POSIX-results

Introduction

This page records the POSIX test results of Yocto 1.2. You can get more informations from POSIX test overall on Yocto. The test suite is from ltp and version 20110915. Six platforms are included: qemu-arm qemu-ppc qemu-mips beagleboard mpc8315rdb routerstation. There are 1794 test cases in total, only failed items are list here.

All POSIX test cases can be get at POSIX git repository.

The online POSIX specification could be viewed at IEEE Std 1003.1, 2004 Edition.

Results and analysis

The results of groups SIG SEM THR TMR MSG TPS MEM are listed. Conclusion of some test cases have been given.

Value of clumn "status":

Bug: it is a bug and the test case needs to be fixed.

Ignore: the case is not appropriate for the hardware or linux

POSIX: that test case is in development, that causes the test fails

SIG

1.2 M1 RC2

POSIX cases	status	platforms	error msg	analysis	bugzilla
sigaltstack/9-1		sugarbay	conformance/interfaces/sigaltstack/9-1: execution: UNRESOLVED		n/a
sigset/7-1		sugarbay	conformance/interfaces/sigset/7-1: execution: UNRESOLVED		n/a
sigset/6-1		sugarbay	conformance/interfaces/sigset/6-1: execution: UNRESOLVED		n/a

1.1

POSIX cases	status	platforms	error msg	analysis	bugzilla
sigaction/16-1	Ignore	qemu-mips routerstation	"test not present"	NO SIGSTKFLT on mips platform. Signals are defined in /usr/include/bits/signum.h	n/a

SEM

POSIX cases	status	platforms	error msg	analysis	bugzilla
sem_init/7-1	ignore	qemu-arm beagleboard qemu-mips routerstation qemu-ppc mpc8315e	can't test: There is no constraint on SEM_NSEMS_MAX	_SC_SEM_NSEMS_MAX is not supported by sysconf(). In implement it check whether SEM_NSEMS_MAX is defined, then if defined return SEM_NSEMS_MAX, otherwise return -1. No SEM_NSEMS_MAX defined in Yocto Ubuntu and Fedora	n/a

THR

POSIX cases	status	platforms	error msg	analysis	bugzilla
pthread_cond_broadcast/1-2	Bug	qemu-arm beagleboard	HUNG - "timeout"	die lock issue	n/a
pthread_create/1-6	POSIX	qemu-arm beagleboard qemu-mips routerstation qemu-ppc mpc8315e		testcase create NCPU=4 threads running with a high priority with the same sched policy policy and one with a low-priority. The low-priority thread should not run until the other threads stop running, unless the machine has more than NCPU processors. Redefine NCPU = sysconf(_SC_NPROCESSORS_CONF), testcase should pass	n/a
pthread_create/10-1	POSIX	qemu-arm beagleboard qemu-mips routerstation	Segmentation fault	test case use an uninitialized attributes object to case pthread_create() segmentation fault then catch the signal. But the uninitialized object is NOT invalid to pthread_create() all the time	n/a
pthread_create/14-1		routerstation	Segmentation fault	test failed 6/10 times	n/a
pthread_mutex_lock/3-1	POSIX (send patch)	qemu-arm beagleboard routerstation qemu-ppc mpc8315e	User defined signal 2	Signals are sended before install signal handler	n/a
pthread_rwlock_rdlock/2-1	Ignore(unsupport)	qemu-arm beagleboard qemu-mips routerstation qemu-ppc mpc8315e	Main thread read lock 'rwlock' with high priority. Child thread1 write lock 'wrlock' with medium priority will block. child thread2 read lock 'rwlock' with low priority should block because a high priority write lock is waiting, but read lock doesn't block.	This test case is to test option Thread Execution Scheduling of pthread rwlock. But eglibc/libc don't support this option. They provide a __flags option to identify perfer 'read lock' or read lock, and the default is 'read lock' first. A Non-portable api pthread_rwlockattr_setkind_np() is provided to set this value. The test case is not supported.
pthread_rwlock_rdlock/2-2	Ignore(unsupport)	qemu-arm beagleboard qemu-mips routerstation qemu-ppc mpc8315e	Main thread read lock 'rwlock' with high priority. Child thread1 write lock 'wrlock' with low priority will block. child thread2 read lock 'rwlock' with same low priority should block because a same priority write lock is waiting, but read lock doesn't block.	See pthread_rwlock_rdlock/2-1
pthread_rwlock_unlock/3-1	Ignore(unsupport)	qemu-arm beagleboard qemu-mips routerstation qemu-ppc mpc8315e	Main thread write lock 'rwlock' with high priority. Child thread1 write lock 'wrlock' with medium priority will block. Child thread2 read lock 'wrlock' with same mediumpriority. Child thread3 write lock 'wrlock' with low priority. When main thread unlock 'rwlock', child thread1 get the 'wrlock'. When child thread1 unlock 'rwlock', child thread2 should get the read lock 'wrlock' because it has higher priority than child thread3. But it is the child thread3 who get the 'wrlock'.	See pthread_rwlock_rdlock/2-1

