strace -ttt apache2 -X

--- lines deleted, apache2 starting up ...
--- below lines are output servicing request for file on shared folder

1322698953.576319 epoll_wait(15, {{EPOLLIN, {u32=138144968, u64=593327604409035976}}}, 2, -1) = 1
1322698963.828882 accept(3, {sa_family=AF_INET, sin_port=htons(51190), sin_addr=inet_addr("192.168.56.1")}, [16]) = 16
1322698963.829097 semop(163841, 0xb776ad66, 1) = 0
1322698963.829886 getsockname(16, {sa_family=AF_INET, sin_port=htons(80), sin_addr=inet_addr("192.168.56.103")}, [16]) = 0
1322698963.831082 fcntl64(16, F_GETFL)  = 0x2 (flags O_RDWR)
1322698963.831557 fcntl64(16, F_SETFL, O_RDWR|O_NONBLOCK) = 0
1322698963.832297 read(16, "GET /files/news/crcns-neuroinfor"..., 8000) = 596
1322698963.832900 gettimeofday({1322698963, 832974}, NULL) = 0
1322698963.833476 stat64("/mnt/crcns-data/downloads/site-files/news/crcns-neuroinformatics-article.pdf", {st_mode=S_IFREG|0644, st_size=134452, ...}) = 0
1322698963.889829 open("/.htaccess", O_RDONLY|O_LARGEFILE) = -1 ENOENT (No such file or directory)
1322698963.890586 open("/mnt/.htaccess", O_RDONLY|O_LARGEFILE) = -1 ENOENT (No such file or directory)
1322698963.892070 open("/mnt/crcns-data/.htaccess", O_RDONLY|O_LARGEFILE) = -1 ENOENT (No such file or directory)
1322698963.893433 open("/mnt/crcns-data/downloads/.htaccess", O_RDONLY|O_LARGEFILE) = -1 ENOENT (No such file or directory)
1322698963.895494 open("/mnt/crcns-data/downloads/site-files/.htaccess", O_RDONLY|O_LARGEFILE) = -1 ENOENT (No such file or directory)
1322698963.898602 open("/mnt/crcns-data/downloads/site-files/news/.htaccess", O_RDONLY|O_LARGEFILE) = -1 ENOENT (No such file or directory)
1322698963.899163 open("/mnt/crcns-data/downloads/site-files/news/crcns-neuroinformatics-article.pdf/.htaccess", O_RDONLY|O_LARGEFILE) = -1 ENOTDIR (Not a directory)
1322698963.900852 open("/etc/hosts", O_RDONLY|0x80000 /* O_??? */) = 18
1322698963.901871 fstat64(18, {st_mode=S_IFREG|0644, st_size=295, ...}) = 0
1322698963.903142 mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0xb68af000
1322698963.904098 read(18, "# File:\n# /etc/hosts\n# \n# For cr"..., 4096) = 295
1322698963.905286 read(18, "", 4096)    = 0
1322698963.906090 close(18)             = 0
1322698963.906605 munmap(0xb68af000, 4096) = 0
1322698963.907259 open("/etc/ld.so.cache", O_RDONLY) = 18
1322698963.908239 fstat64(18, {st_mode=S_IFREG|0644, st_size=19175, ...}) = 0
1322698963.909117 mmap2(NULL, 19175, PROT_READ, MAP_PRIVATE, 18, 0) = 0xb68ab000
1322698963.909117 close(18)             = 0
1322698963.909867 access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory)
1322698963.910467 open("/lib/libnss_dns.so.2", O_RDONLY) = 18
1322698963.910977 read(18, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0\3\0\1\0\0\0\220\v\0"..., 512) = 512
1322698963.912001 fstat64(18, {st_mode=S_IFREG|0644, st_size=17884, ...}) = 0
1322698963.913239 mmap2(NULL, 20616, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 18, 0) = 0xb68a5000
1322698963.914163 mmap2(0xb68a9000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 18, 0x3) = 0xb68a9000
1322698963.914846 close(18)             = 0
1322698963.915722 munmap(0xb68ab000, 19175) = 0
1322698963.916254 stat64("/etc/resolv.conf", {st_mode=S_IFREG|0644, st_size=175, ...}) = 0
1322698963.917129 gettimeofday({1322698963, 917278}, NULL) = 0
1322698963.918107 socket(PF_INET, SOCK_DGRAM, IPPROTO_IP) = 18
1322698963.918615 connect(18, {sa_family=AF_INET, sin_port=htons(53), sin_addr=inet_addr("192.168.53.1")}, 28) = 0
1322698963.919173 fcntl64(18, F_GETFL)  = 0x2 (flags O_RDWR)
1322698963.919785 fcntl64(18, F_SETFL, O_RDWR|O_NONBLOCK) = 0
1322698963.920498 gettimeofday({1322698963, 920655}, NULL) = 0
1322698963.920975 poll([{fd=18, events=POLLOUT, revents=POLLOUT}], 1, 0) = 1
1322698963.922166 send(18, "\'>\1\0\0\1\0\0\0\0\0\0\0011\00256\003168\003192\7in-a"..., 43, MSG_NOSIGNAL) = 43
1322698963.923385 poll([{fd=18, events=POLLIN, revents=POLLIN}], 1, 5000) = 1
1322698963.936300 ioctl(18, FIONREAD, [43]) = 0
1322698963.937481 recvfrom(18, "\'>\205\203\0\1\0\0\0\0\0\0\0011\00256\003168\003192\7"..., 1024, 0, {sa_family=AF_INET, sin_port=htons(53), sin_addr=inet_addr("192.168.53.1")}, [16]) = 43
1322698963.938829 close(18)             = 0
1322698963.939921 open("/mnt/crcns-data/downloads/site-files/news/crcns-neuroinformatics-article.pdf", O_RDONLY|O_LARGEFILE) = 18
1322698963.942795 setsockopt(16, SOL_TCP, TCP_CORK, [1], 4) = 0
1322698963.943860 writev(16, [{"HTTP/1.1 200 OK\r\nDate: Thu, 01 D"..., 368}], 1) = 368
1322698963.944845 sendfile(16, 18, [0], 134452) = -1 EPROTO (Protocol error)
1322698963.947758 setsockopt(16, SOL_TCP, TCP_CORK, [0], 4) = 0
1322698963.948434 read(16, 0x83ccd28, 8000) = -1 EAGAIN (Resource temporarily unavailable)
1322698963.949125 write(8, "192.168.56.1 - - [01/Dec/2011:00"..., 266) = 266
1322698963.950137 close(16)             = 0
1322698963.950572 read(5, 0xbfe99997, 1) = -1 EAGAIN (Resource temporarily unavailable)
1322698963.956442 close(18)             = 0
1322698963.959185 semop(163841, 0xb776ad60, 1) = 0
1322698963.959614 epoll_wait(15, 


83bec58, 2, -1) = -1 EINTR (Interrupted system call)
1322698977.690271 --- SIGTERM (Terminated) @ 0 (0) ---
1322698977.690502 sigreturn()           = ? (mask now [])
1322698977.691613 getpgrp()             = 4616
1322698977.692485 kill(-4616, SIGTERM)  = 0

--- output deleted, apache2 shutting down ...


==================

/var/log/messages file:

2011-12-01T00:22:43.946640+00:00 crcns kernel: [  661.466761] VbglR0HGCMInternalCall: vbglR0HGCMInternalPreprocessCall failed. rc=-2
2011-12-01T00:22:43.946757+00:00 crcns kernel: [  661.467346] VBoxGuestCommonIOCtl: HGCM_CALL: 64 Failed. rc=-2.