Hi Christopher, This certainly looks like a bug.
Could you please report this in https://github.com/varnishcache/varnish-cache/issues ? Please include as much detail as possible, and the full panic output from 'varnishadm panic.show'. On Thu, Mar 15, 2018 at 8:01 AM, Christopher Beppler <[email protected]> wrote: > Hi, > > I am new to this list and I hope that someone here can shed some light > on my issue. I have googled the error message but didn't find anything > related to VPX_Send_Proxy(). > > My setup is as follows: > > Haproxy --(proxy-v2)-> varnish --(proxy-v1)-> nginx -> webapps > > I am running FreeBSD 11.1-RELEASE-p4 and varnish5-5.2.1 from ports. > > Since a few days, I get the following error message. Not all the time, > but always around the same time. So it might be an issue related to a > certain load: > > Mar 14 23:44:04 varnish varnishd[15349]: Child (24895) Panic at: Wed, 14 > Mar 2018 22:44:04 GMT Assert error in VPX_Send_Proxy(), > proxy/cache_proxy_proto.c line 425: Condition((sp) != NULL) not true. > version = varnish-5.2.1 revision NOGIT, vrt api = 6.1 ident = > FreeBSD,11.1-RELEASE-p4,amd64,-junix,-sfile,-smalloc,-hcritbit,kqueue > now = 4710006.893845 (mono), 1521067443.500616 (real) Backtrace: > 0x437e60: <PAN_Init+0x2f0> at /usr/local/sbin/varnishd 0x47e0bc: > <VAS_Fail+0x6c> at /usr/local/sbin/varnishd 0x46fb96: > <VPX_Send_Proxy+0x356> at /usr/local/sbin/varnishd 0x4173bf: > <VBE_fill_director+0x128f> at /usr/local/sbin/varnishd 0x4162f7: > <VBE_fill_director+0x1c7> at /usr/local/sbin/varnishd 0x43d184: > <CNT_Request+0x1cf4> at /usr/local/sbin/varnishd 0x458841: > <V1F_FetchRespHdr+0xd81> at /usr/local/sbin/varnishd 0x451f96: > <pool_herder+0x986> at /usr/local/sbin/varnishd 0x451d15: > <pool_herder+0x705> at /usr/local/sbin/varnishd thread = (cache-worker) > thr.req = 0x80f902ba0 { vxid = 98306, transport > > This results in a client disconnect. If I retry loading the page it > sometimes work. > > If I am not mistaken, varnish kills a process/thread if an assertion > fails and spawns a new one to stay in a clean state. That's why I don't > have to restart anything. After some time, it seems to recover but > during the time this error appears the page is almost unusable. > > Why question would now be what I can do to resolve that and what it > means that sp == NULL at this particular assertion? > > If you need more logs or details, I am happy to provide them. > > Thanks in advance, > Christopher > _______________________________________________ > varnish-misc mailing list > [email protected] > https://www.varnish-cache.org/lists/mailman/listinfo/varnish-misc > -- Dag Haavi Finstad Software Developer | Varnish Software Mobile: +47 476 64 134 We Make Websites Fly!
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