TMR

POSIX cases	status	platforms	error msg	analysis	bugzilla
timer_getoverrun/3-1	POSIX	qemu-arm beagleboard qemu-mips routerstation qemu-ppc mpc8315e		Just print something and then return UNTESTED	Bug 1827
timer_getoverrun/2-3	Ignore on ARM	qemu-arm beagleboard routerstation		"WR: Change CONFIG_HZ from 100 to 250 can solve this." The root cause is that these platform don't provide HIGH RESOLUTION TIMER. The value on platforms which test case can pass is only 1 nanosecond. But on qemuarm is 10000000 nanoseconds, on routerstation is 4000250 nanoseconds. After set CONFIG_HIGH_RES_TIMER=y for routerstation (CONFIG_HZ=250 has been set), test case passes. These 2 kernel configurations for qemuarm are not permitted.	n/a
clock_getcpuclockid/5-1	Ignore	qemu-arm beagleboard qemu-mips routerstation qemu-ppc mpc8315e	clock_getcpuclockid(1, ..) passed unexpectedly	Permission issue. When call clock_getcpuclockid() as a unpriviledge user to get process 'init' cpu time, it succeeds but expect fails with EPERM. This is not supported by Linux. In man page, it addresses EPERM " does not occur on Linux unless the kernel does not support obtaining the per-process CPU-time clock of another process.". clock_getcpuclockid() is implemented in eglibc source file libc/sysdeps/unix/sysv/linux/clock_getcpuclockid.c, call system call clock_getres() without permission check	n/a

MSG

POSIX cases	status	platforms	error msg	analysis	bugzilla
mq_timedreceive/5-2	Ignore	qemu-ppc qemu-mips mpc8315		The time() can not specifies an abs_timeout to mq_timedreceiver () for preempt_rt kernel	n/a
mq_timedreceive/10-2	Ignore	qemu-arm beagleboard qemu-mips routerstation qemu-ppc mpc8315e		Pass a invalid parameter and expect mq_timedreceive doesn't check it. In linux implement, it will call timespec_valid() to validate the parameter abs_timeout.	n/a
mq_close/5-1	POSIX	qemu-arm beagleboard qemu-mips routerstation qemu-ppc mpc8315e		Just print something and then return	n/a
mq_open/4-1	POSIX	qemu-arm beagleboard qemu-mips routerstation qemu-ppc mpc8315e		Just print something and then return	n/a
mq_open/10-1	POSIX	qemu-arm beagleboard qemu-mips routerstation qemu-ppc mpc8315e		Just print something and then return	n/a
mq_open/14-1	POSIX	qemu-arm beagleboard qemu-mips routerstation qemu-ppc mpc8315e		Just print something and then return	n/a
mq_open/17-1	POSIX	qemu-arm beagleboard qemu-mips routerstation qemu-ppc mpc8315e		Just print something and then return	n/a
mq_open/22-1	POSIX	qemu-arm beagleboard qemu-mips routerstation qemu-ppc mpc8315e		Just print something and then return	n/a
mq_open/24-1	POSIX	qemu-arm beagleboard qemu-mips routerstation qemu-ppc mpc8315e		Just print something and then return	n/a
mq_open/25-1	POSIX	qemu-arm beagleboard qemu-mips routerstation qemu-ppc mpc8315e		Just print something and then return	n/a
mq_open/28-1	POSIX	qemu-arm beagleboard qemu-mips routerstation qemu-ppc mpc8315e		Just print something and then return	n/a
mq_open/30-1	POSIX	qemu-arm beagleboard qemu-mips routerstation qemu-ppc mpc8315e		Just print something and then return	n/a
mq_send/6-1	POSIX	qemu-arm beagleboard qemu-mips routerstation qemu-ppc mpc8315e		Just print something and then return	n/a
mq_timedsend/6-1	POSIX	qemu-arm beagleboard qemu-mips routerstation qemu-ppc mpc8315e		Just print something and then return	n/a
mq_timedsend/17-1	POSIX	qemu-arm beagleboard qemu-mips routerstation qemu-ppc mpc8315e		Just print something and then return	n/a
mq_unlink/2-3	POSIX	qemu-arm beagleboard qemu-mips routerstation qemu-ppc mpc8315e		Just print something and then return	n/a

