Control: notfound -1 c2esp/27-4 Control: affects -1 c2esp Control: found -1 ghostscript/9.28~~rc1~dfsg-1 Control: retitle -1 gs segfaults in c2esp filter chain Hi Paul, thanks for the detailed report. Le jeudi, 12 septembre 2019, 19.27:46 h CEST Paul Gevers a écrit : > Dear maintainers, > > With a recent upload of ghostscript the autopkgtest of c2esp timeouts > [1] in testing when that autopkgtest is run with the binary packages of > ghostscript from unstable. It passes when run with only packages from > testing. In tabular form: > pass fail > ghostscript from testing 9.28~~rc2~dfsg-1 > c2esp from testing 27-4 > all others from testing from testing > > The autopkgtest of c2esp also times out in unstable since the upload of > ghostscript. > > Due to the nature of this issue, I filed this bug report against both > packages. Can you please investigate the situation and reassign the bug > to the right package? Sure. So… It fails with the c2espC filter only, the c2esp filter seems fine. It asks for the following filter chain to process a PDF file such as /usr/share/cups/data/form_russian.pdf: /usr/lib/cups/filter/pdftopdf /usr/lib/cups/filter/gstoraster /usr/lib/cups/filter/c2espC In this chain, from the CUPS logs: /usr/lib/cups/filter/gstoraster stopped with status 1 And from my kernel log: Sep 21 09:10:37 gyllingar kernel: [ 9755.656484] gs[10134]: segfault at 7f93b77ea000 ip 00007f93b91b0e2a sp 00007ffe368515e0 error 4 in libgs.so.9.28[7f93b9135000+367000] Sep 21 09:10:37 gyllingar kernel: [ 9755.656492] Code: 01 48 8d 5c 44 42 31 c0 8b 94 24 10 01 00 00 45 31 f6 85 d2 0f 8e ce 01 00 00 66 0f 1f 44 00 00 48 8b 44 24 18 44 89 74 24 38 <42> 0f b7 34 70 89 f0 8d 50 01 81 e2 fe 00 00 00 0f 85 b0 00 00 00 … but I can't manage to reproduce this failure by manually running the filters. :( But when I go through cups, the ghostscript segfault is repeatable. So it really seems like a ghostscript bug. The corresponding lines from cups' error log are the following: D [21/Sep/2019:09:20:30 +0200] [Job 2201] Ghostscript using Any-Part-of-Pixel method to fill paths. D [21/Sep/2019:09:20:30 +0200] [Job 2201] Ghostscript command line: gs -dQUIET -dPARANOIDSAFER -dNOPAUSE -dBATCH -dNOINTERPOLATE -dNOMEDIAATTRS -dShowAcroForm -sstdout=%stderr -sOutputFile=%stdout -sDEVICE=cups -r600x600 -dDEVICEWIDTHPOINTS=595 -dDEVICEHEIGHTPOINTS=842 -dcupsBitsPerColor=8 -dcupsColorOrder=0 -dcupsColorSpace=4 -scupsPageSizeName=A4 -I/usr/share/cups/fonts -c \'<</.HWMargins[3.000000 3.000000 3.000000 3.000000] /Margins[0 0]>>setpagedevice\' -f -_ D [21/Sep/2019:09:20:30 +0200] [Job 2201] envp[0]=\"CUPS_CACHEDIR=/var/cache/cups\" D [21/Sep/2019:09:20:30 +0200] [Job 2201] envp[1]=\"CUPS_DATADIR=/usr/share/cups\" D [21/Sep/2019:09:20:30 +0200] [Job 2201] envp[2]=\"CUPS_DOCROOT=/usr/share/cups/doc-root\" D [21/Sep/2019:09:20:30 +0200] [Job 2201] envp[3]=\"CUPS_FONTPATH=/usr/share/cups/fonts\" D [21/Sep/2019:09:20:30 +0200] [Job 