Difference between revisions of "Download/criu/1.2"

Latest revision as of 21:03, 25 February 2014

Performance improvements
- Shared entries in reg-files image
- Less accesses to /proc/$pid/map_files links
- Cache for /proc/$pid/pagemap reads
- VDSO page is seeked only in anonymous mappings
- Task's auxv is read in one call
- Merged mm and vma image files for better packing
- NFS inodes' path resolution (for fsnotify) cache
- One readlink() call when checking anon inodes
- Don't dump kernel's zero-page
- Parse fast /proc/self/maps when searching for hole for restorer
- A bit faster write into image files with writev()
Library versioning
RPC API got closer to CLI
- Suitable for live migration project
- Action-scripts via RPC notification messages
New "post-restore" call in action scripts
Logrotate rules file
Default log file for service when starting via systemd

A lot for ARM cross-compile
Fsnotifies dumping didn't work on NFS
Images auto-deduplication only worked one level up
Packet socket ID was treated as file-descriptor and close()-d
Badly counted pages stats on restore
Linked remap name conflict when dump and restore on NFS
Sporadic failures in memory draining due to huge pipes used
Broken criu show of repeated fields
Failure to open mountpoint in foreign pid namespace
Unlinked bound unix socket dump error
Small memory leak when writing to incremental image(s)
Restoring fsnotify for links results in ELOOP
Host's PATH is not suitable when execv-ing tar/ip/iptable to restore namespace (workaround, proper fix will be in 1.3)
Using subdirs in log file name via RPC breaks security

@@ Line 4: / Line 4: @@
 * Performance improvements
 ** Shared entries in reg-files image
-** Less accesses to /proc/$pid/map_files links
+** Less accesses to <code>/proc/$pid/map_files</code> links
-** Cache for /proc/$pid/pagemap reads
+** Cache for <code>/proc/$pid/pagemap</code> reads
 ** VDSO page is seeked only in anonymous mappings
 ** Task's auxv is read in one call
 ** Merged mm and vma image files for better packing
-** NFS inodes' path resulution (for fsnotify) cache
+** NFS inodes' path resolution (for fsnotify) cache
-** One readlink() call when checking anon inodes
+** One <code>readlink()</code> call when checking anon inodes
 ** Don't dump kernel's zero-page
-** Parse fast /proc/self/maps when searching for hole for restorer
+** Parse fast <code>/proc/self/maps</code> when searching for hole for restorer
 ** A bit faster write into image files with <code>writev()</code>
 * Library versioning
@@ Line 24: / Line 24: @@
 === Fixes ===
 * A lot for ARM cross-compile
-* Inotify/FAnotify dumping didn't work on NFS
+* Fsnotifies dumping didn't work on NFS
-* Images auto-reduplication only worked one level up
+* Images auto-deduplication only worked one level up
 * Packet socket ID was treated as file-descriptor and close()-d
 * Badly counted pages stats on restore