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Fixed minor things to get CI passing again

Browse Source 
- Added caching to Travis install dirs, because otherwise
  pip3 install fails randomly
- Increased size of littlefs-fuse disk because test script has
  a larger footprint now
- Skip a couple of reentrant tests under byte-level writes because
  the tests just take too long and cause Travis to bail due to no
  output for 10m
- Fixed various Valgrind errors
  - Suppressed uninit checks for tests where LFS_BLOCK_ERASE_VALUE == -1.
    In this case rambd goes uninitialized, which is fine for rambd's
    purposes. Note I couldn't figure out how to limit this suppression
    to only the malloc in rambd, this doesn't seem possible with Valgrind.
  - Fixed memory leaks in exhaustion tests
  - Fixed off-by-1 string null-terminator issue in paths tests
- Fixed lfs_file_sync issue caused by revealed by fixing memory leaks
  in exhaustion tests. Getting ENOSPC during a file write puts the file
  in a bad state where littlefs doesn't know how to write it out safely.
  In this case, lfs_file_sync and lfs_file_close return 0 without
  writing out state so that device-side resources can still be cleaned
  up. To recover from ENOSPC, the file needs to be reopened and the
  writes recreated. Not sure if there is a better way to handle this.
- Added some quality-of-life improvements to Valgrind testing
  - Fit Valgrind messages into truncated output when not in verbose mode
  - Turned on origin tracking
This commit is contained in:
Christopher Haster
2020-02-17 12:00:47 -06:00
parent c7987a3162
commit d04b077506
6 changed files with 50 additions and 22 deletions
Download Patch File Download Diff File Expand all files Collapse all files

32
.travis.yml
View File

@@ -4,10 +4,16 @@ env:
- CFLAGS=-Werror
- MAKEFLAGS=-j
# cache installation dirs
cache:
pip: true
directories:
- $HOME/.cache/apt
# common installation
_: &install-common
# need toml, also pip3 isn't installed by default?
- sudo apt-get install python3-pip
- sudo apt-get install python3 python3-pip
- sudo pip3 install toml
# setup a ram-backed disk to speed up reentrant tests
- mkdir disks
@@ -189,22 +195,12 @@ jobs:
stage: test
env:
- NAME=littlefs-valgrind
- TFLAGS="$TFLAGS --valgrind"
install:
- *install-common
- sudo apt-get install valgrind
- valgrind --version
script: *test-example
- {<<: *valgrind, script: *test-default}
- {<<: *valgrind, script: *test-nor}
- {<<: *valgrind, script: *test-emmc}
- {<<: *valgrind, script: *test-nand}
- {<<: *valgrind, script: *test-no-intrinsics}
- {<<: *valgrind, script: *test-no-inline}
- {<<: *valgrind, script: *test-byte-writes}
- {<<: *valgrind, script: *test-block-cycles}
- {<<: *valgrind, script: *test-odd-block-count}
- {<<: *valgrind, script: *test-odd-block-size}
script:
- make test TFLAGS+="-k --valgrind"
# self-host with littlefs-fuse for fuzz test
- stage: test
@@ -224,7 +220,7 @@ jobs:
- mkdir mount
- sudo chmod a+rw /dev/loop0
- dd if=/dev/zero bs=512 count=4096 of=disk
- dd if=/dev/zero bs=512 count=128K of=disk
- losetup /dev/loop0 disk
script:
# self-host test
@@ -239,7 +235,7 @@ jobs:
- cd mount/littlefs
- stat .
- ls -flh
- make -B test_dirs test_files QUIET=1
- make -B test
# test migration using littlefs-fuse
- stage: test
@@ -260,7 +256,7 @@ jobs:
- mkdir mount
- sudo chmod a+rw /dev/loop0
- dd if=/dev/zero bs=512 count=4096 of=disk
- dd if=/dev/zero bs=512 count=128K of=disk
- losetup /dev/loop0 disk
script:
# compile v1 and v2
@@ -277,7 +273,7 @@ jobs:
- cd mount/littlefs
- stat .
- ls -flh
- make -B test_dirs test_files QUIET=1
- make -B test
# attempt to migrate
- cd ../..
@@ -291,7 +287,7 @@ jobs:
- cd mount/littlefs
- stat .
- ls -flh
- make -B test_dirs test_files QUIET=1
- make -B test
# automatically create releases
- stage: deploy

