#soylent | Logs for 2022-01-10
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[02:30:46] -!- SoyCow6375 [SoyCow6375!~5bc4dc42@91.196.pok.my] has joined #soylent
[02:31:04] <SoyCow6375> I wonder how many hipster faggots are regretting their Harry Potter tattoos?
[02:31:41] <SoyCow6375> Given that their creator is a TERF and probably not nearly as "progressive" as she lets on. She got hers already, she don't need to give a fucc
[02:32:29] <SoyCow6375> So Rowling is anti-trannie, and Harvey Weinstein's Hermione is posting Palestinian flags
[02:32:45] <SoyCow6375> Leading Jewish politicians to respond with "Oy Vey, it's ANUDDAH SHOAH!"
[02:33:43] <SoyCow6375> What's hilarious is that most of the people with Harry Potter tats are probably Judeo-Communists
[02:33:52] <SoyCow6375> And a few good Goys
[02:34:29] <SoyCow6375> I wonder where all those Jews complaining about the "bankers" were when they were profiting from Rowlings' movies?
[02:35:29] <SoyCow6375> Hell, I might watch Harry Potter movies just to watch the Banker scenes
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[02:47:08] <Bender> [SoylentNews] - Dogs Know When You're Speaking a Different Language -- and Talking Nonsense - https://sylnt.us - woof-woof-bark-miaow
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[04:53:32] <SoyCow6375> LOL, New York Presbytarian just had a commercial for being the number one in heart transplants.
[04:53:45] <SoyCow6375> Looks like we know where all the Jews are profiting from harvested organs.
[04:54:13] <SoyCow6375> 6 hospitals in L.A. were, many years ago, implicated in "off-book" organ transplants
[04:54:32] <SoyCow6375> They weren't named, of course, otherwise Chabad would have assassinated the reporter.
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[05:27:06] <Bender> [SoylentNews] - Making Quantum Computers Even More Powerful - https://sylnt.us - doing-quantum-pushups
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[05:30:15] <tor-client> damn i'm cool
[05:30:49] <tor-client> cooler than any kool koloured kids
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[05:38:38] <tor-client> puzzling, tor browser generally sucks, but in tails, it is satisfactory
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[06:01:56] <inz> FatPhil, tried a few more ways to do the same, but yours seems the fastest
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[06:31:47] <inz> FatPhil, actually; that original xor-thing is faster, if the flipflop is changed to uint64_t
[06:42:25] <inz> (down to ~2.41)
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[07:28:03] <SoyCow9708> You know those old Warner Brothers cartoons, when Wile E. Coyote is chasing the road runner?
[07:28:36] <inz> meep meep
[07:29:06] <SoyCow9708> There comes a point when Wile E. will run off the edge of a cliff,
[07:29:23] <SoyCow9708> and will stay there for a few seconds until he looks downward.
[07:30:18] <SoyCow9708> That's Jews rationalizing Harry Potter's description of "bankers"
[07:30:39] <SoyCow9708> Only now are they looking down, complaining about it. After how many years?
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[07:36:28] <inz> sorry, I fed the troll
[07:42:24] <FatPhil> fuck, my original RasPi has apparently died, and the backup one I have refuses to boot too :(
[07:53:33] <inz> is your memory card ok?
[07:59:14] <FatPhil> nope, I did manage to partially boot, but then got an infinitude of mmc errors
[07:59:48] <FatPhil> now I'm not even getting the rainbow splash, which is from ROM
[08:01:46] <FatPhil> sorry, 2nd Pi doesn't even get the rainbow splash, first one's ggets to the kernel loading stage
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[08:06:16] <Bender> [SoylentNews] - "Invisibility Cloaks" May Soon be Real: Creating Invisibility with Superconducting Materials - https://sylnt.us - spherical-cow[l]?
[09:07:27] <janrinok> sounds like you might have had a brown out or a power surge?
[09:08:48] <janrinok> I refuse to buy a backup power supply and power smoothing box that costs over 100 times the cost of the device it is protecting...
[09:10:07] <janrinok> sorry - very rude of me - Good Morning, one and all!
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[09:17:22] <chromas> But you get another device to plug into the box
[09:18:10] <chromas> You can monitor the ups by usb
[09:18:46] <chromas> You can get a cheap one too; PCs don't care about smooth sine waves
[09:19:52] <boru> Does it support PXE or USB boot? If so, you could boot from RAM to investigate the source of the problem.
[09:20:01] <boru> e.g. fsck it.
[09:20:21] <boru> Or use testdisk to attempt recovery of any stuff you need.
[09:20:48] <chromas> If you decide to replace it, there are several other fruits available now
[09:21:29] <boru> I have a bunch of sundry ARM OBCs laying around that I got from jobs and ordering electronics for free. If you want a replacement, I can send you something.
