Mailing List Archive

#1805: Assert error in Tcheck()
---------------------------------+--------------------
Reporter: colas | Type: defect
Status: new | Priority: normal
Milestone: Varnish 4.0 release | Component: build
Version: unknown | Severity: normal
Keywords: |
---------------------------------+--------------------
Hy,

We use varnish-4.0.3 revision b8c4a34.
Started with all this params :

{{{
NFILES=131072
MEMLOCK=164000

DAEMON_OPTS="-a :80 \
-T 0.0.0.0:6083 \
-f /etc/varnish/cfvarnish.vcl \
-s file,/opt/cache/varnishstorage1.bin,35G \
-s file,/opt/cache/varnishstorage2.bin,35G \
-s file,/opt/cache/varnishstorage3.bin,35G \
-S /etc/varnish/secret \
-p http_gzip_support=on \
-p thread_pools=6 \
-p thread_pool_min=100 \
-p thread_pool_max=800 \
-p nuke_limit=500 \
-p cli_timeout=20 \
-l 160m"
}}}


Sometimes I get panic like this. This error could be very frequent, each
minutes for exemple.


{{{
varnish> panic.show
200
Last panic at: Thu, 22 Oct 2015 09:25:49 GMT
Assert error in Tcheck(), cache/cache.h line 1296:
Condition((t.b) != 0) not true.
thread = (cache-worker)
version = varnish-4.0.3 revision b8c4a34
ident =
Linux,3.2.0-4-amd64,x86_64,-sfile,-sfile,-sfile,-smalloc,-hcritbit,epoll
Backtrace:
0x435424: /usr/sbin/varnishd() [0x435424]
0x40e7e8: /usr/sbin/varnishd() [0x40e7e8]
0x429e33: /usr/sbin/varnishd() [0x429e33]
0x42c856: /usr/sbin/varnishd(http_FilterResp+0x86) [0x42c856]
0x420d3e: /usr/sbin/varnishd() [0x420d3e]
0x42142f: /usr/sbin/varnishd() [0x42142f]
0x438301: /usr/sbin/varnishd(Pool_Work_Thread+0x381) [0x438301]
0x44b29d: /usr/sbin/varnishd() [0x44b29d]
0x7f5fe03dbb50: /lib/x86_64-linux-gnu/libpthread.so.0(+0x6b50)
[0x7f5fe03dbb50]
0x7f5fe012595d: /lib/x86_64-linux-gnu/libc.so.6(clone+0x6d)
[0x7f5fe012595d]
busyobj = 0x7f456d889020 {
ws = 0x7f456d8890e0 { OVERFLOW
id = ""o",
{s,f,r,e} = {0x7f456d88b008,+57368,(nil),+57368},
},
refcnt = 2
retries = 3
failed = 0
state = 1
is_do_stream
is_do_pass
is_uncacheable
bodystatus = 0 (none),
},
http[bereq] = {
ws = 0x7f456d8890e0["o]
"GET",
"/aaaaaaaaaaaaaaaa.htm",
"HTTP/1.1",
"User-Agent: Mozilla/5.0 (Windows NT 5.1; rv:41.0) Gecko/20100101
Firefox/41.0",
"Accept:
text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8",
"Accept-Language: fr,fr-FR;q=0.8,en-US;q=0.5,en;q=0.3",
"Accept-Encoding: gzip, deflate",
"Referer: http://aaaaaaaaaaaaaaaaaaaaaaaaaaa",
"Cookie: md_users_res=1280x800; p=3; md_data=cham51;,
"Cache-Control: max-age=0",
"X-UA-Device: pc",
"Via: 1.1 varnish-v4",
"grace: none",
"X-Forwarded-For: xx.xxx.xx.xxx, xx.xxx.xx.xxx",
"Host: aaaaaaaaaaaaaaaaaa",
"X-Pass: Connected",
"X-Varnish: 655363",
"X-Varnish: 2326529",
"X-Varnish: 2326530",
},
http[beresp] = {
ws = 0x7f456d8890e0["o]
"HTTP/1.1",
"Backend fetch failed",
"Server: Varnish",
},
ws = 0x7f456d889270 {
id = "obj",
{s,f,r,e} = {0x7f55ebdb12c8,0x7f55ebdb12c8,(nil),+56},
},
objcore (FETCH) = 0x7f4578840020 {
refcnt = 2
flags = 0x106
objhead = 0x7f5fdf450500
}
obj (FETCH) = 0x7f55ebdb1180 {
vxid = 2149810179,
http[obj] = {
ws = 0x7f456d889270[obj]
"HTTP/1.1",
},
len = 0,
store = {
},
},
}
}}}


The error appears when I do a return(pass) in vcl_recv

File attache : the configuration vcl file

--
Ticket URL: <https://www.varnish-cache.org/trac/ticket/1805>
Varnish <https://varnish-cache.org/>
The Varnish HTTP Accelerator

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