I am running Varnish trunk/2537 on FreeBSD/amd64 7.0-RC1 (with SCHED_ULE), on Intel hardware. After running for around one hour, I got a crash:
Child said (2, 50412): <<Assert error in EXP_Touch(), cache_expire.c line 189:>>
Child said (2, 50412): << Condition((i) == 0 || errno == EBUSY) not true.>>
Child said (2, 50412): << errno = 32 (Broken pipe)>>
Cache child died pid=50412 status=0x86
Backtrace:
(gdb) bt
#0 0x0000000800d17fec in thr_kill () from /lib/libc.so.7
#1 0x0000000800da1c5b in abort () from /lib/libc.so.7
#2 0x0000000800674f92 in lbv_assert (func=Could not find the frame base for "lbv_assert".
) at assert.c:65
#3 0x000000000040fbbd in EXP_Touch (o=0x1489d24000, now=1203931145.6359677)
at cache_expire.c:189
#4 0x000000000040c058 in cnt_deliver (sp=0x468c03d008) at cache_center.c:156
#5 0x000000000040e664 in CNT_Session (sp=0x468c03d008) at steps.h:42
#6 0x000000000041949d in wrk_do_one (w=0x7ffffd7ecae0) at cache_pool.c:194
#7 0x0000000000419caa in wrk_thread (priv=0x800f11220) at cache_pool.c:248
#8 0x0000000800a9fa88 in pthread_getprio () from /lib/libthr.so.3
#9 0x00007ffffd5ed000 in ?? ()
Cannot access memory at address 0x7ffffd7ed000
(gdb) frame 3
#3 0x000000000040fbbd in EXP_Touch (o=0x1489d24000, now=1203931145.6359677)
at cache_expire.c:189
189 TRYLOCK(&exp_mtx, i);
(gdb) print i
$1 = 16
(gdb) print exp_mtx
$2 = 0x806276c90
(gdb) print *exp_mtx
$3 = <incomplete type>
(gdb) print errno
$4 = 0
My VCL:
backend default {
set .host = "192.168.0.3";
set .port = "80";
}
acl purge {
"192.168.0.4"/32;
}
sub vcl_recv {
set req.grace = 5m;
if ((req.http.host ~ "^(cache.finn.no|finn.no|www.finn.no)$") || (req.http.host == "banner.finn.no" && req.url ~ "^/(jsp2|finn/gojsp|daily|board|auximg/papirfly|finn/cacheable|crossdomain.xml)")) {
if (req.request == "GET" || req.request == "HEAD") {
lookup;
} elsif (req.request == "PURGE") {
if (!client.ip ~ purge) {
error 405 "Not allowed.";
}
lookup;
} else {
pipe;
}
} else {
error 403 "Access denied. Contact cacheadmin@finn.no if you have problems.";
}
}
sub vcl_miss {
if (req.request == "PURGE") {
error 404 "Not in cache.";
} else {
fetch;
}
}
sub vcl_hit {
if (req.request == "PURGE") {
set obj.ttl = 0s;
error 200 "Purged.";
} else {
if (!obj.cacheable) {
pass;
} else {
deliver;
}
}
sub vcl_fetch {
set obj.grace = 5m;
if (!obj.valid) {
error obj.status;
}
if (obj.ttl < 86400s) {
set obj.ttl = 604800s;
}
if (obj.http.Cookie) {
remove obj.http.Cookie;
}
if (obj.http.Set-Cookie) {
remove obj.http.Set-Cookie;
}
insert;
}
