Apache + php + mm problem

[Luke Bakken <luke_bakken@yahoo.com>]

Hi all,

I've attempted to figure this one out myself.  I have installed the php4
port, updated todday from -current, with the following flavor:

"imap gettext no_x11 mm mysql"

I then ran php4-enable, and added the appropriate lines to httpd.conf for
php.  However, whenever I try to start httpd, I get the following in
error_log:

PHP Fatal error:  Unable to start session mm module in Unknown on line 0

After reading through a lot of usenet, it appears that this was a recent
problem on Debian systems, and the solution had to do with increasing
shared memory, and/or deleting the /tmp/session_mm.sem file.  I first
tried to fix the problem bu adding these lines to my kernel config,
re-compiling and rebooting:

option          SEMMNI=256
option          SEMMNS=2048
option          SHMMAXPGS=8192

However, I still got the same error.  I then built a debugging httpd, and
got the following ktrace (which I can't decipher):

7838 httpd    CALL  getpid
7838 httpd    RET   getpid 7838/0x1e9e
7838 httpd    CALL  __sysctl(0xdfbfd8bc,0x2,0xdfbfd8b4,0xdfbfd8b8,0,0)
7838 httpd    RET   __sysctl 0
7838 httpd    CALL  mmap(0,0x4000000,0x3,0x1001,0xffffffff,0,0,0)
7838 httpd    RET   mmap -1 errno 12 Cannot allocate memory
7838 httpd    CALL  issetugid
7838 httpd    RET   issetugid 0
7838 httpd    CALL  open(0xdfbfcc60,0,0)
7838 httpd    NAMI  "/usr/share/nls/C/libc.cat"
7838 httpd    RET   open 3
7838 httpd    CALL  fstat(0x3,0xdfbfcbc0)
7838 httpd    RET   fstat 0
7838 httpd    CALL  mmap(0,0xe5a,0x1,0x1,0x3,0,0,0)
7838 httpd    RET   mmap 1081335808/0x4073e000
7838 httpd    CALL  close(0x3)
7838 httpd    RET   close 0
7838 httpd    CALL  munmap(0x4073e000,0xe5a)
7838 httpd    RET   munmap 0
7838 httpd    CALL  close(0)
7838 httpd    RET   close 0
7838 httpd    CALL  unlink(0xdfbfd540)
7838 httpd    NAMI  "/tmp/session_mm.sem"
7838 httpd    RET   unlink 0
7838 httpd    CALL  write(0x2,0xdfbfc918,0x48)
7838 httpd    GIO   fd 2 wrote 72 bytes
"PHP Fatal error:  Unable to start session mm module in Unknown on line 0"
7838 httpd    RET   write 72/0x48
7838 httpd    CALL  write(0x2,0xdfbfc908,0x1)
7838 httpd    GIO   fd 2 wrote 1 bytes
7838 httpd    RET   write 1
7838 httpd    CALL  exit(0xfffffffe)

If anyone has any suggestions, or requests for more info, I'd be glad to
supply it!

Thanks!
Luke Bakken