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PTY read differences on Illumos

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Bug Extension: standard OS: Illumos SAPI: cli
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Description

When testing some other things on Illumos, I noticed that t/standard/tests/file/bug69442.phpt test hangs due to some pty incompatibility:

Truss output 

    # truss /usr/local/bin/php ext/standard/tests/file/bug69442.phpt
execvex("/usr/local/bin/php", 0xFFFFFC7FFFDFCC68, 0xFFFFFC7FFFDFCC80, 0)  argc = 2
sysinfo(SI_MACHINE, "i86pc", 257)               = 6
mmap(0x00000000, 56, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_ANON, 4294967295, 0) = 0xFFFFFC7FE2ED0000
mmap(0x00000000, 4096, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_ANON, 4294967295, 0) = 0xFFFFFC7FED070000
mmap(0x00000000, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANON, 4294967295, 0) = 0xFFFFFC7FED0F0000
mmap(0x00000000, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANON, 4294967295, 0) = 0xFFFFFC7FEEB70000
memcntl(0xFFFFFC7FEF399000, 88824, MC_ADVISE, MADV_WILLNEED, 0, 0) = 0
mmap(0x00000000, 4096, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_ANON, 4294967295, 0) = 0xFFFFFC7FEECD0000
memcntl(0x00400000, 1632728, MC_ADVISE, MADV_WILLNEED, 0, 0) = 0
resolvepath("/usr/lib/amd64/ld.so.1", "/lib/amd64/ld.so.1", 1023) = 18
resolvepath("/usr/local/bin/php", "/usr/local/bin/php", 1023) = 18
stat("/usr/local/bin/php", 0xFFFFFC7FFFDFC8B0)  = 0
open("/var/ld/64/ld.config", O_RDONLY)          Err#2 ENOENT
stat("/usr/ucblib/libresolv.so.2", 0xFFFFFC7FFFDFBC80) Err#2 ENOENT
stat("/usr/gcc/14/lib/amd64/libresolv.so.2", 0xFFFFFC7FFFDFBC80) Err#2 ENOENT
stat("/lib/64/libresolv.so.2", 0xFFFFFC7FFFDFBC80) = 0
resolvepath("/lib/64/libresolv.so.2", "/lib/amd64/libresolv.so.2", 1023) = 25
open("/lib/64/libresolv.so.2", O_RDONLY)        = 3
mmapobj(3, MMOBJ_INTERPRET, 0xFFFFFC7FEECD0CC0, 0xFFFFFC7FFFDFBBDC, 0x00000000) = 0
close(3)                                        = 0
mmap(0x00000000, 4096, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_ANON, 4294967295, 0) = 0xFFFFFC7FEF2C0000
memcntl(0xFFFFFC7FEF200000, 118392, MC_ADVISE, MADV_WILLNEED, 0, 0) = 0
stat("/usr/ucblib/libproc.so.1", 0xFFFFFC7FFFDFBC80) Err#2 ENOENT
stat("/usr/gcc/14/lib/amd64/libproc.so.1", 0xFFFFFC7FFFDFBC80) Err#2 ENOENT
stat("/lib/64/libproc.so.1", 0xFFFFFC7FFFDFBC80) = 0
resolvepath("/lib/64/libproc.so.1", "/lib/amd64/libproc.so.1", 1023) = 23
open("/lib/64/libproc.so.1", O_RDONLY)          = 3
mmapobj(3, MMOBJ_INTERPRET, 0xFFFFFC7FEF2C0C40, 0xFFFFFC7FFFDFBBDC, 0x00000000) = 0
close(3)                                        = 0
