Date: Thu, 16 May 2019 14:17:49 +0200 From: Jan Beich <jbeich@FreeBSD.org> To: Joan Picanyol i Puig <pica@biaix.org> Cc: office@freebsd.org, Greg Veldman <freebsd@gregv.net>, Li-Wen Hsu <lwhsu@freebsd.org> Subject: Re: reproducible crash after libreoffice update Message-ID: <tvdu-mw42-wny@FreeBSD.org> In-Reply-To: <20190516094425.GA43894@grummit.biaix.org> (Joan Picanyol i. Puig's message of "Thu, 16 May 2019 11:44:25 %2B0200") References: <20190514115233.GA9791@grummit.biaix.org> <CAKBkRUzCx=h20Jv%2BkocguNByhzPyPA6L8phvrmJgCUvfoqbntQ@mail.gmail.com> <20190514150206.GB11862@grummit.biaix.org> <sgth-m3hq-wny@FreeBSD.org> <20190514175041.GA14247@grummit.biaix.org> <r290-kem8-wny@FreeBSD.org> <20190515075117.GA23790@grummit.biaix.org> <sgtg-apuq-wny@FreeBSD.org> <20190516094425.GA43894@grummit.biaix.org>
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Joan Picanyol i Puig <pica@biaix.org> writes:
> It does seem that somehow the collator's settings get lost, some more details:
>
> (gdb) up 1
> #1 0x0000000800b5a241 in icu::RuleBasedCollator::doCompare (this=0x8173c41c0, left=0x7fffffffce02 u"pre.conf\xffff", leftLength=8, right=0x7fffffffcdc2 u"parent.conf",
> rightLength=11, errorCode=@0x7fffffffcd94: U_ZERO_ERROR) at rulebasedcollator.cpp:1003
> 1003 UBool numeric = settings->isNumeric();
>
Does the following sample crash? If not rebuild libreoffice with debug
symbol to get more context. Maybe libreoffice "delete" or "ucol_close"
UCollator pointer but then ends up using it, anyway
$ cat a.cc
#include <unicode/coll.h>
using namespace icu;
int main()
{
UErrorCode status = U_ZERO_ERROR;
Collator *coll = Collator::createInstance(Locale("ca", "ES"), status);
coll->compare(u"pre.conf\xffff", u"parent.conf");
return 0;
}
$ c++ a.cc $(icu-config --cppflags --ldflags)
$ ./a.out
> (gdb) up 1
> #3 0x0000000800b31b39 in icu::Collator::compare (this=0x8173c41c0, source=..., target=...) at coll.cpp:495
> 495 return (EComparisonResult)compare(source, target, ec);
> (gdb) print *this
> $1 = {<icu::UObject> = {<icu::UMemory> = {<No data fields>}, _vptr$UObject = 0x800ce7930 <vtable for icu::RuleBasedCollator+16>}, <No data fields>}
>From the above example:
(gdb) p *this
$1 = {<icu::Collator> = {<icu::UObject> = {<icu::UMemory> = {<No data fields>},
_vptr$UObject = 0x800658578 <vtable for icu::RuleBasedCollator+16>}, <No data fields>},
data = 0x800f21000, settings = 0x800f08000, tailoring = 0x800f01000, cacheEntry = 0x800f50400,
validLocale = {<icu::UObject> = {<icu::UMemory> = {<No data fields>},
_vptr$UObject = 0x8008d8a80 <vtable for icu::Locale+16>},
language = "ca\000\000\000\000\000\000\000\000\000", script = "\000\000\000\000\000",
country = "\000\000\000", variantBegin = 2, fullName = 0x800f61058 "ca",
fullNameBuffer = "ca", '\000' <repeats 154 times>, baseName = 0x800f61058 "ca", fIsBogus = 0 '\000'},
explicitlySetAttributes = 0, actualLocaleIsSameAsValid = 0 '\000'}
but if "delete coll" happens before coll->compare()
(gdb) p *this
$2 = {<icu::UObject> = {<icu::UMemory> = {<No data fields>},
_vptr$UObject = 0x800658578 <vtable for icu::RuleBasedCollator+16>}, <No data fields>}
Did you notice "settings" was lost?
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