On Sun, Dec 11, 2011 at 5:01 PM, Jonathan Nieder <jrnie...@gmail.com> wrote:
> Hi Ralph, > > Ralph A. Smith wrote: > > > ghostscript 8.71 segfaults when invoked by CUPS (via the pdftoraster > filter) > > to print to a Seiko Smart Label Printer (SLP) using the PPD provided > > by Seiko (at www.siibusinessproducts.com). The offending ghostscript > command > > (with standard input from pstopdf|pdftopdf) is > > > > /usr/bin/gs -dQUIET -dPARANOIDSAFER -dNOPAUSE -dBATCH -sDEVICE=cups > > -sstdout=%stderr -sOutputFile=%stdout -I/usr/share/cups/fonts > > -r203x203 -dDEVICEWIDTHPOINTS=236 -dDEVICEHEIGHTPOINTS=68 > > -dcupsBitsPerColor=1 -dcupsColorOrder=0 -dcupsColorSpace=3 > > -scupsPageSizeName=AddressSmall -c -f - > > > > If the PARANOIDSAFER option is removed, the command succeeds, but it > still > > fails with SAFER instead. > > I can't reproduce this (I tried on an amd64 mostly-sid system with > ghostscript and libgs8 8.71~dfsg2-9 and cups and libs > 1.4.4-7+squeeze1). Any ideas? > > If no other obvious ways to make progress come up, here are some > hints: > > - Please provide a PDF file and exact command line to reproduce it on > a machine without the SLP driver installed. (The instructions > would have to include installing the SLP driver if that's the only > way to reproduce it.) > > - If you look at "dmesg" output, does it say which DSO segfaulted? > > - Rebuilding ghostscript with DEB_BUILD_OPTIONS='debug nostrip' and > getting a backtrace by running gs with "gdb --args" as described > at [1] would also be helpful. > > - Anyone who can reproduce this can take over what I was going to > try, which is finding the patch that fixed the problem at > git://git.ghostscript.com/ghostpdl.git using "git bisect". > > Hope that helps, > Jonathan > > [1] http://wiki.debian.org/HowToGetABacktrace > Here is an archive with a sample input PDF, the PPD file (the license in the Seiko package is apparently GPL2, so I think it is ok to include that), and the offending command. My syslog shows the following: gs[7086]: segfault at 0 ip 00007fc52aa80e80 sp 00007fff73163c60 error 6 in libgs.so.8.71[7fc52a73f000+467000] and when run under gdb I observe this (with the regular /usr/bin/gs; I haven't had time to build in extra symbols): Program received signal SIGSEGV, Segmentation fault. 0x00007ffff760de80 in bits_fill_rectangle () from /usr/lib/libgs.so.8 (gdb) bt #0 0x00007ffff760de80 in bits_fill_rectangle () from /usr/lib/libgs.so.8 #1 0x00007ffff767ef2b in ?? () from /usr/lib/libgs.so.8 #2 0x00007ffff76417f5 in ?? () from /usr/lib/libgs.so.8 #3 0x00007ffff766fc28 in gx_default_fillpage () from /usr/lib/libgs.so.8 #4 0x00007ffff7629a62 in gs_fillpage () from /usr/lib/libgs.so.8 #5 0x00007ffff740e673 in ?? () from /usr/lib/libgs.so.8 #6 0x00007ffff740f32b in gs_interpret () from /usr/lib/libgs.so.8 #7 0x00007ffff7404415 in gs_main_run_string_end () from /usr/lib/libgs.so.8 #8 0x00007ffff740555e in ?? () from /usr/lib/libgs.so.8 #9 0x00007ffff7405d4a in ?? () from /usr/lib/libgs.so.8 #10 0x00007ffff74072c0 in gs_main_init_with_args () from /usr/lib/libgs.so.8 #11 0x0000000000400aec in main () - regards, Ralph
gsbug.tgz
Description: GNU Zip compressed data
