2,409 reputation
721
bio website schierlm.users.sourceforge.ne…
location Aichach, Germany
age 33
visits member for 5 years, 8 months
seen yesterday
java/c# coder and "hacker" (not as in cracker...)

Dec
13
comment Memory Swapping and OS freeze
Do you have any antivirus or other security software that hooks disk accesses? try to disable it. I never had an OS freeze (could still move the mouse and start up resource monitor) when swapping heavily in Windows 7. You can also try to lower the priority of your process with Process Explorer which should result in no slowdown of any other apps you are running, making debugging easier.
Nov
11
comment How to extract computer memory data when computers are frozen
If you anticipate such a situation, you can keep the hardware connected, however. Note that some expensive server boards (like from Dell) sometimes have that feature built into their remote administration cards. So if you have the RAC configured you can use it on an "unprepared" server in production if your AntiVirus (e. g.) freezes your machine, and give the dump to your AV vendor and sue for compensation :)
Nov
11
comment How to extract computer memory data when computers are frozen
I'd prefer to have it pre-connected. Technically it may work to connect a PCI (express) card during runtime, but as the bus is not specified for that, it may fry your hardware if you are unlucky. But there is no "software" preparation required (at least if you are running Windows and have a hibernation file configured).
Nov
11
comment How to extract computer memory data when computers are frozen
if you are a driver developer for drivers without actual hardware (like antivirus), use a VM for developing your drivers. If you are developing drivers for actual hardware and it locks your machine up, there is actually hardware equipment that can (a) force a NMI interrupt (making all your drivers stop and dump memory to a special location on hard disk) or (b) dump RAM somewhere else, by pressing a button outside the PC. But I think for the average SuperUser user, this equipment is "too expensive".
Oct
27
comment How to delete a file in Windows with a too long filename?
you can avoid the sharing by using subst x: C:\Some\first\part\of\the\long\path and afterwards delete the drive with subst x: /d
Aug
13
comment CTRL+T hot key in Firefox missing suddenly
Does it work to open another tab in a new tab you opened by the menu, without a page loaded in there? Some pages (most notably Twitter, lately) try to register this hotkey for something they like better than opening new tabs...
Jul
1
comment Batch file. Variable in variable
@dbenham while I have to admit that the other solutions are easier (but probably did not work in NT4 which was the last OS where I had more contact with batch programming - later I always tried to use vbs or PoSH), I don't see why VAR10 can be of any problem - the delims splits %I% to before = and %J% to after =, and = cannot be in variable names AFAIK.
Jun
6
comment How to find source of memory leak in Windows 7?
As page faults is an accumulating counter, it does not tell much if you don't know how long the process has been running. (Page Fault Delta is better to see a current snapshot of what is swapping, and correlating page faults to uptime if you want to know if the machine has been out of RAM earlier)
Jun
5
comment How to find source of memory leak in Windows 7?
I'd set up a few perfmon performance counters (length of processor queue, disk activity percentage, swap disk activity percentage, page faults, resident ram, virtual ram size, to name a few) and have a look how they change over time if you can see any discrepancies in these values - if you know what exactly goes up/down, monitor it in more detail.
Jun
5
comment How to find source of memory leak in Windows 7?
To rule out bad drivers, have a look at Paged and Nonpaged Pool Sizes (for example in Process Explorer) - if they get too high, check PoolMon (but you'll probably need to debug your vm with a kernel debugger to get more details)
Jun
1
comment What hardware device used to eat up 1.4GB of my 4GB RAM, and now suddenly after no hardware changes eats up 2.2GB?
Does not have such an option. On the other hand, trying to boot via UEFI once (unsuccessfully as a module was missing) reduced the available memory by another 21 MB :(
May
27
comment -bash: /etc/bash.bashrc: Permission denied I have no name
And another thing to check would be ldd $(which bash) and verify that all the dynamic libraries can be found and have the right permissions
May
27
comment -bash: /etc/bash.bashrc: Permission denied I have no name
permissions on /etc/bash.bashrc? On which filesystem does it reside? Any strange mount options for it? Does the output of id -G prints the correct group ids? - and for the "i have no name" - run hostname command and/or check file /etc/hostname
May
27
comment What hardware device used to eat up 1.4GB of my 4GB RAM, and now suddenly after no hardware changes eats up 2.2GB?
It is a Phoenix SecureCore Tiano Bios (called LENOVO BIOS), Version 2.61. support.lenovo.com/en_US/downloads/detail.page?DocID=DS029124
May
14
comment Change the behavior of Ctrl-Alt-Del / set a custom command on Ctrl-Alt-Del
You can customize what appears in that menu (as in, remove features you don't like) using group policy. But the appearance of the security screen cannot be removed without installing your own GINA.DLL (you'll have to program) - replacing taskmgr.exe is surely less dirty than replacing GINA.DLL, though :)
May
1
comment Troubleshooting USB Boot issues
Some ideas: Make sure you properly eject the USB drive after putting your stuff on it. And also check in disk management utility how your USB drive is partitioned and if its partition is marked Active (some BIOSes check on that) Also in case you boot from UEFI instead of BIOS/CSM, make sure that Legacy Boot / CSM support is enabled in your UEFI setup.
May
1
comment What hardware device used to eat up 1.4GB of my 4GB RAM, and now suddenly after no hardware changes eats up 2.2GB?
And this time - around Easter - it was the same, I tested a lot of stuff and did a lot. And somewhen on last Saturday the memory jumped down again :(
May
1
comment What hardware device used to eat up 1.4GB of my 4GB RAM, and now suddenly after no hardware changes eats up 2.2GB?
Currently installed 2.60, and previously don't remember exactly, but think it was older than 2.50. But I no longer think the BIOS had anything to do since the second "jump" happened without any BIOS upgrade so it was just something else I did shortly before/after the BIOS upgrade (I upgraded drivers, reinstalled the OS, tried some Linux out, etc. all almost at the same time around Christmas)
Apr
27
comment What hardware device used to eat up 1.4GB of my 4GB RAM, and now suddenly after no hardware changes eats up 2.2GB?
@Debra It's 64-bit Win7, which (for sure) can use >3.5GB (at work I have a machine with 12GB running Win7). And yes, I did (4 months ago when I posted my last question)
Apr
27
comment What hardware device used to eat up 1.4GB of my 4GB RAM, and now suddenly after no hardware changes eats up 2.2GB?
Nope, except disabling memory protection (DEP) there are no such options. And especially I'm 100% certain I did not change any BIOS options except boot priority between 1.4GB and 2.2GB eaten.