maintainer-feedback requested: [Bug 247487] www/apache24 segfault when reloading jailed

[bugzilla-noreply at freebsd.org]

Bugzilla Automation <bugzilla at FreeBSD.org> has asked freebsd-apache (Nobody)
<apache at FreeBSD.org> for maintainer-feedback:
Bug 247487: www/apache24 segfault when reloading jailed
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=247487



--- Description ---
Hello.
After upgrade from php71 to php74 apache started to crashing with coredump when
recieved -HUP (so after every logrotate).
This happens only when running in jail, after upgrading on physical machine
everything is fine. 
Same configuration with php71 is working fine.
Bug is repeatable everytime I invoke `service apache24 reload`

What can I do to trace source of problem?

[root at a24 /]# uname -a
FreeBSD a24.fsi.pl 12.1-RELEASE-p6 FreeBSD 12.1-RELEASE-p6 GENERIC  amd64
[root at a24 /]# httpd -v
Server version: Apache/2.4.43 (FreeBSD)
Server built:	unknown
[root at a24 /]# php --version
PHP 7.4.7 (cli) (built: Jun 16 2020 01:25:10) ( NTS )
Copyright (c) The PHP Group
Zend Engine v3.4.0, Copyright (c) Zend Technologies
    with Zend OPcache v7.4.7, Copyright (c), by Zend Technologies

backtrace of core:
(gdb) bt
#0  0x0000000041993b40 in ?? () from /usr/local/lib/libnghttp2.so.14
#1  0x000000004287cbe6 in ?? () from /usr/local/libexec/apache24/libphp7.so
#2  0x000000004286122d in zend_llist_apply_with_del () from
/usr/local/libexec/apache24/libphp7.so
#3  0x000000004287cbc7 in ?? () from /usr/local/libexec/apache24/libphp7.so
#4  0x00000000427f5268 in php_module_startup () from
/usr/local/libexec/apache24/libphp7.so
#5  0x000000004290a405 in ?? () from /usr/local/libexec/apache24/libphp7.so
#6  0x0000000042909c56 in ?? () from /usr/local/libexec/apache24/libphp7.so
#7  0x0000000000259a6f in ap_run_post_config ()
#8  0x00000000002588b6 in main ()
(gdb)

truss output just before crash:
25003: open("/usr/local/etc/browscap.ini",O_RDONLY,0666) = 10 (0xa)
25003: ioctl(10,TIOCGETA,0x7fffffffe1a0)	 ERR#25 'Inappropriate ioctl
for device'
25003: fstat(10,{ mode=-rw-r--r-- ,inode=1691563,size=415227,blksize=32768 }) =
0 (0x0)
25003: fstat(10,{ mode=-rw-r--r-- ,inode=1691563,size=415227,blksize=32768 }) =
0 (0x0)
25003: read(10,";;; Provided courtesy of http://"...,32768) = 32768 (0x8000)
25003: read(10,""\r\nisBanned=true\r\n\r\n[Searc"...,32768) = 32768 (0x8000)
25003: read(10,"/www.inclue.com; graeme at inclue.c"...,32768) = 32768 (0x8000)
25003: read(10,"Systems\r\n\r\n[Blue Coat System"...,32768) = 32768 (0x8000)
25003: read(10,"/* (KHTML, like Gecko) *Iron/11."...,32768) = 32768 (0x8000)
25003: read(10,")*Version/* Mobile/* Safari/*]\r"...,32768) = 32768 (0x8000)
25003: read(10,"e\r\nTables=true\r\n\r\n[ELinks "...,32768) = 32768 (0x8000)
25003: read(10,"scape 5.1]\r\nParent=DefaultProp"...,32768) = 32768 (0x8000)
25003: read(10,"indows NT 6.1*)*]\r\nParent=Oper"...,32768) = 32768 (0x8000)
25003: read(10,"*Opera?4.*]\r\nParent=Opera 4.00"...,32768) = 32768 (0x8000)
25003: read(10,"indows XP*)*]\r\nParent=Opera Ge"...,32768) = 32768 (0x8000)
25003: read(10,"*) Gecko/* Firefox/3.1*]\r\nPare"...,32768) = 32768 (0x8000)
25003: read(10,"CssVersion=2\r\nAolVersion=9\r\n"...,32768) = 22011 (0x55fb)
25003: clock_gettime(4,{ 258339.447697735 })	 = 0 (0x0)
25003: clock_gettime(4,{ 258339.447764503 })	 = 0 (0x0)
25003: mmap(0x0,659456,PROT_READ|PROT_WRITE,MAP_PRIVATE|MAP_ANON,-1,0x0) =
1144061952 (0x44310000)
25003: close(10)				 = 0 (0x0)
25003: __sysctl(0x7fffffffe3a8,0x2,0x7fffffffe394,0x7fffffffe398,0x0,0x0) = 0
(0x0)
25003: issetugid()				 = 0 (0x0)
25003: open("/etc/ssl/openssl.cnf",O_RDONLY,0666) = 10 (0xa)
25003: fstat(10,{ mode=-rw-r--r-- ,inode=81460552,size=11000,blksize=32768 }) =
0 (0x0)
25003: read(10,"# $FreeBSD: releng/12.1/crypto/o"...,32768) = 11000 (0x2af8)
25003: read(10,0x41e07c40,32768)		 = 0 (0x0)
25003: close(10)				 = 0 (0x0)
25003: fstatat(AT_FDCWD,"/etc/cram-md5.pwd",0x7fffffffe2f0,0x0) ERR#2 'No such
file or directory'
25003: fstatat(AT_FDCWD,"/dev/urandom",{ mode=crw-r--r--
,inode=8,size=0,blksize=4096 },0x0) = 0 (0x0)
25003: SIGNAL 11 (SIGSEGV) code=SEGV_ACCERR trapno=12 addr=0x4228cf89
25003: process killed, signal = 11