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Colin Walters 8642ef5ab3 lib/deploy: Use a FIFREEZE/FITHAW cycle for /boot 
See: http://marc.info/?l=linux-fsdevel&m=149520244919284&w=2

XFS doesn't flush the journal on `syncfs()`. GRUB doesn't know how to follow the
XFS journal, so if the filesystem is in a dirty state (possible with xfs
`/boot`, extremely likely with `/`, if the journaled data includes content for
`/boot`, the system may be unbootable if a system crash occurs.

Fix this by doing a `FIFREEZE`+`FITHAW` cycle.  Now, most people
probably would have replaced the `syncfs()` invocation with those two
ioctls.  But this would have become (I believe) the *only* place in
libostree where we weren't safe against interruption.  The failure
mode would be ugly; nothing else would be able to write to the filesystem
until manual intervention.

The real fix here I think is to land an atomic `FIFREEZETHAW` ioctl
in the kernel.  I might try a patch.

In the meantime though, let's jump through some hoops and set up
a "watchdog" child process that acts as a fallback unfreezer.

Closes: https://github.com/ostreedev/ostree/issues/876

Closes: #1049
Approved by: jlebon
2017-08-08 16:09:04 +00:00
..
coccinelle
Add Coccinelle usage: one for blacklisting, one for patch collection
2017-03-30 19:19:54 +00:00
gpg-verify-data
gpg: Regenerate test data for test-gpg-verify-result
2015-03-19 12:43:04 -04:00
gpghome
tests: Port to glib-tap.mk, make make check run all of the tests
2016-03-03 08:50:19 -05:00
installed
Add a notion of "physical" sysroot, use for remote writing
2017-07-18 18:58:06 +00:00
.gitignore
lib/repo-finder: Add Avahi based OstreeRepoFinder implementation
2017-06-26 15:56:07 +00:00
admin-test.sh
lib/deploy: Use a FIFREEZE/FITHAW cycle for /boot
2017-08-08 16:09:04 +00:00
archive-test.sh
repo+tests: Add [core]disable-xattrs=true, use it on overlayfs
2017-03-24 22:16:43 +00:00
basic-test.sh
lib/repo: Auto-recreate repo/tmp if it's deleted
2017-07-19 15:01:19 +00:00
bootloader-entries-crosscheck.py
Introducing ostree-grub-generator
2016-04-04 14:19:35 +00:00
coccinelle.sh
Add Coccinelle usage: one for blacklisting, one for patch collection
2017-03-30 19:19:54 +00:00
corrupt-repo-ref.js
Make corrupt-repo-ref.js executable
2017-01-19 13:54:59 +00:00
glib.supp
glib.supp: Suppress g_task -> thread leaks
2016-07-28 10:10:17 +00:00
grub2-entries-crosscheck.py
tests: Add a test script to cross-check loader config vs GRUB2
2015-05-28 14:21:30 -04:00
libostreetest.c
libglnx: bump and use new helper methods
2017-05-12 21:02:16 +00:00
libostreetest.h
tests/test-pull-c: New test that runs through the pull API via C
2016-06-07 15:58:37 +00:00
libtest-core.sh
tests/libtest-core.sh: Add a comment that this copy is canonical
2017-08-02 17:55:50 +00:00
libtest.sh
tests: Fix assert_files_hardlinked
2017-06-29 15:34:57 +00:00
ostree-grub-generator
Introducing ostree-grub-generator
2016-04-04 14:19:35 +00:00
ostree.supp
tests: Modernize valgrind infrastructure
2016-06-09 21:10:35 +00:00
pre-endian-deltas-repo-big.tar.xz
deltas: Heuristically detect endianness for older deltas
2016-02-26 08:19:01 -05:00
pre-endian-deltas-repo-little.tar.xz
deltas: Heuristically detect endianness for older deltas
2016-02-26 08:19:01 -05:00
pull-test.sh
bin/pull: Fix @ override syntax when pulling multiple refs
2017-08-07 16:10:08 +00:00
readdir-rand.c
