<div dir="ltr"><div class="gmail_extra"><br><div class="gmail_quote">On Mon, Sep 22, 2014 at 10:19 AM, 卓一抗 <span dir="ltr"><<a href="mailto:zhuoyikang@gmail.com" target="_blank">zhuoyikang@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr"><br><div style="font-family:arial,sans-serif;font-size:14px">* From the place where the error happens I assume that this is during start up. Is that a correct assumption? =></div><div style="font-family:arial,sans-serif;font-size:14px"><br></div><div style="font-family:arial,sans-serif;font-size:14px">it's not start up , my program run few hours and get the segment fault.</div></div></blockquote><div><br></div><div>Then the error did not happen in erts_bfalc_init as that is only called during startup before any schedulers are even started.</div><div> </div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr"><span class=""><div style="font-family:arial,sans-serif;font-size:14px"><br></div></span><span class=""><div style="font-family:arial,sans-serif;font-size:14px">* Can you get a full core file?</div><div style="font-family:arial,sans-serif;font-size:14px"><br></div></span><div style="font-family:arial,sans-serif;font-size:14px">=> the core file is too large , more 2G , it not write successfully..</div><span class=""><div style="font-family:arial,sans-serif;font-size:14px"><br></div></span></div></blockquote><div><br></div><div>It should be possible to get quite a lot of information out of a partial core. Have you tried just setting ulimit -c to 1 GB and then check if you can get any info from that core?</div><div> </div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr"><span class=""><div style="font-family:arial,sans-serif;font-size:14px"></div><div style="font-family:arial,sans-serif;font-size:14px"><br></div></span><span class=""><div style="font-family:arial,sans-serif;font-size:14px"><br></div><div style="font-family:arial,sans-serif;font-size:14px">* Are you running any non-Erlang/OTP nifs/linked-in drivers?</div><div style="font-family:arial,sans-serif;font-size:14px"><br></div></span><div style="font-family:arial,sans-serif;font-size:14px">not nifs.... competely erlang/otp</div></div></blockquote><div><br></div><div>Are you 100% sure? No third party libs use nifs/linked-in drivers? This type of error almost always turn out to be nif/linked-in driver related.</div><div> </div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div class="HOEnZb"><div class="h5"><div class="gmail_extra"><br><div class="gmail_quote">2014-09-22 16:06 GMT+08:00 Lukas Larsson <span dir="ltr"><<a href="mailto:lukas@erlang.org" target="_blank">lukas@erlang.org</a>></span>:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr">Hello,<div><br></div><div>This is not a known issue.</div><div><br></div><div>You will have to provide a little more information in order for me to understand what is going on.</div><div><br></div><div>* From the place where the error happens I assume that this is during start up. Is that a correct assumption?</div><div>* Is it possible to reproduce?</div><div>* Can you get a full core file?</div><div>* What OS are you using?</div><div>* How did you install Erlang/OTP?</div><div>* Are you running any non-Erlang/OTP nifs/linked-in drivers?<br></div><div><br></div><div>Lukas</div></div><div class="gmail_extra"><br><div class="gmail_quote"><div><div>On Sun, Sep 21, 2014 at 4:38 PM, 卓一抗 <span dir="ltr"><<a href="mailto:zhuoyikang@gmail.com" target="_blank">zhuoyikang@gmail.com</a>></span> wrote:<br></div></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div><div><div dir="ltr">hello，everybody :<div><br></div><div>my erlang node crash and dmesg report:</div><div><br></div><div>segfault at 18 ip 00000000004565f4 sp 00007fffe9178698 error 4 in beam[400000+1e9000]<br></div><div><br></div><div>and i objdump -d beam to track this code :</div><div><br></div><div><div> 456597: 74 5b je 4565f4 <erts_bfalc_init+0x4a4></div><div> 456599: 48 8b 71 08 mov 0x8(%rcx),%rsi</div><div> 45659d: 40 f6 c6 02 test $0x2,%sil</div><div> 4565a1: 74 51 je 4565f4 <erts_bfalc_init+0x4a4></div><div> 4565f4: 48 8b 41 18 mov 0x18(%rcx),%rax</div></div><div><div><br></div><div> so simple code => </div><div><br></div><div> void</div><div> erts_bfalc_init(void)</div><div> {</div><div> atoms_initialized = 0;</div><div> }</div><div> .//erts/emulator/beam/erl_bestfit_alloc.h:39:void erts_bfalc_init(void);</div></div><div><br></div><div><br></div><div>does it a bug on erlang rb15b02? and anyone occur the same question like me ?<br><span style="color:rgb(84,84,84);font-family:arial,sans-serif;line-height:18.2000007629395px"><br></span></div><div><span style="color:rgb(84,84,84);font-family:arial,sans-serif;line-height:18.2000007629395px">I need some help.....</span><br></div><div><br></div></div>
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