Description of problem: I've been debugging the bug https://bugzilla.redhat.com/show_bug.cgi?id=1175915. The crash happenned when I ran manually what libspectre calls itself when requesting render of given PostScript file. I've narrowed minimal set of flags which causes the crash to "gs -sDEVICE=display -dGraphicsAlphaBits=4 -dDisplayFormat=2052 Antisym.eps". I've got the "Antisym.eps" from https://bugzilla.redhat.com/attachment.cgi?id=970806 but the crash happens also for an ordinary PostScript file which I use for testing. Version-Release number of selected component: ghostscript-core-9.15-6.fc21 Additional info: reporter: libreport-2.3.0 backtrace_rating: 4 cmdline: gs -sDEVICE=display -dGraphicsAlphaBits=4 -dDisplayFormat=2052 Antisym.eps crash_function: gx_default_copy_alpha executable: /usr/bin/gs kernel: 3.18.8-201.fc21.x86_64 runlevel: N 5 type: CCpp uid: 2019 var_log_messages: [System Logs]:\n-- Logs begin at Mon 2014-08-18 12:22:20 CEST, end at Mon 2015-03-16 16:37:54 CET. -- Truncated backtrace: Thread no. 1 (10 frames) #0 gx_default_copy_alpha at base/gdevdbit.c:441 #1 abuf_flush_block at base/gdevabuf.c:231 #2 y_transfer_next at base/gdevabuf.c:317 #3 mem_abuf_fill_rectangle at base/gdevabuf.c:399 #4 fill_slant_adjust at base/gxfill.c:1572 #5 slant_into_trapezoids__fd at base/gxfillts.h:219 #6 spot_into_trapezoids__aj_fd at base/gxfilltr.h:220 #7 spot_into_trapezoids at base/gxfill.c:2190 #8 gx_general_fill_path at base/gxfill.c:513 #9 gx_default_fill_path at base/gxfill.c:675
Created attachment 1002382 [details] File: backtrace
Created attachment 1002383 [details] File: cgroup
Created attachment 1002384 [details] File: core_backtrace
Created attachment 1002385 [details] File: dso_list
Created attachment 1002386 [details] File: limits
Created attachment 1002387 [details] File: maps
Created attachment 1002388 [details] File: open_fds
Created attachment 1002389 [details] File: proc_pid_status
Another user experienced a similar problem: I ran 'gs -sDEVICE=display -dGraphicsAlphaBits=4 -dDisplayFormat=2052 Antisym.eps'. reporter: libreport-2.3.0 backtrace_rating: 4 cmdline: gs -sDEVICE=display -dGraphicsAlphaBits=4 -dDisplayFormat=2052 Antisym.eps crash_function: gx_default_copy_alpha executable: /usr/bin/gs kernel: 3.19.1-200.fc21.x86_64 package: ghostscript-core-9.15-6.fc21 reason: gs killed by SIGSEGV runlevel: N 5 type: CCpp uid: 1001
This crashes ghostscript-8.70, ghostscript-9.05, ghostscript-9.14, and ghostscript-9.15 when compiled on F22. What's weird is that ghostscript-9.14 on F21 works fine.
I don't think this is actually causing bug #1175915, it's just an issue in ghostscript, not handling the 'display' device doing nothing when used from the command line.
(In reply to Tim Waugh from comment #11) Correct, as pointed out in https://bugzilla.redhat.com/show_bug.cgi?id=1175915#c18 ghostscript works correctly when called without any additional option.
This package has changed ownership in the Fedora Package Database. Reassigning to the new owner of this component.
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