Re: [BProc] Re: bpslave dies

[Nicholas H. <he...@se...>]

More info -- 

I get a ping timeout on the master to node30 -- so I ssh node30 and see
what is going on. bpslave is still running 2 threads, and there is one
processes running under bproc. If I run strace on the lower of the 2
processes -- this is what I get. After strace exits, the bpslave process
is dead.

< from ps auxwwww >
root       577  0.0  0.0  1416  532 ?        T    14:46   0:01 /usr/sbin/bpslave -r 192.168.0.223 2223

[root@node30 root]# strace -p 577
--- SIGSTOP (Stopped (signal)) ---
wait4(-1, NULL, WNOHANG, NULL)          = 0
time(NULL)                              = 1049833543
time(NULL)                              = 1049833543
select(5, [3 4], [3], NULL, {15, 0})    = 3 (in [3 4], out [3], left {15, 0})
read(4, "\323B\0\0\17\0\1\3\276\f\0\0\276\f\0\0\0\0\0\0\0\0\0\0"..., 152) = 152
write(3, "\0\0\0\0\27\0\2\2\0\0\0\0\377\377\377\377\0\0\0\0\4\20"..., 152) = 152
write(3, "\323B\0\0\17\0\1\3\276\f\0\0\276\f\0\0\0\0\0\0\0\0\0\0"..., 152) = 152
read(3, "\270\341\2\0\4\0\2\1\377\377\377\377\271\f\0\0\0\0\0\0"..., 152) = 152
time(NULL)                              = 1049833543
wait4(-1, NULL, WNOHANG, NULL)          = 0
time(NULL)                              = 1049833543
time(NULL)                              = 1049833543
select(5, [3 4], [4], NULL, {15, 0})    = 3 (in [3 4], out [4], left {15, 0})
write(4, "\270\341\2\0\4\0\2\1\377\377\377\377\271\f\0\0\0\0\0\0"..., 152) = 152
read(4, "\324B\0\0\r\0\1\3\275\f\0\0\275\f\0\0\0\0\0\0\0\0\0\0\0"..., 152) = 152
read(3, "\271\341\2\0\4\0\2\1\377\377\377\377\271\f\0\0\0\0\0\0"..., 152) = 152
time(NULL)                              = 1049833543
wait4(-1, NULL, WNOHANG, NULL)          = 0
time(NULL)                              = 1049833543
time(NULL)                              = 1049833543
select(5, [3 4], [3 4], NULL, {15, 0})  = 4 (in [3 4], out [3 4], left {15, 0})
write(4, "\271\341\2\0\4\0\2\1\377\377\377\377\271\f\0\0\0\0\0\0"..., 152) = 152
read(4, "\325B\0\0\17\0\1\3\275\f\0\0\275\f\0\0\0\0\0\0\0\0\0\0"..., 152) = 152
write(3, "\324B\0\0\r\0\1\3\275\f\0\0\275\f\0\0\0\0\0\0\0\0\0\0\0"..., 152) = -1 EPIPE (Broken pipe)
--- SIGPIPE (Broken pipe) ---
[root@node30 root]# strace -p 577
attach: ptrace(PTRACE_ATTACH, ...): No such process

I find it a bit curious that bpslave is getting SIGSTOP -- ??

Nic
-- 
Nicholas Henke
Penguin Herder & Linux Cluster System Programmer
Liniac Project - Univ. of Pennsylvania