mmap(0x00000000, 4096, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_ANON, 4294967295, 0) = 0xFFFFFC7FEF360000
memcntl(0xFFFFFC7FEF2F0000, 89320, MC_ADVISE, MADV_WILLNEED, 0, 0) = 0
stat("/usr/ucblib/libm.so.2", 0xFFFFFC7FFFDFBC80) Err#2 ENOENT
stat("/usr/gcc/14/lib/amd64/libm.so.2", 0xFFFFFC7FFFDFBC80) Err#2 ENOENT
stat("/lib/64/libm.so.2", 0xFFFFFC7FFFDFBC80)   = 0
resolvepath("/lib/64/libm.so.2", "/lib/amd64/libm.so.2", 1023) = 20
open("/lib/64/libm.so.2", O_RDONLY)             = 3
mmapobj(3, MMOBJ_INTERPRET, 0xFFFFFC7FEF360B58, 0xFFFFFC7FFFDFBBDC, 0x00000000) = 0
close(3)                                        = 0
mmap(0x00000000, 4096, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_ANON, 4294967295, 0) = 0xFFFFFC7FEF370000
memcntl(0xFFFFFC7FEEEC0000, 81056, MC_ADVISE, MADV_WILLNEED, 0, 0) = 0
stat("/usr/ucblib/libnsl.so.1", 0xFFFFFC7FFFDFBC80) Err#2 ENOENT
stat("/usr/gcc/14/lib/amd64/libnsl.so.1", 0xFFFFFC7FFFDFBC80) Err#2 ENOENT
stat("/lib/64/libnsl.so.1", 0xFFFFFC7FFFDFBC80) = 0
resolvepath("/lib/64/libnsl.so.1", "/lib/amd64/libnsl.so.1", 1023) = 22
open("/lib/64/libnsl.so.1", O_RDONLY)           = 3
mmapobj(3, MMOBJ_INTERPRET, 0xFFFFFC7FEF370AB0, 0xFFFFFC7FFFDFBBDC, 0x00000000) = 0
close(3)                                        = 0
mmap(0x00000000, 4096, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_ANON, 4294967295, 0) = 0xFFFFFC7FEF2E0000
memcntl(0xFFFFFC7FEF0A0000, 186416, MC_ADVISE, MADV_WILLNEED, 0, 0) = 0
stat("/usr/ucblib/libsocket.so.1", 0xFFFFFC7FFFDFBC80) Err#2 ENOENT
stat("/usr/gcc/14/lib/amd64/libsocket.so.1", 0xFFFFFC7FFFDFBC80) Err#2 ENOENT
stat("/lib/64/libsocket.so.1", 0xFFFFFC7FFFDFBC80) = 0
resolvepath("/lib/64/libsocket.so.1", "/lib/amd64/libsocket.so.1", 1023) = 25
open("/lib/64/libsocket.so.1", O_RDONLY)        = 3
mmapobj(3, MMOBJ_INTERPRET, 0xFFFFFC7FEF2E0B28, 0xFFFFFC7FFFDFBBDC, 0x00000000) = 0
close(3)                                        = 0
mmap(0x00000000, 4096, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_ANON, 4294967295, 0) = 0xFFFFFC7FEF1A0000
memcntl(0xFFFFFC7FEF280000, 34808, MC_ADVISE, MADV_WILLNEED, 0, 0) = 0
stat("/usr/ucblib/libgcc_s.so.1", 0xFFFFFC7FFFDFBC80) Err#2 ENOENT
stat("/usr/gcc/14/lib/amd64/libgcc_s.so.1", 0xFFFFFC7FFFDFBC80) = 0
resolvepath("/usr/gcc/14/lib/amd64/libgcc_s.so.1", "/usr/gcc/14/lib/amd64/libgcc_s.so.1", 1023) = 35
open("/usr/gcc/14/lib/amd64/libgcc_s.so.1", O_RDONLY) = 3
mmapobj(3, MMOBJ_INTERPRET, 0xFFFFFC7FEF1A0AB0, 0xFFFFFC7FFFDFBBDC, 0x00000000) = 0
close(3)                                        = 0
mmap(0x00000000, 4096, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_ANON, 4294967295, 0) = 0xFFFFFC7FEF1D0000
memcntl(0xFFFFFC7FEF040000, 40752, MC_ADVISE, MADV_WILLNEED, 0, 0) = 0
stat("/usr/ucblib/libc.so.1", 0xFFFFFC7FFFDFBC80) Err#2 ENOENT
