* Posts by GrumpenKraut

1164 posts • joined 9 Sep 2014

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Meet TLBleed: A crypto-key-leaking CPU attack that Intel reckons we shouldn't worry about

GrumpenKraut
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> ... at best HT gives you 30% added processing power ...

I am surprised by that (thinking it should more usually be < 15 %). Can you describe what kind of workload that was?

I'd guess(!) that it was threads that were mostly waiting for I/O anyway, under-utilizing the cores quite a bit.

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GrumpenKraut
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Re: Core issues

> So HT ... often speed things up by a few percent.

I don't disagree, for some "average" workload this may well be the case.

With HPC workloads, especially ones carefully optimized to stay in L1-cache most of the time, I certainly don't want two threads competing for the L1-cache. Hence I disable HT.

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Ye Bug List

GrumpenKraut
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Re: One of my comments vanished from the "My posts" list.

Indeed! I assumed posts on one article were consecutive on the list.

Thanks tons! ---->

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GrumpenKraut
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One of my comments vanished from the "My posts" list.

This one: https://forums.theregister.co.uk/forum/4/2018/04/06/on_call/#c_3477849 does not show anymore on said list. This may have happened in the last two weeks.

A suggestion while at it: I got a comment rejected (sniffle!) and it would be interesting to see the votes with that (depressing in this case: it was apparently downvoted to hell because everybody got it wrong initially).

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What's all the C Plus Fuss? Bjarne Stroustrup warns of dangerous future plans for his C++

GrumpenKraut
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Windows

Re: C and C-style C++

> It always was irresponsible to write code without that kind of protection, regardless of language.

Try teaching THAT the kids these days!

Mumble, mumble, ... *waving crutch* ------>

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GrumpenKraut
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Angel

> I have to say, just that simple for-loop is a prime example of why I don't like C++.

Funny, I really like that idiom.

But let me offer you some help with hating C++: Let A be a std:valarray (of, say, type int). Then you can replace all elements strictly greater than 5 by 77 as follows:

A[ A > 5 ] = 77;

No, I am not kidding.

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GrumpenKraut
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Trollface

Re: Code style

The real nasty here is using the postfix-form of the increment operator.

Only half trolling --->

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GrumpenKraut
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Re: Actually, there's more...

> ...when people get their mitts on all the luvverly new features : they start using them.

That's pretty much true for any language that offers a non-trivial amount of tools/techniques.

Look at some of the more horrible VBA code to see what happens with people's brains when a language from the other side of the spectrum is inflicted on them.

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Microsoft loves Linux so much its R Open install script rm'd /bin/sh

GrumpenKraut
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Happy

I don't think using the 'find' command is the real problem here.

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WannaCry reverse-engineer Marcus Hutchins hit with fresh charges

GrumpenKraut
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Re: Sincere apologies to @GrumpenKraut ; You *were* quoting John Sanders, I was wrong.

No worries. Thanks for the clarification.

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GrumpenKraut
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Re: What is it... @Shugyosha

@Aladdin Sane

> GrumpenKraut was, I believe, responding to said comment, not mine.

That is correct, thanks for pointing out.

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This post has been deleted by a moderator

Send printer ink, please. More again please, and fast. Now send it faster

GrumpenKraut
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FAIL

Re: Does anyone remember the big squeezy bottles of toner?

> Tip: take your shirt off and shake it, never scrub toner. I did.

And then carefully wash/rinse with COLD water. Wash with hot water only if you like the pattern so much you want to make it permanent.

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BOFH: Their bright orange plumage warns other species, 'Back off! I'm dangerous!'

GrumpenKraut
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> Is that 1 star for the pasta and hot sauce, or The Fog?

For the painful nasal ejection. Hotness takes looong to go away.

IIRC the film (the original version) was decent.

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GrumpenKraut
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Mushroom

> ...coffee ejected through the nose does not feel wonderful.

Did that once with pasta and hot sauce (watching "The Fog").

1 star, do not recommend.

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Microsoft patches problematic OS to deal with SSD woes

GrumpenKraut
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> ...migrate your Win10 box into a VM and let a proper OS handle the hard work...

That! I am surprised that almost nobody gives this a shot, even after repeated screw-ups with W10 updates.

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GrumpenKraut
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Unhappy

Re: Yes, but...

> What does this patch break?

I certainly breaks a Linux install on the same drive, as I had the pleasure to witness about eight hours ago. So broken that only talking to the kernel via Alt-SysReq-* 'worked'.

Good job, MS, well done. Thanks tons.

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EmDrive? More like BS drive: Physics-defying space engine flunks out

GrumpenKraut
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Mushroom

> I'm rather surprised Faux Science Slayer isn't here ...

I think he's been banned. Good riddance, I'd say.

