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Re: Okular crashes opening some PDFs

John Scott wrote:

> Do you have one you're comfortable sharing (possibly off-list)?

Yes, for example this one:

https://www.boe.es/boe/dias/2018/04/26/pdfs/BOE-A-2018-5704.pdf

Just download it to your hard disk.

I have consulted it regularly since 2018 but since a few days it makes
okular to crash. It opens fine in other readers, for example in
Chrome.

eoz@waterhole:~$ okular BOE-A-2018-5704.pdf
KCrash: crashing... crashRecursionCounter = 2
KCrash: Application Name = okular path = /usr/bin pid = 3924
KCrash: Arguments: /usr/bin/okular BOE-A-2018-5704.pdf
KCrash: Attempting to start /usr/lib/x86_64-linux-gnu/libexec/drkonqi



>From Dr Konqi:

Application: Okular (okular), signal: Segmentation fault

Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".

[Current thread is 1 (Thread 0x7f010dc97840 (LWP 3924))]


Thread 7 (Thread 0x7f00f5fc2700 (LWP 3930)):

#0 futex_wait_cancelable (private=0, expected=0,
futex_word=0x55adb441b3b8) at ../sysdeps/nptl/futex-internal.h:183

#1 __pthread_cond_wait_common (abstime=0x0, clockid=0,
mutex=0x55adb441b368, cond=0x55adb441b390) at pthread_cond_wait.c:508

#2 __pthread_cond_wait (cond=0x55adb441b390, mutex=0x55adb441b368) at
pthread_cond_wait.c:638

#3 0x00007f00fe12575b in ?? () from /usr/lib/x86_64-linux-gnu/dri/iris_dri.so

#4 0x00007f00fe125377 in ?? () from /usr/lib/x86_64-linux-gnu/dri/iris_dri.so

#5 0x00007f0110e64ea7 in start_thread (arg=<optimized out>) at
pthread_create.c:477

#6 0x00007f0111928dcf in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95


Thread 6 (Thread 0x7f00f67c3700 (LWP 3929)):

#0 futex_wait_cancelable (private=0, expected=0,
futex_word=0x55adb441b3b8) at ../sysdeps/nptl/futex-internal.h:183

#1 __pthread_cond_wait_common (abstime=0x0, clockid=0,
mutex=0x55adb441b368, cond=0x55adb441b390) at pthread_cond_wait.c:508

#2 __pthread_cond_wait (cond=0x55adb441b390, mutex=0x55adb441b368) at
pthread_cond_wait.c:638

#3 0x00007f00fe12575b in ?? () from /usr/lib/x86_64-linux-gnu/dri/iris_dri.so

#4 0x00007f00fe125377 in ?? () from /usr/lib/x86_64-linux-gnu/dri/iris_dri.so

#5 0x00007f0110e64ea7 in start_thread (arg=<optimized out>) at
pthread_create.c:477

#6 0x00007f0111928dcf in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95


Thread 5 (Thread 0x7f00f6fc4700 (LWP 3928)):

#0 futex_wait_cancelable (private=0, expected=0,
futex_word=0x55adb441b3b8) at ../sysdeps/nptl/futex-internal.h:183

#1 __pthread_cond_wait_common (abstime=0x0, clockid=0,
mutex=0x55adb441b368, cond=0x55adb441b390) at pthread_cond_wait.c:508

#2 __pthread_cond_wait (cond=0x55adb441b390, mutex=0x55adb441b368) at
pthread_cond_wait.c:638

#3 0x00007f00fe12575b in ?? () from /usr/lib/x86_64-linux-gnu/dri/iris_dri.so

#4 0x00007f00fe125377 in ?? () from /usr/lib/x86_64-linux-gnu/dri/iris_dri.so

#5 0x00007f0110e64ea7 in start_thread (arg=<optimized out>) at
pthread_create.c:477

#6 0x00007f0111928dcf in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95


Thread 4 (Thread 0x7f00f77c5700 (LWP 3927)):

#0 futex_wait_cancelable (private=0, expected=0,
futex_word=0x55adb441b3b8) at ../sysdeps/nptl/futex-internal.h:183

#1 __pthread_cond_wait_common (abstime=0x0, clockid=0,
mutex=0x55adb441b368, cond=0x55adb441b390) at pthread_cond_wait.c:508

#2 __pthread_cond_wait (cond=0x55adb441b390, mutex=0x55adb441b368) at
pthread_cond_wait.c:638

#3 0x00007f00fe12575b in ?? () from /usr/lib/x86_64-linux-gnu/dri/iris_dri.so

#4 0x00007f00fe125377 in ?? () from /usr/lib/x86_64-linux-gnu/dri/iris_dri.so

#5 0x00007f0110e64ea7 in start_thread (arg=<optimized out>) at
pthread_create.c:477

#6 0x00007f0111928dcf in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95


Thread 3 (Thread 0x7f0106d32700 (LWP 3926)):

#0 __GI___libc_read (nbytes=16, buf=0x7f0106d31b20, fd=7) at
../sysdeps/unix/sysv/linux/read.c:26

#1 __GI___libc_read (fd=7, buf=0x7f0106d31b20, nbytes=16) at
../sysdeps/unix/sysv/linux/read.c:24

#2 0x00007f01103c0f4f in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0

#3 0x00007f011037933e in g_main_context_check () from
/lib/x86_64-linux-gnu/libglib-2.0.so.0

#4 0x00007f0110379792 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0

#5 0x00007f011037990f in g_main_context_iteration () from
/lib/x86_64-linux-gnu/libglib-2.0.so.0

