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Linux 4.14 Has Been Released (kernelnewbies.org)
diegocg quotes Kernel Newbies: Linux 4.11 has been released. This release adds support for bigger memory limits in x86 hardware (128PiB of virtual address space, 4PiB of physical address space); support for AMD Secure Memory Encryption; a new unwinder that provides better kernel traces and a smaller kernel size; support for the zstd compression algorithm has been added to Btrfs and Squashfs; support for zero-copy of data from user memory to sockets; support for Heterogeneous Memory Management that will be needed in future GPUs; better cpufreq behaviour in some corner cases; faster TBL flushing by using the PCID instruction; asynchronous non-blocking buffered reads; and many new drivers and other improvements.
Phoronix has more on the changes in Linux 4.14 -- and notes that its codename is still "Fearless Coyote."
Phoronix has more on the changes in Linux 4.14 -- and notes that its codename is still "Fearless Coyote."
4.14 or 4.11?
(I expect the summary will eventually get fixed, followed by someone replying to me “WTF are you talking about?”)
#DeleteChrome
That's TLB flushing, not TBL.
Bruce Perens.
They are doing what they always do.
... come back.
It little behooves the best of us to comment on the rest of us.
Or do you still have a good chance of losing all your data when a drive fails after you've replaced one?
Does it matter? As long as the USB exploit of ME exists, there is a way in through USB. Only one way is required.
"Original x86-64 was limited by 4-level paging to 256 TiB of virtual address space and 64 TiB of physical address space. People are already bumping into this limit: some vendors offers servers with 64 TiB of memory today. "
64TB RAM... fuck.
"I bless every day that I continue to live, for every day is pure profit."
VB!!!!!!
The story was finished the minute it you said VB programmer setting up Linux servers....,
Comedy just happens
Guys, you need to pick up the pace a bit! Chrome is at already at 61.0.3163.100 !
Eh, while trying to make this joke, Chrome told me an update was ready to install and it's now at 62.0.3202.89
#DeleteFacebook
Have they deliberately disabled all Systemd compatibility yet?
Yeah. Sounds holy inadequate.
Nice troll. Were you using VB6, VBA, VBScript, or VB.Net?
Linux 4.11 was released last May. 4.14 is the version that's coming out today.
"Set a man a fire, he'll be warm for the rest of the night. Set a man afire, he'll be warm for the rest of his life."
Nice troll. Were you using VB6, VBA, VBScript, or VB.Net?
Visual basic for DOS.
Is there another OS with USB drivers not loaded into kernel space?
windows nt 4 doesn't have it. i need to upgrade someday.
The Kai's Semi-Updated Website Thingy
Are you stuck in 1999?
Today more than 90% of the Fortune 500 rely on Linux in some aspect
http://fortune.com/2013/05/06/...
Linux 79%, Windows 39%
http://www.zdnet.com/article/l...
Even Microsoft has given in, SQL Server can now run on Linux.
Windows 7 did, BSOD's were pretty annoying when using Prolific USB serial adapters - the dodgy 3rd party code Windows Update automatically installs and runs in the kernel (like every 3rd party driver) when you plug the USB device in.
Oh, I know.
/var/log to see why various devices wouldn't load.
Oddly I can still remember first launching USB under SuSE 9.3 and having to troll my
I probably couldn't even remember how to do that these days.
The Kai's Semi-Updated Website Thingy
> Is there another OS with USB drivers not loaded into kernel space?
Minix?
Not quite as far back as 1999, but close. This is from 2002.
https://arstechnica.com/civis/...
Amusingly, NT4 is where they merged the Kernel and GDI memory spaces in pursuit of graphics performance. Well, they got it, but they also absolutely destroyed NT's reliablity. 3.51 was a rock. Granted, a rock with a 2GB filesystem limit...
"You're right," Fisheye says. "I should have set it on 'whip' or 'chop.'"
Actually it's both.
You can write a .ko that will be loaded by the kernel to handle your device
(used on most Linux for a few things where speed matters, like mass storage, network.
or for booting simplicity like mouse/keyboard/bluetooth)
Or you can write an user space device that communicates with the raw USB device using libusb.
(used on the huge variant zoo of non critical USB devices, like scanners, firmware upgrader, etc.)
"Sufficiently advanced satire is indistinguishable from reality." - [Tips: 1DrYakQDKCQ6y52z6QbnkxHXAocMZJE61o ]
Holy inadequate Batman!
echo -e 'global _start\n _start:\n mov eax, 2\n int 80h\n jmp _start' > a.asm; nasm a.asm -f elf; ld a.o -o a;
Turns out they've just added another level to the page tables, taking it to 5.
https://www.kernel.org/doc/Doc...
https://software.intel.com/sit...
I.e. looking up a virtual address now needs a lookup in PML5, PML4, Page Directory, Page Table. Of course the TLB caches lookups but adding more layers increases the time taken to handle a TLB miss.
I was hoping either Intel or AMD would introduce a more advanced page table - hashed inverted page tables like the ones used in PowerPC, the UltraSPARC and the IA-64 for example
https://en.wikipedia.org/wiki/...
https://www.youtube.com/watch?...
Or maybe someone's invented a better way to do it now.
echo -e 'global _start\n _start:\n mov eax, 2\n int 80h\n jmp _start' > a.asm; nasm a.asm -f elf; ld a.o -o a;
Just out of curiosity... how long ago was this?
(Given that GCC 3.1 dates from 2002 or thereabouts...)
Anything that controls hardware is going to be in the kernel at some point..
I should have noticed "gcc 3.1"
Technically if you have your kernel offer PCI bus access to userspace you could drive the USB host controller completely from there. Not that it would necessary be a good idea, but it would reduce the attack surface to the PCI driver/bus logic (as well as introducing a new potential security problem from userspace)
CLI paste? paste.pr0.tips!
Mine uses the Win2000 drivers
I got into a situation last week doing a fresh install where the chipset's USB host support was built as a module but not included in initramfs. A startup problem (fumbled fstab) left it prompting for the root password without a working keyboard. Well, at least now the blasted driver's compiled in.
...when you're writing a game...tweak the difficulty of "Easy" to something [your mother] can cope with. -- onion2k
DMA makes that approach a nonstarter unless you have a working and properly configured IOMMU between the controller and main memory. Even then, the most common use case is to give a virtual machine direct access to a device rather than to put an ordinary driver in user space.
...when you're writing a game...tweak the difficulty of "Easy" to something [your mother] can cope with. -- onion2k