Package: libdjvulibre21
Version: 3.5.26-1
Severity: important
Control: affects -1 + pdf2djvu ocrodjvu djvusmooth
The attached test program hangs forever:
$ make gc_lock LDLIBS=-ldjvulibre
cc gc_lock.c -ldjvulibre -o gc_lock
$ ./gc_lock
[nothing happens...]
This used to work fine with DjVuLibre 3.5.25 and earlier versions.
Backtrace:
#0 0xf7fdc425 in __kernel_vsyscall ()
#1 0xf7bfe672 in __lll_lock_wait () at
../nptl/sysdeps/unix/sysv/linux/i386/i686/../i486/lowlevellock.S:144
#2 0xf7bfa1b4 in _L_lock_842 () from
/lib/i386-linux-gnu/i686/cmov/libpthread.so.0
#3 0xf7bf9ff0 in __GI___pthread_mutex_lock (mutex=0xf7fbfa34) at
../nptl/pthread_mutex_lock.c:79
#4 0xf7d63b94 in pthread_mutex_lock (mutex=0xf7fbfa34) at forward.c:192
#5 0xf7f61e07 in minivar_t::minivar_t(miniexp_s*) () from
/usr/lib/i386-linux-gnu/libdjvulibre.so.21
#6 0xf7f626a1 in minilisp_release_gc_lock () from
/usr/lib/i386-linux-gnu/libdjvulibre.so.21
#7 0x080484df in main (argc=1, argv=0xffffd644) at gc_lock.c:7
-- System Information:
Debian Release: 8.0
APT prefers unstable
APT policy: (990, 'unstable'), (500, 'experimental')
Architecture: i386 (x86_64)
Foreign Architectures: amd64
Kernel: Linux 3.2.0-4-amd64 (SMP w/2 CPU cores)
Locale: LANG=C, LC_CTYPE=pl_PL.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: sysvinit (via /sbin/init)
Versions of packages libdjvulibre21 depends on:
ii libc6 2.19-13
ii libdjvulibre-text 3.5.26-1
ii libgcc1 1:4.9.2-10
ii libjpeg62-turbo 1:1.3.1-11
ii libstdc++6 4.9.2-10
ii multiarch-support 2.19-13
--
Jakub Wilk
#include <libdjvu/miniexp.h>
int main(int argc, char * const argv[])
{
minilisp_acquire_gc_lock(0);
miniexp_cons(miniexp_nil, miniexp_nil);
minilisp_release_gc_lock(0);
return 0;
}
