SRU for Oneiric and Precise, and apply to Quantal too. == SRU Justification ==
== Impact == A regression was caused by commit: 821f749 eCryptfs: Revert to a writethrough cache model That patch reverted some code (specifically, 32001d6f) that was necessary to properly handle open() -> mmap() -> close() -> dirty pages -> munmap(), because the lower file could be closed before the dirty pages are written out. This revert unfortunately causes errors: ecryptfs_encrypt_page: Error attempting to write lower page == Fix == Apply commits 7149f2558d5b5b988726662fe58b1c388337805b and 64e6651dcc10e9d2cc6230208a8e6c2cfd19ae18. == Test Case == Can be tested on various file systems using the ecryptfs tests (from lp:ecryptfs). sudo mkdir /tmp/image /lower /upper sudo ./tests/run_tests.sh -K -c safe -b 1000000 -D /tmp/image \ -l /lower -u /upper -f ext2,ext3,ext4,xfs,btrfs -t mmap-close.sh Without the fix, this fails, with the fix it passes. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1047261 Title: ecryptfs_encrypt_page: Error attempting to write lower page (regression) To manage notifications about this bug go to: https://bugs.launchpad.net/ecryptfs/+bug/1047261/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
