* FAIL: LTP: clone08.c:135: FAIL: ctid != getpid() (0 != 1008)
@ 2020-10-21 16:12 Naresh Kamboju
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From: Naresh Kamboju @ 2020-10-21 16:12 UTC (permalink / raw)
To: open list, linux-m68k, X86 ML, LTP List, lkft-triage,
Linux-Next Mailing List
Cc: Christian Brauner, Ingo Molnar, Thomas Gleixner,
Matthew Wilcox (Oracle), Peter Zijlstra (Intel),
Al Viro, Geert Uytterhoeven, Linus Torvalds, Viresh Kumar,
zenglg.jy, Stephen Rothwell
LTP syscalls clone08 and clone301 FAILED on x86_64 KASAN enabled build
But tests are getting PASS on Non KASAN build.
This regression started happening from Linux next-20201015 nowards
Please refer to the strace output at the bottom of this email.
There are few more regression on linux next i will share those failure
in a separate email,
ltp-syscalls-tests:
* clone08
* clone301
* fcntl34
* fcntl34_64
* fcntl36
* fcntl36_64
* keyctl02
* rt_tgsigqueueinfo01
metadata:
git branch: master
git repo: https://gitlab.com/Linaro/lkft/mirrors/next/linux-next
git describe: next-20201015
kernel-config:
https://builds.tuxbuild.com/SCI7Xyjb7V2NbfQ2lbKBZw/kernel.config
steps to reproduce:
# boot x86_64 with KASAN enabled kernel and run tests
# cd /opt/ltp/testcases/bin
# ./clone08
# ./clone301
clone08:
---------
clone08.c:71: INFO: running CLONE_PARENT
clone08.c:115: PASS: clone and forked child has the same parent
clone08.c:71: INFO: running CLONE_CHILD_SETTID
clone08.c:135: FAIL: ctid != getpid() (0 != 1008)
clone08.c:71: INFO: running CLONE_PARENT_SETTID
clone08.c:145: FAIL: ptid != getpid() (0 != 1009)
clone08.c:71: INFO: running CLONE_THREAD
clone08.c:222: PASS: clone has the same thread id
clone08.c:212: PASS: futex exit on ctid change, ctid: 0
clone301:
----------
clone301.c:159: PASS: Parent got correct signal SIGCHLD
clone301.c:159: PASS: Parent got correct signal SIGUSR2
clone301.c:159: PASS: Parent got correct signal SIGCHLD
clone301.c:159: PASS: Parent got correct signal SIGCHLD
clone301.c:138: FAIL: pidfd_send_signal() failed: EBADF (9)
clone301.c:79: FAIL: Child haven't got signal
Reported-by: Naresh Kamboju <naresh.kamboju@linaro.org>
full test log link,
https://lkft.validation.linaro.org/scheduler/job/1844087
strace output:
+ strace -f ./clone08
execve(\"./clone08\", [\"./clone08\"], 0x7ffe70dccb78 /* 22 vars */) = 0
brk(NULL) = 0x2531000
access(\"/etc/ld.so.preload\", R_OK) = -1 ENOENT (No such file or
directory)
openat(AT_FDCWD, \"/etc/ld.so.cache\", O_RDONLY|O_CLOEXEC) = 3
fstat(3, {st_mode=S_IFREG|0644, st_size=19408, ...}) = 0
mmap(NULL, 19408, PROT_READ, MAP_PRIVATE, 3, 0) = 0x7f7e61446000
close(3) = 0
openat(AT_FDCWD, \"/lib/libc.so.6\", O_RDONLY|O_CLOEXEC) = 3
read(3, \"\177ELF\2\1\1\3\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0p\2\0\0\0\0\0\"...,
832) = 832
fstat(3, {st_mode=S_IFREG|0755, st_size=1771456, ...}) = 0
mmap(NULL, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1,
0) = 0x7f7e61444000
mmap(NULL, 3877600, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3,
0) = 0x7f7e60e74000
mprotect(0x7f7e6101e000, 2093056, PROT_NONE) = 0
mmap(0x7f7e6121d000, 24576, PROT_READ|PROT_WRITE,
MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x1a9000) = 0x7f7e6121d000
mmap(0x7f7e61223000, 15072, PROT_READ|PROT_WRITE,
MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x7f7e61223000
close(3) = 0
arch_prctl(ARCH_SET_FS, 0x7f7e61445580) = 0
mprotect(0x7f7e6121d000, 16384, PROT_READ) = 0
mprotect(0x61c000, 4096, PROT_READ) = 0