#6 0x00007f0111eb390b in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>)
() from /lib/x86_64-linux-gnu/libQt5Core.so.5

#7 0x00007f0111e5b89b in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from
/lib/x86_64-linux-gnu/libQt5Core.so.5

#8 0x00007f0111c868be in QThread::exec() () from
/lib/x86_64-linux-gnu/libQt5Core.so.5

#9 0x00007f0112104507 in ?? () from /lib/x86_64-linux-gnu/libQt5DBus.so.5

#10 0x00007f0111c87988 in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5

#11 0x00007f0110e64ea7 in start_thread (arg=<optimized out>) at
pthread_create.c:477

#12 0x00007f0111928dcf in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95


Thread 2 (Thread 0x7f010ceb1700 (LWP 3925)):

#0 0x00007f011191e3df in __GI___poll (fds=0x7f010ceb0c68, nfds=1,
timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29

#1 0x00007f01110f2d02 in ?? () from /lib/x86_64-linux-gnu/libxcb.so.1

#2 0x00007f01110f498a in xcb_wait_for_event () from
/lib/x86_64-linux-gnu/libxcb.so.1

#3 0x00007f010d88adc0 in ?? () from /lib/x86_64-linux-gnu/libQt5XcbQpa.so.5

#4 0x00007f0111c87988 in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5

#5 0x00007f0110e64ea7 in start_thread (arg=<optimized out>) at
pthread_create.c:477

#6 0x00007f0111928dcf in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95


Thread 1 (Thread 0x7f010dc97840 (LWP 3924)):

[KCrash Handler]

#4 0x00007f00f5300d75 in SECMOD_ReferenceModule () from
/lib/x86_64-linux-gnu/libnss3.so

#5 0x00007f00f53012fc in ?? () from /lib/x86_64-linux-gnu/libnss3.so

#6 0x00007f00f53013a0 in SECMOD_AddNewModuleEx () from
/lib/x86_64-linux-gnu/libnss3.so

#7 0x00007f00f561d15d in SignatureHandler::init_nss() () from
/lib/x86_64-linux-gnu/libpoppler.so.82

#8 0x00007f00f561d529 in SignatureHandler::SignatureHandler(unsigned
char*, int) () from /lib/x86_64-linux-gnu/libpoppler.so.82

#9 0x00007f00f5512f2c in FormFieldSignature::validateSignature(bool,
bool, long) () from /lib/x86_64-linux-gnu/libpoppler.so.82

#10 0x00007f00f572e384 in Poppler::FormFieldSignature::validate(int,
QDateTime const&) const () from
/lib/x86_64-linux-gnu/libpoppler-qt5.so.1

#11 0x00007f00f572e8e0 in
Poppler::FormFieldSignature::validate(Poppler::FormFieldSignature::ValidateOptions)
const () from /lib/x86_64-linux-gnu/libpoppler-qt5.so.1

#12 0x00007f00f57b280b in ?? () from
/usr/lib/x86_64-linux-gnu/qt5/plugins/okular/generators/okularGenerator_poppler.so

#13 0x00007f00f57a6f94 in ?? () from
/usr/lib/x86_64-linux-gnu/qt5/plugins/okular/generators/okularGenerator_poppler.so

#14 0x00007f00f57abb80 in ?? () from
/usr/lib/x86_64-linux-gnu/qt5/plugins/okular/generators/okularGenerator_poppler.so

#15 0x00007f00f57abf3f in ?? () from
/usr/lib/x86_64-linux-gnu/qt5/plugins/okular/generators/okularGenerator_poppler.so

#16 0x00007f00f57ac19a in ?? () from
/usr/lib/x86_64-linux-gnu/qt5/plugins/okular/generators/okularGenerator_poppler.so

#17 0x00007f0105872d38 in ?? () from /lib/x86_64-linux-gnu/libOkular5Core.so.9

#18 0x00007f0105873443 in Okular::Document::openDocument(QString
const&, QUrl const&, QMimeType const&, QString const&) () from
/lib/x86_64-linux-gnu/libOkular5Core.so.9

#19 0x00007f01059ebe65 in Okular::Part::doOpenFile(QMimeType const&,
QString const&, bool*) () from
/usr/lib/x86_64-linux-gnu/qt5/plugins/okularpart.so

#20 0x00007f01059ed0e1 in Okular::Part::openFile() () from
/usr/lib/x86_64-linux-gnu/qt5/plugins/okularpart.so

#21 0x00007f01136558fd in ?? () from /lib/x86_64-linux-gnu/libKF5Parts.so.5

#22 0x00007f0113656886 in KParts::ReadOnlyPart::openUrl(QUrl const&)
() from /lib/x86_64-linux-gnu/libKF5Parts.so.5

#23 0x00007f01059dd50e in Okular::Part::openUrl(QUrl const&, bool) ()
from /usr/lib/x86_64-linux-gnu/qt5/plugins/okularpart.so

#24 0x000055adb3660afb in ?? ()

#25 0x000055adb3660d87 in ?? ()

#26 0x000055adb3658d2c in ?? ()

#27 0x000055adb3658a13 in ?? ()

#28 0x00007f0111851cca in __libc_start_main (main=0x55adb3658370,
argc=2, argv=0x7ffc770eacb8, init=<optimized out>, fini=<optimized
out>, rtld_fini=<optimized out>, stack_end=0x7ffc770eaca8) at
../csu/libc-start.c:308

#29 0x000055adb3659eda in ?? ()

[Inferior 1 (process 3924) detached]
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