stat("/usr/gcc/14/lib/amd64/libc.so.1", 0xFFFFFC7FFFDFBC80) Err#2 ENOENT
stat("/lib/64/libc.so.1", 0xFFFFFC7FFFDFBC80)   = 0
resolvepath("/lib/64/libc.so.1", "/lib/amd64/libc.so.1", 1023) = 20
open("/lib/64/libc.so.1", O_RDONLY)             = 3
mmapobj(3, MMOBJ_INTERPRET, 0xFFFFFC7FEF1D0A60, 0xFFFFFC7FFFDFBBDC, 0x00000000) = 0
close(3)                                        = 0
mmap(0x00000000, 4096, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_ANON, 4294967295, 0) = 0xFFFFFC7FEF1F0000
memcntl(0xFFFFFC7FEECF0000, 445576, MC_ADVISE, MADV_WILLNEED, 0, 0) = 0
stat("/usr/gcc/10/lib/amd64/libc.so.1", 0xFFFFFC7FFFDFBC80) Err#2 ENOENT
stat("/usr/gcc/10/lib/amd64/libsaveargs.so.1", 0xFFFFFC7FFFDFBC80) Err#2 ENOENT
stat("/lib/64/libsaveargs.so.1", 0xFFFFFC7FFFDFBC80) Err#2 ENOENT
stat("/usr/lib/64/libsaveargs.so.1", 0xFFFFFC7FFFDFBC80) = 0
resolvepath("/usr/lib/64/libsaveargs.so.1", "/usr/lib/amd64/libsaveargs.so.1", 1023) = 31
open("/usr/lib/64/libsaveargs.so.1", O_RDONLY)  = 3
mmapobj(3, MMOBJ_INTERPRET, 0xFFFFFC7FEF1D0E50, 0xFFFFFC7FFFDFBBDC, 0x00000000) = 0
close(3)                                        = 0
mmap(0x00000000, 4096, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_ANON, 4294967295, 0) = 0xFFFFFC7FEF180000
memcntl(0xFFFFFC7FEF160000, 4456, MC_ADVISE, MADV_WILLNEED, 0, 0) = 0
stat("/usr/gcc/10/lib/amd64/libdisasm.so.1", 0xFFFFFC7FFFDFBC80) Err#2 ENOENT
stat("/lib/64/libdisasm.so.1", 0xFFFFFC7FFFDFBC80) Err#2 ENOENT
stat("/usr/lib/64/libdisasm.so.1", 0xFFFFFC7FFFDFBC80) = 0
resolvepath("/usr/lib/64/libdisasm.so.1", "/usr/lib/amd64/libdisasm.so.1", 1023) = 29
open("/usr/lib/64/libdisasm.so.1", O_RDONLY)    = 3
mmapobj(3, MMOBJ_INTERPRET, 0xFFFFFC7FEF180D18, 0xFFFFFC7FFFDFBBDC, 0x00000000) = 0
close(3)                                        = 0
mmap(0x00000000, 4096, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_ANON, 4294967295, 0) = 0xFFFFFC7FEF1C0000
memcntl(0xFFFFFC7FEEF90000, 106784, MC_ADVISE, MADV_WILLNEED, 0, 0) = 0
stat("/usr/gcc/10/lib/amd64/libnsl.so.1", 0xFFFFFC7FFFDFB690) Err#2 ENOENT
stat("/usr/gcc/10/lib/amd64/libsocket.so.1", 0xFFFFFC7FFFDFB7C0) Err#2 ENOENT
mmap(0x00000000, 4096, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_ANON, 4294967295, 0) = 0xFFFFFC7FEF090000
mmap(0x00010000, 24576, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_ANON|MAP_ALIGN, -1, 0) = 0xFFFFFC7FEEF70000
getcontext(0xFFFFFC7FFFDFC3D0)
getrlimit(RLIMIT_STACK, 0xFFFFFC7FFFDFC3C0)     = 0
getpid()                                        = 11858 [11857]
lwp_private(0, 0, 0xFFFFFC7FEEF72A40)           = 0x00000000
getrandom("91F0\0ABB9 Warning: Undefined array key "TEST_PHP_EXECUTABLE" in /home/jakub/prog/php/master/ext/standard/tests/file/bug69442.phpt on line 16