tree-wide: Switch tabs ⭾ in various files over to spaces ␠
2017-05-11 18:17:26 +00:00
test-admin-deploy-2.sh
tests: Port to glib-tap.mk, make make check run all of the tests
2016-03-03 08:50:19 -05:00
test-admin-deploy-bootid-gc.sh
ostree-repo: Make the lock with a long-lasting FD
2016-11-22 02:32:33 +00:00
test-admin-deploy-clean.sh
tests: Port to glib-tap.mk, make make check run all of the tests
2016-03-03 08:50:19 -05:00
test-admin-deploy-etcmerge-cornercases.sh
tests: Port to glib-tap.mk, make make check run all of the tests
2016-03-03 08:50:19 -05:00
test-admin-deploy-grub2.sh
lib/deploy: Use a FIFREEZE/FITHAW cycle for /boot
2017-08-08 16:09:04 +00:00
test-admin-deploy-karg.sh
Filter bootloader supplied kernel cmdline options
2016-11-01 18:00:37 +00:00
test-admin-deploy-switch.sh
tests: Port to glib-tap.mk, make make check run all of the tests
2016-03-03 08:50:19 -05:00
test-admin-deploy-syslinux.sh
lib/deploy: Use a FIFREEZE/FITHAW cycle for /boot
2017-08-08 16:09:04 +00:00
test-admin-deploy-uboot.sh
lib/deploy: Use a FIFREEZE/FITHAW cycle for /boot
2017-08-08 16:09:04 +00:00
test-admin-instutil-set-kargs.sh
Filter bootloader supplied kernel cmdline options
2016-11-01 18:00:37 +00:00
test-admin-locking.sh
Probe for GNU parallel more accurately
2016-03-31 14:22:06 +00:00
test-admin-pull-deploy-commit.sh
tests: Port to glib-tap.mk, make make check run all of the tests
2016-03-03 08:50:19 -05:00
test-admin-pull-deploy-split.sh
upgrade: Add support for --pull-only and --deploy-only
2017-02-27 20:57:23 +00:00
test-admin-upgrade-endoflife.sh
Allow commits to mark refs as EOL, replaced by others
2017-05-22 20:18:07 +00:00
test-admin-upgrade-not-backwards.sh
tests: Port to glib-tap.mk, make make check run all of the tests
2016-03-03 08:50:19 -05:00
test-admin-upgrade-unconfigured.sh
tests: Port to glib-tap.mk, make make check run all of the tests
2016-03-03 08:50:19 -05:00
test-archivez.sh
repo+tests: Add [core]disable-xattrs=true, use it on overlayfs
2017-03-24 22:16:43 +00:00
test-auto-summary.sh
tests: Remove extra $CMD_PREFIX from test-auto-summary.sh
2016-06-27 20:20:21 +00:00
test-basic-c.c
lib/core: Add ostree_validate_remote_name() for remote names
2017-06-20 21:52:22 +00:00
test-basic-root.sh
checkout: Merge union/add logic for copies during checkout
2017-04-25 13:52:35 +00:00
test-basic-user-only.sh
lib/repo: Support hardlink conversions from bare-user to bu-only
2017-06-13 12:02:12 +00:00
test-basic-user.sh
lib/commit: Ensure bare-user objects are always user-readable
2017-06-30 21:23:48 +00:00
test-basic.sh
tests: Port to glib-tap.mk, make make check run all of the tests
2016-03-03 08:50:19 -05:00
test-bloom.c
lib/bloom: Add an internal bloom filter implementation
2017-06-26 15:56:07 +00:00
test-bsdiff.c
tests: Add some return value checking to pacify Coverity
2017-08-02 15:34:16 +00:00
test-checksum.c
static-delta: add some error handling
2016-09-09 19:06:11 +00:00
test-commit-sign.sh
repo+tests: Add [core]disable-xattrs=true, use it on overlayfs
2017-03-24 22:16:43 +00:00
test-core.js
tests: More fixes for gjs tests
2017-07-21 15:45:27 +00:00
test-corruption.sh
fsck: Check for refs missing corresponding commit
2017-05-09 14:05:46 +00:00
test-delta.sh
core: Sanitize error text validating refs (e.g. against HTML)
2017-07-19 14:45:57 +00:00
test-demo-buildsystem.sh
repo+tests: Add [core]disable-xattrs=true, use it on overlayfs
