yama | Awesome node dashboard | Dashboard library
kandi X-RAY | yama Summary
kandi X-RAY | yama Summary
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QUESTION
So I want to debug a golang application that is running on k8s cluster, but I get the error message when I want to attach delve to the app. "could not attach to pid XXX: could not open debug info "
In the k8s deployments I added the needed privileges:
...ANSWER
Answered 2021-Feb-28 at 07:00You're passing -s -w
as flags to the linker.
According to the documentation of cmd/link
:
-s: Omit the symbol table and debug information.
-w: Omit the DWARF symbol table.
In short, your build command removes the information your debugger requires for debugging.
If you remove -ldflags
(or only -s -w
), it should work as expected.
QUESTION
I'm trying to configure launch.json in vscode in order to be able to debug my program inside the editor. I' m facing 126. The vscode documentation explains here, that I need to create the 10-ptrace.confe inside /etc/sysctl.d/ and append this into it :
...ANSWER
Answered 2021-Feb-18 at 15:44gdb generates assembly code that corresponds directly to your source code "optimized code" i can suggest to try "hex editor" and edit your binary code file it's available on windows and linux. hope that could help you
QUESTION
So I got a body of space separated text and I'm trying to mine names. These names are the first :
...ANSWER
Answered 2020-Nov-18 at 08:47If this is done in Microsoft Word then try the following:
QUESTION
Since I'm not happy with this approach and I got no answers, I'm trying another method to track the output of an already running program. I based this code on this Unix Stack Exchange and what I'm trying to do is just retrieve the log information of a program that is already running.
Obs: to use strace
without sudo
you need to allow it with the following command:
ANSWER
Answered 2020-Aug-25 at 23:41First, my reading of the strace(1) man page suggests that stderr is the default for that command (look for --output
in that page).
The output that you're getting from strace in the data
event is not guaranteed to be split on newline boundaries. When you're getting slow output, it will just happen to work correctly. Faster output will clump multiple lines together and may split lines at non-newline boundaries. For a quick fix, pipe stderr
to an instance of readline:
QUESTION
I'm experimenting with Linux Security Modules, trying to make one.
My main source of knowledge about how they're supposed to work are mailing lists archives and the existing LSMs' sources, plus the few pages about them in the Linux documentation.
I understand that there are two kinds of LSMs.
- Exclusive LSMs like SELinux / AppArmor, which have the
LSM_FLAG_EXCLUSIVE
flag set in their LSM definition. - Non-exclusive LSMs like Yama, capabilities or lockdown.
Browsing the source code of all these LSMs, I figured out non-exclusive ones never make use of security blobs. On the other hand, exclusive ones make heavy use of them.
For instance, see the AppArmor LSM definition, and the one for Yama.
So, can non-exclusive LSMs specify blob sizes and use this feature ?
Trying to find an answer, I explored the framework's source to see if maybe security blobs were switched between each LSM hook call, I guess that would allow each LSM to only have access to its own blobs and not those of another LSM.
However, we can see here in the LSM framework that it is not the case.
If my LSM declares blob sizes, can I use the blobs if my kernel also have SELinux, for instance, enabled ? Won't the structures from SELinux and mine overlap ?
...ANSWER
Answered 2020-Aug-22 at 22:43Alright, I found the relevant code in the LSM framework.
QED: Yes, all LSMs can use security blobs as long as they use the sizes structure as containing offsets once the module is ignited.
Explanation:
When you define your LSM, you use the DEFINE_LSM
macro followed by various informations, including a pointer to a struct lsm_blobs_sizes
.
During its own ignition, the LSM framework (which is mostly implemented in security/security.c
) manipulates your structure in a few operations.
- It stores, in its own instance of the structure (declared here), the sum of all LSM's security blobs sizes. Precisely, looking at this stack trace:
QUESTION
I have am335x related customized board and kernel(4.4.16) source code I configure the FTDI module driver. so after kernel start successfully I attach ftdi converter to usb port and then type lsmod command to check module list
...ANSWER
Answered 2020-Jul-11 at 14:41As you can see in the dmesg output:
[ 5.379690] usb 1-1: New USB device found, idVendor=10c4, idProduct=ea60
Looking that up, e.g. here: https://www.google.com/search?q=usb%20vendor%20id%2010c4
Tells you that it's a "Silicon Labs" USB device, who also make the CP2102.
The log does not identify other devices (ignore the linux kernel root hub). So either you have also a CP2102 attached (and the FTDI is not properly connected) or the device you think is a FTDI based device, is not.
In addition you can identify currently enumerated devices using the lsusb
command.
The automatic loading is usually done by udev
or a similar user space daemon/mechanism. A decent explanation can be found e.g. here: https://lwn.net/Articles/740455/
QUESTION
to display popups, I use the component from the material-ui library, please tell me how can I show this popup automatically every hour?
ANSWER
Answered 2020-Jun-06 at 17:51You can use setTimeout function in loop. It could set some variable in state like isTimeToShowDialog. And then render Dialog only if isTimeToShowDialog === true
QUESTION
i want to install gitlab on ubuntu 18.04 but :-( !.
...ANSWER
Answered 2019-Dec-13 at 04:58The "Error executing action
createon resource 'gitlab_sysctl[kernel.shmmax
" mostly points out to /sys
being read-only.
See for instance omnibus-gitlab
issue 1308
Set these values in
/etc/sysctl.conf
on the host, and runcat /etc/sysctl.conf /etc/sysctl.d/*.conf | sysctl -e -p -
on the host.
Then run reconfigure in your lxc container again, it should detect that the kernel is already running with the necessary settings, and not make any changes.Note: the values can be found here:
QUESTION
I am studying Javascript, for loop, and trying to put the same elements from two different arrays to another new array. It will print two common elements when I put 'console.log()' outside of For loop, However, if I put 'return console.log()' in if statement, it won't work properly(it shows only [ 'Ray' ].)
I would like to know the difference between them.
I will leave two codes for you. Thank you so much for your help.
...ANSWER
Answered 2019-Nov-06 at 13:49well of course... return
statements stops the execution of the function you're in, meaning it also breaks the for
loop you're in.
In your case, it gets to the return
only after finding the first mutual follower, which is Ray
, so it breaks the function and prints only ['ray']
.
BTW, because your return is on the console.log()
, it actually return out of the function the result of the console.log()
operation, which is undefined.
QUESTION
I am using Kubernetes in Google Cloud (GKE).
I have an application that is hoarding memory I need to take a process dump as indicated here. Kubernetes is going to kill the pod when it gets to the 512Mb of RAM.
So I connect to the pod
...ANSWER
Answered 2018-Nov-14 at 17:13I had similar issue. Try installing a correct version of LLDB. SOS plugin from specific dotnet version is linked to a specific version of LLDB. For example dotnet 2.0.5 is linked with LLDB 3.6, v.2.1.5 is linked with LLDB 3.9. Also this document might be helpful: Debugging CoreCLR
Note not all versions of LLDB are available for some OS. For example LLDB 3.6 is unavailable on Debian but available on Ubuntu.
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