Hi,

i have a problem on a debian lenny machine which is not easy to track
down. It started with Apache2 mod_wsgi crashes (segfault in libapr)
after the migration from mod_python. The server crashes sporadic and
everytime with another view called, but everytime after a while (2-7
Days, depending on traffic). 

I set up a lighttpd/fastcgi/runfcgi Setup to avoid this, but now
segfaults python, imho for the same reason.

Is there any "right" way to find the reason for the segfaults beyond
letting strace dump 100s of megs of Log for a Week? We habe
dependencies to libcairo (python-cairo), librsvg, geoip and memcache,
so maybe the segfault happens in there. 

This is the Kernel log for the apache crashes : 

messages.2.gz:Jul 24 22:10:58 vshop kernel: [7816643.903087]
apache2[4686]: segfault at 28 ip 7f6f8f4c2f04 sp 7f6f84043d40 error 4
in libapr-1.so.0.2.12[7f6f8f49f000+32000] messages.2.gz:Jul 24 22:13:50
vshop kernel: [7816817.795137] apache2[4700]: segfault at 28 ip
7f6f8f4c2f04 sp 7f6f7f83ad40 error 4 in
libapr-1.so.0.2.12[7f6f8f49f000+32000] messages.4.gz:Jul  4 21:49:00
vshop kernel: [6079995.222199] apache2[7564]: segfault at 28 ip
7f98f256e655 sp 7f98e310bd40 error 4 in
libapr-1.so.0.2.12[7f98f254b000+32000] messages.4.gz:Jul  6 04:58:35
vshop kernel: [6192612.659789] apache2[10605]: segfault at 28 ip
7fae92380655 sp 7fae85f23d40 error 4 in
libapr-1.so.0.2.12[7fae9235d000+32000] messages.4.gz:Jul  6 04:58:35
vshop kernel: [6192612.701478] apache2[10565]: segfault at 28 ip
7fae92380655 sp 7fae86724d40 error 4 in
libapr-1.so.0.2.12[7fae9235d000+32000] messages.4.gz:Jul  7 04:31:08
vshop kernel: [6277733.106236] apache2[4798]: segfault at 28 ip
7f2c8d6dff04 sp 7f2c84a89d40 error 4 in
libapr-1.so.0.2.12[7f2c8d6bc000+32000] messages.4.gz:Jul  7 04:32:41
vshop kernel: [6277825.802407] apache2[4855]: segfault at 28 ip
7f2c8d6dff04 sp 7f2c84288d40 error 4 in
libapr-1.so.0.2.12[7f2c8d6bc000+32000]

Thanks in advance for any hint :) 
  Sven

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