2017-03-24 22:16:43 +00:00
test-export.sh
ostree export: Add --prefix option
2016-04-19 12:28:06 +00:00
test-find-remotes.sh
lib/repo-pull: Fix counting of latest commits when finding repos
2017-08-08 13:59:58 +00:00
test-fsck-collections.sh
tests: Add integration tests for collections
2017-06-26 15:56:07 +00:00
test-gpg-signed-commit.sh
libtest: add has_gpgme() helper function
2016-08-31 16:52:12 +00:00
test-gpg-verify-result.c
tree-wide: Convert to using autoptr(GString) vs g_string_free(...,TRUE)
2017-05-05 15:10:51 +00:00
test-help.sh
tests: Use "bash strict mode"
2016-01-27 11:44:10 -05:00
test-init-collections.sh
tests: Add integration tests for collections
2017-06-26 15:56:07 +00:00
test-keyfile-utils.c
tests/keyfile-utils: Drop tests covering preconditions
2016-12-06 14:50:08 +00:00
test-libarchive-import.c
tree-wide: Use GLib autocleanups for libarchive
2017-08-02 16:55:38 +00:00
test-libarchive.sh
main: Make ostree --version output YAML (and add gitrev)
2017-02-22 18:57:18 +00:00
test-local-pull-depth.sh
repo+tests: Add [core]disable-xattrs=true, use it on overlayfs
2017-03-24 22:16:43 +00:00
test-local-pull.sh
tests: Fix incorrect summary --update usage in test-local-pull.sh
2017-06-27 19:19:32 +00:00
test-lzma.c
tests/lzma: Fix off-by-one in buffer size
2017-08-02 15:34:16 +00:00
test-mock-gio.c
lib/repo-finder: Add mount based OstreeRepoFinder implementation
2017-06-26 15:56:07 +00:00
test-mock-gio.h
lib/repo-finder: Add mount based OstreeRepoFinder implementation
2017-06-26 15:56:07 +00:00
test-mutable-tree.c
tests: Add some return value checking to pacify Coverity
2017-08-02 15:34:16 +00:00
test-oldstyle-partial.sh
repo+tests: Add [core]disable-xattrs=true, use it on overlayfs
2017-03-24 22:16:43 +00:00
test-ot-opt-utils.c
[ASAN] tests: Cleanup all current remaining leaks
2016-12-05 15:20:56 +00:00
test-ot-tool-util.c
[ASAN] tests: Cleanup all current remaining leaks
2016-12-05 15:20:56 +00:00
test-ot-unix-utils.c
[ASAN] tests: Cleanup all current remaining leaks
2016-12-05 15:20:56 +00:00
test-parent.sh
repo+tests: Add [core]disable-xattrs=true, use it on overlayfs
2017-03-24 22:16:43 +00:00
test-prune-collections.sh
tests: Add integration tests for collections
2017-06-26 15:56:07 +00:00
test-prune.sh
repo+tests: Add [core]disable-xattrs=true, use it on overlayfs
2017-03-24 22:16:43 +00:00
test-pull-bare.sh
tests: Run pull tests for bare/bare-user
2017-07-10 14:18:18 +00:00
test-pull-bareuser.sh
tests: Run pull tests for bare/bare-user
2017-07-10 14:18:18 +00:00
test-pull-c.c
tree-wide: Replace various uses of archive-z2 → archive
2017-06-29 16:00:13 +00:00
test-pull-collections.sh
tests: New tests for creating commits with bindings and pulling them
2017-07-06 19:08:14 +00:00
test-pull-commit-only.sh
repo+tests: Add [core]disable-xattrs=true, use it on overlayfs
2017-03-24 22:16:43 +00:00
test-pull-contenturl.sh
repo+tests: Add [core]disable-xattrs=true, use it on overlayfs
2017-03-24 22:16:43 +00:00
test-pull-corruption.sh
repo+tests: Add [core]disable-xattrs=true, use it on overlayfs
2017-03-24 22:16:43 +00:00
test-pull-depth.sh
repo+tests: Add [core]disable-xattrs=true, use it on overlayfs
2017-03-24 22:16:43 +00:00
test-pull-large-metadata.sh
repo+tests: Add [core]disable-xattrs=true, use it on overlayfs
2017-03-24 22:16:43 +00:00
test-pull-localcache.sh
Add "pull --localcache-repo"
2017-06-30 19:37:23 +00:00
