Відео

i didn't even know you were allowed to debug the kernel that easily nice video!

writing code in vim is so difficult - big respect

Last time I used windbg it offloaded the dump onto an innaccessible directory despite admin privelages. Lmao

Nooo, windbg😢. Haha lol, its almost amazing how the app became a meme. Jokes aside, this is actually a very good video. You have earned a new subscriber.❤

i have a problem while making busybox when i do the make install part, there is a lot of errors and they all complain about undefined and undeclared things here are some of those errors: networking/tc.c:255:16: error: ‘TCA_CBQ_LSSOPT’ undeclared (first use in this function) 255 | if (tb[TCA_CBQ_LSSOPT]) { | ^~~~~~~~~~~~~~ networking/tc.c:256:61: error: invalid application of ‘sizeof’ to incomplete type ‘struct tc_cbq_lssopt’ 256 | if (RTA_PAYLOAD(tb[TCA_CBQ_LSSOPT]) < sizeof(*lss)) | ^ networking/tc.c:261:16: error: ‘TCA_CBQ_WRROPT’ undeclared (first use in this function) 261 | if (tb[TCA_CBQ_WRROPT]) { | ^~~~~~~~~~~~~~ networking/tc.c:262:61: error: invalid application of ‘sizeof’ to incomplete type ‘struct tc_cbq_wrropt’ 262 | if (RTA_PAYLOAD(tb[TCA_CBQ_WRROPT]) < sizeof(*wrr)) | ^ networking/tc.c:267:16: error: ‘TCA_CBQ_FOPT’ undeclared (first use in this function) 267 | if (tb[TCA_CBQ_FOPT]) { | ^~~~~~~~~~~~ networking/tc.c:268:59: error: invalid application of ‘sizeof’ to incomplete type ‘struct tc_cbq_fopt’ 268 | if (RTA_PAYLOAD(tb[TCA_CBQ_FOPT]) < sizeof(*fopt)) | ^ networking/tc.c:273:16: error: ‘TCA_CBQ_OVL_STRATEGY’ undeclared (first use in this function) 273 | if (tb[TCA_CBQ_OVL_STRATEGY]) { | ^~~~~~~~~~~~~~~~~~~~ networking/tc.c:274:67: error: invalid application of ‘sizeof’ to incomplete type ‘struct tc_cbq_ovl’ 274 | if (RTA_PAYLOAD(tb[TCA_CBQ_OVL_STRATEGY]) < sizeof(*ovl)) | ^ networking/tc.c:277:50: error: invalid application of ‘sizeof’ to incomplete type ‘struct tc_cbq_ovl’ 277 | (unsigned) sizeof(*ovl)); | ^ networking/tc.c:293:23: error: invalid use of undefined type ‘struct tc_cbq_lssopt’ 293 | if (lss && lss->flags) { | ^~ networking/tc.c:296:24: error: invalid use of undefined type ‘struct tc_cbq_lssopt’ 296 | if (lss->flags&TCF_CBQ_LSS_BOUNDED) { | ^~ networking/tc.c:296:32: error: ‘TCF_CBQ_LSS_BOUNDED’ undeclared (first use in this function) 296 | if (lss->flags&TCF_CBQ_LSS_BOUNDED) { | ^~~~~~~~~~~~~~~~~~~ networking/tc.c:300:24: error: invalid use of undefined type ‘struct tc_cbq_lssopt’ 300 | if (lss->flags&TCF_CBQ_LSS_ISOLATED) { | ^~ networking/tc.c:300:32: error: ‘TCF_CBQ_LSS_ISOLATED’ undeclared (first use in this function) 300 | if (lss->flags&TCF_CBQ_LSS_ISOLATED) { | ^~~~~~~~~~~~~~~~~~~~ networking/tc.c:308:24: error: invalid use of undefined type ‘struct tc_cbq_wrropt’ 308 | if (wrr->priority != TC_CBQ_MAXPRIO) | ^~ networking/tc.c:308:38: error: ‘TC_CBQ_MAXPRIO’ undeclared (first use in this function) 308 | if (wrr->priority != TC_CBQ_MAXPRIO) | ^~~~~~~~~~~~~~ networking/tc.c:309:46: error: invalid use of undefined type ‘struct tc_cbq_wrropt’ 309 | printf("prio %u", wrr->priority); | ^~ networking/tc.c:313:43: error: invalid use of undefined type ‘struct tc_cbq_wrropt’ 313 | printf("/%u ", wrr->cpriority); | ^~ networking/tc.c:314:32: error: invalid use of undefined type ‘struct tc_cbq_wrropt’ 314 | if (wrr->weight != 1) { | ^~ networking/tc.c:315:65: error: invalid use of undefined type ‘struct tc_cbq_wrropt’ 315 | print_rate(buf, sizeof(buf), wrr->weight); | ^~ networking/tc.c:318:32: error: invalid use of undefined type ‘struct tc_cbq_wrropt’ 318 | if (wrr->allot) | ^~ networking/tc.c:319:57: error: invalid use of undefined type ‘struct tc_cbq_wrropt’ 319 | printf("allot %ub ", wrr->allot);

Nice video, very informative. I am curious to know what is ramfs and cpio? What is newc?

