The story reported on /r/sysadmin/. Also the /r/intel/ and /r/Amd/ are full of discussions about it.
I wonder how this will affect E.D. and FDev's servers.
I wonder how this will affect E.D. and FDev's servers.
Hardware & Technical Intel Security BUG (vMem)
- Thread starter Runis
- Start date
Deleted member 110222
D
Hmm. I saw this last night. Not much we can do right now.
Probably won't affect clients much at all...it's a bug with kernel memory space, and the patch has a significant performance hit on anything that accesses the kernel heavily, but this is mostly just I/O heavy stuff, not games or most consumer apps.
Servers will probably see a performance hit, and major companies are going to see some downtime as they have to roll out emergency patches.
Looks not good, and the upcoming patches may lead to performance hits in the range from "not noticable" to "49%", but currently it's more or less speculation I guess. All benchmarks I saw are from Linux systems with the KPTI patch enabled, Microsoft (and Amazon) are apparently working on a patch, too. From what I get, it's mostly the IO performance that takes a hit, including databases (PostgreSQL ~17% apparently, but well, SELECT 1...), but let's see how this turns out in real life.
https://www.phoronix.com/scan.php?page=article&item=linux-415-x86pti&num=2
The good news seems to be gaming performance is not affected, according to Phoronix' benchmarks at least:
https://www.phoronix.com/scan.php?page=news_item&px=x86-PTI-Initial-Gaming-Tests
FWIW, for German readers, this article seems to be one of the more reasonable ones:
https://www.computerbase.de/2018-01/intel-cpu-pti-sicherheitsluecke/
Apparently, more details will be disclosed tomorrow.
O7,
[noob]
https://www.phoronix.com/scan.php?page=article&item=linux-415-x86pti&num=2
The good news seems to be gaming performance is not affected, according to Phoronix' benchmarks at least:
https://www.phoronix.com/scan.php?page=news_item&px=x86-PTI-Initial-Gaming-Tests
FWIW, for German readers, this article seems to be one of the more reasonable ones:
https://www.computerbase.de/2018-01/intel-cpu-pti-sicherheitsluecke/
Apparently, more details will be disclosed tomorrow.
O7,
[noob]
Deleted member 110222
D
I hope gaming gets off lightly. Only thing I use my PC for is gaming, writing, and Web browsing.
It seems that the share of Intel lost approximately 5 % today
I think that I'll go get my i486 DX4 100 at the attic
November 29, 2017, Brian Krzanich, the boss of Intel, resold the maximum stock option authorized by his contract
https://www.fool.com/investing/2017/12/19/intels-ceo-just-sold-a-lot-of-stock.aspx
https://www.fool.com/investing/2017/12/19/intels-ceo-just-sold-a-lot-of-stock.aspx
Deleted member 110222
D
November 29, 2017, Brian Krzanich, the boss of Intel, resold the maximum stock option authorized by his contract
https://www.fool.com/investing/2017/12/19/intels-ceo-just-sold-a-lot-of-stock.aspx
I know. Not encouraging...
November 29, 2017, Brian Krzanich, the boss of Intel, resold the maximum stock option authorized by his contract
https://www.fool.com/investing/2017/12/19/intels-ceo-just-sold-a-lot-of-stock.aspx
AMD stock is up 9% since yesterday.
AMD must laugh. The final blow with Ryzen 2 ?
Uh oh, Google disclosed further details about the processor bugs their Project Zero team found . The first one, "Meltdown" (KAISER | KPTI) only affects Intel CPUs and can be patched in the OS. The second one, "Spectre" affects a much wider range of proessors, including ARM and AMD, and obviously can't be fixed by a simple OS or microcode patch. Reminds me much of "Heartbleed" for hardware. Lets see how this turns out...
Details here:
https://meltdownattack.com/
https://googleprojectzero.blogspot.de/2018/01/reading-privileged-memory-with-side.html
EDIT: Just got a cumulative Windows 10 update (KB4056892) that apparently contains several Kernel security fixes. Seems to be their patch. Note the warning about non-MS antivirus software incompatibilites.
https://support.microsoft.com/en-us...garding-the-windows-security-updates-released
ED servers seem to be safe already:
https://aws.amazon.com/de/security/security-bulletins/AWS-2018-013/
O7,
[noob]
. The first one, "Meltdown" (KAISER | KPTI) only affects Intel CPUs and can be patched in the OS. The second one, "Spectre" affects a much wider range of proessors, including ARM and AMD, and obviously can't be fixed by a simple OS or microcode patch. Reminds me much of "Heartbleed" for hardware. Lets see how this turns out...Details here:
https://meltdownattack.com/
https://googleprojectzero.blogspot.de/2018/01/reading-privileged-memory-with-side.html
EDIT: Just got a cumulative Windows 10 update (KB4056892) that apparently contains several Kernel security fixes. Seems to be their patch. Note the warning about non-MS antivirus software incompatibilites.
https://support.microsoft.com/en-us...garding-the-windows-security-updates-released
ED servers seem to be safe already:
https://aws.amazon.com/de/security/security-bulletins/AWS-2018-013/
O7,
[noob]
Last edited:
On the other hand, the second, newer vulnerability is much less serious than the first one (there's no violation of boundary separation), and can be patched without a performance loss.
Intel will still likely use it to try and downplay Meltdown, claiming "it's not just us", but theirs looks to be more serious.
Intel will still likely use it to try and downplay Meltdown, claiming "it's not just us", but theirs looks to be more serious.