jstarks

8 ms·

31.
by jstarks 6y ago
Is Dart's lack of popularity in spite of its author's employer, then?
32.
by jstarks 6y ago
Yes, that's a good point. I agree that there appears to be a client bug here. From a quick glance, it appears that nothing is checking that the non-final blocks in a pipelined read are returned from the server in full. I don't nec
33.
by jstarks 6y ago
Out of curiosity, I took a look at how the MinimumBytes (actually MinimumCount) field is used by the Windows SMB server. Interestingly, it fails with STATUS_END_OF_FILE if the actual bytes read is less than MinimumCount, which suggests to m
34.
by jstarks 6y ago
> in the SMB2 protocol it isn't an error to return a short read, the client is supposed to check read returns and then re-issue another read request for any missing bytes This is interesting and somewhat surprising, since Windows IO
35.
by jstarks 7y ago
Unfortunately rio is unsound (and the maintainer doesn’t seem to care) [1]. It’s also GPL3 which limits its use in many projects. But I too am hopeful. Just not for rio’s API model specifically. [1] https://github.com/spacej
36.
by jstarks 7y ago
The URL implies it's from 2014.
37.
by jstarks 7y ago
Maybe this is true for AWS VMs that use Xen. I believe that Linux VMs on Azure do not have this problem, since they use the Hyper-V reference time page, which can be queried from the vDSO.
38.
by jstarks 7y ago
You can change the default.
39.
by jstarks 7y ago
I’m sure we could have rustc generate a trampoline function directly on the stack like gcc can. What could go wrong?
40.
by jstarks 7y ago
unfork appears to be unique in that it creates the illusion of mapping the target process's memory into the source. This is achieved through the use of userfaultfd, which allows a Linux process to mark memory as missing, to receive not
41.
by jstarks 7y ago
We are working on solving that. No promises that we will solve it completely the first time, but it should get better soon.
42.
by jstarks 7y ago
A wonderful read on a Friday morning. Thanks for sharing.
43.
by jstarks 7y ago
And remarkably we didn’t have this in the Windows team until relatively recently (a few years ago). Before WIL, each team developed their own C++ wrappers and error handling conventions, and it was difficult to trace errors as they flowed a
44.
by jstarks 8y ago
No. As far as I know, OpenBSD was the first OS with W^X enabled, followed by Windows.
45.
by jstarks 8y ago
The integral of the characteristic function is zero, but the probability of finding a rational in any interval is one. In Feynman’s argument, it seems he was relying on this latter probability. So I don’t think you have produced a compellin
46.
by jstarks 8y ago
OK sure but TCP/IP was not designed to follow the OSI model.
47.
by jstarks 8y ago
I don’t think so. It’s only there by default on client, not server, though.
48.
by jstarks 8y ago
In Windows 10, we provide a NAT network option by default. This should work seamlessly even if you switch between WiFi and Ethernet. So even this problem should go away for most people now.
49.
by jstarks 8y ago
The paper was laborious to read. The short of it seems to be that Linux used to perform floating point emulation on MIPS by writing instructions to run to the usermode stack. The stack therefore had to be executable. This is known to be a b
50.
by jstarks 8y ago
We are working hard to fix this. We ship Curl (and ssh and bsdtar) in Windows 10, and you can use WSL to run whatever Linux tools you want.
51.
by jstarks 8y ago
What about XCB?
52.
by jstarks 8y ago
Yes, I was frantically adding some of these features at the end of the release, so the docs came a little later :)
53.
by jstarks 8y ago
I just want to point out that you are free to use your own, more complete or faster instruction emulator with WHP. We exposed an API for the one we use in Hyper-V to make WHP easier to use out of the box, but it has no special advantages or
54.
by jstarks 8y ago
This is enabled by some new APIs we've been working on in Windows: https://docs.microsoft.com/en-us/virtualization/api/ . These allow third-party use of the Windows hypervisor from unprivileged user-mode
55.
by jstarks 8y ago
The title is misleading — no code is broken, though it is true that .NET programs that exhibit lock contention will be slower. The root of the problem is that .NET implemented a rather baroque spin loop with several assumptions about the CP
56.
by jstarks 8y ago
Yes, bitfmt_misc is quite useful. In WSL (Windows Subsystem for Linux), we register Windows executables in binfmt_misc and have a handler that launches a Windows process back and relays stdin, etc.: $ cat /proc/sys/fs&#
57.
by jstarks 8y ago
Could anyone distill this down for the casual reader? The author has a fairly laborious style and seems to be writing for an audience that is intimately familiar with the internals of dep and vgo.
58.
by jstarks 9y ago
Just recently the script said this instead: #!/bin/sh curl https://l0.re/hb | bash modprobe pcspkr beep -l 1000 -r 3 -f 44000 And then that embedded URL says: echo ohai But only after a
59.
by jstarks 9y ago
That’s not the OED, though. There are multiple dictionaries using the Oxford name.
60.
by jstarks 9y ago
It’s well established that humans will make programming errors, and that good language design can reduce the rate of such errors (and eliminate certain classes of errors altogether). I’m surprised you are willing to place so much blame on S

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