2201] envp[4]=\"CUPS_REQUESTROOT=/var/spool/cups\" D [21/Sep/2019:09:20:30 +0200] [Job 2201] envp[5]=\"CUPS_SERVERBIN=/usr/lib/cups\" D [21/Sep/2019:09:20:30 +0200] [Job 2201] envp[6]=\"CUPS_SERVERROOT=/etc/cups\" D [21/Sep/2019:09:20:30 +0200] [Job 2201] envp[7]=\"CUPS_STATEDIR=/run/cups\" D [21/Sep/2019:09:20:30 +0200] [Job 2201] envp[8]=\"HOME=/var/spool/cups/tmp\" D [21/Sep/2019:09:20:30 +0200] [Job 2201] envp[9]=\"PATH=/usr/lib/cups/filter:/usr/bin:/usr/sbin:/bin:/usr/bin\" D [21/Sep/2019:09:20:30 +0200] [Job 2201] envp[10]=\"SERVER_ADMIN=root@gyllingar\" D [21/Sep/2019:09:20:30 +0200] [Job 2201] envp[11]=\"SOFTWARE=CUPS/2.3.0\" D [21/Sep/2019:09:20:30 +0200] [Job 2201] envp[12]=\"USER=root\" D [21/Sep/2019:09:20:30 +0200] [Job 2201] envp[13]=\"CUPS_MAX_MESSAGE=2047\" D [21/Sep/2019:09:20:30 +0200] [Job 2201] envp[14]=\"CUPS_SERVER=/var/run/cups/cups.sock\" D [21/Sep/2019:09:20:30 +0200] [Job 2201] envp[15]=\"CUPS_ENCRYPTION=IfRequested\" D [21/Sep/2019:09:20:30 +0200] [Job 2201] envp[16]=\"IPP_PORT=631\" D [21/Sep/2019:09:20:30 +0200] [Job 2201] envp[17]=\"CHARSET=utf-8\" D [21/Sep/2019:09:20:30 +0200] [Job 2201] envp[18]=\"LANG=fr_CH.UTF-8\" D [21/Sep/2019:09:20:30 +0200] [Job 2201] envp[19]=\"PPD=/etc/cups/ppd/test-printer0.ppd\" D [21/Sep/2019:09:20:30 +0200] [Job 2201] envp[20]=\"RIP_MAX_CACHE=128m\" D [21/Sep/2019:09:20:30 +0200] [Job 2201] envp[21]=\"CONTENT_TYPE=application/pdf\" D [21/Sep/2019:09:20:30 +0200] [Job 2201] envp[22]=\"DEVICE_URI=file:///dev/null\" D [21/Sep/2019:09:20:30 +0200] [Job 2201] envp[23]=\"PRINTER_INFO=test-printer0\" D [21/Sep/2019:09:20:30 +0200] [Job 2201] envp[24]=\"PRINTER_LOCATION=\" D [21/Sep/2019:09:20:30 +0200] [Job 2201] envp[25]=\"PRINTER=test-printer0\" D [21/Sep/2019:09:20:30 +0200] [Job 2201] envp[26]=\"PRINTER_STATE_REASONS=none\" D [21/Sep/2019:09:20:30 +0200] [Job 2201] envp[27]=\"CUPS_FILETYPE=document\" D [21/Sep/2019:09:20:30 +0200] [Job 2201] envp[28]=\"FINAL_CONTENT_TYPE=application/vnd.cups-raster\" D [21/Sep/2019:09:20:30 +0200] [Job 2201] envp[29]=\"AUTH_INFO_REQUIRED=none\" D [21/Sep/2019:09:20:30 +0200] [Job 2201] Start rendering... D [21/Sep/2019:09:20:30 +0200] [Job 2201] Set job-printer-state-message to "Start rendering...", current level=INFO D [21/Sep/2019:09:20:30 +0200] [Job 2201] Processing page 1... D [21/Sep/2019:09:20:30 +0200] [Job 2201] Set job-printer-state-message to "Processing page 1...", current level=INFO D [21/Sep/2019:09:20:31 +0200] [Job 2201] PID 11684 (/usr/lib/cups/filter/gstoraster) stopped with status 1. Using snapshot.debian.org: * ghostscript 9.27~dfsg-3.1 works * ghostscript 9.28~~rc1~dfsg-1 and all the later versions segfault So… There's clearly a regression in ghostscript 9.28 that started segfaulting in the c2esp filter chain. But I can't manage to reproduce it outside of the "cups + c2esp + cups-filters (gstoraster) + ghostscript" environment. Brian; Till: any idea? Cheers, Didier
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