StacktraceTop: __libc_message (do_abort=2, fmt=0x7f12a9adc028 "*** glibc detected *** %s: %s: 0x%s ***\n") at ../sysdeps/unix/sysv/linux/libc_fatal.c:201 malloc_printerr (action=3, str=0x7f12a9adc1d0 "double free or corruption (top)", ptr=<optimized out>) at malloc.c:5007 initialize_backend (cbdav=cbdav@entry=0xfe1000, perror=perror@entry=0x7f1295c7ad58) at e-cal-backend-caldav.c:2652 caldav_do_open (backend=0xfe1000, cal=<optimized out>, cancellable=0x1279060, only_if_exists=<optimized out>, perror=0x7f1295c7ad58) at e-cal-backend-caldav.c:2754 cal_backend_open (backend=0xfe1000, cal=0xfd1aa0, opid=4, cancellable=0x1279060, only_if_exists=1) at e-cal-backend-sync.c:578
StacktraceTop: unix/sysv/ linux/libc_ fatal.c: 201 cbdav@entry= 0xfe1000, perror= perror@ entry=0x7f1295c 7ad58) at e-cal-backend- caldav. c:2652 0x1279060, only_if_ exists= <optimized out>, perror= 0x7f1295c7ad58) at e-cal-backend- caldav. c:2754 0x1279060, only_if_exists=1) at e-cal-backend- sync.c: 578
__libc_message (do_abort=2, fmt=0x7f12a9adc028 "*** glibc detected *** %s: %s: 0x%s ***\n") at ../sysdeps/
malloc_printerr (action=3, str=0x7f12a9adc1d0 "double free or corruption (top)", ptr=<optimized out>) at malloc.c:5007
initialize_backend (cbdav=
caldav_do_open (backend=0xfe1000, cal=<optimized out>, cancellable=
cal_backend_open (backend=0xfe1000, cal=0xfd1aa0, opid=4, cancellable=