test-pull-metalink.sh
repo+tests: Add [core]disable-xattrs=true, use it on overlayfs
2017-03-24 22:16:43 +00:00
test-pull-mirror-summary.sh
repo+tests: Add [core]disable-xattrs=true, use it on overlayfs
2017-03-24 22:16:43 +00:00
test-pull-mirrorlist.sh
repo+tests: Add [core]disable-xattrs=true, use it on overlayfs
2017-03-24 22:16:43 +00:00
test-pull-override-url.sh
repo+tests: Add [core]disable-xattrs=true, use it on overlayfs
2017-03-24 22:16:43 +00:00
test-pull-repeated.sh
repo+tests: Add [core]disable-xattrs=true, use it on overlayfs
2017-03-24 22:16:43 +00:00
test-pull-resume.sh
repo+tests: Add [core]disable-xattrs=true, use it on overlayfs
2017-03-24 22:16:43 +00:00
test-pull-subpath.sh
repo+tests: Add [core]disable-xattrs=true, use it on overlayfs
2017-03-24 22:16:43 +00:00
test-pull-summary-sigs.sh
repo+tests: Add [core]disable-xattrs=true, use it on overlayfs
2017-03-24 22:16:43 +00:00
test-pull-untrusted.sh
repo+tests: Add [core]disable-xattrs=true, use it on overlayfs
2017-03-24 22:16:43 +00:00
test-refs-collections.sh
tests: Add integration tests for collections
2017-06-26 15:56:07 +00:00
test-refs.sh
lib/repo: Add API to create and list ref aliases
2017-08-02 17:33:10 +00:00
test-remote-add-collections.sh
tests: Add integration tests for collections
2017-06-26 15:56:07 +00:00
test-remote-add.sh
tests: Port to glib-tap.mk, make make check run all of the tests
2016-03-03 08:50:19 -05:00
test-remote-cookies.sh
repo+tests: Add [core]disable-xattrs=true, use it on overlayfs
2017-03-24 22:16:43 +00:00
test-remote-gpg-import.sh
core: Fix default value of disable_xattrs
2017-04-04 15:54:46 +00:00
test-remote-headers.sh
pull: complete detached meta fetch before scanning
2017-05-18 01:14:15 +00:00
test-repo-finder-avahi.c
lib/repo-finder: Add Avahi based OstreeRepoFinder implementation
2017-06-26 15:56:07 +00:00
test-repo-finder-config.c
lib/repo-finder: Add config-file based OstreeRepoFinder implementation
2017-06-26 15:56:07 +00:00
test-repo-finder-mount.c
lib/repo-finder: Add mount based OstreeRepoFinder implementation
2017-06-26 15:56:07 +00:00
test-reset-nonlinear.sh
tests: Use "bash strict mode"
2016-01-27 11:44:10 -05:00
test-rofiles-fuse.sh
repo/checkout: Verify early if src/destination are on same device
2017-03-06 20:58:04 +00:00
test-rollsum-cli.c
Add Coccinelle usage: one for blacklisting, one for patch collection
2017-03-30 19:19:54 +00:00
test-rollsum.c
tree-wide: Switch tabs ⭾ in various files over to spaces ␠
2017-05-11 18:17:26 +00:00
test-sizes.js
tests: More fixes for gjs tests
2017-07-21 15:45:27 +00:00
test-summary-collections.sh
tests: Add integration tests for collections
2017-06-26 15:56:07 +00:00
test-summary-update.sh
ostree/summary: Add support for adding additional metadata
2017-06-27 19:19:32 +00:00
test-summary-view.sh
lib/repo: Omit deltas from the summary file if there are none
2017-06-07 16:55:35 +00:00
test-switchroot.sh
test-switchroot.sh: skip if no busybox
2017-06-27 21:45:34 +00:00
test-symbols.sh
Release 2017.9
2017-07-26 21:04:08 +00:00
test-sysroot-c.c
lib: Add ostree_sysroot_load_if_changed() API
2016-03-03 21:56:23 -05:00
test-sysroot.js
tests: More fixes for gjs tests
2017-07-21 15:45:27 +00:00
test-varint.c
[ASAN] tests: Cleanup all current remaining leaks
2016-12-05 15:20:56 +00:00
test-xattrs.sh
repo+tests: Add [core]disable-xattrs=true, use it on overlayfs
2017-03-24 22:16:43 +00:00