Re: segfault at 0 ... error 4 in curl-loader

[bnoble <bn...@gm...>]

Oh and also:

cat /proc/sys/fs/file-max
610245

Thanks.

On Tue, Dec 1, 2009 at 1:17 PM, bnoble <bn...@gm...> wrote:
> You bet, thanks for the quick reply:
>
> Core was generated by `curl-loader -t 4 -f
> /home/support/curl-loader/curl-loader-0.50/conf-examples/ht'.
> Program terminated with signal 11, Segmentation fault.
> #0  0x0000000000437de0 in Curl_done ()
> (gdb) bt
> #0  0x0000000000437de0 in Curl_done ()
> #1  0x0000000000426a32 in multi_runsingle ()
> #2  0x0000000000426e5f in curl_multi_perform ()
> #3  0x0000000000428629 in curl_multi_socket_all ()
> #4  0x0000000000411bfa in mperform_hyper (bctx=0x7fffff4aa410,
> still_running=0x7ff32f33de94) at loader_hyper.c:683
> #5  0x0000000000411520 in next_load_cb_hyper (fd=-1, kind=1,
> userp=0x7fffff4aa410) at loader_hyper.c:398
> #6  0x00000000004648f8 in event_base_loop ()
> #7  0x0000000000411995 in mget_url_hyper (bctx=0x7fffff4aa410) at
> loader_hyper.c:567
> #8  0x00000000004118b0 in user_activity_hyper
> (cctx_array=0x7ff330b42010) at loader_hyper.c:506
> #9  0x000000000040aadf in batch_function (batch_data=0x7fffff4aa410)
> at loader.c:345
> #10 0x00007ff331d52070 in start_thread () from /lib64/libpthread.so.0
> #11 0x00007ff3310db11d in clone () from /lib64/libc.so.6
> #12 0x0000000000000000 in ?? ()
> (gdb) up
> #9  0x000000000040aadf in batch_function (batch_data=0x7fffff4aa410)
> at loader.c:345
> 345       rval = ua_array[loading_mode] (bctx->cctx_array);
> (gdb) up
> #10 0x00007ff331d52070 in start_thread () from /lib64/libpthread.so.0
> (gdb) up
> #11 0x00007ff3310db11d in clone () from /lib64/libc.so.6
> (gdb) up
> #12 0x0000000000000000 in ?? ()
> (gdb) up
>
> On Tue, Dec 1, 2009 at 1:07 PM, Robert Iakobashvili <cor...@gm...> wrote:
>> Hi bnoble,
>>
>> On Tue, Dec 1, 2009 at 10:42 PM, bnoble <bn...@gm...> wrote:
>>>
>>> Hello,
>>>
>>> I receive the following error when attempting to run the 10k
>>> configuration example, or any configuration which exceeds 1500-3000
>>> CLIENTS_NUM_MAX:
>>>
>>> curl-loader[3975]: segfault at 0 ip 0000000000440094 sp
>>> 00007f96b17c2bc0 error 4 in curl-loader[400000+8a000]
>>>
>>> Sometimes it crashes immediately, sometimes it runs until ~3000
>>> clients are loaded.  I have played with every conceivable sysctl
>>> parameter with no luck.  I have tried running the application with
>>> four threads, I have adhered to every recommendation I could find.  Am
>>> I missing something obvious?  I encountered similar problems with an
>>> old Ubuntu VM previously; this, however, is not a VM instance.
>>>
>>> OS: OpenSuSE 11.1
>>> Linux 2.6.27.37-0.1-default #1 SMP 2009-10-15 14:56:58 +0200 x86_64
>>> x86_64 x86_64 GNU/Linux
>>> Quad-core 2Ghz Xeon (Tylersburg) 4M cache with 8GB RAM
>>>
>>> Thanks.
>>
>>
>> Are you sure, that your sockets/open descriptors limit is sufficient?
>>
>>
>> Please:
>>
>> 1. Compile it with debugging information
>> $make clean; make debug=1 optimize=0
>>
>> 2. keep core allowed in your shell
>> #ulimit -c unlimited
>>
>> 3. Run it till crash and get the core file
>>
>> 4. open the core and the curl-loader application by gdb debugger
>>    and explore the backtrace by bt command
>>
>> You might wish to send the trace to this list.
>>
>>
>> --
>> Truly,
>> Robert Iakobashvili, Ph.D.
>> ......................................................................
>> www.ghotit.com
>> Assistive technology that understands you
>> ......................................................................
>>
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>