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Unanswered Questions

35,835 questions with no upvoted or accepted answers
29
votes
0answers
6k views

git-upload-pack hangs indefinitely

I have the following call structure: Jenkins runs fab -Huser@host set_repository_commit_hash:123abc. set_repository_commit_hash runs git fetch with pty = False. The child process ssh git@github.com ...
23
votes
2answers
627 views

Is this how Linux paging should behave?

When my Linux system gets close to paging (i.e., in my case, 16GB ram almost full, 16GB swap completely empty) if a new process X tries to allocate some memory the system completely locks. That is, ...
22
votes
2answers
2k views

Where is the input method configuration file?

My ibus input method was broken after an update. So I switched to fcitx. Actually, there are a handful IMs (Input Methods) installed in my Fedora 19 system, e.g. fcitx, ibus, yong, etc. However, I ...
16
votes
1answer
863 views

Zsh tab completions not working as desired for partial paths

I want case-insensitive fuzzy completion for files and directories in zsh. After reading the manual for a few hours, this is what I came up with: zstyle ':completion:*:*:*:*:globbed-files' matcher 'r:...
15
votes
2answers
936 views

How to identify window by clicking in Wayland

I'd like to identify which process a window belongs to in Wayland. Is there anything like xprop for X that allows the user to pick a window by clicking and outputs all window details, including PID?
15
votes
0answers
705 views

What happens with unix stream ancillary data on partial reads?

So I've read lots of information on unix-stream ancillary data, but one thing missing from all the documentation is what is supposed to happen when there is a partial read? Suppose I'm receiving the ...
14
votes
1answer
360 views

Is it wrong to think of “memfd”s as accounted “to the process that owns the file”?

https://dvdhrm.wordpress.com/2014/06/10/memfd_create2/ Theoretically, you could achieve [memfd_create()] behavior without introducing new syscalls, like this: int fd = open("/tmp", O_RDWR | ...
14
votes
1answer
1k views

Scrolling with a WACOM tablet pen

I've got a wacom pen with a button. How can I trigger scrolling when moving the pen with the button pressed? According to xev, below, the triggering events are MotionNotify with state 0x200. If this ...
12
votes
1answer
4k views

xrandr scale 2x2 for multi display (4K HiDPI and Full HD mix) - blurred output

On Kubuntu 17.04 with nouveau, I'm trying to obtain a dual monitor setup with a 4K as main one and a Full HD (actually 1920x1200 but makes no difference) on the right. I'm using double KDE system ...
12
votes
0answers
4k views

Random “deauthenticating by local choice (Reason: 3=DEAUTH_LEAVING)”

I'm running uname -r 4.10.6-1-ARCH on my dell XPS 13 developer edition (2014). I'm currently having strange problems with my wifi (I use Networkamanger with nm-applet for KDE): 1) at the most ...
12
votes
1answer
11k views

Forcing zpool to use /dev/disk/by-id in Ubuntu Xenial

I'm giving the bundled OpenZFS on Ubuntu 16.04 Xenial a try. When creating pools, I always reference drives by their serials in /dev/disk/by-id/ (or /dev/disk/gpt on FreeBSD) for resiliency. Drives ...
12
votes
2answers
2k views

Kernel modesetting hangs my boot, but the ATI driver requires it

I have a late 2011 MacBook Pro. It has an integrated Intel video card and a discrete ATI video card. Ideally, I'd like my Xorg to use the ATI card with the free driver (no Catalyst). Here's the ...
12
votes
3answers
3k views

Mutt: Automatically subscribe to IMAP mailboxes

I'm using a bunch of mailboxes in mutt which are populated by imapfilter. To avoid manual reconfiguration (by going to the folder list and pressing s at every new entry), I'd like to configure mutt to ...
11
votes
0answers
3k views

How do I take a screen shot of my Xvfb buffer?

I'm using Amazon Linux. I want to run a headless chromium browser for use with my node.js Selnium tests. So I fire up my Xvfb server like so ... if ! pidof /usr/bin/Xvfb; then Xvfb :0 -screen 5 ...
11
votes
1answer
794 views

ACPI group/action undefined: processor / LNXCPU

If I unplug my laptop from the AC adapter, I will get ACPI errors like these: May 07 21:45:04 veritas root[7067]: ACPI group/action undefined: processor / LNXCPU:00 May 07 21:45:04 veritas root[7076]:...

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