Package: apache2-common Severity: normal Hi,
It appears that the Debian APR has some difficulty with shmem on 2.2 kernels. I perform the following configuration of Apache2 (debian testing package: 2.0.53-5) on a given machine with everything identical except for the difference of kernel (between official Debian 2.2.19 package and 2.4.27 package). It works perfectly with 2.4.27 and fails repeatedly as below with 2.2.19. During discussions with a RedHat engineer through dev@httpd.apache.org list, it appears that a similar shmem configuration is known to work with them on 2.2 kernels. The failure is that apache2 won't start if I include the following line in my 'apache2-modssl.conf' file: SSLSessionCache shmcb:/var/log/apache2/scache(512000) I get the following error in my logs: [error] Cannot allocate shared memory: (22)Invalid argument At first glance, bug #270524 might appear similar as it also deals with a failure to allocate shared memory, but it that case the cache file named in Apache's "SSLSessionCache" already exists. In those cases (generally from unclean shutdowns) it appeared that the solution was easy: just manually delete the file. In my case, the file doesn't exist, and I'm getting the "Invalid argument" error. Note also, that I've properly installed the Debian libmm13 package, which appears to be necessary for properly functioning shmcb, even though this doesn't appear to be widely documented. I solved my own problem by using the 2.4.27 kernel, but thought it possibly should be documented and examined for others who need to stay with 2.2. Take care, Daniel -- Daniel A. Freedman <[EMAIL PROTECTED]>, Graduate Fellow Electronic Structure Calculations, LASSP, Cornell University -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
