Package: apache2 Version: 2.2.9-6 Severity: important
Apache2 cannot send more than a few kilobytes of a file mounted over CIFS. This causes most web browsers to choke when downloading, anything larger than a small HTML file. Wget will eventually succeed, attempting to get the file repeatedly, accessing a few kilobytes at a time. Grabbing the file with wget will yield something like this: wget http://<server>/foo.pdf --2008-08-11 10:04:44-- http://<server>/foo.pdf Resolving <server>... <IP> Connecting to <server>|<IP>|:80... connected. HTTP request sent, awaiting response... 200 OK Length: 52503 (51K) [application/pdf] Saving to: `foo.pdf' 22% [=======> ] 11,584 --.-K/s in 0.06s 2008-08-11 10:04:44 (176 KB/s) - Connection closed at byte 11584. Retrying. --2008-08-11 10:04:45-- (try: 2) http://<server>/foo.pdf Connecting to <server>|<IP>|:80... connected. HTTP request sent, awaiting response... 206 Partial Content Length: 52503 (51K), 40919 (40K) remaining [application/pdf] Saving to: `foo.pdf' 43% [++++++++=======> ] 22,724 --.-K/s in 0s 2008-08-11 10:04:45 (315 MB/s) - Connection closed at byte 22724. Retrying. <snip> ...and this will continue until the file is downloaded, sometimes. Files on the local disk are unaffected. After poking around for a while I came across this: http://httpd.apache.org/docs/2.2/mod/core.html#enablesendfile Disabling sendfile functionality on the directories in question provided an adequate workaround. This was working as of 2.2.8-4~lenny1, but as of this morning I was notified that some files could not be downloaded from our webserver. That being said, I'm not sure when the breakage happened - sometime between 2.2.8-4~lenny1 and 2.2.9-6. Alternatively is the 2.6.25 kernel update to blame? If so maybe the kernel team should be cc'd on this? Every other program (e.g., cp or scp) can access the files mounted over CIFS. Apache2 is the only program having issues. The CIFS server is running Solaris 10, Samba 3.0.28. This problem also appears to have reared it head somewhat recently on Fedora: http://www.omgili.com/mailinglist/linux-cifs-client/lists/samba/org/A4077CD1A935AA47AD3F4141EB2EE78F9723F6hermes.html -- System Information: Debian Release: lenny/sid APT prefers testing APT policy: (500, 'testing') Architecture: amd64 (x86_64) Kernel: Linux 2.6.25-2-amd64 (SMP w/2 CPU cores) Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8) Shell: /bin/sh linked to /bin/bash -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
