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ext4 reuses inode numbers, tmpfs does not.
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Instead bubble up the error to the testing object.
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Looking at the dircache debug output, we see
that a "git status" workload has a very bad
cache hit rate because the entries expire or
get evicted before they can be reused.
Increase both cache size and lifetime for
a 4x speedup:
Before: 75s
After: 17s
https://github.com/rfjakob/gocryptfs/issues/410
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https://github.com/client9/misspell
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The -0 flags works like xargs -0.
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lsof may get stuck when gocryptfs itself is stuck.
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The former interal ctlsock server package is renamed
to ctlsocksrv.
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We did not use t.Name() as it was not available
before Go 1.8. Now the oldest Go version we support is
Go 1.11, so we can use it.
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Check Stat() vs Fstat() result. Not very useful
at the moment as the kernel never seems to call Fstat().
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On Fedora, /tmp is tmpfs, which behaves differently than ext4
(inode numbers are never reused, for example).
Use /var/tmp, which is ext4 on Fedora, to get a more realistic
test environment.
This also allows us to drop the xattr workaround.
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When running
$ go test ./tests/matrix/
in isolation, it failed like this:
fd leak? before, after:
[0r=/dev/null 3w=/dev/null 5r=/proc/8078/fd (hidden:4)]
[0r=/dev/null 3w=/dev/null 5w=/tmp/go-build366655199/b001/testlog.txt 7r=/proc/8078/fd (hidden:4)]
Filter by prefix to get rid of this spurious test failure.
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The tests check if they leak fds themselves, but we also
check if gocryptfs leaks fds. Clarify what is what in the
error message.
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This used to dump a backtrace to the console which obscured what
is going on.
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The parent directories need execute all permissions.
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When we run tests as root, they will leave root-owned files
in testParentDir, which causes trouble when we run tests as
a normal user later on. Split by UID.
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It's confusing that you must pass "-extpass" for Mount but not
for InitFS. Note that in the comment.
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Regression test for https://github.com/rfjakob/gocryptfs/issues/354
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This avoids sporadic test failures on macOS.
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This should get rid of
Openat: O_NOFOLLOW missing: flags = 0x0
Fchmodat: adding missing AT_SYMLINK_NOFOLLOW flag
sys_common_test.go:203: chmod on symlink should have failed, but did not. New mode=0333
UnmountErr: "[...]/057376762.mnt" was not found in MountInfo, cannot check for FD leak
and add some context to
--- FAIL: TestUtimesNano (0.00s)
matrix_test.go:628: no such file or directory
See https://github.com/rfjakob/gocryptfs/pull/343#issuecomment-453888006
for full test output
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As the dirCache now has 3 entries, the tests should accept
up to 3 extra fds without declaring an fd leak.
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VerifyExistence missed unstat()able files in the directory listing
because ioutil.ReadDir() filtered them out.
https://github.com/rfjakob/gocryptfs/issues/285
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When O_PATH is specified in flags, flag bits other than O_CLOEXEC, O_DIRECTORY,
and O_NOFOLLOW are ignored.
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The gocryptfs process may keep one fd open for up to one second
in the dirCache.
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Un-spaghettify the function and let the callers open
the directory.
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Hopefully gets rid of the false positives on travis.
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Give the gocryptfs process one extra millisecond to close
files. Allows us to drop several other sleeps.
UnmountErr now really returns an error when it detects an fd leak
instead of just printing a message.
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These are created on demand by the Go runtime and are usually
not interesting.
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Tests outside the test_helpers package may want to look
at this.
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Also, drop entries that disappear while we stat them.
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With the FD leak logic, the mount/unmount functions have
become complex enough to give them their own file.
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For now, this only prints a message but does not fail the tests.
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This will allow to tests to monitor fd usage and maybe other things.
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Setting TMPDIR now allows to run the tests against
a directory of your choice, making it easier to test
different filesystems.
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Directly use int file descriptors for the dirfd
and get rid of one level of indirection.
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In the past we did not check whether all methods of checking
the file return the same result. We should.
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When mounted via /etc/fstab like this,
/a /b fuse.gocryptfs default 0 0
we always get extra options passed. As reported by @mahkoh
at https://github.com/rfjakob/gocryptfs/pull/233 :
mount passes `-o noexec` if `-o user` is set and `-o exec` is not set.
If both `-o user` and `-o exec` are set, it passes `-o exec`.
Make these options work, and in addtion, also make -suid and -rw
work the same way.
Reported-by: @mahkoh
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These were using stale err values.
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Reported by https://goreportcard.com/report/github.com/rfjakob/gocryptfs
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Gnome may still have files open causing spurious test
failures.
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And fix two in test_helpers.Mount().
Leftover fds can cause an unmount failure like this later:
fusermount: failed to unmount /tmp/gocryptfs-test-parent/873632270/default-plain: Device or resource busy
so try to catch them early.
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Most corruption cases except xattr should be covered.
With test filesystem.
The output is still pretty ugly. xattr support will
be added in the next commits.
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SwitchTestParentDir changes testParentDir. This is used when you want
to perform tests on a special filesystem. For example, the xattr tests
cannot run on tmpfs and use /var/tmp instead of /tmp.
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macos does not have lazy unmount, so let's not use it
on linux either.
If the unmount fails, run "lsof" to find the open file.
Also fix the first bug we found this way.
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To Go test logic waits for stderr and stdout to close, so
when we share it with a subprocess, it will wait for it to
exit as well.
We don't want the tests to hang when the unmount fails.
Seen on MacOS as reported at
https://github.com/rfjakob/gocryptfs/issues/213
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