
other ones in the series. So it is likely that you will have long sets of same
character.
Random means that for next char the probability is always even, 1/62. And like
mentioned in Dilbert it is impossible to say that something is random but
possible to say that it isn't.
If wasting 6bit of data seems large, do this:
index = get_6bit_random();
while (index 61) {
index = 1;
index |= get_1bit_random();
index = 0x3F;
}
return index;
It will waste 1 bit at a time until result is less than 62. This will slightly
change probabilities though :/
[gentoo-user] Re: smartctrl drive error @60%
On 2014-06-27, Neil Bothwick n...@digimed.co.uk wrote: On Fri, 27 Jun 2014 14:22:09 +0100, Mick wrote: You tell cron where to mail reports by setting MAILTO=you@wherever at the top of /etc/crontab. It will then mail you every time a cronjob produces output. Or complete the /etc/ssmtp/ssmtp.conf and revaliases with the info I have sent you in this thread and set MAILTO=root in your /etc/crontab. I would think that your ISP providers in the US will be blocking outgoing port 25 to stop compromised MSWindows machines spamming the rest of us. If you use my suggestion there shouldn't be a problem. It makes no difference whether you address it directly to your ISP address or via an alias. The ISP won't block port 25 connections to its own servers from its own customers, otherwise none of them could send email at all! They _might_ block port 25 and require you to use SMTP/SSL on port 465. More likely, they would still allow an initial plaintext connection to port 25 and require use of the starttls command. -- Grant Edwards grant.b.edwardsYow! I wonder if I could at ever get started in the gmail.comcredit world?
Re: [gentoo-user] Re: smartctrl drive error @60%
On Fri, Jun 27, 2014 at 5:26 PM, Grant Edwards grant.b.edwa...@gmail.com wrote: They _might_ block port 25 and require you to use SMTP/SSL on port 465. More likely, they would still allow an initial plaintext connection to port 25 and require use of the starttls command. Check with your ISP. The rules vary. I have Verizon FIOS and I'm pretty sure they block port 25 from their own customers regardless of TLS. I guess that must means the virus writers have to write an extra 5 lines of code to extract the password from the configuration of whatever email software is in use... Rich