TPS

POSIX cases	status	platforms	error msg	analysis	bugzilla
sched_getparam/6-1	Ignore	qemu-arm beagleboard qemu-mips routerstation qemu-ppc mpc8315e		sched_getparam is a system call, and defined in kernel/sched.c:L5510. Current security policy is "Unix Discretionary Access Control", and it doesn't perform any permission check. WR: A permission test. On Linux, the kernel makes no check on user permission to call this API. So basically we don't know on what condition a system should return EPERM. It is implementation defined.
sched_getscheduler/7-1	Ignore	qemu-arm beagleboard qemu-mips routerstation qemu-ppc mpc8315e		WR: A permission test. On Linux, the kernel makes no check on user permission to call this API. So basically we don't know on what condition a system should return EPERM. It is implementation defined.	n/a
sched_yield/1-1	Bug / Fixed	qemu-arm qemu-mips routerstation qemu-ppc mpc8315e		SIGINT is trapped by bin/run-test.sh	n/a
sched_get_priority_max/1-3	Ignore	qemu-arm beagleboard qemu-mips routerstation qemu-ppc mpc8315e		Schedule policy SCHED_SPORADIC is not supported by linux	n/a
sched_get_priority_min/1-3	Ignore	qemu-arm beagleboard qemu-mips routerstation qemu-ppc mpc8315e		Schedule policy SCHED_SPORADIC is not supported by linux	n/a
sched_getscheduler/2-1	POSIX	qemu-arm beagleboard qemu-mips routerstation qemu-ppc mpc8315e		Just print something and then return	n/a
sched_getscheduler/7-1	Ignore	qemu-arm beagleboard qemu-mips routerstation qemu-ppc mpc8315e		WR: A permission test. On Linux, the kernel makes no check on user permission to call this API. So basically we don't know on what condition a system should return EPERM. It is implementation defined.	n/a
sched_setparam/3-1	POSIX	qemu-arm beagleboard qemu-mips routerstation qemu-ppc mpc8315e		Just print something and then return	n/a
sched_setparam/6-1	POSIX	qemu-arm beagleboard qemu-mips routerstation qemu-ppc mpc8315e		Just print something and then return	n/a
sched_setparam/7-1	POSIX	qemu-arm beagleboard qemu-mips routerstation qemu-ppc mpc8315e		Just print something and then return	n/a
sched_setparam/8-1	POSIX	qemu-arm beagleboard qemu-mips routerstation qemu-ppc mpc8315e		Just print something and then return	n/a
sched_setparam/12-1	Ignore	qemu-arm beagleboard qemu-mips routerstation qemu-ppc mpc8315e		Schedule policy SCHED_SPORADIC is not supported by linux	n/a
sched_setparam/13-1	Ignore	qemu-arm beagleboard qemu-mips routerstation qemu-ppc mpc8315e		Schedule policy SCHED_SPORADIC is not supported by linux	n/a
sched_setparam/14-1	Ignore	qemu-arm beagleboard qemu-mips routerstation qemu-ppc mpc8315e		Schedule policy SCHED_SPORADIC is not supported by linux	n/a