I'm watching this video from FreeBSD 13.2 installed on my Lenovo T440s laptop. I have been using FreeBSD as a desktop OS for more than 3 years and don't want to switch back to Linux.

How difficult to add package manager for this distro? For example pacman or nix.

How can you link it static … im stuck at this point

AVERAGE dwm user morning routine

I did engineering work where I had to do alot of copying and pasting, well the ctrl+c failed alot and didnt know if I copied or not.. so made a program that would listen to my keyboard and show green in taskbar if I pressed ctrl+c or ctrl+v(paste) lol... and it helps.. well I student at university I was reminded him saying that they make ctrl difficult to press as in previous gaming it could be pressed with other buttons that disrupt the gaming so you really need to press it hard, my current laptop didnt needed a hard ctrl press but now it does for copy and paste what a shame... and if the manifacturers are really doing that to people do stop that garbage and make the press easier even for ctrl...

if you remove =0; it woks as you dont go outside the memory space allocated for your app.

What is that formula badness_for_task, how does it work?

If you can code this in HTML and CSS, you can code this in C.

Great video Sir. You are always to the point 👍

💖💖💖💖

2KB is still quite big for a program that does literally nothing. The smallest exe I ever saw, was on my Amiga. It was only 56 bytes large and was called "reboot". It does simply reboot the Amiga straight away without any prompt. And it wasn't a batch file or anything. Opening it in a hex editor really showed hex codes like a real exe file.

question : what happens when the parent process dies first? does it not create a zombie process? and if so how did the program work after killing the parent process? thank you for the content sir keep it up!

Wtf speed typing bro

I've wrote a bunch of functions in masm64 assembly and can use it. buy i can't create a .lib file and connect it to executable. My functions are inside namespace in C++. and it says that can't find a reference to function. Can you, please, help me with that? thank you:)))

Thanks bro. ❤

Smart.... Brains.... (Bugs Bunny reference 😄). Awesome work! Cheers🥂

I'm a little rusty on msvc++, but in mingw, things you can do, other than omitting the crt init code, include enabling optimization, and stripping symbols.

Dereferencing a null pointer causes a page fault in the processor, which the operating system turns into an access violation exception.

Very nice demonstration of debugging a remote Windows machine :)

Bless you man! You explained how to connect and debug Windows in 10 minutes! Always fantastic! 🥳😀

Nice video, WinDbg is so similar to gdb or maybe better 🤔. So to summarize working, user level function calls the windows api functions which in turn calls kernel functions which actually execute the operation (syscall). Right?

So much cool information. Very important error handling, right error handling with right tools and you can avoid hours of debugging an issue.

"Now you can see the rectangle is growing." But does it blend?

Now what if you remove the stack guard handler and allow it to "really" overflow? how would that system crash look? :D

Thanks for this video. I wonder how Windows uses this internally and when does it create and throw a blue screen. Man, Windows is amazing.

I would recommend making a video about hypervisor internals

Nice video. I didn't understand the compiler option /LD, what does it do? Also I noticed that nirsDll.lib was generated, when is lib file also needed along with dll?

How to remap Copilot key to R Ctrl key on newer windows laptops? Custom drivers or registry hacks? PowerToys works but doesn't work on all apps.

1:02 whats the other driver then?

Just casually adding syscalls to kernel... Yeah seems about right

thanks bro, really nice demonstration of windows driver debbuging, love it !!!!

Simple and straightforward 👌

Reminds me when I used to do assembly in DOS. I used this port to detect a keypress instead of using the BIOS int 16h keyboard services

Screw up some linux stuff next, please.

That's awesome! I'm wondering though why when the cmp instruction was set the address jumped from ...64 to ...68? It doesn't seem like the instruction is using any large values to fill up what I presume is 32 bytes (ig each address can store 8 bytes but please correct me if I'm wrong).

If I remember correctly, osdev may also mention about a specific byte sequence you send or read from ps/2 keyboard in order to initiate system reboot, which is often used in hobby kernels and I guess I've even seen it in linux somewhere

this is cool

yay, i am first

Thankyou very much, awesome. That worked really well for me. I am following arm assembly video tutorials, but so far their examples do not work on my Raspberry Pi 4b, your tutorial works awesome. Can you do a assembly series, would love to follow along. Assembly is excellent.

In Jesus' Name Amen ✝️. God bless you abundantly!

I was looking for this since I was 10 !!!!!! Thank you so much

The rudest StackOverflow user would still be no match for Linus at his most polit-- wait, it's not that kind of stack overflow?

your windows setup is nice! what window manager do you use? :)

Man, your channel is gold!❤