7
lfs.c
View File

@@ -2707,6 +2707,12 @@ int lfs_file_sync(lfs_t *lfs, lfs_file_t *file) {
LFS_TRACE("lfs_file_sync(%p, %p)", (void*)lfs, (void*)file);
LFS_ASSERT(file->flags & LFS_F_OPENED);
if (file->flags & LFS_F_ERRED) {
// it's not safe to do anything if our file errored
LFS_TRACE("lfs_file_sync -> %d", 0);
return 0;
}
int err = lfs_file_flush(lfs, file);
if (err) {
file->flags |= LFS_F_ERRED;
@@ -2715,7 +2721,6 @@ int lfs_file_sync(lfs_t *lfs, lfs_file_t *file) {
}
if ((file->flags & LFS_F_DIRTY) &&
!(file->flags & LFS_F_ERRED) &&
!lfs_pair_isnull(file->m.pair)) {
// update dir entry
uint16_t type;

6
scripts/test.py
View File

@@ -299,10 +299,16 @@ class ValgrindTestCase(TestCase):
return not self.leaky and super().shouldtest(**args)
def test(self, exec=[], **args):
verbose = args.get('verbose', False)
uninit = (self.defines.get('LFS_ERASE_VALUE', None) == -1)
exec = [
'valgrind',
'--leak-check=full',
] + (['--undef-value-errors=no'] if uninit else []) + [
] + (['--track-origins=yes'] if not uninit else []) + [
'--error-exitcode=4',
'--error-limit=no',
] + (['--num-callers=1'] if not verbose else []) + [
'-q'] + exec
return super().test(exec=exec, **args)

2
tests/test_dirs.toml
View File

@@ -157,6 +157,7 @@ code = '''
[[case]] # reentrant many directory creation/rename/removal
define.N = [5, 11]
reentrant = true
if = 'LFS_CACHE_SIZE >= 4' # these just take too long with byte-level writes
code = '''
err = lfs_mount(&lfs, &cfg);
if (err) {
@@ -383,6 +384,7 @@ code = '''
[[case]] # reentrant file creation/rename/removal
define.N = [5, 25]
reentrant = true
if = 'LFS_CACHE_SIZE >= 4' # these just take too long with byte-level writes
code = '''
err = lfs_mount(&lfs, &cfg);
if (err) {