[09:21:49] <boru> Including one which supports SATA3.
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[10:10:22] <FatPhil> it's an ancient B, I was heading to the shopping centre with the RPi shop today anyway for some more parafin
[10:11:23] <FatPhil> I did notice a banana pi on sale at the local auction website, but I want this up and running by the end of the day, it's a machine I use all the time.
[10:12:58] <FatPhil> the board that does boot up the hw is doing this: https://raspberrypi.stackexchange.com
[10:12:59] <systemd> ^ 03Raspberry not booting correctly (mmc0: fsm1, hsts 1)
[10:14:11] <inz> I've had 2 SD cards die on me in an RPi
[10:14:22] <FatPhil> I thik it was a cheap-arse card.
[10:14:47] <boru> Are you using a journalling FS?
[10:14:58] <boru> If so, that probably puts you in failure MTR range pretty quickly.
[10:15:13] <FatPhil> herp derp, I was going to head to the office for a card reader to see what I can clone, and I've just realised I have one here on the lappy
[10:15:22] <boru> I think those cards are mostly NAND flash, as well.
[10:15:47] <FatPhil> the umportant partition was ext4, so journalled
[10:15:57] <boru> There you are, then.
[10:16:15] <boru> IMHO, get a NAS and NFS the important stuff.
[10:19:50] <FatPhil> the PSU this is on has not given any problems in the past. Managed the 1200 day uptime on that board
[10:20:14] <FatPhil> dd on the laptop is progressing, erm, non-linearly...
[10:20:33] <FatPhil> had a terrible night's sleep and I'm afraid to touch anything presently.
[10:21:09] <FatPhil> I was breaking almost everything I touched yesterday too.
[10:24:46] <FatPhil> OK, dd's cmopletely stalled now. I'll have to try an rsync instead, I guess.
[10:25:38] <FatPhil> yup, finally crapped out with dd: error reading /dev/mmcblk0: input/output error
[10:26:27] <boru> I thought that FS handled bad blocks.
[10:26:47] <boru> Sounds like it's hosed, though.
[10:27:03] <boru> If you need stuff off it, try testdisk.
[10:27:23] <boru> But don't write to it or else you'll probably lose blocks of files.
[10:29:23] <inz> FatPhil, you can also try (g)ddrescue to get an image
[10:29:49] <inz> It won't read the broken parts, but will not bail out on error
[10:32:13] <boru> testdisk will try to read the broken parts, but if it's managed flash, the controller might just skip them or stall.
[10:34:25] <FatPhil> ddrescue started, I'll head to lunch now
[11:04:35] <inz> FatPhil, seems that using sqrt instead of sqrtl (for perfect square checking) would save some ~10% run time too, but as double only has 52(+1) bits precision, we're already past that point (the limit would be around 67M)
[11:10:28] <FatPhil> it might still work though, as long as sqrt is correct, we're comparing the square of the integer exactly still
[11:10:50] <inz> Was just about to write, that it indeed can handle all squares correctly
[11:11:34] <FatPhil> I think here might be a corner case where the float gets rounded p above a square
[11:11:36] <inz> Did a test program that tested every square and it failed at 4294967297, as expected
[11:12:12] <inz> And as you mentioned, there can not be false positives
[11:13:00] <inz> All should be good 'till the ~3B where the rest of the program fails anyway
[11:13:57] <FatPhil> I suspect we'll never reach that far.
[11:14:13] <inz> Yeah, the O(n²) is biting hard already
[11:14:44] <boru> Out of interest, what primitive arithmetic operations do you need? If you don't need division, implementing fast multiprecision integer addition, subtraction and multiplication is fairly simple. With or without modular arithmetic.
[11:14:47] <FatPhil> by that time, we might have a new algorithms completely rather than this brute force one.
[11:15:03] <FatPhil> simultanious quadratic dipohantine equations are not my speciality.
[11:16:09] <inz> It does seem that there are no false negatives in any near future either; tried with __uint128_t, and it just keeps churning along
[11:16:14] <FatPhil> it looks like the sci.math newsgroup contains about 99% loons now, I was thinking of asking there.
[11:16:39] <FatPhil> archie pu still going strong
[11:17:35] <inz> boru, the latest versions only use those +-* (plus some bitwise operations)
[11:18:33] <boru> Right, I was alluding to fast multiprecision integer arithmetic if that comprised some of your bottleneck.
[11:18:59] <boru> Going beyond 512b integers.
[11:19:11] <boru> I think glibc has native types up to that.
[11:19:19] <boru> Well, implementation native, not machine native.
[11:20:15] <FatPhil> O(n^2) is the tarpit, we'll never get past 32-bits
[11:22:31] <FatPhil> However, I've found the email address of someone I used to discuss number theory with 15 years ago - maybe he can help...
