varnishtop hangs

[Erik]

I do the following in varnishtop: varnishtop -i TxURL

after some request it hangs and from strace I get:

rt_sigaction(SIGTSTP, {SIG_IGN}, {0xb7f86fe0, [], SA_RESTART}, 8) = 0
select(1, [0], NULL, NULL, {0, 0})      = 0 (Timeout)
select(1, [0], NULL, NULL, {0, 0})      = 0 (Timeout)
rt_sigaction(SIGTSTP, {0xb7f86fe0, [], SA_RESTART}, NULL, 8) = 0
gettimeofday({1199697921, 208862}, NULL) = 0
select(1, [0], NULL, NULL, {1, 0})      = 0 (Timeout)
gettimeofday({1199697922, 208654}, NULL) = 0
time(NULL)                              = 1199697922
rt_sigaction(SIGTSTP, {SIG_IGN}, {0xb7f86fe0, [], SA_RESTART}, 8) = 0
select(1, [0], NULL, NULL, {0, 0})      = 0 (Timeout)
select(1, [0], NULL, NULL, {0, 0})      = 0 (Timeout)
rt_sigaction(SIGTSTP, {0xb7f86fe0, [], SA_RESTART}, NULL, 8) = 0
gettimeofday({1199697922, 208821}, NULL) = 0
select(1, [0], NULL, NULL, {1, 0})      = 0 (Timeout)
gettimeofday({1199697923, 208618}, NULL) = 0
time(NULL)                              = 1199697923
rt_sigaction(SIGTSTP, {SIG_IGN}, {0xb7f86fe0, [], SA_RESTART}, 8) = 0
select(1, [0], NULL, NULL, {0, 0})      = 0 (Timeout)
select(1, [0], NULL, NULL, {0, 0})      = 0 (Timeout)
rt_sigaction(SIGTSTP, {0xb7f86fe0, [], SA_RESTART}, NULL, 8) = 0
gettimeofday({1199697923, 208781}, NULL) = 0
select(1, [0], NULL, NULL, {1, 0})      = 0 (Timeout)
gettimeofday({1199697924, 208580}, NULL) = 0
time(NULL)                              = 1199697924
rt_sigaction(SIGTSTP, {SIG_IGN}, {0xb7f86fe0, [], SA_RESTART}, 8) = 0
select(1, [0], NULL, NULL, {0, 0})      = 0 (Timeout)
select(1, [0], NULL, NULL, {0, 0})      = 0 (Timeout)
rt_sigaction(SIGTSTP, {0xb7f86fe0, [], SA_RESTART}, NULL, 8) = 0
gettimeofday({1199697924, 208748}, NULL) = 0
select(1, [0], NULL, NULL, {1, 0})      = 0 (Timeout)
gettimeofday({1199697925, 208553}, NULL) = 0
time(NULL)                              = 1199697925
rt_sigaction(SIGTSTP, {SIG_IGN}, {0xb7f86fe0, [], SA_RESTART}, 8) = 0
select(1, [0], NULL, NULL, {0, 0})      = 0 (Timeout)
select(1, [0], NULL, NULL, {0, 0})      = 0 (Timeout)
select(1, [0], NULL, NULL, {0, 0})      = 0 (Timeout)
select(1, [0], NULL, NULL, {0, 0})      = 0 (Timeout)
write(1, "\01013\33[3;6H1.00 TxURL     /\33[4;6H1"..., 584) = 584
rt_sigaction(SIGTSTP, {0xb7f86fe0, [], SA_RESTART}, NULL, 8) = 0
gettimeofday({1199697925, 209013}, NULL) = 0
select(1, [0], NULL, NULL, {1, 0})      = 0 (Timeout)
gettimeofday({1199697926, 224518}, NULL) = 0
futex(0x804af08, FUTEX_WAIT, 2, NULL

# varnishd -V
varnishd (varnish-1.1.2)
Copyright (c) 2006-2007 Linpro AS / Verdens Gang AS

Running ubuntu
# uname -a 
Linux web1 2.6.20-16-generic #2 SMP Sun Sep 23 19:50:39 UTC 2007 i686 GNU/Linux

Im using varnish from the .tar.gz package on SF. 

Thank you
Erik