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 | Posted by Mengu |  Permalink Reply |
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Mengu 
| hello everyone
i have a small program that parses an xml file, holding a list with 13610 elements. after making the list, it iterates over the list (paralele), goes to a web site and grabs the related data for that element.
it works perfect for the first 1K element in the list. after that i get a very annoying segmentation fault. no exceptions, nothing. it just dumps a core file. below is the full stack trace. (also available at https://pastebin.com/PT1R5D7S)
i appreciate any help.
my dmd info:
DMD64 D Compiler v2.076.0-dirty
Copyright (c) 1999-2017 by Digital Mars written by Walter Bright
my os info:
FreeBSD metropol.com 11.1-RELEASE FreeBSD 11.1-RELEASE #0 r321309: Fri Jul 21 02:08:28 UTC 2017 root@releng2.nyi.freebsd.org:/usr/obj/usr/src/sys/GENERIC amd64
(gdb) bt full
#0 0x000000000061d8cd in rt.aaA.Impl.findSlotLookup(ulong, const(void*), const(TypeInfo)) inout ()
No symbol table info available.
#1 0x00000000005dcb21 in _aaInX ()
No symbol table info available.
#2 0x000000000067fef0 in std.regex.internal.ir.getMatcher(std.uni.InversionList!(std.uni.GcPolicy).InversionList) ()
No symbol table info available.
#3 0x0000000000677a26 in std.regex.internal.parser.CodeGen.charsetToIr(std.uni.InversionList!(std.uni.GcPolicy).InversionList) ()
No symbol table info available.
#4 0x0000000000655f47 in std.regex.internal.parser.Parser!(immutable(char)[], std.regex.internal.parser.CodeGen).Parser.parseEscape() ()
No symbol table info available.
#5 0x0000000000654680 in std.regex.internal.parser.Parser!(immutable(char)[], std.regex.internal.parser.CodeGen).Parser.parseAtom() ()
No symbol table info available.
#6 0x00000000006541e3 in std.regex.internal.parser.Parser!(immutable(char)[], std.regex.internal.parser.CodeGen).Parser.parseRegex() ()
No symbol table info available.
#7 0x00000000006570f0 in std.regex.internal.parser.Parser!(immutable(char)[], std.regex.internal.parser.CodeGen).Parser.this!(const(char)[]).this(immutable(char)[], const(char)[]) ()
No symbol table info available.
#8 0x0000000000652fb1 in std.regex.regexImpl!(immutable(char)[]).regexImpl(immutable(char)[], const(char)[]) ()
No symbol table info available.
#9 0x0000000000636af3 in std.functional.memoize!(std.regex.regexImpl!(immutable(char)[]).regexImpl(immutable(char)[], const(char)[]), 8).memoize(immutable(char)[], const(char)[]) ()
No symbol table info available.
#10 0x00000000005fd617 in std.regex.regex!(immutable(char)[]).regex(immutable(char)[][], const(char)[]) ()
No symbol table info available.
#11 0x00000000005fd472 in std.regex.regex!(immutable(char)[]).regex(immutable(char)[], const(char)[]) ()
No symbol table info available.
#12 0x00000000005f7bb7 in std.net.curl.HTTP.Impl.onReceiveHeader(void(const(char[]), const(char[])) delegate).__lambda2(const(char[])) ()
No symbol table info available.
#13 0x00000000005fb98a in std.net.curl.Curl.onReceiveHeader(void(const(char[])) delegate).__lambda2(const(char[])) ()
No symbol table info available.
#14 0x00000000005fbdce in std.net.curl.Curl._receiveHeaderCallback(const(char*), ulong, ulong, void*) ()
No symbol table info available.
#15 0x000000080681838b in ?? () from /usr/local/lib/libcurl.so
No symbol table info available.
#16 0x0000000806816c95 in ?? () from /usr/local/lib/libcurl.so
No symbol table info available.
#17 0x000000080683119c in ?? () from /usr/local/lib/libcurl.so
No symbol table info available.
#18 0x000000080683bd94 in ?? () from /usr/local/lib/libcurl.so
No symbol table info available.
---Type <return> to continue, or q <return> to quit---
#19 0x000000080683b56b in curl_multi_perform () from /usr/local/lib/libcurl.so
No symbol table info available.
#20 0x00000008068334b0 in curl_easy_perform () from /usr/local/lib/libcurl.so
No symbol table info available.
#21 0x00000000005fb77c in std.net.curl.Curl.perform(std.typecons.Flag!("throwOnError").Flag) ()
No symbol table info available.
#22 0x00000000005f8a20 in std.net.curl.HTTP.perform(std.typecons.Flag!("throwOnError").Flag) ()
No symbol table info available.
#23 0x00000000005cff60 in provider.SunHotels.getHotels(destination.Destination) (this=0x80097e000, destination=...) at source/provider.d:226
__closptr = 0x800980800
filePath = "/usr/home/search-master/search-api/ext/data/hotels/6593.xml"
__dollar = 7
hotelsPath = "http://some-domain.com"
data = {ptr = 0x80097f240}
http = {p = {_refCounted = {_store = 0x805a14000}}}
postData = "some=postData"
__flag = 2
__EAX = 0x8002901170
__exception_object = 0x0
__EAX = 0x8002901170
__EDX = -851895465
__handler = 0
__exception_object = 0x801f12540
#24 0x000000000059cdb2 in app.getDestinations().__foreachbody1(ref destination.Destination) (this=0x7fffffffe850, __applyArg0=...) at source/app.d:164
destination = {destinationId = 6593, destinationCode = "GRR", destinationCode_1 = 0x0, destinationCode_2 = 0x0, destinationCode_3 = 0x0,
destinationCode_4 = 0x0, destinationName = "Cedar (MI)", countryId = 43, countryName = "USA", countryCode = "US", timeZone = "-05:00"}
#25 0x000000000059e6bc in std.parallelism.ParallelForeach!(destination.Destination[]).ParallelForeach.opApply(scope int(ref destination.Destination) delegate).doIt() (this=0x7fffffffe7d0) at /home/search-master/dmd2/freebsd/bin64/../../src/phobos/std/parallelism.d-mixin-3824:3870
myUnitIndex = 5
start = 2130
end = 2556
__key3499 = 2306
__limit3500 = 2556
i = 2306
__EAX = 0x8002901170
__EDX = -851895465
__handler = 0
__exception_object = 0x802016500
#26 0x00000000005eadcc in std.parallelism.run!(void() delegate).run(void() delegate) ()
---Type <return> to continue, or q <return> to quit---
No symbol table info available.
#27 0x00000000005ea92c in std.parallelism.Task!(std.parallelism.run, void() delegate).Task.impl(void*) ()
No symbol table info available.
#28 0x00000000006371af in std.parallelism.AbstractTask.job() ()
No symbol table info available.
#29 0x00000000005e9670 in std.parallelism.TaskPool.doJob(std.parallelism.AbstractTask*) ()
No symbol table info available.
#30 0x00000000005e97c6 in std.parallelism.TaskPool.executeWorkLoop() ()
No symbol table info available.
#31 0x00000000005e976e in std.parallelism.TaskPool.startWorkLoop() ()
No symbol table info available.
#32 0x000000000061177c in core.thread.Thread.run() ()
No symbol table info available.
#33 0x000000000065bade in thread_entryPoint ()
No symbol table info available.
#34 0x0000000800d6abc5 in ?? () from /lib/libthr.so.3
No symbol table info available.
#35 0x0000000000000000 in ?? ()
No symbol table info available.
Backtrace stopped: Cannot access memory at address 0x7fffdfffe000
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