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Bug#790562: Ghostscript: File has unbalanced q/Q operators (too many Q's)

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sup...@compress-pdf.co.uk

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Jun 30, 2015, 4:30:03 AM6/30/15
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package: ghostscript
version: 9.06~dfsg-2

When running ghostscript, the following errors are being generated in
great quantity:
stderr: " **** File has unbalanced q/Q operators (too many Q's) ****"

resulting in log files filling the disk.

Additionally, kernel soft lockup warnings appear:
kernel:[406101.560749] BUG: soft lockup - CPU#4 stuck for 31s! [gs:21647]


Command being run is:

gs -sDEVICE=pdfwrite -dCompatibilityLevel=1.4 -dPDFSETTINGS=/screen
-dNOPAUSE -dQUIET -dBandBufferSpace=500000000 -dBandSpace=1000000000
-dBATCH -sOutputFile='out.pdf' 'in.pdf'


It may be related to this bug on the ghostscript bug tracker flagged as
resolved:
http://bugs.ghostscript.com/show_bug.cgi?id=694310


Running on:
3.16.0-4-amd64 #1 SMP Debian 3.16.7-ckt11-1 (2015-05-24) x86_64 GNU/Linux


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Steven Robbins

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Jan 8, 2024, 12:40:05 AM1/8/24
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On Tue, 30 Jun 2015 09:17:06 +0100 sup...@compress-pdf.co.uk wrote:
> package: ghostscript
> version: 9.06~dfsg-2
>
> When running ghostscript, the following errors are being generated in
> great quantity:
> stderr: " **** File has unbalanced q/Q operators (too many Q's) ****"
>
> resulting in log files filling the disk.
>
> Additionally, kernel soft lockup warnings appear:
> kernel:[406101.560749] BUG: soft lockup - CPU#4 stuck for 31s! [gs:21647]
>
>
> Command being run is:
>
> gs -sDEVICE=pdfwrite -dCompatibilityLevel=1.4 -dPDFSETTINGS=/screen
> -dNOPAUSE -dQUIET -dBandBufferSpace=500000000 -dBandSpace=1000000000
> -dBATCH -sOutputFile='out.pdf' 'in.pdf'
>
>
> It may be related to this bug on the ghostscript bug tracker flagged as
> resolved:
> http://bugs.ghostscript.com/show_bug.cgi?id=694310

In the absence of an example file, I will assume you are correct that this is
the upstream bug noted. That fix is now in Debian, so I'll close this bug.
-Steve
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