1,171 reputation
413
bio website linuxintro.org
location Germany
age 37
visits member for 1 year, 1 month
seen 2 hours ago

I am blogging my experiences to http://www.linuxintro.org. I love everything low-level, for example strace'ing a process, programming assembler or sniffing the scsi bus.


Jan
26
comment How to know if a disk is an SSD or an HDD
and what happens if you have a fibrechannel storage behind /dev/sdx that is using FAST technology from EMC or liquid data storage tech from Dell? Both decide on the fly if they are putting data onto the storage system's SSDs or SAS disks.
Jan
23
awarded  Notable Question
Jan
7
comment Disk /dev/sda doesn't contain partition table
A bit more context would be useful. Has it ever worked? Do you have a backup (you are talking about recovery above)? Where is your backup? How did you do it? What did you do to get this error message?
Jan
1
comment How to kill a runaway cat?
Then please try echo 3 > /proc/sys/vm/drop_caches which will drop a lot of buffers as well.
Jan
1
reviewed Approve How to kill a runaway cat?
Jan
1
answered How to kill a runaway cat?
Jan
1
comment stdout redirect. sh: resource temporarily unavailable
then use sar or vmstat to monitor how much memory is available when the issue happens
Jan
1
comment stdout redirect. sh: resource temporarily unavailable
stackoverflow.com/questions/23803182/… suggests you are running out of sub-tasks or out of memory... or out of max allowed locked memory - try ulimit -a to find out about max locked memory.
Jan
1
comment stdout redirect. sh: resource temporarily unavailable
yes you need to reboot. Also you checked that the new value is active now, right?
Dec
31
comment stdout redirect. sh: resource temporarily unavailable
that means you can have up to 1024 open files. Run ulimit -a to see. Run lsof to see which files are open right now. Try setting ulimit -n 8096 and see if the situation improves.
Dec
31
comment stdout redirect. sh: resource temporarily unavailable
I agree with alexises, could you post the output of ulimit -n
Dec
29
comment Unable to Install Skype on Debian Jessy 64 Bit
that's really sad - I was never able to accomplish a single thing with Ekiga. I thought we were open to things that work. Is there a tutorial for Ekiga? BTW, never needed a tutorial for Skype.
Dec
27
comment Monitor com port with strace
it is a read, so this is sent from the serial port. What device do you have attached there?
Dec
27
comment Monitor com port with strace
Next time when you want to find out what file descriptor 5 is for, have a look at /proc/PID/fd/5
Dec
26
comment How to run google chrome as root in linux
well I have heard you should not run graphical applications as root and I decided I'd do it just to find out why not. I planned to do it till I found out. This is now 14 years ago.
Dec
17
awarded  Yearling
Dec
15
answered Video capture device: any chance of getting raw data?
Dec
12
comment Is it better to use $(pwd) or $PWD?
correct, instead of $() you could use backticks, but this will not be cascadable so I did not mention it
Dec
12
answered Is it better to use $(pwd) or $PWD?
Dec
6
comment Where do executables look for shared objects at runtime
"The default directories, normally /lib and /usr/lib." -> how can I find out if my system is normal?