This is an update of a similar post I made back in June.
This time around (1) I'm using QEMU master because we
got all the necessary fixes into it (2) I'm using an
updated LTP which also has some fixes.
Although it would obviously be nice to fix some of
the remaining issues here, I don't think any of them
are particularly important to real-world programs.
aarch64 and armhf, QEMU git commit 1b0d3845b454 and LTP commit 0119096bd11.
ARM:
Total Tests: 1093
Total Skipped Tests: 80
Total Failures: 57
Kernel Version: 4.4.0-31-generic
Machine Architecture: armv7l
AArch64:
Total Tests: 1093
Total Skipped Tests: 142
Total Failures: 47
Kernel Version: 4.4.0-31-generic
Machine Architecture: aarch64
Unimplemented syscalls:
adjtimex01 NR_adjtimex not implemented
adjtimex02 NR_adjtimex not implemented
mq_notify01 mq_notify syscall not implemented
mq_notify02 ditto
process_vm_readv01 process_vm_readv syscall not implemented
process_vm_readv02 ditto
process_vm_readv03 ditto
process_vm_writev01 process_vm_writev syscall not implemented
process_vm_writev02 ditto
ptrace01 ptrace not implemented
ptrace02 ditto
ptrace03 ditto
ptrace05 ditto
remap_file_pages01 remap_file_pages syscall unimplemented
remap_file_pages02 ditto
preadv01 preadv
preadv01_64
preadv02
preadv02_64
pwritev01 pwritev
pwritev01_64
pwritev02
pwritev02_64
sched_setattr01 sched_setattr
sched_getattr01 sched_getattr
sched_getattr02 ditto
(Some 'skipped' tests are also skipped because we don't implement
the necessary syscalls; those aren't listed here.)
Unimplemented flags to implemented syscalls
clone05 CLONE_VFORK not supported
clone08 oddball clone flags not supported
kcmp03 ditto
setns02 we don't support CLONE_NEWUTS, CLONE_NEWIPC
ioctl03 no TUNGETFEATURES (or other tun/tap support)
Unfixable in QEMU:
creat07 creat on text's executable doesn't fail ETXTBSY
-- this is unfixable because the kernel doesn't allow userspace to
make mappings fail ETXTBSY; only true executables executed by the
kernel can get there.
futex_wait02 wants set_robust_list and we can't do that
futex_wake03 ditto
Wants to operate on signal 64 (which under QEMU is reserved to the host libc):
rt_sigaction01 wants to test signal 64
sighold02 wants to operate on signal 64
sigrelse01 wants to operate on signal 64
Test for a bug which is present in my host kernel
writev07
Misc unfixed:
fcntl34 fcntl F_OFD_SETLKW fails EINVAL
fcntl34_64 ditto
inotify06 spurious fail? works fine run individually
mmap12 test uses /proc/self/pagemap which we
don't emulate
mmap13 POSIX mandates SIGBUS for outside-mmap accesses,
but QEMU ends up squashing all SIGBUS into SIGSEGV
mprotect01 mprotect(0) should fail ENOMEM
mremap03 mremap doesn't fail when it should
msync03 msync should fail ENOMEM on unmapped memory
munlock02 munlock should fail ENOMEM on unmapped memory
mincore01 mincore on unmapped memory or overlong length
should fail ENOMEM
madvise02 madvise should fail for misaligned address,
bad advice value, etc etc etc
readahead02 intermittent? "failed to save any I/O"
setgroups03 libc wrapper for setgroups() will abort() for some
error cases but syscall should return an errno
setgroups03_16 ditto
setregid02 ditto
setregid02_16 ditto
setreuid06 ditto
setreuid06_16 ditto
setxattr03 only fails on arm, not aarch64
Tests which we skip because they hang or otherwise break things:
clone02 we aren't implementing clone flags correctly so
the child gets the wrong return value for
getppid() and kills the test harness by accident
fork13 hangs
futex_wait03 hangs
msgctl11 runs OK but thrashes the machine with lots
of processes
syslog* these try to restart syslogd, which is a bad
plan in a chroot
mmap16 gets rather confused, and in failing it doesn't
clean up a loopback mount it set up, which makes
later tests fail
thanks
-- PMM
