Forwarded from Phoronix News
Phoronix
Intel DOWNFALL: New Vulnerability Affecting AVX2/AVX-512 With Big Performance Implications
This Patch Tuesday brings a new and potentially painful processor speculative execution vulnerability... Downfall, or as Intel prefers to call it is GDS: Gather Data Sampling. GDS/Downfall affects the gather instruction with AVX2 and AVX-512 enabled processors. At least the latest-generation Intel CPUs are not affected but Tigerlake / Ice Lake back to Skylake is confirmed to be impacted. There is microcode mitigation available but it will be costly for AVX2/AVX-512 workloads with GATHER instructions in hot code-paths and thus widespread software exposure particularly for HPC and other compute-intensive workloads that have relied on AVX2/AVX-512 for better performance.
Intel DOWNFALL: New Vulnerability Affecting AVX2/AVX-512 With Big Performance Implications
This Patch Tuesday brings a new and potentially painful processor speculative execution vulnerability... Downfall, or as Intel prefers to call it is GDS: Gather Data Sampling. GDS/Downfall affects the gather instruction with AVX2 and AVX-512 enabled processors. At least the latest-generation Intel CPUs are not affected but Tigerlake / Ice Lake back to Skylake is confirmed to be impacted. There is microcode mitigation available but it will be costly for AVX2/AVX-512 workloads with GATHER instructions in hot code-paths and thus widespread software exposure particularly for HPC and other compute-intensive workloads that have relied on AVX2/AVX-512 for better performance.
Phoronix
Intel DOWNFALL: New Vulnerability Affecting AVX2/AVX-512 With Big Performance Implications
This Patch Tuesday brings a new and potentially painful processor speculative execution vulnerability...
Forwarded from VNKC Public Channel
https://twitter.com/cutlass_charcot/status/1665318728282636290
cutlass@C102日曜日 西"あ"23b : 雨の日の出会い
リプ全返信キャンペーン中です、お気軽にどうぞ
cutlass@C102日曜日 西"あ"23b : 雨の日の出会い
リプ全返信キャンペーン中です、お気軽にどうぞ
喵喵小喵喵
https://comsec.ethz.ch/research/microarch/inception/
Telegram
Phoronix News
Phoronix
Linux Lands Fix For AMD Zen 1 Bug That Could Leak Data After A Division By Zero
After a rather busy Patch Tuesday with the AMD Inception vulnerability and Intel Downfall going public, the Linux kernel saw a new bug fix merged today for a different…
Linux Lands Fix For AMD Zen 1 Bug That Could Leak Data After A Division By Zero
After a rather busy Patch Tuesday with the AMD Inception vulnerability and Intel Downfall going public, the Linux kernel saw a new bug fix merged today for a different…
Forwarded from 🍊 (🍊)
"...The system locks up and the owner of the system starts to seriously consider a switch to some version of BSD."
https://lwn.net/Articles/627419/
https://lwn.net/Articles/627419/
LWN.net
The 'too small to fail' memory-allocation rule
Kernel developers have long been told that, with few exceptions, attempts to allocate memory ca [...]
Forwarded from Solidot
Firefox 桌面扩展将扩大支持 Android 版本
2023-08-11 16:57 by 河流之女
Firefox 的 Android 版本目前只支持少数扩展，但未来几个月，Mozilla 将把更多扩展带到移动平台上，成为唯一一个支持开放扩展系统的主流 Android 浏览器。Mozilla 称它已经构建了在 Firefox for Android 上支持开放扩展系统的必要基础设施，包括支持多进程，意味着扩展可以运行在独立进程上。
https://blog.mozilla.org/addons/2023/08/10/prepare-your-firefox-desktop-extension-for-the-upcoming-android-release/
#Firefox
2023-08-11 16:57 by 河流之女
Firefox 的 Android 版本目前只支持少数扩展，但未来几个月，Mozilla 将把更多扩展带到移动平台上，成为唯一一个支持开放扩展系统的主流 Android 浏览器。Mozilla 称它已经构建了在 Firefox for Android 上支持开放扩展系统的必要基础设施，包括支持多进程，意味着扩展可以运行在独立进程上。
https://blog.mozilla.org/addons/2023/08/10/prepare-your-firefox-desktop-extension-for-the-upcoming-android-release/
#Firefox
👍4
Forwarded from Hacker News (yahnc_bot)
Asteroid ZTm0038 with a >3% impact probability https://newton.spacedys.com/neodys2/NEOScan/risk_page/ZTm0038/index_summary_ZTm0038.html
https://stackoverflow.com/questions/32002277/why-does-gcc-or-clang-not-optimise-reciprocal-to-1-instruction-when-using-fast-m
https://news.ycombinator.com/item?id=23891810
https://news.ycombinator.com/item?id=23891810
Stack Overflow
Why does GCC or Clang not optimise reciprocal to 1 instruction when using fast-math
Does anyone know why GCC/Clang will not optimist function test1 in the below code sample to simply use just the RCPPS instruction when using the fast-math option? Is there another compiler flag that
Forwarded from Hacker News
Firefox finally outperforming Google Chrome in SunSpider (🔥 Score: 150+ in 1 hour)
Link: https://readhacker.news/s/5MteN
Comments: https://readhacker.news/c/5MteN
Link: https://readhacker.news/s/5MteN
Comments: https://readhacker.news/c/5MteN
Phoronix
Firefox Finally Outperforming Google Chrome In SunSpider
Mozilla developers are celebrating that they are now faster than Google Chrome with the SunSpider JavaScript benchmark, although that test has been superseded by the JetStream benchmark.