<html><head><meta http-equiv="Content-Type" content="text/html charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class="">This is part of an in-memory system (no swap space configured) so RSS would match the AS size for this use case. From what I read about RSS and AS for MacOS and Linux.<div class=""><br class=""></div><div class="">Why did it lock up, why not throw the exception and exit?</div><div class=""><br class=""></div><div class=""><span class="Apple-tab-span" style="white-space:pre"> </span>David</div><div class=""><br class=""><div class=""><div><blockquote type="cite" class=""><div class="">On Jun 28, 2017, at 8:07 AM, Brian Cain <<a href="mailto:brian.cain@gmail.com" class="">brian.cain@gmail.com</a>> wrote:</div><br class="Apple-interchange-newline"><div class=""><div dir="ltr" class=""><br class=""><div class="gmail_extra"><br class=""><div class="gmail_quote">On Wed, Jun 28, 2017 at 9:55 AM, David Barto <span dir="ltr" class=""><<a href="mailto:barto@cambridgesemantics.com" target="_blank" class="">barto@cambridgesemantics.com</a>></span> wrote:<br class=""><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div style="word-wrap:break-word" class=""><div class="">This the the stack trace when the compiler locked up.</div><div class="">I attached with ‘lldb -p <pid>”</div><div class="">I did the thread backtrace all then a process resume</div><div class="">I interrupted the program again and did a second thread backtrace all. Both were identical.</div><div class=""><br class=""></div><div class=""><span class="m_3943076733130296392Apple-tab-span" style="white-space:pre-wrap"> </span>David</div><div class=""><br class=""></div><div class=""><div style="margin:0px;font-family:'PT Mono'" class=""><span style="font-variant-ligatures:no-common-ligatures;color:#a9a9a9" class="">(lldb) </span>thread backtrace all</div><div style="margin:0px;font-family:'PT Mono'" class="">* thread #1: tid = 0x13b475b, 0x00007fff90ec65da libsystem_kernel.dylib`<wbr class="">syscall_thread_switch + 10, queue = 'com.apple.main-thread', stop reason = signal SIGSTOP</div><div style="margin:0px;font-family:'PT Mono'" class=""> * frame #0: 0x00007fff90ec65da libsystem_kernel.dylib`<wbr class="">syscall_thread_switch + 10</div><div style="margin:0px;font-family:'PT Mono'" class=""> frame #1: 0x00007fff9497682d libsystem_platform.dylib`_<wbr class="">OSSpinLockLockSlow + 63</div><div style="margin:0px;font-family:'PT Mono'" class=""> frame #2: 0x00007fff8ca7271b libsystem_malloc.dylib`szone_<wbr class="">malloc_should_clear + 116</div><div style="margin:0px;font-family:'PT Mono'" class=""> frame #3: 0x00007fff8ca72667 libsystem_malloc.dylib`malloc_<wbr class="">zone_malloc + 71</div><div style="margin:0px;font-family:'PT Mono'" class=""> frame #4: 0x00007fff8ca71187 libsystem_malloc.dylib`malloc + 42</div><div style="margin:0px;font-family:'PT Mono'" class=""> frame #5: 0x00007fff991fa43e libc++.1.dylib`operator new(unsigned long) + 30</div><div style="margin:0px;font-family:'PT Mono'" class=""> frame #6: 0x00007fff991fcf05 libc++.1.dylib`std::__1::<wbr class="">basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >::__init(char const*, unsigned long) + 59</div><div style="margin:0px;font-family:'PT Mono'" class=""> frame #7: 0x000000010e6fc7a9 libLLVM.dylib`llvm::sys::<wbr class="">findProgramByName(llvm::<wbr class="">StringRef, llvm::ArrayRef<llvm::<wbr class="">StringRef>) + 670</div></div><div style="margin:0px;font-family:'PT Mono'" class=""><br class=""></div></div></blockquote><div class=""><br class=""></div><div class="">This seems to point back to your RLIMIT_AS constraint, or overall system memory availability. Why constrain the address space? A much more realistic constraint would be RLIMIT_RSS.</div><div class=""><br class=""></div><div class="">-Brian</div></div>
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<div style="color: rgb(0, 0, 0); letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class=""><div style="color: rgb(0, 0, 0); letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class="">David Barto<br class=""><a href="mailto:barto@cambridgesemantics.com" class="">barto@cambridgesemantics.com</a></div><div style="color: rgb(0, 0, 0); letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class=""><br class=""></div><div style="color: rgb(0, 0, 0); letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class="">Sometimes, my best code does nothing. Most of the rest of it has bugs.<br class=""><br class=""><br class=""></div></div>
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