varnish-bugs at varnish-cache
Aug 4, 2011, 7:07 AM
Post #4 of 13
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#971: Broken DNS director
-------------------+--------------------------------------------------------
Reporter: rdvn | Type: defect
Status: new | Priority: normal
Milestone: | Component: build
Version: 3.0.0 | Severity: critical
Keywords: |
-------------------+--------------------------------------------------------
Comment(by rdvn):
I used this VCL for testing/generating the core dump. But first I found
this out I was using my production VCL, which was working OK on Varnish
2.1.3. Of course, after making needed modifications.
It segfaults right after trying to use VCL. Attaching strace output.
{{{
backend default {
.host = "127.0.0.1";
.port = "80";
}
director test dns {
.list = {
.port = "80";
"192.168.16.128"/25;
}
.ttl = 15m;
}
sub vcl_recv {
if (req.restarts == 0) {
if (req.http.x-forwarded-for) {
set req.http.X-Forwarded-For =
req.http.X-Forwarded-For + ", " + client.ip;
} else {
set req.http.X-Forwarded-For = client.ip;
}
}
set req.backend = test;
if (req.request != "GET" &&
req.request != "HEAD" &&
req.request != "PUT" &&
req.request != "POST" &&
req.request != "TRACE" &&
req.request != "OPTIONS" &&
req.request != "DELETE") {
/* Non-RFC2616 or CONNECT which is weird. */
return (pipe);
}
if (req.request != "GET" && req.request != "HEAD") {
/* We only deal with GET and HEAD by default */
return (pass);
}
if (req.http.Authorization || req.http.Cookie) {
/* Not cacheable by default */
return (pass);
}
return (lookup);
}
}}}
{{{
[pid 1619] writev(13, [.{"200 36 \n", 13}, {"Loaded
\"./vcl.bDmyBp0R.so\" as \"b"..., 36}, {"\n", 1}], 3 <unfinished ...>
[pid 1621] set_robust_list(0x7fd42bdf19e0, 0x18) = 0
[pid 1623] set_robust_list(0x7fd42a7fe9e0, 0x18) = 0
[pid 1623] nanosleep({180, 0}, <unfinished ...>
[pid 1622] set_robust_list(0x7fd42b1ff9e0, 0x18) = 0
[pid 1622] nanosleep({1, 0}, <unfinished ...>
[pid 1624] set_robust_list(0x7fd429dfd9e0, 0x18) = 0
[pid 1624] nanosleep({0, 10000000}, <unfinished ...>
[pid 1596] <... poll resumed> ) = 1 ([{fd=12, revents=POLLIN}])
[pid 1596] read(12, "200 36 \n", 13) = 13
[pid 1596] poll([{fd=12, events=POLLIN}], 1, 10000) = 1 ([{fd=12,
revents=POLLIN}])
[pid 1596] read(12, "Loaded \"./vcl.bDmyBp0R.so\" as \"b"..., 37) = 37
[pid 1596] write(11, "vcl.use \"boot\"\n", 15) = 15
[pid 1596] poll([{fd=12, events=POLLIN}], 1, 10000 <unfinished ...>
[pid 1619] <... writev resumed> ) = 50
[pid 1619] poll([{fd=10, events=POLLIN}], 1, -1) = 1 ([{fd=10,
revents=POLLIN}])
[pid 1619] read(10, "vcl.use \"boot\"\n", 8191) = 15
[pid 1619] --- SIGSEGV (Segmentation fault) @ 0 (0) ---
}}}
--
Ticket URL: <http://varnish-cache.org/trac/ticket/971#comment:3>
Varnish <http://varnish-cache.org/>
The Varnish HTTP Accelerator
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