debug: config: attempting to read file /etc/pacman.conf
debug: config: new section 'options'
debug: config: HoldPkg: pacman
debug: config: HoldPkg: glibc
debug: config: SyncFirst: pacman
debug: config: architecture: x86_64
debug: config: IgnorePkg: opencv
debug: config: new section 'core'
debug: registering sync database 'core'
debug: adding new server URL to database 'core': ftp://mirror.archlinux.fi/archlinux/core/os/x86_64
debug: config: new section 'extra'
debug: registering sync database 'extra'
debug: adding new server URL to database 'extra': http://mirror.archlinux.fi/archlinux/extra/os/x86_64
debug: config: new section 'community'
debug: registering sync database 'community'
debug: adding new server URL to database 'community': http://mirror.archlinux.fi/archlinux/community/os/x86_64
debug: setlibpaths() called
debug: option 'cachedir' = /var/cache/pacman/pkg/
debug: config: finished parsing /etc/pacman.conf
debug: registering local database
:: Synchronising package databases...
debug: destfile found, using mtime only
debug: using 'core.db.tar.gz' for download progress
debug: HTTP_PROXY: (null)
debug: http_proxy: (null)
debug: FTP_PROXY:  (null)
debug: ftp_proxy:  (null)
error: segmentation fault
Internal pacman error: Segmentation fault.
Please submit a full bug report with --debug if appropriate.