Description:
------------
I've updated a script but PHP doesn't appear to detect this. Could it be a caching issue?
The 'update' is a bit weird, I've replaced phpMyAdmin by Adminer. 
/var/www/html/pma used to be a symlink to /srv/pma
Now it's a directory containing adminer's index.php: https://github.com/vrana/adminer/releases/download/v4.6.3/adminer-4.6.3-mysql-en.php

Web server is nginx.
The request is for /var/www/html/pma/index.php.

> getcwd("/usr/share/phpmyadmin", 4095)   = 22

Not sure why it does this.

> chdir("/var/www/html/pma")              = 0

OK

> stat("/srv/pma/libraries/common.inc.php", {st_mode=S_IFREG|0644, st_size=13837, ...}) = 0

Hmm, that's from the OLD script.



Test script:
---------------
https://github.com/vrana/adminer/releases/download/v4.6.3/adminer-4.6.3-mysql-en.php


Expected result:
----------------
200 OK

Actual result:
--------------
nginx log:
2018/11/19 11:25:41 [error] 12306#12306: *3 FastCGI sent in stderr: "PHP message: PHP Warning:  require_once(./libraries/vendor_config.php): failed to open stream: No such file or directory in /srv/pma/libraries/common.inc.php on line 74PHP message: PHP Fatal error:  require_once(): Failed opening required './libraries/vendor_config.php' (include_path='.:/usr/share/php') in /srv/pma/libraries/common.inc.php on line 74" while reading response header from upstream, client: 192.168.127.1, server: _, request: "GET /pma/ HTTP/1.1", upstream: "fastcgi://unix:/var/run/php/php7.3-fpm.sock:", host: "unstable"

