Hello,

It looks like calling xlst_process as follows causes a crash:

select xslt_process('<root xml_tb_version="2.0" type="struct" >
<ttm type="int32" >60</ttm>
<delta type="double" >0.75</delta>
<ttm2 type="int32" >30</ttm2>
<delta2 type="double" >0.75</delta2>
<expMonthNum type="int32" >1</expMonthNum>
<assetComb type="cell" >
<item type="char" >calendar spread</item>
</assetComb>
</root>','<?xml version="1.0" encoding="UTF-8"?>
<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" version="1.0">
<xslutput method="xml" indent="yes"/>
<xsl:template match="//root/*">
<elem type="{@type}" name="{name()}">
<xsl:value-of select="."/>
<xsl:attribute name="href">
result.asp?value=<xsl:value-of select="."/>
</xsl:attribute>
</elem>
</xsl:template>
</xsl:stylesheet>','')

After the crash pglog contains the following records:





Peter Gagarinov | Head of Modelling and Analytics

Allied Testing

Hello,

It looks like calling xlst_process as follows causes a crash:

select xslt_process('<root xml_tb_version="2.0" type="struct" >
<ttm type="int32" >60</ttm>
<delta type="double" >0.75</delta>
<ttm2 type="int32" >30</ttm2>
<delta2 type="double" >0.75</delta2>
<expMonthNum type="int32" >1</expMonthNum>
<assetComb type="cell" >
<item type="char" >calendar spread</item>
</assetComb>
</root>','<?xml version="1.0" encoding="UTF-8"?>
<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" version="1.0">
<xslutput method="xml" indent="yes"/>

<xsl:template match="//root/*">
<elem type="{@type}" name="{name()}">
<xsl:value-of select="."/>
<xsl:attribute name="href">
result.asp?value=<xsl:value-of select="."/>
</xsl:attribute>
</elem>
</xsl:template>

</xsl:stylesheet>','')

After the crash pglog contains the following records:

2012-06-04 16:32:40.927 MSDLOG: server process (PID 4512) was terminated by exception 0xC0000005
2012-06-04 16:32:40.927 MSDHINT: See C include file "ntstatus.h" for a description of the hexadecimal value.
2012-06-04 16:32:40.927 MSDLOG: terminating any other active server processes

Could you please help to figure out how it can be fixed?

Thanks,
Peter


Peter Gagarinov | Head of Modelling and Analytics

Allied Testing

<pgagarinov (AT) alliedtesting (DOT) com> writes:
Hm, apparently xsltApplyStylesheet returns a NULL in this example,
and we're passing that on to xsltSaveResultToString which is not
expecting any such thing. I presume we need another error check
here, but what should the error say exactly? Can we get any info
more detailed than "failed to apply stylesheet"?

regards, tom lane

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I wrote:
Apparently not -- or at least, if libxslt provides any easy way to
extract error reports, it's not evident from the pretty-awful
documentation. I've committed a fix that just reports "failed to apply
stylesheet".

regards, tom lane

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