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Trying to run psyBNC and it hangs from time to time. [message #30403] Fri, 23 May 2008 13:25 Go to next message
piplite is currently offline  piplite
Messages: 27
Registered: March 2008
Junior Member
Ok.. lets state the problem. I am trying to run psybnc 2.3.2-7 and it works perfectly fine but sometimes, once in 2-3 weeks it stops responding but keeps on sitting online. None of my users can not connect to it and log into it.

kernel: 2.6.18-53.1.13.el5.028stab053.10PAE
Here is user_beancounters.
Version: 2.5
       uid  resource           held    maxheld    barrier      limit    failcnt
      270:  kmemsize        1548271    1815290 2147483646 2147483646          0
            lockedpages           0          0     999999     999999          0
            privvmpages       12991      17806      32768      32768        20
            shmpages           1280       1296      17920      17920          0
            dummy                 0          0          0          0          0
            numproc              15         21     999999     999999          0
            physpages          6652       8057          0 2147483647          0
            vmguarpages           0          0      17920 2147483647          0
            oomguarpages       6652       8057      17920 2147483647          0
            numtcpsock           25         28    7999992    7999992          0
            numflock              1          4     999999     999999          0
            numpty                2          2     500000     500000          0
            numsiginfo            1          3     999999     999999          0
            tcpsndbuf        245960     259376   14680064  196706304        607
            tcprcvbuf       1210804    1194420   14680064  196706304         30
            othersockbuf       6708      12820   14680064  196706304         33
            dgramrcvbuf           0       3636   14680064  196706304          0
            numothersock          7         11    7999992    7999992          0
            dcachesize            0          0 2147483646 2147483646          0
            numfile             472        531   23999976   23999976          0
            dummy                 0          0          0          0          0
            dummy                 0          0          0          0          0
            dummy                 0          0          0          0          0
            numiptent            12         12     999999     999999          0


Anybody faced this problem before? I did try changing memory limits and even tried setting up everything to unlimit..
It happens on many HN servers and sometimes at the same time on all of them.

Thanks.
Re: Trying to run psyBNC and it hangs from time to time. [message #30516 is a reply to message #30403] Tue, 27 May 2008 22:42 Go to previous messageGo to next message
piplite is currently offline  piplite
Messages: 27
Registered: March 2008
Junior Member
here is my strace info:

21779 22:30:02.305164 futex(0x481d80, FUTEX_WAIT, 2, NULL) = -1 EINTR (Interrupted system call)
21779 22:40:01.327623 --- SIGCHLD (Child exited) @ 0 (0) ---
21779 22:40:01.327948 futex(0x481d80, FUTEX_WAIT, 2, NULL <unfinished ...>

[Updated on: Tue, 27 May 2008 22:42]

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Re: Trying to run psyBNC and it hangs from time to time. [message #30562 is a reply to message #30516] Wed, 28 May 2008 15:25 Go to previous message
maratrus is currently offline  maratrus
Messages: 1495
Registered: August 2007
Location: Moscow
Senior Member
Hi,

I've never used psyBNC so just several notes:
1. Try to increase "privvmpages" parameter.
2.
Quote:


It happens on many HN servers

but psyBNC runs inside VE on each HN?
3.
Quote:


21779 22:30:02.305164 futex(0x481d80, FUTEX_WAIT, 2, NULL) = -1 EINTR (Interrupted system call)
21779 22:40:01.327623 --- SIGCHLD (Child exited) @ 0 (0) ---
21779 22:40:01.327948 futex(0x481d80, FUTEX_WAIT, 2, NULL <unfinished ...>



Why do think it's a problem? I think there is no problem here. Just SIGCHLD interrupts futex syscall then as we can see the process resumed it.
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