BenV's notes

Tag: linux

Linux 3.13 released!

by on Jan.20, 2014, under Software

Yay, another new linux kernel. Of course this broke the closed NVidia driver, I tried 331.38:

[  110.917769] nvidia: Unknown symbol acpi_os_wait_events_complete (err 0)

The fix for this is easy, unpack the installer and then patch file kernel/nv-acpi.c hack out line 306:


Run nvidia-installer and you should be good to go. Incredible that it always takes NVidia forever to fix these things, this bug has been known since at least 3.13-rc1. Oh well.

Next up, testing nftables. Looks like iptables will soon be obsolete 🙂
Here’s a nice howto to get you started –
Might you be wondering (like me) where the heck the libnftables git repository went: they decided to rename the thing to libnftnl. You can find the repository here –

Another thing: compiling nftables from git breaks on my Slackware64-current machine atm because 1. still points to libnftables (instead of libnftl), I assume this will be fixed within the hour. 2: it tries to compile against libreadline without linking libncurses.
Fix for that is running configure like: LDFLAGS=-lncurses ./configure

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Steam on Linux in a slackware32 chroot and mono

by on Oct.03, 2013, under Software

So far I like what Valve has been doing with Steam on Linux. Obviously there’s always a lot to be improved, but they try and it works pretty well for me.
Since they don’t have a native 64 bit steam client yet and I don’t want to clobber my Slackware64 install with multilibs and other 32 bit garbage I still have my old 32 bit Slackware-current install mounted that I can chroot into and run 32 bit garbage.
Running steam for me looks a bit like:

benv@steammachine:~$ su -lc "chroot /slackware32"
Password: jemoeder
root@steammachine:~# su benv
benv@steammachine:~$ steam
<gibberish after which steam pops up>

A bit of a hassle but it works, and I need that 32 bit chroot for running windows garbage in wine32 anyway.

Lately I noticed a lot of games that have a linux version under Steam crashed. When running them a window pops up, disappears, and your last played date is set to “Today” in steam. Trying to run the game on the console shows something like this:

benv@steammachine:~/.local/share/Steam/SteamApps/common/Ittle Dew:0>./IttleDew.x86
Set current directory to /home/benv/.local/share/Steam/SteamApps/common/Ittle Dew
Found path: /home/benv/.local/share/Steam/SteamApps/common/Ittle Dew/IttleDew.x86
Mono path[0] = '/home/benv/.local/share/Steam/SteamApps/common/Ittle Dew/IttleDew_Data/Managed'
Mono path[1] = '/home/benv/.local/share/Steam/SteamApps/common/Ittle Dew/IttleDew_Data/Mono'
Mono config path = '/home/benv/.local/share/Steam/SteamApps/common/Ittle Dew/IttleDew_Data/Mono/etc'
Aborted (core dumped)

The reason was simple, but took me a lot of digging through strace etc to figure out. (gdb didn’t help since the included libmono that caused this segmentation fault was obviously stripped). At some point the program tries to read from /sys/devices/, which failed since I hadn’t bothered to mount /sys in my chroot. My mistake. (note that I did bother to mount /dev to get gamepad support etc).

Strace output:
[pid 16978] openat(AT_FDCWD, "/sys/devices/", O_RDONLY|O_NONBLOCK|O_LARGEFILE|O_DIRECTORY|O_CLOEXEC) = -1 ENOENT (No such file or directory)

Conclusion: make sure that Steam for Linux games have access to /sys/devices/ 😉

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Linux 3.8 and NVIDIA driver

by on Feb.21, 2013, under Software

Good news everyone! Linux 3.8 has been released! Obviously I immediately fired up my compiled to upgrade from the by now ancient 3.6.8 kernel that I was running.
After rebooting my Slackware64 machine into the new kernel without a problem it was time to recompile the NVIDIA binary blob. You know, this piece of garbage. It doesn’t matter if you pick the latest official release version (seems to be 310.32 atm) or the beta that I picked, it won’t compile.
Running the installer will fail and leave you a /var/log/nvidia-installer.log that contains something like this:

