rpm-4.5-69.i686 crash on Qt upgrade

[Jeffrey Johnson]

On Oct 2, 2012, at 1:20 PM, Jeffrey Johnson <n3npq at me.com> wrote:

> 
> On Oct 2, 2012, at 1:10 PM, Jan Rękorajski <baggins at pld-linux.org> wrote:
> 
>> On Tue, 02 Oct 2012, Jeffrey Johnson wrote:
>> 
>>> Then examine all the data that is in the rpm header, looking for
>>> a file digest that has an odd (as in 1, 3, 5, …) no. of hex digits
>>> in the string.
>>> 
>>> If the assert failure is happening only sometimes, then the
>>> root cause, not just the assert failure symptom, needs to
>>> be identified.
>>> 
>>> WYSIWYG
>>> 	rpm -qp --yaml foo*.rpm
>>> 
>> 
>> Diff between package built with rpm-4.5 and rpm5:
>> 
>> --- QtXmlPatterns-4.8.2-8.x86_64.rpm.yaml	2012-10-02 18:58:09.785203104 +0200
>> +++ QtXmlPatterns-4.8.3-6.x86_64.rpm.yaml	2012-10-02 18:58:09.805203104 +0200
>> @@ -53,14 +69,14 @@
>>  Filedigests:
>>    - ~
>>    - ~
>>    - ~
>> -    - ca8235752f514d51cf0ffeb9e341ec9d
>> -    - b35726f465b533a4406165d9e524d5bf
>> -    - 829fb2332a1dd35094a626c5610f3f74
>> +    - 46b61400c99701b4c11d11d910e028bbdator
>> +    - 53d8d681212d8e71bba13fe28b7a6faadator
>> +    - f5ca838ce74266d1803ee0659572e884dator
>>  Filelinktos:
>>    - ../lib64/qt4/bin/xmlpatternsvalidator
>> -    - libQtXmlPatterns.so.4.8.2
>> -    - libQtXmlPatterns.so.4.8.2
>> +    - libQtXmlPatterns.so.4.8.3
>> +    - libQtXmlPatterns.so.4.8.3
>>    - ~
>>    - ~
>>    - ~
>> 
>> Looks like buffer error.
> 
> Looks like a missing \0 being added on some (but not all)
> code paths.
> 

Hmmm … there's almost enough info there to start digging.

There's a missing symlink end-point when built by rpm5.

Meanwhile the trailing "…dator" seems to indicate an attempt
to read the symlink. readlink(2) also returns strings w/o
\0, though Readlink() in rpmio should terminate strings.

Lemme see if I can find where the missing \0 (and the missing symlink)
went.

todo++

73 de Jeff