sched_setparam/15-1	Ignore	qemu-arm beagleboard qemu-mips routerstation qemu-ppc mpc8315e		Schedule policy SCHED_SPORADIC is not supported by linux	n/a
sched_setparam/16-1	Ignore	qemu-arm beagleboard qemu-mips routerstation qemu-ppc mpc8315e		Schedule policy SCHED_SPORADIC is not supported by linux	n/a
sched_setparam/17-1	POSIX	qemu-arm beagleboard qemu-mips routerstation qemu-ppc mpc8315e		Just print something and then return	n/a
sched_setparam/18-1	POSIX	qemu-arm beagleboard qemu-mips routerstation qemu-ppc mpc8315e		Just print something and then return	n/a
sched_setparam/19-1	POSIX	qemu-arm beagleboard qemu-mips routerstation qemu-ppc mpc8315e		Just print something and then return	n/a
sched_setparam/20-1	Ignore	qemu-arm beagleboard qemu-mips routerstation qemu-ppc mpc8315e		PTHREAD_SCOPE_PROCESS for pthread_attr_setscope() is not supported by linux	n/a
sched_setparam/21-1	Ignore	qemu-arm beagleboard qemu-mips routerstation qemu-ppc mpc8315e		PTHREAD_SCOPE_PROCESS for pthread_attr_setscope() is not supported by linux	n/a
sched_setparam/21-2	Ignore	qemu-arm beagleboard qemu-mips routerstation qemu-ppc mpc8315e		PTHREAD_SCOPE_PROCESS for pthread_attr_setscope() is not supported by linux	n/a
sched_setparam/23-2	Ignore	qemu-arm beagleboard qemu-mips routerstation qemu-ppc mpc8315e		Schedule policy SCHED_SPORADIC is not supported by linux	n/a
sched_setparam/23-3	Ignore	qemu-arm beagleboard qemu-mips routerstation qemu-ppc mpc8315e		Schedule policy SCHED_SPORADIC is not supported by linux	n/a
sched_setparam/23-4	Ignore	qemu-arm beagleboard qemu-mips routerstation qemu-ppc mpc8315e		Schedule policy SCHED_SPORADIC is not supported by linux	n/a
sched_setparam/23-5	Ignore	qemu-arm beagleboard qemu-mips routerstation qemu-ppc mpc8315e		Schedule policy SCHED_SPORADIC is not supported by linux	n/a
sched_setparam/25-2	Ignore	qemu-arm beagleboard qemu-mips routerstation qemu-ppc mpc8315e		Schedule policy SCHED_SPORADIC is not supported by linux	n/a
sched_setparam/25-3	Ignore	qemu-arm beagleboard qemu-mips routerstation qemu-ppc mpc8315e		Schedule policy SCHED_SPORADIC is not supported by linux	n/a
sched_setparam/25-4	Ignore	qemu-arm beagleboard qemu-mips routerstation qemu-ppc mpc8315e		Schedule policy SCHED_SPORADIC is not supported by linux	n/a
sched_setscheduler/2-1	POSIX	qemu-arm beagleboard qemu-mips routerstation qemu-ppc mpc8315e		Just print something and then return	n/a
sched_setscheduler/5-1	POSIX	qemu-arm beagleboard qemu-mips routerstation qemu-ppc mpc8315e		Just print something and then return	n/a