root@machine:/# tail /var/log/nvidia-installer.log
 /tmp/selfgz7139/NVIDIA-Linux-x86_64-313.18/kernel/nv.c: In function ‘nv_kern_open’:
 /tmp/selfgz7139/NVIDIA-Linux-x86_64-313.18/kernel/nv.c:1521:30: warning: passing argument 2 of ‘request_irq’ from incompatible pointer type [enabled by default]
 In file included from /tmp/selfgz7139/NVIDIA-Linux-x86_64-313.18/kernel/nv-linux.h:128:0,
 from /tmp/selfgz7139/NVIDIA-Linux-x86_64-313.18/kernel/nv.c:13:
 include/linux/interrupt.h:130:1: note: expected ‘irq_handler_t’ but argument is of type ‘enum irqreturn_t (*)(int, void *, struct pt_regs *)
 /tmp/selfgz7139/NVIDIA-Linux-x86_64-313.18/kernel/nv.c:1525:17: error: implicit declaration of function ‘NV_TASKQUEUE_INIT’ [-Werror=implicit-function-declaration]
 /tmp/selfgz7139/NVIDIA-Linux-x86_64-313.18/kernel/nv.c:1537:25: warning: passing argument 2 of ‘request_irq’ from incompatible pointer type [enabled by default]
 In file included from /tmp/selfgz7139/NVIDIA-Linux-x86_64-313.18/kernel/nv-linux.h:128:0,
 from /tmp/selfgz7139/NVIDIA-Linux-x86_64-313.18/kernel/nv.c:13:
 include/linux/interrupt.h:130:1: note: expected ‘irq_handler_t’ but argument is of type ‘enum irqreturn_t (*)(int, void *, struct pt_regs *)
 cc1: some warnings being treated as errors
 make[3]: *** [/tmp/selfgz7139/NVIDIA-Linux-x86_64-313.18/kernel/nv.o] Error 1
 make[2]: *** [_module_/tmp/selfgz7139/NVIDIA-Linux-x86_64-313.18/kernel] Error 2
 nvidia.ko failed to build!
 make[1]: *** [module] Error 1
 make: *** [module] Error 2
 -> Error.
 ERROR: Unable to build the NVIDIA kernel module.

Fortunately here’s a little patch you can run to fix it. This assumes you have your linux 3.8 kernel sources symlinked in /usr/src/linux!

root@machine:/usr/src# wget -q
root@machine:/usr/src# bash -x
root@machine:/usr/src# cd NVIDIA-Linux-x86_64-313.18
root@machine:/usr/src/NVIDIA-Linux-x86_64-313.18# wget -q
root@machine:/usr/src/NVIDIA-Linux-x86_64-313.18# patch -p1 < nvidia-313.18-linux-3.8.patch
root@machine:/usr/src/NVIDIA-Linux-x86_64-313.18# ./nvidia-installer
# now it should work

Works for me at least 😉

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Steam for Linux released!

by on Feb.15, 2013, under Software

Steam Linux Sale

Steam Linux Games Sale

Yep, you read it right, they already released it. Not much new to report about the client though, they fixed a few things, but still no Slackware release, only Ubuntu. No problem there though, you can follow my post on how to get Steam for Linux running in a 32-bit Slackware chroot environment.

As you can see from the image above, they’re even having a celebration sale! An excellent time to pick up a few great games such as Faster Than Light — although you’re probably better off buying it from the Faster Than Light site so you’ll also get the DRM-free version 😉

Faster than Light

Faster than Light

Keep up the good work Steam!

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Linux Software Raid disk upgrades