[11:34:25] <inz> FatPhil, my tree now runs test in ~2.23s
[11:38:25] <inz> The sqrt() works for at least all x² where x < 2³⁷
[11:40:03] <inz> (I suppose it would run faster if it had a full core, not just a "thread", but these numbers are comparable)
[11:57:50] <Bender> [SoylentNews] - Happy New Year, the PinePhone [and PinePhone Pro] Keyboard and Cases are Here! - https://sylnt.us - why-else-do-they-call-them-KEYboards?
[12:22:31] <FatPhil> wowzers, ddrescue has mostly coped!
[12:26:34] <inz> yay
[12:28:31] <FatPhil> some of the final report is confusing, it's saying ipos and opos only half the size of the drive, but the total amount copied seems to be the full size.
[12:29:22] <FatPhil> I do have an identical SD card I can restore it too, but that card contains the old backup of the broken card, so I'll make a backup of the backup before overwriting it.
[12:30:08] <FatPhil> I decided to not go to the sauna shop today, I'll wait and see how this "restore" operation works before deciding how urgently I need a new RasPi.
[12:30:57] <FatPhil> is there a way of working out what files were affected by the card failure?
[12:31:02] <inz> if you don't have massive amounts of data, you can use the server for backup too, its also having a lot of unused disk
[12:31:29] <inz> (caveat: the server itself is not backed up, so don't trust it ultimately)
[12:31:35] <FatPhil> I try to back up home machines in the office, and office machines at home.
[12:31:47] <FatPhil> This has been a useful warning that we've not done that recently enough.
[12:31:47] <inz> sounds smart
[12:32:01] <FatPhil> it's only smart if you actually do it!
[12:32:08] <inz> true
[12:32:32] <inz> I gpg-encrypt some of my data onto google drive, but only a small portion
[12:32:53] <FatPhil> oh, gawd, the backup card's got mmore errors than the actual card!
[12:33:07] <inz> xD
[12:35:43] <FatPhil> the commoditisation of tech, and the fashion-driven push to change everything yearly, has made component quality so poor nowadays.
[12:38:26] <FatPhil> I've seen a vid from ~2009 of the phone I have, the n900, in a nokia h/w testing lab where it's in a little room with two movable floors - the left lifts up 1m, and then jetisons the phone onto the right side. left drops, right raises, and jetisons the phone off to the left side. Repeat. Repeat 10000 times. And it still has to work afterwards. Can you imagine any phone from today passing that?
[13:04:57] <inz> but would the test rig survive nokia 3310?
[13:06:51] <FatPhil> you're a sadist for even thinking about such things
[13:07:04] <FatPhil> some people just want to watch the world crumble.
[13:15:50] <FatPhil> OK, RasPi back up and running on the backup card.
[13:16:07] <FatPhil> inz++ thanks for the ddrescue hint - I'd not used that before
[13:16:08] <Bender> karma - inz: 13
[13:18:50] <FatPhil> One Million Brits Sign Petition To Rescind Tony Blair's Knighthood
[13:19:25] <FatPhil> sign a petition? I want to stab the fucker in the eye with a pen
[14:02:28] <Bytram> UPS++ janrinok I have a 1325 VA sine wave UPS. All my systems are mounted on a desk that is, in turn, mounted on big casters. I can unplug from the wall and roll it anywhere with everything still running! Gives me great peace-of-mind! No worries! =)
[14:02:28] <Bender> karma - ups: 6
[14:03:20] * Bytram skips ahead to current time
[14:18:37] <janrinok> yes, but a bit overkill for a raspberry pi. I would rather buy half a dozen spare Pi's and save myself a lot of money.
[14:22:06] <FatPhil> when my UPS blew up, it took my DEC Alpha with it. I've not had a UPS since. More trouble than they're worth
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[14:37:53] <Bytram> hi! cybiko123 ... good morning
[14:38:43] <cybiko123> Morning!
[14:39:17] <Bytram> hny!
[14:39:39] <cybiko123> You too!
[14:39:49] <janrinok> good afternoon cybiko123
[14:40:16] * cybiko123 waves at janrinok
[14:43:36] <Bytram> no waves here... it's about 20 F (-8 C). Brrrr!
[14:44:02] <janrinok> I would wave back but am typing on another keyboard, honest... (/me thinks he might have fallen for that...)
[14:45:56] <cybiko123> And I thought 34 was bad enough
[14:47:02] <janrinok> it's too warm and wet here - the weeds are growing like mad when they should all be dormant for the winter.
[14:47:09] <Bender> [SoylentNews] - ROCK5 Model B RK3588 Single Board Computer is Up for Pre-Order for $79 and Up - https://sylnt.us
[14:47:34] <cybiko123> Happy to trade with you, jan :P
[14:48:07] <janrinok> as long as you cut my grass and do the weeding in the rain.
