I'm not really clear on how you ban encryption. Do you lock up all the mathematicians?
License it (with taxes and fees of course) with conditions which require key escrow or other backdoor. When data streams are discovered which are not using a government approved method, prosecute those who are responsible.
Treat any constitutional right to use encryption the same way as speech and firearms which are often licensed. A $200 tax for certain firearms in 1934 is the equivalent of $3500 now and that was never struck down by the court.
TRIM is explicitly a non-queued command. Linux attempting to queue it is out of spec. It works most of the time, but it isn't fair to say lay all the blame for failures with the SSD manufacturers. They should reject queued TRIM commands if they don't work, but equally Linux should not be sending them.
From your link:
This Trim shortcoming has been overcome in Serial ATA revision 3.1 with the introduction of the Queued Trim Command.
If the drives were not reporting support for this command which they do not support, then there would not be a problem.
Just like ZFS and similar file systems have more problems with hardware. Or was it that they detect data corruption which happens on Windows without detection or warning?
Another thing that got me is why people are say quick to say "he should go back and face the music" and "he's paranoid with crazy view of the world" like its nothing.
The first time I saw a PC with a 1GB hard drive, we stared at it in awe... it was about 98% free space, and nobody had any idea of what you'd put on it.
I remember thinking the same thing about the first 5MB hard drive I encountered in an IBM PC.
When data CDs first came out there were questions about what kind of game could fill one up. That was answered in short order because the second game to be released on CD media, one of the early Kings Quest games, took 2 CDs leading to the "King's Quest XXXXVIII - Quest for Disk Space" joke.
Crookes radiometer actually requires a partial vacuum and operates best at about 10 millionths of an atmosphere. Space has a vacuum which is at least 10 million times better than that at which point only photon pressure would apply and while detectable, that would not be enough.
Only thing that's really worrying here is the fact that hard disks have a bad tendency to behave bad when they get older - lubrication issues. And I'm not sure that SSDs fares a lot better.
I think this problem with hard drives only occurs for models which land the head on the platters without using a textured landing zone. I have not had problems restarting old hard drives as small as several GBytes.
SSDs have short unpowered retention times (months); leaving them powered up but unconnected might be a way around this.
If you just run the device occasionally, electrolytic caps can easily last for decades in storage. Even if you don't, they can usually be "reconditioned" by using an autotransformer to slowly ramp up the voltage unless they are so far gone that they are shorted. Power up interval is about once a year and let it run for an hour or two.
I have only run across the electrolytic capacitor problem with high voltage capacitors like you would find in tube equipment.
An autotransformer will work with a linear power supply but most switching power supplies will behave badly and possibly self destruct if operated below their minimum input voltage because of their negative input resistance.
And, of course, US counter-intelligence data is available through OPM. Right...
If they assumed that something would leak showing that a major government information system had been compromised, then they might try to cover it up by announcing (and allowing?) a different significant leak. The same strategy could work by blaming Snowden's disclosures except then it is a win-win; they cover up the real leak and discredit Snowden.
The reason we can't (easily) solve this is really simple. There isn't enough water. If southern California wants to look afar for water they have to look at the Columbia River, which is the nearest river that seems to have abundant water. Believe me, Oregon will put up a big fight if SoCal tries to ram through the kind of infrastructure to move water through Oregon.
It was before my time but I have family in both California and Oregon and the way I understand it from them, California proposed this decades ago (1960s?) and one of the reasons Oregon turned it down was that they concluded that the California politicians and by extension the federal government could not be trusted to stay within the bounds of any agreement so it is better to prevent any such project starting than to fight it later when they altered the deal.
To be more correct, the 68000 certainly could support multitasking, both cooperative and preemptive -- it just could not fully support instruction restart after certain types of exceptions ( and this could not support virtual memory ala UNIX).
I was puzzled by TechyImmigrant's comment and found the same thing. The 68000 saved enough state to handle interrupts which is needed for preemptive multitasking but not bus fault exceptions which are needed to support virtual memory like with a 68451 MMU.
I am not aware of any CPUs which support interrupts that cannot support preemptive multitasking.
Why would you skew it like this in favor of solar? Because solar generation matches the peak demand so well. The peak demand is late afternoon in hot sunny states when everyone runs their A/C at full blast.
