[solved] What's wrong with dm-crypt/luks recently?several attempts now
Hello,
I run a full encrypted LVM on LUKS system, so I'm prompted for a password immediately after GRUB. That went fine long time, but starting with about linux 4.0.1, I have to enter my (long!) password several times until it finally works. It takes up to about 10 times before it is recognized. And no, I haven't forgot the passphrase and I am able to type. And my keyboard works, I'm using it right now to type this.
For now, I added a shorter key as a second password, with that it only takes about 2 or 3 attempts, but still, there seems to be something wrong. (And having a shorter password can't be the solution....)
As I haven't any typing feedback, I can't tell what's going wrong.
Do you have an idea how to debug this? Any sort of keyboard feedback would be appreciated. I wouldn't mind seeing the things I typed on my display, I'm alone when entering it.
Thanks.
Last edited by Carl Karl (2015-05-20 20:00:58)
Hm, that's strange: Now I had 5 reboots and only one failed attempt, even with the long passphrase!
(In german we call this „Vorführ-Effekt“, something like "show effect": the problem doesn't appear if you try to show it...)
But in that one failed attempt the message was:
No key available with this passphrase.
You can generate this message by tying a wrong passphrase any time obviously... ;-)
But OK, if it stays that way, that would be good enough. (Maybe my problem was fixed with the today released linux 4.0.3?) However, having more feedback while typing than just void would be nice...
Last edited by Carl Karl (2015-05-20 19:50:42)
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[solved] What's wrong with xbindkeys ?
Hello,
After an update last month, xbindkeys doesn't work anymore. I first thought it was comming from the package update from version 1.8.5-4 to 1.8.6-1. But the downgrading changes nothing.
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b
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Key press !
e.xkey.keycode=24
e.xkey.state=16
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b
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e.xkey.state=16
Key release !
e.xkey.keycode=27
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e.xkey.keycode=24
e.xkey.state=16
So, the key "b" is well detected and the command seems to be executed. In order to check that, I have changed the ~/.xbindkeysrc to:
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b
I start again:
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displayName = :0
rc file = /home/user/.xbindkeysrc
rc guile file = /home/user/.xbindkeysrc.scm
getting rc guile file /home/user/.xbindkeysrc.scm.
WARNING : /home/user/.xbindkeysrc.scm not found or reading not allowed.
1 keys in /home/user/.xbindkeysrc
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"env > /tmp/xbtest.log"
b
starting loop...
Key press !
e.xkey.keycode=24
e.xkey.state=16
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b
got screen 0 for window 264
Start program with fork+exec call
Key release !
e.xkey.keycode=24
e.xkey.state=16
We can see that this time the output is shorted because the key "o" is not detected. So, now:
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XDG_SESSION_ID=c1
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WINDOWID=37748742
SHELL_SESSION_ID=e40298450a414000a0d0344051d20a7c
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DESKTOP_SESSION=default
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The command is perfectly run. So, what's wrong ? Why
"xdotool key o"
b
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I have also tried xvkbd, even with full path (/usr/bin/xdotool, /usr/bin/xvkbd), nothing works.
Any suggestions ?
Thanks.
Last edited by quasar (2015-02-07 00:15:49)It works :-) Thank you ^^
But it was maybe a too simple case. This one does not work:
"xdotool getwindowfocus key ctrl+o"
k
After a lot of testing, xbindkeys works fine, xdotool and xvkbd work fine too. I have tried that
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k
without success.
But since
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"sleep 2 && xdotool getwindowfocus key --clearmodifiers ctrl+o"
k
and it worked fine. The difference is, when xdotool is running, thanks to sleep, I have no keys pressed.
To be clear, the problem seems to come from the keys pressed (hardware) during xdotool sends key (software). But since all software haven't changed (xbindkeys, xdotool, xvkbd), and since kde has been updated to 5.6 during the pacman update, I suspect it comes from KDE.
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[SOLVED]What is wrong with this invocation of prename?
Hi
I've got a bunch of files with numbers in the name. I want to rename the ones numbered 1 - 9 to add a leading zero, so they sort correctly lexicographically.
I used $1 to back-reference the digit, but it didn't work and I don't know why:
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file_1.txt renamed as file_0.txt
file_2.txt renamed as file_0.txt
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Last edited by anotherjohn (2009-09-25 21:46:27)Hi folks, thanks for your replies.
brisbin33: The -n option to prename makes it tell you what it would have done, without actually doing it. Also, your solution would add a leading '0' to the two-digit numbers as well, but thanks for trying
N-Acc wrote:try escaping the `$1' in your regex or use single quotes.. otherwise it is intepreted by the shell.
We have a winner!
