--- Begin Message ---
- To: Debian Bug Tracking System <submit@bugs.debian.org>
- Subject: lighttpd: segfault / error 4; primarily when accessing fastcgi/php
- From: Jon Daley <debian@jon.limedaley.com>
- Date: Fri, 31 Aug 2018 06:10:42 -0400
- Message-id: <153571024243.13747.18257614075600086235.reportbug@tangelo.limedaley.com>
Package: lighttpd
Version: 1.4.49-1.1
Severity: important
I upgraded today:
[UPGRADE] lighttpd:amd64 1.4.45-1 -> 1.4.49-1.1
[UPGRADE] lighttpd-mod-magnet:amd64 1.4.45-1 -> 1.4.49-1.1
and now I get a segfault within 30 seconds of startup. When I run lighttpd via
"strace lighttpd -D -f ..." it appears to crash when accessing php via fastcgi,
though I think it can access simple PHP scripts without crashing, so perhaps it
is on the php side, though when I downgrade back to 1.4.45, everything is fine.
The exact error message is (one per server instantiation):
Aug 31 05:22:22 tangelo kernel: [10595636.459818] lighttpd[8657]: segfault at b0 ip 000055a286a8919a sp 00007ffdee39f000 error 4 in lighttpd[55a286a64000+46000]
Aug 31 05:23:27 tangelo kernel: [10595701.465898] lighttpd[8868]: segfault at b0 ip 0000563eb738819a sp 00007ffc7b968290 error 4 in lighttpd[563eb7363000+46000]
Aug 31 05:27:19 tangelo kernel: [10595932.776978] lighttpd[9176]: segfault at b0 ip 000055c975b0619a sp 00007ffef9652fe0 error 4 in lighttpd[55c975ae1000+46000]
Aug 31 05:34:10 tangelo kernel: [10596343.912608] lighttpd[10534]: segfault at b0 ip 0000556ff121c19a sp 00007ffd94a20570 error 4 in lighttpd[556ff11f7000+46000]
The access is not logged in /var/log/lighttpd/, and no errors reported there, just the segfault in /var/log/messages.
Any ideas about where I should look?
I'm using PHP 5.6.22-2 (cgi-fcgi), so perhaps that just isn't supported any more.
-- System Information:
Debian Release: buster/sid
APT prefers testing
APT policy: (500, 'testing')
Architecture: amd64 (x86_64)
Kernel: Linux 4.13.0-1-amd64 (SMP w/12 CPU cores)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8), LANGUAGE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: sysvinit (via /sbin/init)
Versions of packages lighttpd depends on:
ii init-system-helpers 1.54
ii libattr1 1:2.4.47-2+b2
ii libbz2-1.0 1.0.6-9
ii libc6 2.27-5
ii libgamin0 [libfam0] 0.1.10-5+b1
ii libpcre3 2:8.39-11
ii libssl1.1 1.1.0h-4
ii lsb-base 9.20170808
ii mime-support 3.61
ii zlib1g 1:1.2.11.dfsg-1
Versions of packages lighttpd recommends:
ii spawn-fcgi 1.6.4-2
Versions of packages lighttpd suggests:
pn apache2-utils <none>
pn lighttpd-doc <none>
ii openssl 1.1.0h-4
ii php5-cgi 5.6.22+dfsg-2
pn rrdtool <none>
-- Configuration Files:
/etc/lighttpd/conf-available/10-accesslog.conf changed:
server.modules += ( "mod_accesslog" )
/etc/lighttpd/conf-available/10-cgi.conf changed:
server.modules += ( "mod_cgi" )
$HTTP["url"] =~ "^/cgi-bin/" {
cgi.assign = ( ".cgi" => "" )
}
/etc/lighttpd/conf-available/10-evasive.conf changed:
server.modules += ( "mod_evasive" )
evasive.max-conns-per-ip = 150
/etc/lighttpd/conf-available/10-fastcgi.conf changed:
server.modules += ( "mod_fastcgi" )
fastcgi.server = ( ".php" =>
((
"bin-path" => "/usr/bin/php-cgi",
"socket" => "/tmp/php.socket",
"max-procs" => 5,
"idle-timeout" => 5,
"bin-environment" => (
"PHP_FCGI_CHILDREN" => "30",
"PHP_FCGI_MAX_REQUESTS" => "500"
),
"bin-copy-environment" => (
"PATH", "SHELL", "USER"
),
"broken-scriptfilename" => "enable"
))
)
/etc/lighttpd/lighttpd.conf changed:
server.modules = (
"mod_access",
"mod_alias",
"mod_compress",
"mod_rewrite",
"mod_redirect",
"mod_expire",
)
include_shell "/usr/share/lighttpd/include-conf-enabled.pl"
server.max-keep-alive-requests = 32
server.max-keep-alive-idle = 5
server.max-read-idle = 30
server.max-write-idle = 30
server.max-fds = 2048
server.max-connections = 1024
server.event-handler = "linux-sysepoll"
server.network-backend = "linux-sendfile"
server.stat-cache-engine = "fam"
-- no debconf information
--- End Message ---