Download/criu
Jump to navigation
Jump to search
v. 1.1-rc1
Tarball: | criu-1.1-rc1.tar.bz2 |
Version: | 1.1-rc1 |
Released: | 30 Dec 2013 |
GIT tag: | v1.1-rc1 |
New features
- libcriu.so -- wrapper library for RPC clients
- Plugins
- External unix sockets
- External bind mounts
- External net devices
- Unknown file types
- Images deduplication in incremental dumps
- Integration with systemd
- Filtering of
criu show
output
Note: The API defined in the first two items above may change after -rc1 |
Fixes
- Errors in unlinked files/sockets detection on BTRFS
- NFS silly-rename files are not treated as unlinked
- Freezer fail to seize quickly forking/pthread_create-ing tasks
- Extra stop signal queued for stopped tasks after pre-dump
- Wrong dying task state detection
- Lost RPC dump response
- Crash when reporting restore error via RPC
- Negative return code into shell
- Tasks left in wrong states after failed dump
- A little bit more verbose check action
- Coverity checks fail here and there
v. 1.0
Tarball: | criu-1.0.tar.bz2 |
Version: | 1.0 |
Released: | 25 Nov 2013 |
GIT tag: | v1.0 |
Fixes
- After --leave-running linked remaps were not cleaned
- TCP was left locked after --leave-running
- Weak criteria in memory COW detection
- Private mapping's premmapped address overwrote file ID
- Restorer memory could overlap with timers/signals arrays
- RPC worker reused options from service task
- Suboptimal memory utilization by restorer arguments
- TCP unsent/unacked data boundary was lost
- Wrong dev_t decoding on 64 bit
- Unpredictable daemons (service and page-service) working dir
- Parasite stack could be corrupted by its arguments
- Error from exe link restore was ignored
- Artificial small limit on the number of shared memory segments to restore
- Bug in ARM VFP restore
- VDSO proxy was unmapped at the very end of restore
New features
- -W option to specify working dir
- CHECK request in RPC
- Optimized headers
- More info in logs about undumpable files
- More comments about tricky dump/restore places
- Generic memory allocation for restorer
v. 0.8
Tarball: | criu-0.8.tar.bz2 |
Version: | 0.8 |
Released: | 18 Oct 2013 |
GIT tag: | v0.8 |
New features
- RPC service
- Ability to work from non-root user (via +s bit)
- Handle stopped tasks
- Restore tasks' root path
- Dump and restore net ns iptables configuration (w/o conntracks)
- Support for external net devices in netns (e.g. openvz venet)
- Support CORK and NODELAY TCP options
- SEQPACKET unix sockets support
Fixes and improvements
- Unload restorer blob after restore
- Fixes and enhancements in
criu show
- Fix in unsorted inotify wd restoring
- Fixed trimmed messages in parasite transport
- Fine-grained pgrps restore
- Fix in large TCP buffers restore
- Fixed buffer overflow in IPC ns dumping
- Fix in early page server connection close on pre-dump
- Fixed race in handling aborted parasite blob
- Fixed lost unmapped criu vmas in restore
- Fixes in parsing devices in /proc/pid/maps and /proc/locks
- Fixed snd/rcv buf sockoptions restore
- Enhanced logging in parasite
v. 0.7
Tarball: | criu-0.7.tar.bz2 |
Version: | 0.7 |
Released: | 3 Sep 2013 |
GIT tag: | v0.7 |
New features
- TUN devices support (requires patched kernel)
- Alternative stack (sigaltstack) C/R
- Shared and master/slave mounts support
- Restore statistics
- Net device address C/R
- Safer and simpler asynchronous parasite
- Fixes in
- Stack guard page dump/restore
- Page server communications
- COW mappings restore
- Zombies restore
- Aborting failed restore
- TCP connection restore (some require patched kernel)
- Semi-closed Unix sockets with data dump/restore
- etc.
v. 0.6
Tarball: | criu-0.6.tar.bz2 |
Version: | 0.6 |
Released: | 1 Jul 2013 |
GIT tag: | v0.6 |
New features
- Cross-compiling support
- Ready to accept images from OpenVZ RHEL6-based kernel
- VDSO conversion
- Posix CPU timers C/R
- Asynchronous parasite
- Self-heal dumpee in case of crtools crash
- Memory changes tracking (requires patched kernel)
- Incremental backups
- Pre-dump task command for smaller freeze time
- Dump statistics
- Return-arg for remote syscalls execution
- Improved "show" output
- Opened /proc/PID/ns/* files C/R
- Daemon mode for page-server
- Build-time features test (makes it possible to build on different distros)
v. 0.5
Tarball: | criu-0.5.tar.bz2 |
Version: | 0.5 |
Released: | 30 Apr 2013 |
GIT tag: | v0.5 |
New features
- C/R netlink sockets
- C/R pending signals
- New format for memory dumps
- Incremental dumps (preliminary)
- Ability to directly send memory dumps on remote host (for faster live migration)
- Images showing enhancements
- Kernel features checking enhancements
- Lots of BUGs fixed
- Renamed
crtools
tocriu
(both binary and source package names)
v. 0.4
crtools-0.4.tar.bz2
Released: 20 Feb 2013
GIT tag: v0.4
New features
- ARM port
- Remote syscall execution
- C/R of
- FPU state
- File locks (basic support)
- Rlimits
- FANotify descriptors
- Shared fdtable (table of file descriptors)
- Tasks' umask
- Pipe buffer size
- Unix sockets' credentials
- TCP time-stamp offset (allows to migrate a TCP socket, requires custom kernel)
- Automatic namespaces detection (
--namespace
option is deprecated)
Internal
- Build system rework
- Dumping/restoring memory pointers standardized (while doing ARM port)
- Ability to collect coverage (gcov, reported here)
- 32/64-bit problems mostly resolved (while doing ARM port)
v. 0.3
crtools-0.3.tar.bz2
Released: 11 Dec 2012
GIT tag: v0.3
New features
- C/R of shell jobs
- Handle files, that are opened and unlinked, but some other hard link exists
- More SOL_SOCKET socket options. Two most interesting are:
- Binding socket to device (
SO_BINDTODEVICE
) - Per-socket packet filter (
SO_ATTACH_FILTER
)
- Binding socket to device (
- Shutdown state of a socket
- Task scheduler parameters (nice, policy and prio)
- Properly handle COW pages
- Memory mapped packet sockets (with SOL- options this is enough for tcpdump tool support)
- Complementary groups (
getgroups(2)
) - Various mapping features, configured with
madvise(2)
- Tune TCP sockets support to work with IPv6 sockets
- Closed (or not yet connected/bound) unix sockets
Bug fixes and improvements
- Print timestamps in log files
- Restructure source tree a little
- PIE stuff in separate dir
- Arch-specific code in arch/<Arch>/ directory
- Nicer
show -c
output for pages/pipes/etc contents - Fixes in help text
- Save and restore blocked signals mask for threads
- Don't dump (and warn about it) corked UDP sockets
- Fixed livelocks when restoring too big socket queues
- Refresh info about sockets, that might have changed between diag dump and actual process freeze
- Lost file params and socket options for some unix sockets
- Fix inotify on opened and unlinked files
- Fix shared anonymous memory detection
- Properly close all files before restoring them
- Fixes in running external tools (ip/tar)
- Several fixes in control tty restoring code
- RT signals handlers dumped and restored
v. 0.2
crtools-0.2.tar.bz2
Released: 20 Sep 2012
GIT tag: v0.2
v. 0.1
crtools-0.1.tar.bz2
Released: 23 Jul 2012
GIT tag: v0.1