On 9/17/15 8:13 AM, Vincent Veyron wrote:
> Sep 17 15:08:31 eeepc kernel: [ 7737.194398] traps: /usr/sbin/apach[8769]
> general protection ip:7f1199d45d70 sp:7ffe7e3dc410 error:0 in
> PPAddr.so[7f1199d45000+2000]
I saw these first as well on debian jessie. I fixed it by switching
from mpm-event to mpm-prefork.
I will say that I find debian's packaging to makes it pretty difficult
with Apache::Test. Apache::Test fails to generate a working config
because it does not source the Include files in
/etc/apache2/mods-enabled (among other things). I much prefer to just
build apache from scratch, which also eliminates the possibility that a
vendor applied patch is causing any problems.
Here is how I produced the panic on jessie, using nothing but vendor
packages if you *really* do want to reproduce this:
In fresh debian 8/jessie do this (I used a vagrant box):
sudo apt-get update
sudo apt-get install apache2-mpm-prefork libapache2-request-perl \
libapache2-mod-perl2 libapache2-mod-apreq2 \
apache2-dev git libtrycatch-perl
git clone git://github.com/mschout/modperl-trycatch-bug
cd modperl-trycatch-bug
# now we have to jump through several hoops to make Apache::Test work
# make symlinks that apache2.conf needs *sigh*
ln -s /etc/apache2/mods-enabled t/mods-enabled
ln -s /etc/apache2/conf-enabled t/conf-enabled
# disable mpm-event and use mpm-prefork instead
cd /etc/apache2/mods-enabled/
sudo rm -f mpm_event.*
sudo ln -s ../mods-available/mpm_prefork.conf mpm_prefork.conf
sudo ln -s ../mods-available/mpm_prefork.load mpm_prefork.load
cd -
# change IncludeOptional to Include
sudo sed -i 's/IncludeOptional/Include/' /etc/apache2/apache2.conf
# need to source apache2 envvars
source /etc/apache2/envvars
# now actually run the test
perl Makefile.PL -apxs /usr/bin/apxs2 \
-httpd_conf /etc/apache2/apache2.conf
make test
... which fails ...
t/logs/error_log contains:
[Thu Sep 17 20:08:09.333854 2015] [perl:error] [pid 10319] [client
127.0.0.1:60632] panic: attempt to copy freed scalar 7f4e0971ec80 to
7f4e0971eb30 at
/home/vagrant/modperl-trycatch-bug/blib/lib/Apache/TryCatch.pm line 20.\n
Regards,
Michael Schout
