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Re: gzip segmentation fault - but only some times



Chris wrote:
Hi all,

I have a daily backup script where I backup a database and later in the process, compress the backup files using

for i in /home/tmp/*dbk
do
        j=${i##/home/tmp/}.gz
        gzip -v < ${i} > /home/public/backup/stage/${j}
done

This usually works just fine (the compressed files are getting created in a different filesystem from the uncompressed backup files). But every few days, gzip crashes during the process and I get this output in the email cron sends:

73.6%
72.8%
72.6%
73.0%
72.5%
/home/root/bin/backup: line 32: 27749 Segmentation fault gzip -v <${i} >/home/public/backup/stage/${j}
42.4%
46.6%
76.5%


Has anybody seen this before? As you can see, 7 of the files are getting compressed just fine, one doesn't want to. It still outputs the compression percentage (42.4%) - but the output file is garbage:

gunzip < phone-6-20041219.odbk.gz > /tmp/x.odbk

gunzip: stdin: unexpected end of file

Each of the input files (except the last one) is 2 GB (minus 1 byte) in size.

Machine specs: FC2 with all the latest updates, X not running on the console, AMD 3200+ CPU, 1.5 GB memory, ASUS motherboard

Any help would be appreciated.

How big is the the source file you are trying to compress?


Paul.


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