20
tests/test_exhaustion.toml
View File

@@ -33,6 +33,9 @@ code = '''
lfs_ssize_t res = lfs_file_write(&lfs, &file, &c, 1);
assert(res == 1 || res == LFS_ERR_NOSPC);
if (res == LFS_ERR_NOSPC) {
err = lfs_file_close(&lfs, &file);
assert(err == 0 || err == LFS_ERR_NOSPC);
lfs_unmount(&lfs) => 0;
goto exhausted;
}
}
@@ -40,6 +43,7 @@ code = '''
err = lfs_file_close(&lfs, &file);
assert(err == 0 || err == LFS_ERR_NOSPC);
if (err == LFS_ERR_NOSPC) {
lfs_unmount(&lfs) => 0;
goto exhausted;
}
}
@@ -111,6 +115,9 @@ code = '''
lfs_ssize_t res = lfs_file_write(&lfs, &file, &c, 1);
assert(res == 1 || res == LFS_ERR_NOSPC);
if (res == LFS_ERR_NOSPC) {
err = lfs_file_close(&lfs, &file);
assert(err == 0 || err == LFS_ERR_NOSPC);
lfs_unmount(&lfs) => 0;
goto exhausted;
}
}
@@ -118,6 +125,7 @@ code = '''
err = lfs_file_close(&lfs, &file);
assert(err == 0 || err == LFS_ERR_NOSPC);
if (err == LFS_ERR_NOSPC) {
lfs_unmount(&lfs) => 0;
goto exhausted;
}
}
@@ -198,6 +206,9 @@ code = '''
lfs_ssize_t res = lfs_file_write(&lfs, &file, &c, 1);
assert(res == 1 || res == LFS_ERR_NOSPC);
if (res == LFS_ERR_NOSPC) {
err = lfs_file_close(&lfs, &file);
assert(err == 0 || err == LFS_ERR_NOSPC);
lfs_unmount(&lfs) => 0;
goto exhausted;
}
}
@@ -205,6 +216,7 @@ code = '''
err = lfs_file_close(&lfs, &file);
assert(err == 0 || err == LFS_ERR_NOSPC);
if (err == LFS_ERR_NOSPC) {
lfs_unmount(&lfs) => 0;
goto exhausted;
}
}
@@ -283,6 +295,9 @@ code = '''
lfs_ssize_t res = lfs_file_write(&lfs, &file, &c, 1);
assert(res == 1 || res == LFS_ERR_NOSPC);
if (res == LFS_ERR_NOSPC) {
err = lfs_file_close(&lfs, &file);
assert(err == 0 || err == LFS_ERR_NOSPC);
lfs_unmount(&lfs) => 0;
goto exhausted;
}
}
@@ -290,6 +305,7 @@ code = '''
err = lfs_file_close(&lfs, &file);
assert(err == 0 || err == LFS_ERR_NOSPC);
if (err == LFS_ERR_NOSPC) {
lfs_unmount(&lfs) => 0;
goto exhausted;
}
}
@@ -364,6 +380,9 @@ code = '''
lfs_ssize_t res = lfs_file_write(&lfs, &file, &c, 1);
assert(res == 1 || res == LFS_ERR_NOSPC);
if (res == LFS_ERR_NOSPC) {
err = lfs_file_close(&lfs, &file);
assert(err == 0 || err == LFS_ERR_NOSPC);
lfs_unmount(&lfs) => 0;
goto exhausted;
}
}
@@ -371,6 +390,7 @@ code = '''
err = lfs_file_close(&lfs, &file);
assert(err == 0 || err == LFS_ERR_NOSPC);
if (err == LFS_ERR_NOSPC) {
lfs_unmount(&lfs) => 0;
goto exhausted;
}
}

5
tests/test_paths.toml
View File

@@ -247,14 +247,14 @@ code = '''
lfs_mkdir(&lfs, "coffee/coldcoffee") => 0;
memset(path, 'w', LFS_NAME_MAX+1);
path[LFS_NAME_MAX+2] = '\0';
path[LFS_NAME_MAX+1] = '\0';
lfs_mkdir(&lfs, path) => LFS_ERR_NAMETOOLONG;
lfs_file_open(&lfs, &file, path, LFS_O_WRONLY | LFS_O_CREAT)
=> LFS_ERR_NAMETOOLONG;
memcpy(path, "coffee/", strlen("coffee/"));
memset(path+strlen("coffee/"), 'w', LFS_NAME_MAX+1);
path[strlen("coffee/")+LFS_NAME_MAX+2] = '\0';
path[strlen("coffee/")+LFS_NAME_MAX+1] = '\0';
lfs_mkdir(&lfs, path) => LFS_ERR_NAMETOOLONG;
lfs_file_open(&lfs, &file, path, LFS_O_WRONLY | LFS_O_CREAT)
=> LFS_ERR_NAMETOOLONG;
@@ -270,7 +270,6 @@ code = '''
lfs_mkdir(&lfs, "coffee/warmcoffee") => 0;
lfs_mkdir(&lfs, "coffee/coldcoffee") => 0;
lfs_mount(&lfs, &cfg) => 0;
memset(path, 'w', LFS_NAME_MAX);
path[LFS_NAME_MAX] = '\0';
lfs_mkdir(&lfs, path) => 0;