Varnishtop hangs (again)

[duja at torlen.net]

When I run varnishtop with "varnishtop -i BackendReuse" it hangs and I cant do anything to return from the program. CTRL-C gives me nothing :(

It hangs exactly when the first request hits the server. Here is the strace on varnishtop when the request hits:

rt_sigaction(SIGTSTP, {SIG_IGN}, {0xb7ed61a0, [], SA_RESTART}, 8) = 0
poll([{fd=0, events=POLLIN}], 1, 0)     = 0
poll([{fd=0, events=POLLIN}], 1, 0)     = 0
rt_sigaction(SIGTSTP, {0xb7ed61a0, [], SA_RESTART}, NULL, 8) = 0
gettimeofday({1207662136, 378806}, NULL) = 0
poll([{fd=0, events=POLLIN}], 1, 1000)  = 0
gettimeofday({1207662137, 379658}, NULL) = 0
time(NULL)                              = 1207662137
rt_sigaction(SIGTSTP, {SIG_IGN}, {0xb7ed61a0, [], SA_RESTART}, 8) = 0
poll([{fd=0, events=POLLIN}], 1, 0)     = 0
poll([{fd=0, events=POLLIN}], 1, 0)     = 0
rt_sigaction(SIGTSTP, {0xb7ed61a0, [], SA_RESTART}, NULL, 8) = 0
gettimeofday({1207662137, 379837}, NULL) = 0
poll([{fd=0, events=POLLIN}], 1, 1000)  = 0
gettimeofday({1207662138, 380725}, NULL) = 0
time(NULL)                              = 1207662138
rt_sigaction(SIGTSTP, {SIG_IGN}, {0xb7ed61a0, [], SA_RESTART}, 8) = 0
poll([{fd=0, events=POLLIN}], 1, 0)     = 0
poll([{fd=0, events=POLLIN}], 1, 0)     = 0
rt_sigaction(SIGTSTP, {0xb7ed61a0, [], SA_RESTART}, NULL, 8) = 0
gettimeofday({1207662138, 380904}, NULL) = 0
poll([{fd=0, events=POLLIN}], 1, 1000)  = 0
gettimeofday({1207662139, 384322}, NULL) = 0
futex(0x804af0c, FUTEX_WAIT, 2, NULL

Varnishstat:
client_conn                19         0.02 Client connections accepted
client_req                123         0.14 Client requests received
cache_hit                   0         0.00 Cache hits
cache_hitpass               0         0.00 Cache hits for pass
cache_miss                100         0.12 Cache misses
backend_conn              123         0.14 Backend connections success
backend_fail                0         0.00 Backend connections failures
backend_reuse             115         0.13 Backend connections reuses
backend_recycle           123         0.14 Backend connections recycles
backend_unused              0         0.00 Backend connections unused

# uname -a
Linux varnish06 2.6.18-6-686 #1 SMP Sun Feb 10 22:11:31 UTC 2008 i686 GNU/Linux
Debian Etch

I have reported this before and I know there is a ticket for the problem. 

http://varnish.projects.linpro.no/ticket/217

Hope you'll get some where with the info.

// Erik