sched_setscheduler/6-1	POSIX	qemu-arm beagleboard qemu-mips routerstation qemu-ppc mpc8315e		Just print something and then return	n/a
sched_setscheduler/7-1	POSIX	qemu-arm beagleboard qemu-mips routerstation qemu-ppc mpc8315e		Just print something and then return	n/a
sched_setscheduler/9-1	Ignore	qemu-arm beagleboard qemu-mips routerstation qemu-ppc mpc8315e		Schedule policy SCHED_SPORADIC is not supported by linux	n/a
sched_setscheduler/10-1	Ignore	qemu-arm beagleboard qemu-mips routerstation qemu-ppc mpc8315e		Schedule policy SCHED_SPORADIC is not supported by linux	n/a
sched_setscheduler/11-1	Ignore	qemu-arm beagleboard qemu-mips routerstation qemu-ppc mpc8315e		Schedule policy SCHED_SPORADIC is not supported by linux	n/a
sched_setscheduler/12-1	POSIX	qemu-arm beagleboard qemu-mips routerstation qemu-ppc mpc8315e		Just print something and then return	n/a
sched_setscheduler/13-1	POSIX	qemu-arm beagleboard qemu-mips routerstation qemu-ppc mpc8315e		Just print something and then return	n/a
sched_setscheduler/14-1	POSIX	qemu-arm beagleboard qemu-mips routerstation qemu-ppc mpc8315e		Just print something and then return	n/a
sched_setscheduler/15-1	POSIX	qemu-arm beagleboard qemu-mips routerstation qemu-ppc mpc8315e		Just print something and then return	n/a
sched_setscheduler/15-2	POSIX	qemu-arm beagleboard qemu-mips routerstation qemu-ppc mpc8315e		Just print something and then return	n/a
sched_setscheduler/17-2	Ignore	qemu-arm beagleboard qemu-mips routerstation qemu-ppc mpc8315e		Schedule policy SCHED_SPORADIC is not supported by linux	n/a
sched_setscheduler/17-3	Ignore	qemu-arm beagleboard qemu-mips routerstation qemu-ppc mpc8315e		Schedule policy SCHED_SPORADIC is not supported by linux	n/a
sched_setscheduler/17-4	Ignore	qemu-arm beagleboard qemu-mips routerstation qemu-ppc mpc8315e		Schedule policy SCHED_SPORADIC is not supported by linux	n/a
sched_setscheduler/19-2	Ignore	qemu-arm beagleboard qemu-mips routerstation qemu-ppc mpc8315e		Schedule policy SCHED_SPORADIC is not supported by linux	n/a
sched_setscheduler/19-3	Ignore	qemu-arm beagleboard qemu-mips routerstation qemu-ppc mpc8315e		Schedule policy SCHED_SPORADIC is not supported by linux	n/a
sched_setscheduler/19-4	Ignore	qemu-arm beagleboard qemu-mips routerstation qemu-ppc mpc8315e		Schedule policy SCHED_SPORADIC is not supported by linux	n/a
sched_setscheduler/22-1	POSIX	qemu-arm beagleboard qemu-mips routerstation qemu-ppc mpc8315e		Just print something and then return	n/a
sched_setscheduler/22-2	POSIX	qemu-arm beagleboard qemu-mips routerstation qemu-ppc mpc8315e		Just print something and then return	n/a