[14:48:32] * cybiko123 hides
[15:00:58] <FatPhil> #weather
[15:00:59] <MrPlow> Voorimehe, 10146 Tallinn, Estonia - Today: "Overcast throughout the day." 22/7F, Humidity: 77%, Precip: 21%, Wind ~8mph. Tue: "Mostly cloudy throughout the day." 12/9F, Humidity: 72%, Precip: 0%, Wind ~6mph. Wed: "Overcast throughout the day." 33/32F, Humidity: 77%, Precip: 28%, Wind ~13mph.
[15:38:04] <FatPhil> Woooooh - the g/f's just found an absolutely bizarre anagram:
[15:38:10] <FatPhil> New Labour = Lowenbrau
[15:48:29] <boru> Not a great brewery, imo.
[15:48:36] <boru> The city has better ones.
[15:49:06] <boru> e.g. Hofbräu or Augustiner.
[15:49:16] <boru> The former for Weiß, the latter for Helles.
[16:33:07] <FatPhil> https://www.zerohedge.com
[16:33:08] <systemd> ^ 03"Influencer" Who Made $200K Selling Farts Retires After Heart Attack "Scare" Caused By Eating Too Many Eggs
[16:35:13] <boru> I hope someone can dump the customer databases for these people. I truly wonder who has this sort of money to spend on this sort of thing. They must be loaded.
[16:35:43] <FatPhil> full wallet, empty cranium
[16:36:52] <boru> I presume some of them are high profile people, with that sort of cabbage.
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[17:04:41] <t3> =submit https://www.bleepingcomputer.com
[17:04:43] <systemd> ✓ Sub-ccess! "03Dev Corrupts NPM Libs 'Colors' and 'Faker' Breaking Thousands of Apps" (44p) -> https://soylentnews.org
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[17:35:44] <Bender> [SoylentNews] - A Silicon Photonic-Electronic Neural Network That Could Enhance Submarine Transmission Systems - https://sylnt.us - can-you-hear-me-now?
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[18:12:21] <t3> =submit https://www.embedded.com
[18:12:24] <systemd> ✓ Sub-ccess! "03Address Digital Baseband to Unlock THz Communications for 6G - Embedded.com" (23p) -> https://soylentnews.org
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[20:27:13] <Bender> [SoylentNews] - Ford Dealers Can Ban F-150 Lightning Customers from Reselling Trucks to Discourage Scalpers - https://sylnt.us - catch-me-if-you-can
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[20:52:26] <FatPhil> inz: changing sqrtl to sqrt makes my 2.50s go to 1.40s!
[20:53:58] <FatPhil> and a little xor-rather-than-swap takes it to 1.34!
[20:55:06] <Bytram> FatPhil: how does it affect the accuracy?
[20:56:55] <FatPhil> the actual check is to re-square the (integer) root, and compare to the original, so it shouldn't matter, modulo rounding niggles.
[20:57:09] <FatPhil> however, it seems there are no rounding niggles
[21:08:11] <Bytram> FatPhil: Neat! Well done!
[21:08:23] <Bytram> FatPhil++
[21:08:23] <Bender> karma - fatphil: 164
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[21:37:13] <FatPhil> inz: looks like diophantus was solving way trickier problems back ~2000 years ago: https://dept.math.lsa.umich.edu page 8
[21:48:37] <FatPhil> having said that, his has a simpler pythagorean form which mine lacks.
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[23:17:24] <Bender> [SoylentNews] - Mass Production of Revolutionary Computer Memory Moves Closer With ULTRARAM™ on Silicon Wafers - https://sylnt.us - computers-without-Alzheimers-department
[23:23:14] <Runaway1956> Something good happened today, with the cell phone
[23:23:48] <Runaway1956> call over WIFI has never, ever worked here, for some weird reason - always some BS "we couldn't connect with your WIFI"
[23:24:01] <Runaway1956> Today, I really wanted to make a call, and tried it again,
[23:24:09] <Runaway1956> and it works for some unknown reason.
[23:24:53] <Runaway1956> I've made four cell phone calls today, sitting on my arse in front of my computer
[23:27:52] <Runaway1956> I guess that should have some context - internet all but quit on us this morning, I shut off modem and router for ~10 minutes
[23:28:06] <Runaway1956> when I started it all up again, Google Voice doesn't connect
[23:28:26] <Runaway1956> hours later, it still doing it's little whirly windows-like animation
[23:35:43] <chromas> your carrier and google voice take up the same spot in the series of tubes. there can be only one
[23:37:35] <Runaway1956> That may be it, but I didn't try the call over wifi thing until I was aleady frustrated with Google Voice