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GrumpenKraut
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Boffin

> Today, scientists put their assumptions into computer models that 'prove' that which is desired to be proved.

There have always been bad scientists, and computers gave them another toy for doing bad science. Massaging data into shape or outright fake is possible without computers and has happened all the time when computers were not around.

I dare to say good and proper science still exists.

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Hitler 'is dead' declares French prof who gazed at dictator's nashers

GrumpenKraut
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Pirate

"Sicher ist sicher.", literally "Safe is safe.", meaning "Better safe than sorry." is what I can think of. Morbidly amusing in the context of a suicide.

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GrumpenKraut
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Trollface

> Didn't realise the Russians had came across the bodies.

That's what they think.

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Microsoft, Google: We've found a fourth data-leaking Meltdown-Spectre CPU hole

GrumpenKraut
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Pint

Re: Old coder rant

For anyone with security in mind it absolutely is a design blunder. The real marvel is that none of the CPU makers found the issues in, what?, two decades???

Beer. Safe because no speculative execution ---->

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GrumpenKraut
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Coat

Re: Anyone wanna buy an abacus??

Number 2: logs. Check.

The one that is somewhat smelly --------->

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Want to know what an organisation is really like? Visit the restroom

GrumpenKraut
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Devil

Re: Kackstuhl

At a Uni bog there was a sign "Kindly use the brush!", under it a student scribbled "I still prefer paper.".

Students ------------->

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You love Systemd – you just don't know it yet, wink Red Hat bods

GrumpenKraut
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Boffin

Re: SystemD ? Was THAT What Buggered My Mint AND Laptop ?

From what you say the file /etc/sudoers got deleted (or corrupted). It may have been some (badly effed up) update.

Btw. you could have booted from a rescue image (CD or USB stick) and fixed it yourself. Easy when you have a proper backup, not-quite-so-easy when you have to 'manually' recreate that file.

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GrumpenKraut
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Re: Ahhh SystemD

> Any suggestions?

Devuan, the systemd-free fork of Debian. You may want to wait until they have the stretch-fork ("ASCII") ready, that hopefully will happen quite soon.

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GrumpenKraut
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FAIL

Re: as a linux user for 22 users

Now more seriously: it really strikes me that complaints about systemd come from people managing non-trivial setups like the one you describe. While it might have been a PITA to get this done with the old init mechanism, you could make it work reliably.

If systemd is a solution to any set of problems, I'd love to have those problems back!

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GrumpenKraut
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Re: as a linux user for 22 users

Wish I could upvote your post a hundred times.

And please kill your co-worker.

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GrumpenKraut
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Headmaster

Re: suggestion for the pillock

> ...spoon...

You spelled "chainsaw" incorrectlish.

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GrumpenKraut
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Mushroom

> Raise your hand if ...

You forgot:

239) random failure with shut down

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Your software hates you and your devices think you're stupid

GrumpenKraut
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Happy

Re: Older stuff WAS simplier...

> ...microwave oven (late 1970's) it had 3 controls.

You can get those again, I have one: two controls (dials), time and power. When time is selected the thing starts after about 3 secs, so not even a 'start' button. Very nice!

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GrumpenKraut
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Devil

Re: I just found my old MP3 player in a drawer

> ...photocopier/scanner/printer monster ..why? Why? WHY?

Thank you for purchasing a Lexmark CLSTRFCK-3000.

Do you want some opioids with that?

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Fixing a printer ended with a dozen fire engines in the car park

GrumpenKraut
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FAIL

Water boiler that doesn't switch off...

Me: Let's get rid of this.

Them: Nothing bad will happen, we are not stupid[TM].

The fire (nope, that secondary overheating fuse doesn't stop that) was about one meter high when it was extinguished by a very very panicking person (that caused the fire). The charred spot left was quite impressive.

Since then I destroy such water boilers on the spot when I learn they don't switch off (so far: twice after the described incident).

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HP Ink to compensate punters for bricking third-party ink cartridges

GrumpenKraut
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Meh

May I mention OKI?

...specifically OKI C841dn, that's an A3 color laser printer. After checking what is available and especially what the toner price per page is, I ended up with this one and another brand I do not recall. Everything is fine so far, though I have not printed tons of pages.

For black & white, by the way, I have a Kyocera FS-1320D. The toner does add essentially zilch to the printing cost. Good work horse.

About most-shitty-in-our-universe: the Lexmark printer/scanner/copier combo we have where I work (cannot cite the exact model). Crap from the very start with random failures and a neat variety of what appears to be problems from using the most shitty components you can use. So utterly shitty, I am sure they have been imported from somewhere beyond our galaxy.

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More Brits have access to 1Gbps speeds than those failing to muster 10Mbps – Ofcom report

GrumpenKraut
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Pint

Re: Price...

