lists.openwall.net   lists  /  announce  owl-users  owl-dev  john-users  john-dev  passwdqc-users  yescrypt  popa3d-users  /  oss-security  kernel-hardening  musl  sabotage  tlsify  passwords  /  crypt-dev  xvendor  /  Bugtraq  Full-Disclosure  linux-kernel  linux-netdev  linux-ext4  linux-hardening  PHC 
Open Source and information security mailing list archives
 
Hash Suite: Windows password security audit tool. GUI, reports in PDF.
[<prev] [next>] [<thread-prev] [day] [month] [year] [list]
Date:   Mon, 9 Aug 2021 22:34:37 +0300
From:   ValdikSS <iam@...dikss.org.ru>
To:     Theodore Ts'o <tytso@....edu>
Cc:     linux-ext4@...r.kernel.org
Subject: Re: ext4lazyinit reads HDD data on mount since 5.13

On 09.08.2021 21:26, Theodore Ts'o wrote:
> 
> It's not been tested, but it should be safe in terms that it shouldn't
> lead to any file system corruption or data loss.  However, it may
> result in non-optional block placement that might cause more file or
> free-space fragmentation that might otherwise be the case.  (This was
> true even before the latest optimizations, but it's more the case with
> the new optimizations.)
> 
> Can you say something about why you want to disable to block
> allocation prefetch?  How is it causing problems for you?

My old HDDs are now screeching their heads for 20 seconds after mount. 
That's secondary disks (internal and external drives) which are not 
fragmented, mostly idle and have plenty of free space. It's a bit 
annoying to hear the sounds and see strange load right after mounting, 
so I'd prefer old behavior.
Just aesthetics, not a technical issue per se.

Powered by blists - more mailing lists