thatcks

7 ms·

1.
by thatcks 9mo ago
I am the parent, and any competent fsck should find these issues. Fsck traditionally explicitly verifies claimed free space against actual free space, and in a filesystem with ACLs it should also verify that filesystem level metadata like A
2.
by thatcks 9mo ago
Two examples that I can find are https://github.com/openzfs/zfs/issues/7910 , where very old versions of ZFS appear to have quietly written slightly incorrect ACL information, and https://bugs.launc
3.
by thatcks 9mo ago
The article is correct but it downplays an important limitation of ZFS scrubs when it talks about how they're different from fsck and chkdsk. As the article says (in different words), ZFS scrubs do not check filesystem objects for corr
4.
by thatcks 10mo ago
I can't remember the 10G firewall figures we got in testing off the top of my head, but we didn't max out the 10G network; I think we were getting somewhere in the 8G range. This is significantly better than our OpenBSD performanc
5.
by thatcks 10mo ago
The short version is that we wound up not feeling particularly enthused about OpenBSD itself. We have a much better developed framework for handling Ubuntu machines, making it simply easier to have some more Ubuntu machines instead of OpenB
6.
by thatcks 10mo ago
The computers that moved from OpenBSD to Ubuntu were our local resolving DNS servers. These don't use PF and we also wanted to switch from our previous OpenBSD setup to Bind, where we were already running Bind on Ubuntu for our DNS mas
7.
by thatcks 1y ago
There is no 'RAW' format as such. In practice, 'RAW' is a jargon term for "camera specific format with basically raw sensor readings and various additional information". Typically the various RAW formats don&#x
8.
by thatcks 1y ago
One problem is that you cannot have a universal format that is both truly raw and doesn't embed camera specific information. Camera sensors from different companies (and different generations) don't have the same color (or if you
9.
by thatcks 2y ago
This should be fixed for you now. To my surprise, some legitimate versions of Firefox report 'rv:109.0' with a Firefox/<ver> version that is not 109 (along with all of the crawlers that have latched on to 'rv:109.0
10.
by thatcks 2y ago
There was a little glitch in the scraping protection where an errant regular expression briefly blocked all Firefox versions. Which is especially bad because I (the blog author) exclusively use Firefox, so I was blocking myself. The managem
11.
by thatcks 2y ago
mypy sadly doesn't accept 'NewType('MyType', Any)'; it complains 'error: Argument 2 to NewType(...) must be subclassable (got "Any") [valid-newtype]'. Possibly this is allowed by other Python ty
12.
by thatcks 2y ago
My understanding is that the original SunOS windowing system was deeply connected to the kernel (for instance, windows were devices). The original purpose of the signal (in SunOS) appears to have been telling graphical programs that their w
13.
by thatcks 3y ago
That's mostly explained in Zack Weinberg's Fediverse post/answer: https://hackers.town/@zwol/111684752785283333 The one open thing is why BSD picked 'l' for lstat() to mean symbolic links (unle
14.
by thatcks 3y ago
A CLA is a legal contract between two parties. An open source license is a general grant of additional permissions under copyright (and sometimes some additional promises regarding things like patents), provided that the person using those
15.
by thatcks 3y ago
As far as I can see, generalized control flow complicates the situation because you need to propagate a variety of signalling results up the tree. Consider a for loop with a switch inside of it, inside of which is an if with a return; if yo
16.
by thatcks 4y ago
One of the problems with domain restrictions on CAs is that real world geography has turned out to not correlate with domain name 'geography' for general use. Organizations located in a country (or the EU or etc) will register the
17.
by thatcks 8y ago
This was (is) a lack of clarity in my entry. When the system locks up, it only recovers by rebooting through the BIOS; it doesn't resume operation from some suspension. System logs cut off abruptly at the time of the hang, with nothing
18.
by thatcks 8y ago
Apparently the use of an empty read is to probe to see if you get various errors or an immediate 0-size return. This is merely a 'may' requirement in the Single Unix Specification, so I'm not sure how portable it is in practi
19.
by thatcks 8y ago
I was going to assert that read significantly predates getchar, but it turns out that both may have existed from V1 Unix onward. However, getchar in V1 through V6 had a different EOF value from our familiar modern one of (-1); they all inst
20.
by thatcks 8y ago
Funny you should mention that: ; ls -l <archives path elided> -rwxr-xr-x. 1 cks man 65536 Dec 4 1991 ./bin/bin.ultrix-mips/atty I see that GIDs around here have drifted a bit over the years.
21.
by thatcks 8y ago
Raw mode by itself is essentially useless for almost all programs; in order to do anything with it, you already need an entire surrounding collection of code to handle editing (even basic things like backspacing) and so on. But line-oriente
22.
by thatcks 8y ago
I think I can boil down an example about why I prefer not to talk about trust by itself as it relates to CAs. Imagine a hypothetical version of Let's Encrypt that has all of its operational excellence and security, but that uses root c
23.
by thatcks 8y ago
My apologies for not being clear about my DigiNotar and StartComm examples. What I intended to point out here is that in neither case were these failures something which one could have discovered in advance by reasonable amounts of checking
24.
by thatcks 8y ago
I disagree. A CA's actual product (what you pay money for) is some magic bits that put a padlock in the browser URL bar or, alternately, allow you to do HTTPS with browsers without your visitors getting scary warnings from the browser
25.
by thatcks 8y ago
The C standard was (and is) written so that it allowed for machines that didn't have simple pointers; a highly relevant example for the time was x86 machines in real or protected mode using segment registers. Even when such environment
26.
by thatcks 8y ago
For switching to the real root filesystem, you want to read about the pivot_root system call, for example http://man7.org/linux/man-pages/man2/pivot_root.2.html (the usage examples in the pivot_root(8) manpag
27.
by thatcks 8y ago
How much things have changed depends on what level you look at the boot process at. For example, before 2.3.41 introduced the pivot_root system call, the starting process in the initial ramdisk wasn't run as PID 1 (as far as I remember
28.
by thatcks 8y ago
In many cases, the IP is the thing that comes first and foremost. You'll put it in DNS, you'll bind services to it (often because that's what the DNS is pointing to) or use it for outgoing traffic, and so on. Any interface na
29.
by thatcks 9y ago
You can enable legacy extensions but this is not the same as being able to use them. Many significant and important-to-me legacy extensions (such as FireGestures) are currently non-functional on Firefox Nightly and have been for some time.
30.
by thatcks 9y ago
As it happens, this isn't the case. Sun introduced NFS in SunOS 2, which unsurprisingly had the BSD view of load averages and did count NFS IO as short-term waits. A NFS server with problems could send client load averages up to monstr

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