AMD Phenom II 940 8 GBytes ECC RAM Areca 1210 PCIe RAID Controller 4 x WD Black Hard Drives PCI Serial and Parallel Interface Card Intel PCI Dual Port Ethernet Adapter
The extra network card is because I use the faster Ethernet port for a separate fast internal network. The serial and parallel interface card is for working with embedded hardware.
At the time I built the system, an Intel system which supported ECC would have been at least $1200 more for the Xeon CPU, server motherboard, and very expensive fully buffered RAM. The difference more than paid for the hardware RAID controller (which also has ECC RAM in this case) and drives. Today the premium for an Intel system still doubles the cost of the CPU and motherboard.
That makes it an exercise in futility, easily defeated by hacking the system to substitute some other second key (which could be random gibberish, since it's not actually used, just put in to defeat the backdoor).
That was essentially the flaw in the Clipper Chip which used key escrow in the form of a law enforcement access field (LEAF). The hash protecting the LEAF was only 16 bits allowing a easy brute force attack which could forge a new valid looking LEAF.
Similarly, a CME (coronal mass ejection) which generates all those pretty Northern (and Southern) lights are charged particles, and moving charged particles induce magnetic fields. Those magnetic fields interact with Earth's magnetic field which causes currents to be induced in long distance power lines. it's what took out Quebec in the 1980s - those induced currents caused safety breakers to trip and bring the system offline.
The damage in this case is caused by the low frequency induced current in long power transmission lines. The low frequency current saturates the transformer cores and the resulting increase in magnetizing current do to the lower inductance causes heating which results in catastrophic failure.
These transformers are difficult to replace because they are custom made with long lead times and the largest have to be imported.
Linear Technology had ads in ED and EDN when they released their low voltage boost converters which could start at 1.2 volts and operate down to 0.65 volts. Their advertising phrase was "how to suck a battery dry" with a picture of the battery rolled up like a toothpaste tube.
I am dubious about the added weight as well but the turbine engines would not require a stored oxidizer saving some weight. I assume their fuel would be stored in the small wings.
I had IPv6 access for years via native IPv6 tunneling over IPv4 (protocol 41) and it worked great however a couple years ago AT&T decided to block protocol 41 from leaving (or entering?) their network cutting off external tunnel endpoints. Then I used the multicast protocol 41 endpoint until they blocked that also. At this point they block at least incoming protocol 41 in all cases so I am left with three options: drop AT&T which is now the only DSL provider in my area, tunnel IPv6 within some other protocol like UDP, or live without IPv6. At this point I think the best option is to setup an encrypted VPN for the tunnel carrying IPv6.
AT&T's customer support give various reasons for blocking IPv6 including "otherwise our users could get a static IP address without paying us" and "security".
The act itself is a joke, and egregious violation of the Second Amendment, since it's almost impossible to pass through any urban or suburban area without passing within 1000 feet of some school's property and makes transporting arms - letting alone bearing them - illegal for any unlicensed person.
The act also makes carrying a firearm in states where it is legal to do so *without* a permit (constitutional carry) unlawful and it has the same effect if you are licensed in a different state which the current state recognizes so all of those out of state permits are useless in the event that you are charged with this felony.
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License it (with taxes and fees of course) with conditions which require key escrow or other backdoor. When data streams are discovered which are not using a government approved method, prosecute those who are responsible.
Treat any constitutional right to use encryption the same way as speech and firearms which are often licensed. A $200 tax for certain firearms in 1934 is the equivalent of $3500 now and that was never struck down by the court.
From your link:
This Trim shortcoming has been overcome in Serial ATA revision 3.1 with the introduction of the Queued Trim Command.
If the drives were not reporting support for this command which they do not support, then there would not be a problem.
Just like ZFS and similar file systems have more problems with hardware. Or was it that they detect data corruption which happens on Windows without detection or warning?
He was not paranoid enough.
I remember thinking the same thing about the first 5MB hard drive I encountered in an IBM PC.
When data CDs first came out there were questions about what kind of game could fill one up. That was answered in short order because the second game to be released on CD media, one of the early Kings Quest games, took 2 CDs leading to the "King's Quest XXXXVIII - Quest for Disk Space" joke.
And there is the modernized version:
https://what-if.xkcd.com/31/
Crookes radiometer actually requires a partial vacuum and operates best at about 10 millionths of an atmosphere. Space has a vacuum which is at least 10 million times better than that at which point only photon pressure would apply and while detectable, that would not be enough.
