meltdown | SparkFun FreeDay 2012 request proxy

I've essentially solved my issue by slapping together a work around, but I'm just wanting to understand why this behavior happens so first my code:

Does anyone have any idea why this code would cause my Xcode to go into meltdown. The CPU shoots up, the computer starts overheating, fans max out and I genuinely fear for my life. It ends up erroring out with: "The compiler is unable to type-check this expression in reasonable time; try breaking up the expression into distinct sub-expressions":

I've made a meme command with my bot and it's mean to send an image within an embed. Here is my current code, it sends the URL instead of the image.

So a git issue had me roll back about two weeks of work -

Im currently trying to pass an array of about 3300 string to a handlebars template then trying to print that as a pdf - my issue is I'm pretty sure my pupepteer URL is being cut off at 3000 characters. Im at a loss for a workaround.

For the last 3 months or so I'm having random errors where I can't bind a specific port where our Identity server is running on my local development workstation. At first I thought it's my broken machine, so I reset everything, which kinda fixed the issue for 2 months and now it is back.

In the meanwhile other developers saw the same issue. All of us who experience the issue are running Windows 10, but not everyone with Windows 10 has that issue.

Restarting windows after it was shut down with shutdown /s /f /t 0 is the only reliable solution to open up the port again. After I restart normally (due to windows updates or similar) the issue comes up again an I need to shut down windows with that command.

I wrote a small f# script to test which ports are affected. The exact error message I get is

An attempt was made to access a socket in a way forbidden by its access permissions

When I looked for it, the suggested solutions where to restart the machine, but that seems more like a work around, not a real solution. I've also found https://stackoverflow.com/a/10461978/621366 - but netstat -o doesn't list the port, neither does the tool TCPView. All of us are pretty sure that the port isn't occupied by anything. I also tried running netstat in an administrator console and similar commands inside bash on windows, but couldn't find anything. I can't even connect to the port via telnet, it says nothing is listening on the port.

those ports in question are for instance:

• 49670 - 49689
• 49710 - 49749
• 49760 - 49779
• 49811 - 49830
• 49843 - 49882
• 50197 - 50216

None of us modified anything on the windows firewall or has any additional anti virus tools installed except the windows 10 default ones. So everything should be on default values. And it also worked normally for ~10 months before it broke the first time and afterwards for 2 months. In both cases after some windows updates where installed. The last time it was a bios update (probably due to the meltdown / spectre issues?).

Also trying to open up the ports explicitly on the firewall didn't help.

According to this answer https://stackoverflow.com/a/23982901/621366 TCPView and netstat shouldn't miss any occupied ports, but even when I enable showing unconnected endpoints in TCPView, I don't see any of the ports where I get permission denied when trying to bind them. Here a screen from the occupied ports (I marked the bordering occupied ports which are right before or after the group of permission-denied-ports)

UPDATE:

I've noticed that it always seems to be 160 or 180 (exact numbers) of ports which have permission denied in the ranges of 40,000+ This seems oddly coincidental to me, so obviously something is occupying the ports on purpose, but what? I can't seem to find anything in the windows event logs (although I wouldn't know what to look for exactly) and none of those ports shows up any any of my firewall rules. Also shutting down docker for windows doesn't make any difference and when a colleague mentioned that for them it's enough to restart docker for windows (in the UI go to Reset->Restart) and right now for me, even restarting with the shutdown command doesn't work anymore.

UPDATE 2:

The output of netstat -ano run from an administrator powershell:

I have a problem that I am having a serious hard time figuring out, and I would be very grateful if anyone could provide some help.

I have a VPN server inside a local network behind a firewall that allows only outbound connections. My goal it to do a “UDP gender change” and make the VPN UDP port available to an external server where I can forward ports, by creating a reverse tunnel. Doing this using a TCP tunnel is trivial and easy to accomplish by using tools such as socat, nc or even ssh tunnels. VPN, however, should always be carried by UDP packets to avoid TCP meltdown issue (TCP over TCP).

UDP reverse tunnel created with socat/nc does not work as UDP is a connectionless protocol. This means that “client client” and “listen listen” configuration will allow data transfer only when client sends a packet first (impossible in a reverse connection).

Am I missing something? Is there any utility that can accomplish this task (by for example making UDP connection oriented by the use of some headers) without using a second VPN connection? Thank you very much

Every modern high-performance CPU of the x86/x86_64 architecture has some hierarchy of data caches: L1, L2, and sometimes L3 (and L4 in very rare cases), and data loaded from/to main RAM is cached in some of them.

Sometimes the programmer may want some data to not be cached in some or all cache levels (for example, when wanting to memset 16 GB of RAM and keep some data still in the cache): there are some non-temporal (NT) instructions for this like MOVNTDQA (https://stackoverflow.com/a/37092 http://lwn.net/Articles/255364/)

But is there a programmatic way (for some AMD or Intel CPU families like P3, P4, Core, Core i*, ...) to completely (but temporarily) turn off some or all levels of the cache, to change how every memory access instruction (globally or for some applications / regions of RAM) uses the memory hierarchy? For example: turn off L1, turn off L1 and L2? Or change every memory access type to "uncached" UC (CD+NW bits of CR0??? SDM vol3a pages 423 424, 425 and "Third-Level Cache Disable flag, bit 6 of the IA32_MISC_ENABLE MSR (Available only in processors based on Intel NetBurst microarchitecture) — Allows the L3 cache to be disabled and enabled, independently of the L1 and L2 caches.").

I think such action will help to protect data from cache side channel attacks/leaks like stealing AES keys, covert cache channels, Meltdown/Spectre. Although this disabling will have an enormous performance cost.

PS: I remember such a program posted many years ago on some technical news website, but can't find it now. It was just a Windows exe to write some magical values into an MSR and make every Windows program running after it very slow. The caches were turned off until reboot or until starting the program with the "undo" option.

So i've been stuck on this for a couple of days. I'm parsing through a JSON object that contains some info. In this object there's a list containing n number of contacts. Each of those has an id that can be used to create a url. In that url there's the phonenumber for that contact.

So i want to start creating an item, add some info, then loop through the contacts, and for each loop i want to add to that original item with the phonenumber found in the url.

My problem: How do i return the scraped phonenumber and add it to the item? If i end the main parse method with "yield items", none of the data scraped in the loop gets added to the item. But if i instead end the parseContact with "yield items" the entire item gets duplicated for each loop.

Please help, i'm about to have a meltdown :D

Here's the code:

I need to send kernel command line parameter in raspbian os to turn off spectre/meltdown patches. as i know we can do this in other linux distros through "/etc/default/grub" file by changing "GRUB_CMDLINE_LINUX=". but in raspbian os this file did not exist and even "grub-update" command and also "grub-mkconfig" did not installed.

could anyone tell me how i can pass kernel command line parameter in raspbian os?