[Digikam-devel] [digikam] [Bug 327073] New: Random freezes
alphazo at gmail.com
Sun Nov 3 10:30:22 GMT 2013
Bug ID: 327073
Summary: Random freezes
Platform: Archlinux Packages
Assignee: digikam-devel at kde.org
Reporter: alphazo at gmail.com
I just installed ArchLinux on a brand new Intel i7 4770S (Haswell). I have the
exact package versions on the new and old machines but when performing simple
operations such a renaming or moving files, DigiKam would just freeze.
In the meantime I also experienced severe issues on Kdenlive when simply
disabling an effect.
You can see my bug report on Kdenlive bug tracker here:
I then looked at the trace and found this stuff about lock elision that seems
very (hardware) specific to Haswell CPU. http://lwn.net/Articles/534758/
I looked at the ArchLinux PKGBUILD for the current pre-compiled glibc 2.18-9
and it has the "--enable-lock-elision" switch. I then recompiled glibc 2.18-9
but without support for enable-lock-elision and problem was gone.
I haven't had a chance to play with Digikam again but this might have fixed my
instabilities as well. Is there any lock elision related code in Digikam or is
the lock elision implementation in current glibc buggy when ran on Haswell
Steps to Reproduce:
- Moving a small number of files to a different album
- Renaming some files
Freeze. I have to to force close the application.
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