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



On Tue, 30 Jun 2015 09:17:06 +0100 support@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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