/tmp is not a special volume on my system, and has plenty of room for a 2MB file: sh-3.2# df -h Filesystem Size Used Avail Capacity iused ifree %iused Mounted on /dev/disk0s2 184Gi 170Gi 14Gi 93% 44604554 3741719 92% / devfs 329Ki 329Ki 0Bi 100% 1138 0 100% /dev map -hosts 0Bi 0Bi 0Bi 100% 0 0 100% /net map auto_home 0Bi 0Bi 0Bi 100% 0 0 100% /home map -fstab 0Bi 0Bi 0Bi 100% 0 0 100% /Network/Servers /dev/disk0s5 442Gi 353Gi 89Gi 80% 92513182 23266901 80% /Volumes/Shared localhost:/18XTcmWVPTgvjvav7dUs5F 184Gi 184Gi 0Bi 100% 0 0 100% /Volumes/MobileBackups
> On Dec 27, 2015, at 4:18 PM, Jim Jagielski <j...@jagunet.com> wrote: > > Are you *sure* that /tmp really has enough space? > >> On Dec 27, 2015, at 8:47 AM, Sorin Manolache <sor...@gmail.com> wrote: >> >> On 2015-12-25 19:36, Tapple Gao wrote: >>> Hi. I’m trying to get mod_tile working on the builtin apache in Mac OS X El >>> Capitan. I am running into a problem with apr_shm_create failing to >>> allocate memory during ap_hook_post_config: >>> [Fri Dec 25 12:09:17.898197 2015] [tile:error] [pid 22431] Successfully >>> create shared memory segment size 888 on file /tmp/httpd_shm.22431 >>> [Fri Dec 25 12:09:17.898285 2015] [tile:error] [pid 22431] (12)Cannot >>> allocate memory: Failed to create shared memory segment size 2401448 on >>> file /tmp/httpd_shm_delay.22431 >>> >>> Is there something I need to configure to get this shared memory working, >>> or increase the limit? This module is most often run on Ubuntu linux, where >>> it’s been running for years to power openstreetmap.org >>> >>> >>> /* >>> * Create a unique filename using our pid. This information is >>> * stashed in the global variable so the children inherit it. >>> * TODO get the location from the environment $TMPDIR or somesuch. >>> */ >>> shmfilename = apr_psprintf(pconf, "/tmp/httpd_shm.%ld", (long >>> int)getpid()); >>> shmfilename_delaypool = apr_psprintf(pconf, "/tmp/httpd_shm_delay.%ld", >>> (long int)getpid()); >> >> >> I think that the location of the shmfile must be on a filesystem of a >> special type, namely tmpfs, which maps in memory and not on disk. Execute >> "mount" and check if you have such filesystems mounted. For example on my >> Linux machine: >> >> $ mount >> /dev/sda6 on / type ext4 (rw,relatime,errors=remount-ro,data=ordered) >> tmpfs on /run/shm type tmpfs (rw,nosuid,nodev,noexec,relatime,size=398160k) >> /dev/sda9 on /tmp type ext4 (rw,relatime,data=ordered) >> >> As you see, / and /tmp are of disk partitions while /run/shm has a >> filesystem of type tmpfs. >> >> I suggest to change the code and use a different location from /tmp/... On >> Linux the shared memory is often created in /run/shm/*. I have no experience >> with Mac OS X. >> >> The cleanest way would be to implement what's written in the commentary of >> the code above, namely the possibility to specify the path by an evrionment >> variable or from a configuration directive. >> >> Sorin >> >
