FEX/unittests/gvisor-tests/Known_Failures

# these fail on x86 CI
proc_pid_oomscore_test

# The behaviour of this is different between x86 and ARM
# SIGSEGV kills a thread successfully on ARM but not on x86
time_test

# these are disabled
# never terminates (even though we use timeout)
kill_test

# erratic test results
xattr_test
mlock_test

# These used to crash and fail its test, now hang
#mremap_test

# these are flaky on x86
stat_times_test

# Spins forever
ptrace_test

# The behaviour of this test changes depending on if running inside the test harness or not
# Works outside of the test harness but fails inside of it
pause_test

# This takes advantage of CLONE_VM in a way that breaks FEX's TLS usage
# Need to workaround this somehow
aio_test

# The Solidrun CI board isn't running a kernel with namespaces enabled
# gvisor doesn't error check correctly in this case and returns hard failure instead of correctly exiting
proc_pid_uid_gid_map_test

# This test is expecting the kernel to update the timeout variable but by default the kernel keeps time outs "sticky"
# See personality flag STICKY_TIMEOUTS
select_test

# This test uses syscalls that a userspace process doesn't have access to
syslog_test

# This very specifically is testing bad pointers passed in to the kernel to test EFAULT
access_test
sigprocmask_test

# Relies on some utility executables to be installed
exec_test

# This relies on splice behaviour that doesn't work even on x86 host
eventfd_test

# Relies on tricky behaviour
# MMapDeathTest.TruncateAfterCOWBreak : Needs to capture SIGBUS. Test fails, handwritten test works
# MMapTest.ProtNoneDeath : Needs to capture SIGBUS. Test fails, handwritten test works
# MMapTest.NoProtExecDeath : Needs to support SIGSEGV from memory mapped without PROT_EXEC but WITH READ + WRITE
# NoExceedLimitData : Requires brk to respect RLIMIT_DATA
mmap_test

# Fails even on host x86 device
# Expects the tmp folder to be empty and cleaned up between CI runs by a system process
# Does tests that removes user priveleges to touch those files
open_create_test

# Fails even on host x86 device
# Expects the /tmp folder to be cleaned up between INDIVIDUAL tests
# OpenTest.OTrunc creates /tmp/truncd
# OpenTest.OTruncAndReadOnlyDir attempts to create the same directory just afterwards
# Neither clean up after themselves
open_test

# This test doesn't correctly check to see if seccomp is enabled
# Attempts using regardless of enabled or not
seccomp_test

# Relies on ptrace to execute very simple binaries
exec_binary_test

# Relies on ptrace to send the parent process a signal
prctl_test

# Doesn't event pass on real x86 host
# GetrusageTest.IgnoreSIGCHLD is expecting memory usage to be zero, but it isn't
getrusage_test

# Doesn't even pass on real x86 host
sendfile_test

# Does a couple of things we don't support currently
# ForkTest.SigAltStack : Fork should inherit altstack
# ForkTest.Affinity : Affinity masks should be inherited
# CloneTest.NonCanonicalTLS : Non-Canonical TLS addresses should be rejecte with -EPERM
fork_test

# Requires accurate exit status from vfork
# Which we currently don't achieve
vfork_test

# Doesn't even pass on real x86 host
# ProcSelfFd.GetdentsDuplicates : Expects fcntl F_DUPFD, 1024 to work. Returns -1
# ProcSelfFdInfo.GetdentsDuplicates : Same as above
# ProcSelfAuxv.EntryPresence expects AT_SYSINFO_EHDR to exist. We don't support VDSO atm
# ProcPidCmdline.SubprocessForkSameCmdline expects to read parent pid's /proc/{pid}/cmdline and get executable name. Expecting a match.
# ProcPidExe.Subprocess : Same as above
# ProcPidEnviron.MatchesEnviron Doesn't expect us injecting environment variables in to its container space
proc_test

# Doesn't even pass on real x86 host
# Takes a long time to run as well
pty_test

# This syscall isn't implemented on ARM64
mempolicy_test

# Relies on namespaces to exist on the host (and user accessible) and isn't guaranteed by our CI
prctl_setuid_test

# This does 32-bit syscalls from a 64-bit process. Which we don't support yet
32bit_test

# We are lying to the guest application about true affinity. Missing some edges here
affinity_test

# Doesn't even pass on real x86 host
# Uses some private sandbox socket system?
# Seems like it needs some environment variables set that is google specific
connect_external_test

# Tests a bunch of different exception exits and we don't support them all
exceptions_test

# These search for folders in /
# Might need to rbind some folders to make it happy
# This currently passes on x86-64 hosts
# This fails on AArch64 because getdents isn't emulated
getdents_test

# Doesn't even pass on real x86 host
# Needs some helper executable to work
sigaltstack_test

# Sets up an alarm to fire every 500ms
# Sets up rcx and r11 to a known good value
# sets a boolean in memory and spins until the signal handler sets another boolean
# Stores the resulting values to a memory address
# Then checks to ensure the signal handler picked up the correct context values
# Seems like FEX currently doesn't?
sigiret_test

# Doesn't even pass on real x86 host
# This relies on splice behaviour that doesn't work even on x86 host
# Hangs after failing
splice_test

# Relies on ptrace to run
wait_test
sysret_test

# Has race conditions in the code and takes a long time to run
tcp_socket_test

# Doesn't even pass on real x86 host
socket_bind_to_device_test
socket_netlink_route_test
socket_bind_to_device_distribution_test
socket_bind_to_device_sequence_test
socket_inet_loopback_nogotsan_test
socket_ipv4_udp_unbound_loopback_nogotsan_test
socket_ipv4_udp_unbound_loopback_test

# This takes forever even on x86 host
socket_inet_loopback_test
socket_ip_tcp_generic_loopback_test
socket_stress_test
alarm_test
itimer_test
futex_test
fcntl_test

# these take a long time
ppoll_test
flock_test
pipe_test
epoll_test
concurrency_test

# This requires partial read support in the kernel
# Tries reading a page's worth of bytes from an FD across a page with no permissions
# Expecting a partial read to succeed
# Arm64 devices don't have this
partial_bad_buffer_test

# Depending on board can work or not, depending on kernel configuration
# IPv6 maybe?
socket_ipv6_udp_unbound_external_networking_test

# This test is flaky
proc_net_test
rtsignal_test
sigstop_test
stat_test

# Flaky
udp_socket_test

# This test checks for the header layout from `/proc/net/udp` which has changed slightly with newer kernels
proc_net_udp_test

# This test is broken since kernel commit: 36e2c7421f02
# Upstream gvisor has the offending tests removed
inotify_test

# Needs testing
semaphore_test

# This test does an unsafe timer test. (NoTimeout subtest specifically).
# Sets a timer for 100ms then starts a pselect with unlimited timeout.
# If the timer fires before the pselect starts then pselect will hang forever.
# Since we are running these tests on a fully loaded system, we tend to context switch,
# causing the chance of a hang to occur quite frequently.
pselect_test

# Somewhere between kernel versions 5.15 and 6.0, timerfd lseek behaviour has changed.
# On older kernels it would return -ESPIPE, on new kernels it returns 0.
# This test expects -ESPIPE behaviour.
timerfd_test

# Tests that poll correctly returns EFAULT
poll_test