write(1, "\n W a r n i n g :   U n".., 132)     = 132

access("/usr/bin/sh", X_OK)                     = 0

open("/dev/null", O_RDWR)                       = 4

fcntl(4, F_GETFD, 0xFFFFFE0BDD07CBE0)           = 0

pipe([5,6], 0)                                  = 0

access("/usr/bin/sh", X_OK)                     = 0

lwp_sigmask(SIG_SETMASK, 0xFFBFFEFF, 0xFFFFFFFF, 0x000003FF, 0x00000000) = 0x00000000 [0x00000000]

vforkx(FORK_NOSIGCHLD|FORK_WAITPID)             = 11859

lwp_sigmask(SIG_SETMASK, 0x00000000, 0x00000000, 0x00000000, 0x00000000) = 0xFFBFFEFF [0xFFFFFFFF]

close(6)                                        = 0

fcntl(5, F_DUP2FD, 0x00000004)                  = 4

close(5)                                        = 0

read(4, " s h :   - d :   n o t  ".., 8192)     = 46

read(4, 0xFFFFFC7FEE694000, 8192)               = 0

lseek(4, 0, SEEK_CUR)                           Err#29 ESPIPE

close(4)                                        = 0

waitid(P_PID, 11859, 0xFFFFFC7FFFDFA8F0, WEXITED|WTRAPPED) = 0

unlink("/var/tmp/bug69442a6htqkqpvjl8bLkaqkx")  = 0

--FILE--

write(1, " - - F I L E - -\n", 9)               = 9

open("/dev/ptmx", O_RDWR|O_NOCTTY)              = 4

ioctl(4, I_STR, 0xFFFFFC7FFFDFA8E0)             = 0

fstat(4, 0xFFFFFC7FFFDFA900)                    = 0

getuid()                                        = 0 [0]

getuid()                                        = 0 [0]

getpid()                                        = 11858 [11857]

open("/proc/11858/psinfo", O_RDONLY)            = 5

read(5, "\0\0\00201\0\0\0 R .\0\0".., 416)      = 416

close(5)                                        = 0

mmap(0x00010000, 65536, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_ANON|MAP_ALIGN, 4294967295, 0) = 0xFFFFFC7FEECB0000

getuid()                                        = 0 [0]

getuid()                                        = 0 [0]

open("/var/run/name_service_door", O_RDONLY)    = 5

fcntl(5, F_SETFD, FD_CLOEXEC)                   = 0

door_info(5, 0xFFFFFC7FEEE7DC00)                = 0

door_call(5, 0xFFFFFC7FFFDFA5E0)                = 0

ioctl(4, I_STR, 0xFFFFFC7FFFDFA9C0)             = 0

ioctl(4, I_STR, 0xFFFFFC7FFFDFA9D0)             = 0

ioctl(4, I_STR, 0xFFFFFC7FFFDFA8D0)             = 0

fstat(4, 0xFFFFFC7FFFDFA8F0)                    = 0

access("/dev/pts/3", F_OK)                      = 0

open("/dev/pts/3", O_RDONLY|O_NOCTTY)           = 6

ioctl(6, I_PUSH, "ptem")                        = 0

fcntl(6, F_DUPFD, 0x00000000)                   = 7

fcntl(4, F_DUPFD, 0x00000000)                   = 8

fcntl(6, F_DUPFD, 0x00000000)                   = 9

fcntl(4, F_DUPFD, 0x00000000)                   = 10

fcntl(6, F_DUPFD, 0x00000000)                   = 11

fcntl(4, F_DUPFD, 0x00000000)                   = 12

pipe([13,14], 0)                                = 0

fcntl(13, F_SETFD, FD_CLOEXEC)                  = 0

lwp_sigmask(SIG_SETMASK, 0xFFBFFEFF, 0xFFFFFFFF, 0x000003FF, 0x00000000) = 0x00000000 [0x00000000]

vforkx(0)                                       = 11860

lwp_sigmask(SIG_SETMASK, 0x00000000, 0x00000000, 0x00000000, 0x00000000) = 0xFFBFFEFF [0xFFFFFFFF]

close(7)                                        = 0

fstat(8, 0xFFFFFC7FEE68A3B8)                    = 0

close(9)                                        = 0

fstat(10, 0xFFFFFC7FEE68A498)                   = 0

close(11)                                       = 0

fstat(12, 0xFFFFFC7FEE68A578)                   = 0

close(14)                                       = 0

fstat(13, 0xFFFFFC7FEE68A658)                   = 0

close(4)                                        = 0

close(6)                                        = 0

read(8, 0xFFFFFC7FEE699000, 8192)               = 0

Received signal #18, SIGCLD, in read() [default]

siginfo: SIGCLD CLD_EXITED pid=11860 status=0x002A

read(8, 0xFFFFFC7FEE699000, 8192) (sleeping...)

^[[B^[[B^[[Aq^C    Received signal #2, SIGINT, in read() [caught]

PHP Version
PHP 8.3
Operating System

OmniOS r151054

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Rechercherichtung

Reproduziere den Hänger in t/standard/tests/file/bug69442.phpt auf Illumos und verwende die enthaltene truss-Ausgabe als Ausgangspunkt für die Untersuchung. Verfolge das von diesem Test erreichte PTY-Leseverhalten und überprüfe anschließend, dass der Test auf Illumos ohne Hänger abgeschlossen wird.

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Bewertung

Tech-Stack
c
Bereich
operating-systems
Issue-Typ
Bug
Schwierigkeit
4/5
Geschätzter Aufwand
3-5 Tage
Aktivitätsstatus
Veraltet
Klarheit
Muss geklärt werden
Anfängerfreundlichkeit
35/100

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