Linux 5.8-rc3 Released - Fairly Big But Not Particularly Scary

[phoronix]

Phoronix: Linux 5.8-rc3 Released - Fairly Big But Not Particularly Scary

Linus Torvalds just pushed out Linux 5.8-rc3 as the newest weekly test candidate for the upcoming Linux 5.8 that should debut as stable around early August...

http://www.phoronix.com/scan.php?page=news_item&px=Linux-5.8-rc3-Released

[Jeff]

Strange enough, for me Google Chrome is now crashing with rc3 (some segfault in dmesg.). It is fine with rc2 but not with rc3 with same config. Firefox is fine and everything else seems to be ok as well. I'll revert back to rc2 for now until I figure out what is going on.

[elatllat]

An OS not written in a memory safe language is scary.

[Volta]

An OS not written in a memory safe language is scary.

Not more scary than stupidity of some. Show me such OS.

[Michael]

Strange enough, for me Google Chrome is now crashing with rc3 (some segfault in dmesg.). It is fine with rc2 but not with rc3 with same config. Firefox is fine and everything else seems to be ok as well. I'll revert back to rc2 for now until I figure out what is going on.

Can confirm same behavior on recent Git state in past few days as well.

[KaoDome]

An OS not written in a memory safe language is scary.

There are a couple of OSes written in Ada which can be sort of memory-safe, but they're real-time operating systems; most of the ones I know (general purpose) are written in C, C++ and the like (even assembly, plenty of it in kernel code), mostly because low-level access has the potential for greater performance.

I wouldn't be surprised if heavier languages were used in the future though, more powerful machines have the benefit of running heavier things and still be acceptably performant; we've seen it in userspace already so maybe it's just a matter of time.

[Aryma]

how about FSGSBASE ?

[Michael]

how about FSGSBASE ?

As outlined a few times recently, FSGSBASE isn't landing until Linux 5.9.

https://www.phoronix.com/scan.php?page=search&q=FSGSBASE

[kcrudup]

Strange enough, for me Google Chrome is now crashing with rc3 (some segfault in dmesg.). It is fine with rc2 but not with rc3 with same config. Firefox is fine and everything else seems to be ok as well. I'll revert back to rc2 for now until I figure out what is going on.

I've found and reported it already. Revert this commit:

commit e9c15badbb7b20ccdbadf5da14e0a68fbad51015
Author: Mel Gorman <[email protected]>
Date: Mon Jun 15 13:13:58 2020 +0100

fs: Do not check if there is a fsnotify watcher on pseudo inodes

[timrichardson]

An OS not written in a memory safe language is scary.

Not too scary to stop you posting about it.