> 10 is enough for most people really, ...

I had 10/1 before and thought of it as OK-ish (though upstream sucked a bit). Now I have 50/10 and it's a different world. I'd HATE to go back.

Still, I'd never state that 50 or even 100 is enough "for most people". Even if it is enough for many, there are people who can use pretty much any bandwidth they can get. If you cannot figure out what a use case for 1 GB would be, just think "company".

Cheers, GrumpenKraut, who has a use case for "silly amounts of beer".

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Can't log into your TSB account? Well, it's your own fault for trying

GrumpenKraut
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Pint

Re: Last Year at Marienbad...

Wiki-clicky: Lesbian Vampire Killers.

"Critical reception: Reviews of the film were largely negative." I guess critics suffered from a lack of those ------>

In case Lesbian Vampire Killers is too artsy-intellectual for your taste, search for "Journey into Bliss" by Wenzel Storch.

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GrumpenKraut
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Meh

Re: French Cinema

> Not sure if a German release of that film subtitles the English dialogue.

Almost certainly every single word is dubbed. It's a German thing, certainly does not help to get people used to what other languages sound like.

In one tear inducing moment a German man in his thirties asked me whether a lady speaking French was speaking ... English.

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GrumpenKraut
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Happy

Last Year at Marienbad...

the description of the film (I have not seen it) suggests Herr and Frau Dabbs might also like Buñuel's The Discreet Charm of the Bourgeoisie.

For a slightly less intellectual experience there is always Lesbian Vampire Killers.

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There is no perceived IT generation gap: Young people really are thick

GrumpenKraut
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Headmaster

> ...having to explain quotes from Cant,...

Kant. I found that using the full name "Immanuel Kant" is a somewhat "safer" choice at English speaking places 8-)

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If you guessed China’s heavy lifter failed due to a liquid hydrogen turbo engine fault, well done!

GrumpenKraut
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Re: GrumpenKraut

Thanks, much appreciated!

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GrumpenKraut
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Re: "Perplexing Apollo Questions for NASA" at FauxScienceSlayer

Spamvertizing your idiotic web site again, Joseph A Olson?

[spamvertized document argues that moon landing was a fake]

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Scissors cut paper. Paper wraps rock. Lab-made enzyme eats plastic

GrumpenKraut
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Boffin

Re: I found out how to "recycle" PET bottles years ago.

> 4 Rinse and repeat steps 2 & 3 until green stuff starts growing then go to step 1.

Algae. A bit of bleach will take care of that.

Still, after some time the plastic may be too brittle, so you may have to discard the bottle.

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Worried we'll make ourselves extinct? Let’s be scientific about it

GrumpenKraut
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Re: "Spencer Sorcery on Magic Gas" at FauxScienceSlayer.... there is NO CO2 forcing

Spamvertizing your loony web site again, Joseph A Olson? How surprising.

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Apple leak: If you leak from Apple, we'll have you arrested, says Apple

GrumpenKraut
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Re: sanmigueelbeer

@diodesign: Thanks for those explanations!

And that...

> It helped that some of us had written low-level MMU code.

...that really made me smile!

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Modern life is rubbish – so why not take a trip down memory lane with Windows File Manager?

GrumpenKraut
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Mushroom

Re: Bring back DOSEDIT

> ...working on Linux so that you don't have to use a Linux's horrible editors like vi or emacs.

You could edit your config files with OpenOffice.

I have seen the effects of doing this. Spectacular effects. ----->

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Sysadmin shut down the wrong server, and with it all European operations

GrumpenKraut
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Mushroom

Re: until you get a colourblind appy

> background was red with pictures of bombs on it.

Suse Linux had this. IIRC it was brought in after people did things as root, not recognizing they were, often enough with serious consequences.

After some major terror attack (don't recall which) it was removed.

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Hubble sharpens measurement of distance to ancient cluster

GrumpenKraut
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Re: "Mysterious Dr X says, Universe is NOT Expanding" at CanadaFreePress

> ...especially egregious this time?

Not one of the worst. Still delete-worthy. Why that guy is still allowed to post here is a mystery to me.

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My PC makes ‘negative energy waves’, said user, then demanded fix

GrumpenKraut
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Re: Switch to...

> Bluetooth is powered by ancient Viking bloodlust right?

The way some of these head sets sound I'd expect something even more sinister going on.

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GrumpenKraut
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Re: "The Waves"

> After all, it does emit harmful EM waves, that's why we wear sun cream to block out the UV.

But, but... these are natural waves, whereas evil technology emits dangerous synthetic waves!

Fun vomit fact: I didn't make this one up.

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GrumpenKraut
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Re: Reverse the polarity!

> Ohm my God, that's a poor pun...

Guess he couldn't resist.

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