MEM

POSIX cases	status	platforms	error msg	analysis	bugzilla
mmap/11-4	POSIX	qemu-arm beagleboard qemu-mips routerstation qemu-ppc mpc8315e	pa: 0x400fb000 pa_2: 0x40115000 Modification of the partial page at the end of an object is written out	Test case map a file with size of 1/2 * page_size, then write char 'b' to next byte of 1/2 * page_size. Then try to re-mmap() the file and expect the byte next to of 1/2 * page_size should not be character 'b'. Test on all platforms are failed. The reason is after first mmap(), the mapped page for the file is cached in page cache. When do the 2nd or 3rd mmap() still get the same mapped page. mmap() is a system call and implemented by mmap2(). Then the call sequence is mmap2() ==> sys_mmap_pgoff() ==> do_mmap_pgoff() ==> mmap_region() ==> file->f_op->mmap(). In ext3 file system, file->f_op->mmap() point to generic_file_mmap(). In generic_file_mmap(), assign the Page Fault Exception Handler to filemap_fault(). When access the Virtual Memory Area, page fault will occur and the run filemap_fault(). In filemap_fault(), kernel run find_get_page() to search the physical page in the page cache.	n/a
mmap/11-5	Bug	qemu-arm beagleboard qemu-mips routerstation qemu-ppc mpc8315e	Modification of the partial page at the end of an object is written out	Same with mmap/11-4, and this test case is to test share memory, so file->f_op->mmap() point to shm_fault() in ipc/shm.c, then it call shmem_fault() ==> shmem_getpage() ==> shmem_getpage_gfp() ==> find_lock_page(). In find_lock_page() it will search the desired pagecache page.	n/a
mmap/27-1	POSIX	qemu-arm beagleboard qemu-mips routerstation qemu-ppc mpc8315e		eglibc has define macro MAP_FIXED, and test case check MAP_FIXED defined then quit with PTS_UNTESTED	n/a
mmap/28-1	Bug	qemu-arm beagleboard qemu-mips routerstation qemu-ppc mpc8315e		test mmap() with lenght 2 timed file size expect fail with errno ENXIO( No such device or address) but successed.	n/a
mmap/31-1	POSIX	qemu-arm qemu-ppc mpc8315e beagleboard	off: fffff000, len: fffff000 expect EOVERFLOW but get other error: Cannot allocate memory	Parameters lenth and offset for mmap() are too large	n/a
shm_open/23-1	Bug	qemu-ppc	HUNG	Create too many (1000) semphores for qemu-ppc, maybe limited to hardware	n/a
shm_open/2-1	POSIX	qemu-arm beagleboard qemu-mips routerstation qemu-ppc mpc8315e		test code just return PTS_UNTESTED and do nothing	n/a
shm_open/3-1	POSIX	qemu-arm beagleboard qemu-mips routerstation qemu-ppc mpc8315e		test code just return PTS_UNTESTED and do nothing	n/a
shm_open/6-1	POSIX	qemu-arm beagleboard qemu-mips routerstation qemu-ppc mpc8315e		test code just return PTS_UNTESTED and do nothing	n/a
shm_open/7-1	POSIX	qemu-arm beagleboard qemu-mips routerstation qemu-ppc mpc8315e		test code just return PTS_UNTESTED and do nothing	n/a
shm_open/9-1	POSIX	qemu-arm beagleboard qemu-mips routerstation qemu-ppc mpc8315e		test code just return PTS_UNTESTED and do nothing	n/a
shm_open/10-1	POSIX	qemu-arm beagleboard qemu-mips routerstation qemu-ppc mpc8315e		test code just return PTS_UNTESTED and do nothing	n/a
shm_open/12-1	POSIX	qemu-arm beagleboard qemu-mips routerstation qemu-ppc mpc8315e		test code just return PTS_UNTESTED and do nothing	n/a
shm_open/19-1	POSIX	qemu-arm beagleboard qemu-mips routerstation qemu-ppc mpc8315e		test code just return PTS_UNTESTED and do nothing	n/a
shm_open/24-1	POSIX	qemu-arm beagleboard qemu-mips routerstation qemu-ppc mpc8315e		test code just return PTS_UNTESTED and do nothing	n/a
shm_open/27-1	POSIX	qemu-arm beagleboard qemu-mips routerstation qemu-ppc mpc8315e		test code just return PTS_UNTESTED and do nothing	n/a
shm_open/29-1	POSIX	qemu-arm beagleboard qemu-mips routerstation qemu-ppc mpc8315e		test code just return PTS_UNTESTED and do nothing	n/a
shm_open/36-1	POSIX	qemu-arm beagleboard qemu-mips routerstation qemu-ppc mpc8315e		test code just return PTS_UNTESTED and do nothing	n/a
shm_open/42-1	POSIX	qemu-arm beagleboard qemu-mips routerstation qemu-ppc mpc8315e		test code just return PTS_UNTESTED and do nothing	n/a