The linux-test test includes an attempt to check the utime and stat
syscalls by setting the atime and mtime of a file to specific values,
and then calling stat() to check that the values read back correctly.
Unfortunately this is flaky, as it will fail if some other process
(for instance a virus scanner, backup program, etc) gets in and reads
the file between the utime() and stat() call, resulting in a host
syscall sequence like this:
utimensat(AT_FDCWD, "file2",
[{tv_sec=1001, tv_nsec=0} /* 1970-01-01T01:16:41+0100 */,
{tv_sec=1000, tv_nsec=0} /* 1970-01-01T01:16:40+0100 */], 0) = 0
# successfully set atime to 1001 and mtime to 1000
statx(AT_FDCWD, "file2", AT_STATX_SYNC_AS_STAT|AT_NO_AUTOMOUNT,
STATX_BASIC_STATS,
{stx_mask=STATX_BASIC_STATS|STATX_MNT_ID,
stx_blksize=4096, stx_attributes=0, stx_nlink=1, stx_uid=32808,
stx_gid=32808, stx_mode=S_IFREG|0600, stx_ino=21659016,
stx_size=100, stx_blocks=8,
stx_attributes_mask=STATX_ATTR_COMPRESSED|STATX_ATTR_IMMUTABLE|
STATX_ATTR_APPEND|STATX_ATTR_NODUMP|STATX_ATTR_ENCRYPTED|
STATX_ATTR_AUTOMOUNT|STATX_ATTR_MOUNT_ROOT|STATX_ATTR_VERITY|
STATX_ATTR_DAX,
stx_atime={tv_sec=1760091862, tv_nsec=63509009} /* 2025-10-10T11:24:22.063509009+0100 */,
stx_ctime={tv_sec=1760091862, tv_nsec=63509009} /* 2025-10-10T11:24:22.063509009+0100 */,
stx_mtime={tv_sec=1000, tv_nsec=0} /* 1970-01-01T01:16:40+0100 */,
stx_rdev_major=0, stx_rdev_minor=0, stx_dev_major=252,
stx_dev_minor=0, stx_mnt_id=0x1f}) = 0
# but when we statx the file, we get back an mtime of 1000
# but an atime corresponding to when the other process read it
and which will cause the test program to fail with the error
message "stat time".
In theory we could defend against this by e.g. operating on files in
a dummy loopback mount filesystem which we mounted as 'noatime', but
this isn't worth the hassle. Just drop the check on atime.
Cc: qemu-stable@nongnu.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-ID: <20251016150357.876415-4-alex.bennee@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
The latest hexagon compiler picks up that we never consume wcount.
Given the name of the #define that rcount checks against is WCOUNT_MAX
I figured the check just got missed.
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20221221090411.1995037-5-alex.bennee@linaro.org>
test_socket hangs randomly in connect(), especially when run without
qemu. Apparently the reason is that linux started treating backlog
value of 0 literally instead of rounding it up since v4.4 (commit
ef547f2ac16b).
So set it to 1 instead.
Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
Message-Id: <20220725144251.192720-1-iii@linux.ibm.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
We had some messy code to filter out stuff we can't build. Lets junk
that and simplify the logic by pushing some stuff into subdirs. In
particular we move:
float_helpers into libs - not a standalone test
linux-test into linux - so we only build on Linux hosts
This allows for at least some of the tests to be nominally usable
by *BSD user builds.
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Cc: Warner Losh <imp@bsdimp.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Warner Losh <imp@bsdimp.com>
Message-Id: <20210917162332.3511179-4-alex.bennee@linaro.org>
2021-10-12 08:37:05 +01:00
Renamed from tests/tcg/multiarch/linux-test.c (Browse further)
