It is possible Varnish is trying to fetch a very large object (hundreds of Mb,
maybe >1Gb) and it tries to store it in the cache, failing because of lack of
memory.
At least that is what it looks like to me.
Traian
________________________________________
Hi All
We are running varnish on a 32-bit centos 5 box and we have noticed that
sometimes the child process of varnishd will restart automatically.
/var/log/messages shows the following error message:
varnishd[12707]: Child (12708) died signal=6
varnishd[12707]: Child (12708) Panic message: Missing errorhandling code in
sma_alloc(), storage_malloc.c line 81: Condition((sma->s.ptr) != 0) not
true.errno = 12 (Cannot allocate memory) thread = (cache-worker) ident =
Linux,2.6.18-194.8.1.el5PAE,i686,-smalloc,-hcritbit,epoll Backtrace:
0x806cb6c: varnishd [0x806cb6c] 0x8088047: varnishd [0x8088047] 0x8085b3a:
varnishd(STV_alloc+0xda) [0x8085b3a] 0x8063a91: varnishd(FetchBody+0x7c1)
[0x8063a91] 0x8059f87: varnishd [0x8059f87] 0x805b93a:
varnishd(CNT_Session+0x44a) [0x805b93a] 0x806f5ef: varnishd [0x806f5ef]
0x806e671: varnishd [0x806e671] 0x806eb6f: varnishd [0x806eb6f] 0xc65832:
/lib/libpthread.so.0 [0xc65832] sp = 0xb7ec5004 { fd = 15, id = 15, xid =
608646521, client = 127.0.0.1:57125<http://127.0.0.1:57125>, step =
STP_FETCH, handling = deliver, err_code = 200, err_reason = (null),
restarts = 0, esis = 0 ws = 0xb7ec504c { id = "sess", {s,f,r,e} =
{0xb7ec57dc,+956,(nil),+16384}, }, http[req] = { ws = 0x
varnishd[12707]: child (32242) Started
varnishd[12707]: Child (32242) said
varnishd[12707]: Child (32242) said Child starts
Varnishd was started with option "malloc,1.5G" and it runs without any problem
for hours before the child process restarts. When the child process restarts,
the system still have about 1.5G free memory so this is not a out of memory
issue.
Does anybody know how to solve this?
Thanks,
Vincent
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