mprotect(0x7f7e6144b000, 4096, PROT_READ) = 0
munmap(0x7f7e61446000, 19408) = 0
getpid() = 525
access(\"/dev/shm\", F_OK) = 0
getpid() = 525
openat(AT_FDCWD, \"/dev/shm/ltp_clone08_525\", O_RDWR|O_CREAT|O_EXCL, 0600) = 3
chmod(\"/dev/shm/ltp_clone08_525\", 0666) = 0
ftruncate(3, 4096) = 0
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_SHARED, 3, 0) = 0x7f7e6144a000
unlink(\"/dev/shm/ltp_clone08_525\") = 0
close(3) = 0
rt_sigaction(SIGALRM, {sa_handler=0x403e40, sa_mask=[ALRM],
sa_flags=SA_RESTORER|SA_RESTART, sa_restorer=0x7f7e60ea85b0},
{sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGUSR1, {sa_handler=0x403ce0, sa_mask=[USR1],
sa_flags=SA_RESTORER|SA_RESTART, sa_restorer=0x7f7e60ea85b0},
{sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
ioctl(2, TCGETS, {B115200 opost isig icanon echo ...}) = 0
write(2, \"tst_test.c:1246: INFO: [\"..., 64tst_test.c:1246: INFO:
Timeout per run is 0h 05m 00s
) = 64
getpid() = 525
alarm(300) = 0
rt_sigaction(SIGINT, {sa_handler=0x403df0, sa_mask=[INT],
sa_flags=SA_RESTORER|SA_RESTART, sa_restorer=0x7f7e60ea85b0},
{sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
clone(strace: Process 526 attached
child_stack=NULL,
flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD,
child_tidptr=0x7f7e61445850) = 526
[pid 525] wait4(526, <unfinished ...>
[pid 526] rt_sigaction(SIGALRM, {sa_handler=SIG_DFL, sa_mask=[ALRM],
sa_flags=SA_RESTORER|SA_RESTART, sa_restorer=0x7f7e60ea85b0},
{sa_handler=0x403e40, sa_mask=[ALRM], sa_flags=SA_RESTORER|SA_RESTART,
sa_restorer=0x7f7e60ea85b0}, 8) = 0
[pid 526] rt_sigaction(SIGUSR1, {sa_handler=SIG_DFL, sa_mask=[USR1],
sa_flags=SA_RESTORER|SA_RESTART, sa_restorer=0x7f7e60ea85b0},
{sa_handler=0x403ce0, sa_mask=[USR1], sa_flags=SA_RESTORER|SA_RESTART,
sa_restorer=0x7f7e60ea85b0}, 8) = 0
[pid 526] rt_sigaction(SIGINT, {sa_handler=SIG_DFL, sa_mask=[INT],
sa_flags=SA_RESTORER|SA_RESTART, sa_restorer=0x7f7e60ea85b0},
{sa_handler=0x403df0, sa_mask=[INT], sa_flags=SA_RESTORER|SA_RESTART,
sa_restorer=0x7f7e60ea85b0}, 8) = 0
[pid 526] setpgid(0, 0) = 0
[pid 526] clock_gettime(CLOCK_MONOTONIC, {tv_sec=248, tv_nsec=252551861}) = 0
[pid 526] getppid() = 525
[pid 526] kill(525, SIGUSR1) = 0
[pid 525] <... wait4 resumed> 0x7ffc8bca80d8, 0, NULL) = ?
ERESTARTSYS (To be restarted if SA_RESTART is set)
[pid 525] --- SIGUSR1 {si_signo=SIGUSR1, si_code=SI_USER,
si_pid=526, si_uid=0} ---
[pid 525] alarm(300 <unfinished ...>
[pid 526] brk(NULL <unfinished ...>
[pid 525] <... alarm resumed> ) = 300
[pid 526] <... brk resumed> ) = 0x2531000
[pid 525] rt_sigreturn({mask=[]} <unfinished ...>
[pid 526] brk(0x2552000 <unfinished ...>
[pid 525] <... rt_sigreturn resumed> ) = 61
[pid 526] <... brk resumed> ) = 0x2552000
[pid 525] wait4(526, <unfinished ...>
[pid 526] getpid() = 526
[pid 526] mmap(NULL, 1052672, PROT_READ|PROT_WRITE,
MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7e61343000
[pid 526] getpid() = 526
[pid 526] write(2, \"clone08.c:71: INFO: r\"..., 52clone08.c:71:
INFO: running CLONE_PARENT
) = 52
[pid 526] clone(child_stack=NULL,
flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD,
child_tidptr=0x7f7e61445850) = 527
strace: Process 527 attached
[pid 526] wait4(-1, <unfinished ...>
[pid 527] getppid() = 526
[pid 527] clone(strace: Process 528 attached
<unfinished ...>
[pid 528] getppid( <unfinished ...>
[pid 527] <... clone resumed> child_stack=0x7f7e61443000,
flags=CLONE_PARENT|SIGCHLD) = 528
[pid 528] <... getppid resumed> ) = 526
[pid 527] exit_group(0) = ?