I can't *believe* I didn't try that. In fact, I'm pretty sure I did try that. Either way, it works now, thanks
[~] prename -n "s/_(\d)\.txt/_0\$1\.txt/" *
file_1.txt renamed as file_01.txt
file_2.txt renamed as file_02.txt
file_3.txt renamed as file_03.txt
file_4.txt renamed as file_04.txt
file_5.txt renamed as file_05.txt
file_6.txt renamed as file_06.txt
file_7.txt renamed as file_07.txt
file_8.txt renamed as file_08.txt
file_9.txt renamed as file_09.txt
Incidentally, 'echo' shows the problem immediately:
[~] echo prename -n "s/_(\d)\.txt/_0$1\.txt/"
prename -n s/_(\d)\.txt/_0\.txt/
[~] echo prename -n "s/_(\d)\.txt/_0\$1\.txt/"
prename -n s/_(\d)\.txt/_0$1\.txt/
Last edited by anotherjohn (2009-09-25 21:04:59) -
What's wrong with the internet conection on my ipad now i have upgraded to ios7
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(A) Reset iPad
Hold down the Sleep/Wake button and the Home button at the same time for at least ten seconds, until the Apple logo appears
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Settings>General>Reset>Reset all settings
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What is the exact error message you're receiving?
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When i'm using a string control to select on the case structure, my vi is working as expected. But when i'm using the output of the read visa which outputs exactly the same string as the one i used in control string, the vi is not working as i expect it.
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Solved!
Go to Solution.altenbach wrote:
crossrulz wrote:
I recommend using a Trim Whitespace on the string going into your case selector to remove this End Of Line.
I agree that trim whitespace should be all you need. For good measure, you should also set the case structure for case insensitive matching.
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I'm getting an error with this. What's wrong with my syntax?
Error: Scene 1, Layer 'actions', Frame 1, Line 21 1084: Syntax error: expecting rightparen before semicolon.
// Line 21
holder.load(new URLRequest("Interactive_StrategyMap.swf" + "?random=" + Math.random();));Hi Ned,
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Borderless URXVT, what's wrong with my .Xdefaults?
I'm trying to get my URXVT on my Openbox desktop. I followed the little guide here: http://wiki.archlinux.org/index.php/Ope … background. That doesn't work for me.
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I've had this working perfectly about 10 months ago, but as a stupid person I formatted and lost it all. So, can anyone help me please?
Thanks.Nope, didn't work It hates me. Why would it work on my desktop x86_64 and not my laptop x86_64?
sHyLoCk wrote:
Zetsumei wrote:Still nothing.
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Here's the result as I wanted:
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For like 2 weeks now I do not get any alert for a message.
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**bleep**????
C'mon nokia help here?
I have rebooted my phone plenty times.
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Guys,
What is wrong with snippet below? Why both conditions sometimes are true:
if ( fine != suspect ) {
if ( fine == suspect ) {
I am new to Java and had a long arguments, but failed to prove anything.
Could you help me please? What do you think?
public class VWC {
private volatile boolean suspect;
private boolean fine;
private boolean anotherFine;
private Object lock = new Object();
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private VWC() {
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synchronized( lock ) {
try {
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Steve, thank you very much for the comprehensive explanation. Sorry, actually I wanted to see how many developers are aware of volatile variables specifics and how many of them are open minded. Not sure how this question addresses either of those questions.
This snippet is a stripped down version of production code. Developer relied of volatility, inverted boolean in one thread and expected to see the change right away in other thread. Unfortunately value propagation takes time (not a milliseconds though), Without volatile, yes it takes time. With volatile, no, the updated value is seen instantly (though accessing the volatile variable is less efficient than accessing a thread local variable because it has to retrieve it from main memory first and then use it...)
so second thread sometimes misses value change; it happens approximately once per million on my box. That is not what is happening in your example code. It is not that suspect is being changed and the second thread misses the change. What is happening is approximately once per million times through your loop the value of suspect is being switched between the two if statements. Sequentially your computer is doing this:
1) [Thread A] if ( fine != suspect ) {
2) [Thread A] System.err.println( "be aware: " + (++failures) + "/ " + iterations);
3) [Thread B] suspect = ! suspect;
4) [Thread A] if ( fine == suspect ) {
5) [Thread A] System.err.println( "is it real?" );
I found that bug in production code and proposed to use synchronized blocks at least. However, all team members said volatile variables work perfectly. I typed this snippet as a concept proof, however, nobody took a look and f course nobody tried to compile and see how volatile vars work in reality. I would ignore this issue unless I had to fix this bug. However, they still disagree and claim there is some other problem and I have to solve it. I am absolutely out of options now; I found the bug, however, they ignore my finding and demand me to find something else.Edited by: stevejluke on Jul 5, 2008 10:10 PM -
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