by on Dec.16, 2012, under Software

Every now and then you find out that this huge disk you’ve been using — you know, the one that when you bought it you thought “How on earth am I ever going to fill this one up? My biggest game can fit on this disk 100 times!” — … isn’t as huge anymore. Or at least all the free space on it has disappeared and nagios is whining that your disk is full or about to explode.
Some background info: My fileserver here at home has 3 linux software raid arrays (raid-1 mirrors) on top of 4 physical disks. The first and also smallest array is used as root filesystem to boot from into Slackware linux. The second and third arrays are both big and simply for storage of games, music, series, etc.
When I created that first array a few years ago I figured “Hm, 20GB should be enough for a slackware install, right? Well, let’s just make it 50GB to be sure, we have plenty of space anyway on this huge disk“. Back then the ‘huge’ disks were 500GB. Meanwhile those 500GBs have been replaced with 1TB ones, but that array remained the same. Today I have a set of 1.5TB drives to replace the 1TB ones. Not a huge upgrade, but I didn’t have to buy these disks since they came from a server that had its drives upgraded as well. Anyhow, the 50GB partition managed to get filled with over 40GB of stuff that I can’t trash (mostly user home directories). I could move them to a different partition of course, but today we’re going to resize that partition to 100GB and put the rest in the storage partition.
Off-topic note: Do you also hate it when you’re typing in a browser and hit CRTL-w to delete your last word and realize you just closed your tab? I sure as heck do, good thing wordpress saves these drafts every now and then 🙂 (continue reading…)

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Steam coming to linux

by on Oct.27, 2012, under Software

More and more rumors were popping up about Steam coming to linux.
With the appearance of Windows 8 and their marketplace it’s not strange to see Steam trying to cover their asses.
If Microsoft is successful in convincing users to buy their garbage through the new M$ Marketplace Steam might lose a lot of customers.
Then again, people like me who already have a ton of stuff on steam will likely stick.
Also it’s quite likely that Steam will stay leaps ahead of the marketplace in features (cloud saves, achievements, ease of use, auto patching, etc).
Another possibly reason for Steam to go to linux is that they might be working on their own game console. If that thing works on linux that would be very interesting 🙂

Today Valve opened their Steam for Linux Beta Survey, you can find it here:
Seems like they’re trying to gather a batch of experienced linux users to try out their limited beta. In their blog post they mention 1000 users for the limited beta, so fill out the survey and cross your fingers 🙂
And if you ask me, nothing says experienced linux user like ‘Slackware linux!’ 🙂
Or if you’re on Pokemon OS you can simply wait until they open up the stuff for everyone, it can’t be long now 🙂

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Slackware64-current and udev 1.82

by on Jul.24, 2012, under Software

Some days after tinkering for a little bit you come to the realization that it might be better to stop doing anything with devices and just wait for the day to pass, because everything you touch breaks in the most spectacular ways. Of course this never stopped me from breaking even more, but I’m stupid like that.
Today is a day like that it seems. First our ADSL line at home received an upgrade to FTTH (aka a fiber connection), boosting our internet speed from a lousy 8Mbit down to 50Mbit down, and from less than 1Mbit upstream to 50Mbit upstream. (continue reading…)

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Slackware 14 getting closer

by on Jul.01, 2012, under Software

So I still run Slackware Linux on pretty much all of my machines, which I often smile upon when I see another Ubuntu/Debian/Pokemon update break stuff (that I then get to fix, details). However, running bleeding edge Slackware-current also draws some blood every now and then. (continue reading…)

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DRBD 8.4.1 compiling the kernel module

by on Feb.09, 2012, under Software

In an attempt to try out the latest DRBD version (8.4.1 atm) on a new Xen installation, I ran into some issues.
Initially I built the kernel with the included DRBD module, but I soon realized that this version was older than I wanted to play with (the included version was 8.3.11), so I grabbed the source and tried to build it myself. (continue reading…)

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Diablo 3 Beta and Wine

by on Sep.18, 2011, under Software

This morning my mailbox opened up with an email inviting me to the Diablo 3 Beta. After checking the headers
to make sure it wasn’t another battlenet phishing scam I noticed that the Received headers really came from, and they even signed the mail with a domainkey. Also they didn’t include some link but simply told me to go to battle net and get the goods there.

Diablo 3 Beta Invite

Diablo 3 Beta Invite

Surprisingly they state:

We also invite you to share your Diablo III beta experience with the world! All participants can take screen shots, capture video, and/or publicly disclose information about their beta test experience.

(instead of the usual non-disclosure agreement). So thanks Blizzard and a friend who works there who is no doubt responsible for getting me this invite in the first place 🙂 (continue reading…)

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