I think this problem with hard drives only occurs for models which land the head on the platters without using a textured landing zone. I have not had problems restarting old hard drives as small as several GBytes.
SSDs have short unpowered retention times (months); leaving them powered up but unconnected might be a way around this.
I have only run across the electrolytic capacitor problem with high voltage capacitors like you would find in tube equipment.
An autotransformer will work with a linear power supply but most switching power supplies will behave badly and possibly self destruct if operated below their minimum input voltage because of their negative input resistance.
A neon sign transformer works well for this type of diagnostic procedure. I also have a 0 to 5000 volt 1.5 amp DC power supply.
If they assumed that something would leak showing that a major government information system had been compromised, then they might try to cover it up by announcing (and allowing?) a different significant leak. The same strategy could work by blaming Snowden's disclosures except then it is a win-win; they cover up the real leak and discredit Snowden.
It was before my time but I have family in both California and Oregon and the way I understand it from them, California proposed this decades ago (1960s?) and one of the reasons Oregon turned it down was that they concluded that the California politicians and by extension the federal government could not be trusted to stay within the bounds of any agreement so it is better to prevent any such project starting than to fight it later when they altered the deal.
I was puzzled by TechyImmigrant's comment and found the same thing. The 68000 saved enough state to handle interrupts which is needed for preemptive multitasking but not bus fault exceptions which are needed to support virtual memory like with a 68451 MMU.
I am not aware of any CPUs which support interrupts that cannot support preemptive multitasking.
http://instituteforenergyresea...
The important bits are:
AMD Phenom II 940
8 GBytes ECC RAM
Areca 1210 PCIe RAID Controller
4 x WD Black Hard Drives
PCI Serial and Parallel Interface Card
Intel PCI Dual Port Ethernet Adapter
The extra network card is because I use the faster Ethernet port for a separate fast internal network. The serial and parallel interface card is for working with embedded hardware.
At the time I built the system, an Intel system which supported ECC would have been at least $1200 more for the Xeon CPU, server motherboard, and very expensive fully buffered RAM. The difference more than paid for the hardware RAID controller (which also has ECC RAM in this case) and drives. Today the premium for an Intel system still doubles the cost of the CPU and motherboard.
That was essentially the flaw in the Clipper Chip which used key escrow in the form of a law enforcement access field (LEAF). The hash protecting the LEAF was only 16 bits allowing a easy brute force attack which could forge a new valid looking LEAF.
http://en.wikipedia.org/wiki/C...
Use a strong cryptographic hash so the LEAF cannot be forged.
What difference would it make if members of Congress knew a lot about health care insurance? They had to pass the law before seeing it.
The damage in this case is caused by the low frequency induced current in long power transmission lines. The low frequency current saturates the transformer cores and the resulting increase in magnetizing current do to the lower inductance causes heating which results in catastrophic failure.
These transformers are difficult to replace because they are custom made with long lead times and the largest have to be imported.
I do also. It has been running my FreeBSD router for a decade now.
Linear Technology had ads in ED and EDN when they released their low voltage boost converters which could start at 1.2 volts and operate down to 0.65 volts. Their advertising phrase was "how to suck a battery dry" with a picture of the battery rolled up like a toothpaste tube.
This is true for lithium and lead-acid cells but NiCd and NiHM cells tolerate discharge to 0 volts just fine.
I am dubious about the added weight as well but the turbine engines would not require a stored oxidizer saving some weight. I assume their fuel would be stored in the small wings.
I had IPv6 access for years via native IPv6 tunneling over IPv4 (protocol 41) and it worked great however a couple years ago AT&T decided to block protocol 41 from leaving (or entering?) their network cutting off external tunnel endpoints. Then I used the multicast protocol 41 endpoint until they blocked that also. At this point they block at least incoming protocol 41 in all cases so I am left with three options: drop AT&T which is now the only DSL provider in my area, tunnel IPv6 within some other protocol like UDP, or live without IPv6. At this point I think the best option is to setup an encrypted VPN for the tunnel carrying IPv6.
AT&T's customer support give various reasons for blocking IPv6 including "otherwise our users could get a static IP address without paying us" and "security".
The act also makes carrying a firearm in states where it is legal to do so *without* a permit (constitutional carry) unlawful and it has the same effect if you are licensed in a different state which the current state recognizes so all of those out of state permits are useless in the event that you are charged with this felony.
That has not stopped the courts from upholding them and this law in particular; in this case because it affects interstate commerce.