# strace -s 999 -p 917
strace: Process 917 attached
accept(9, {sa_family=AF_UNIX}, [112->2]) = 4
poll([{fd=4, events=POLLIN}], 1, 5000)  = 1 ([{fd=4, revents=POLLIN}])
times({tms_utime=26, tms_stime=32, tms_cutime=0, tms_cstime=0}) = 1718394780
read(4, "\1\1\0\1\0\10\0\0", 8)         = 8
read(4, "\0\1\0\0\0\0\0\0", 8)          = 8
read(4, "\1\4\0\1\3\313\5\0", 8)        = 8
read(4, "\t\0PATH_INFO\17\33SCRIPT_FILENAME/var/www/html/pma/index.php\f\0QUERY_STRING\16\3REQUEST_METHODGET\f\0CONTENT_TYPE\16\0CONTENT_LENGTH\v\16SCRIPT_NAME/pma/index.php\v\5REQUEST_URI/pma/\f\16DOCUMENT_URI/pma/index.php\r\rDOCUMENT_ROOT/var/www/html\17\10SERVER_PROTOCOLHTTP/1.1\16\4REQUEST_SCHEMEhttp\21\7GATEWAY_INTERFACECGI/1.1\17\fSERVER_SOFTWAREnginx/1.14.1\v\rREMOTE_ADDR192.168.127.1\v\5REMOTE_PORT64518\v\17SERVER_ADDR192.168.127.135\v\2SERVER_PORT80\v\1SERVER_NAME_\17\3REDIRECT_STATUS200\t\10HTTP_HOSTunstable\17\nHTTP_CONNECTIONkeep-alive\22\tHTTP_CACHE_CONTROLmax-age=0\22\36HTTP_AUTHORIZATIONBasic cm9vdDp0ODFsZW8wQmNpbWk=\36\1HTTP_UPGRADE_INSECURE_REQUESTS1\17sHTTP_USER_AGENTMozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/70.0.3538.102 Safari/537.36\vUHTTP_ACCEPTtext/html,application/xhtml+xml,application/xml;q=0.9,image/webp,image/apng,*/*;q=0.8\24\rHTTP_ACCEPT_ENCODINGgzip, deflate\24\27HTTP_ACCEPT_LANGUAGEen-US,en;q=0.9,nl;q=0.8\v2HTTP_COOKIEpma_lang=en; phpMyAdmin=i7sk4evlhdcld3s7aun6mm7ds0\0\0\0\0\0", 976) = 976
read(4, "\1\4\0\1\0\0\0\0", 8)          = 8
lstat("/var/www/html/pma/index.php", {st_mode=S_IFREG|0644, st_size=208150, ...}) = 0
lstat("/var/www/html/pma", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
lstat("/var/www/html", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
lstat("/var/www", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
lstat("/var", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
rt_sigaction(SIGPROF, NULL, {sa_handler=0x5573360402a0, sa_mask=~[ILL TRAP ABRT BUS FPE KILL SEGV CONT STOP TSTP TTIN TTOU SYS RTMIN RT_1], sa_flags=SA_RESTORER|SA_SIGINFO, sa_restorer=0x7f18207b6fc0}, 8) = 0
rt_sigaction(SIGHUP, NULL, {sa_handler=0x5573360402a0, sa_mask=~[ILL TRAP ABRT BUS FPE KILL SEGV CONT STOP TSTP TTIN TTOU SYS RTMIN RT_1], sa_flags=SA_RESTORER|SA_SIGINFO, sa_restorer=0x7f18207b6fc0}, 8) = 0
rt_sigaction(SIGINT, NULL, {sa_handler=0x5573360402a0, sa_mask=~[ILL TRAP ABRT BUS FPE KILL SEGV CONT STOP TSTP TTIN TTOU SYS RTMIN RT_1], sa_flags=SA_RESTORER|SA_SIGINFO, sa_restorer=0x7f18207b6fc0}, 8) = 0
rt_sigaction(SIGQUIT, NULL, {sa_handler=0x5573360402a0, sa_mask=~[ILL TRAP ABRT BUS FPE KILL SEGV CONT STOP TSTP TTIN TTOU SYS RTMIN RT_1], sa_flags=SA_RESTORER|SA_SIGINFO, sa_restorer=0x7f18207b6fc0}, 8) = 0
rt_sigaction(SIGTERM, NULL, {sa_handler=0x5573360402a0, sa_mask=~[ILL TRAP ABRT BUS FPE KILL SEGV CONT STOP TSTP TTIN TTOU SYS RTMIN RT_1], sa_flags=SA_RESTORER|SA_SIGINFO, sa_restorer=0x7f18207b6fc0}, 8) = 0
rt_sigaction(SIGUSR1, NULL, {sa_handler=0x5573360402a0, sa_mask=~[ILL TRAP ABRT BUS FPE KILL SEGV CONT STOP TSTP TTIN TTOU SYS RTMIN RT_1], sa_flags=SA_RESTORER|SA_SIGINFO, sa_restorer=0x7f18207b6fc0}, 8) = 0
rt_sigaction(SIGUSR2, NULL, {sa_handler=0x5573360402a0, sa_mask=~[ILL TRAP ABRT BUS FPE KILL SEGV CONT STOP TSTP TTIN TTOU SYS RTMIN RT_1], sa_flags=SA_RESTORER|SA_SIGINFO, sa_restorer=0x7f18207b6fc0}, 8) = 0
setitimer(ITIMER_PROF, {it_interval={tv_sec=0, tv_usec=0}, it_value={tv_sec=60, tv_usec=0}}, NULL) = 0
rt_sigaction(SIGPROF, {sa_handler=0x5573360402a0, sa_mask=~[ILL TRAP ABRT BUS FPE KILL SEGV CONT STOP TSTP TTIN TTOU SYS RTMIN RT_1], sa_flags=SA_RESTORER|SA_SIGINFO, sa_restorer=0x7f18207b6fc0}, NULL, 8) = 0
rt_sigprocmask(SIG_UNBLOCK, [PROF], NULL, 8) = 0
getcwd("/usr/share/phpmyadmin", 4095)   = 22
chdir("/var/www/html/pma")              = 0
setitimer(ITIMER_PROF, {it_interval={tv_sec=0, tv_usec=0}, it_value={tv_sec=30, tv_usec=0}}, NULL) = 0
fcntl(3, F_SETLK, {l_type=F_RDLCK, l_whence=SEEK_SET, l_start=1, l_len=1}) = 0
stat("/srv/pma/index.php", {st_mode=S_IFREG|0644, st_size=20359, ...}) = 0
getcwd("/var/www/html/pma", 4096)       = 18
stat("/srv/pma/libraries/common.inc.php", {st_mode=S_IFREG|0644, st_size=13837, ...}) = 0
getcwd("/var/www/html/pma", 4096)       = 18
getcwd("/var/www/html/pma", 4096)       = 18
lstat("/var/www/html/pma/./libraries/vendor_config.php", 0x7fff12726dc0) = -1 ENOENT (No such file or directory)
getcwd("/var/www/html/pma", 4096)       = 18
lstat("/var/www/html/pma/./libraries/vendor_config.php", 0x7fff12726c60) = -1 ENOENT (No such file or directory)
getcwd("/var/www/html/pma", 4096)       = 18
lstat("/var/www/html/pma/./libraries/vendor_config.php", 0x7fff12727dd0) = -1 ENOENT (No such file or directory)
lstat("/var/www/html/pma/./libraries", 0x7fff12727c50) = -1 ENOENT (No such file or directory)
openat(AT_FDCWD, "/var/www/html/pma/libraries/vendor_config.php", O_RDONLY) = -1 ENOENT (No such file or directory)
write(2, "NOTICE: PHP message: PHP Warning:  require_once(./libraries/vendor_config.php): failed to open stream: No such file or directory in /srv/pma/libraries/common.inc.php on line 74\n", 177) = 177
write(2, "NOTICE: PHP message: PHP Fatal error:  require_once(): Failed opening required './libraries/vendor_config.php' (include_path='.:/usr/share/php') in /srv/pma/libraries/common.inc.php on line 74\n", 193) = 193
chdir("/usr/share/phpmyadmin")          = 0
times({tms_utime=26, tms_stime=32, tms_cutime=0, tms_cstime=0}) = 1718394782
write(2, "\0", 1)                       = 1
setitimer(ITIMER_PROF, {it_interval={tv_sec=0, tv_usec=0}, it_value={tv_sec=0, tv_usec=0}}, NULL) = 0
fcntl(3, F_SETLK, {l_type=F_UNLCK, l_whence=SEEK_SET, l_start=0, l_len=0}) = 0
write(4, "\1\7\0\1\1`\0\0PHP message: PHP Warning:  require_once(./libraries/vendor_config.php): failed to open stream: No such file or directory in /srv/pma/libraries/common.inc.php on line 74PHP message: PHP Fatal error:  require_once(): Failed opening required './libraries/vendor_config.php' (include_path='.:/usr/share/php') in /srv/pma/libraries/common.inc.php on line 74\1\6\0\1\0M\3\0Status: 500 Internal Server Error\r\nContent-type: text/html; charset=UTF-8\r\n\r\n\0\0\0\1\3\0\1\0\10\0\0\0\0\0\0\0HTG", 464) = 464
shutdown(4, SHUT_WR)                    = 0
recvfrom(4, "\1\5\0\1\0\0\0\0", 8, 0, NULL, NULL) = 8
recvfrom(4, "", 8, 0, NULL, NULL)       = 0
close(4)                                = 0
setitimer(ITIMER_PROF, {it_interval={tv_sec=0, tv_usec=0}, it_value={tv_sec=0, tv_usec=0}}, NULL) = 0
accept(9,