[pid 528] write(2, \"clone08.c:115: PASS: "..., 75clone08.c:115:
PASS: clone and forked child has the same parent
) = 75
[pid 528] exit(0) = ?
[pid 527] +++ exited with 0 +++
[pid 526] <... wait4 resumed> [{WIFEXITED(s) && WEXITSTATUS(s) ==
0}], 0, NULL) = 527
[pid 526] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED,
si_pid=527, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
[pid 526] wait4(-1, <unfinished ...>
[pid 528] +++ exited with 0 +++
[pid 526] <... wait4 resumed> [{WIFEXITED(s) && WEXITSTATUS(s) ==
0}], 0, NULL) = 528
[pid 526] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED,
si_pid=528, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
[pid 526] wait4(-1, 0x7ffc8bca809c, 0, NULL) = -1 ECHILD (No child processes)
[pid 526] getpid() = 526
[pid 526] wait4(-1, 0x7ffc8bca809c, 0, NULL) = -1 ECHILD (No child processes)
[pid 526] write(2, \"clone08.c:71: INFO: r\"..., 58clone08.c:71:
INFO: running CLONE_CHILD_SETTID
) = 58
[pid 526] clone(strace: Process 529 attached
child_stack=0x7f7e61443000, flags=CLONE_CHILD_SETTID|SIGCHLD,
child_tidptr=0x61d2e4) = 529
[pid 529] getpid( <unfinished ...>
[pid 526] wait4(-1, <unfinished ...>
[pid 529] <... getpid resumed> ) = 529
[pid 529] getpid() = 529
[pid 529] write(2, \"clone08.c:135: FAIL: "..., 60clone08.c:135:
FAIL: ctid != getpid() (0 != 529)
) = 60
[pid 529] exit(0) = ?
[pid 529] +++ exited with 0 +++
[pid 526] <... wait4 resumed> [{WIFEXITED(s) && WEXITSTATUS(s) ==
0}], 0, NULL) = 529
[pid 526] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED,
si_pid=529, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
[pid 526] wait4(-1, 0x7ffc8bca809c, 0, NULL) = -1 ECHILD (No child processes)
[pid 526] getpid() = 526
[pid 526] wait4(-1, 0x7ffc8bca809c, 0, NULL) = -1 ECHILD (No child processes)
[pid 526] write(2, \"clone08.c:71: INFO: r\"..., 59clone08.c:71:
INFO: running CLONE_PARENT_SETTID
) = 59
[pid 526] clone(strace: Process 530 attached
child_stack=0x7f7e61443000,
flags=CLONE_VM|CLONE_PARENT_SETTID|SIGCHLD, parent_tidptr=0x61d2e8) =
530
[pid 530] getpid( <unfinished ...>
[pid 526] wait4(-1, <unfinished ...>
[pid 530] <... getpid resumed> ) = 530
[pid 530] getpid() = 530
[pid 530] write(2, \"clone08.c:145: FAIL: "..., 60clone08.c:145:
FAIL: ptid != getpid() (0 != 530)
) = 60
[pid 530] exit(0) = ?
[pid 530] +++ exited with 0 +++
[pid 526] <... wait4 resumed> [{WIFEXITED(s) && WEXITSTATUS(s) ==
0}], 0, NULL) = 530
[pid 526] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED,
si_pid=530, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
[pid 526] wait4(-1, 0x7ffc8bca809c, 0, NULL) = -1 ECHILD (No child processes)
[pid 526] getpid() = 526
strace output log link,
https://lkft.validation.linaro.org/scheduler/job/1865313#L2121
Test case links:
https://github.com/linux-test-project/ltp/blob/master/testcases/kernel/syscalls/clone/clone08.c
https://github.com/linux-test-project/ltp/blob/master/testcases/kernel/syscalls/clone3/clone301.c
--
Linaro LKFT
https://lkft.linaro.org
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2020-10-21 16:12 FAIL: LTP: clone08.c:135: FAIL: ctid != getpid() (0 != 1008) Naresh Kamboju
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