>Number: 4453 >Category: general >Synopsis: F_SETLKW: Error, then server brings Linux down >Confidential: no >Severity: critical >Priority: medium >Responsible: apache >State: open >Class: sw-bug >Submitter-Id: apache >Arrival-Date: Fri May 21 11:30:01 PDT 1999 >Last-Modified: >Originator: [EMAIL PROTECTED] >Organization: apache >Release: 1.3.6 >Environment: RedHat 5.2 Linux 2.0.36 #1 Tue Dec 29 13:11:13 EST 1998 i686 unknown default kernel, default kernel config no NFS, no custom modules in apache >Description: Server has relatively big load (evarage rate is about ~20 hits/sec). Today I've got following in error_log:
----------- [Fri May 21 15:46:25 1999] [emerg] (14)Bad address: fcntl: F_SETLKW: Error getting accept lock, exiting! Perhaps you need to use the LockFile directive to place your lock file on a local disk! [Fri May 21 15:46:26 1999] [alert] Child 21893 returned a Fatal error... Apache is exiting! [Fri May 21 15:50:30 1999] [error] (32)Broken pipe: accept: (client socket) [Fri May 21 15:50:32 1999] [error] (32)Broken pipe: accept: (client socket) ... ----------- Since that moment server began to slowdown of request processing, but load increased. This server has MaxClients 200, and I often see that all child are busy, but even in that situation there is no swaping and no big load. At 16:11 Linux gone down (or may be in swap?). Uptime was about a month, and I don't see any other reasons for server to go down. >How-To-Repeat: I don't know. >Fix: In fact, I think that error message is Linux bug, but all that came after it is sertanly apache bug. I do think it is nessesary to test and correct Apache behavour in case of such error. >Audit-Trail: >Unformatted: [In order for any reply to be added to the PR database, ] [you need to include <[EMAIL PROTECTED]> in the Cc line ] [and leave the subject line UNCHANGED. This is not done] [automatically because of the potential for mail loops. ] [If you do not include this Cc, your reply may be ig- ] [nored unless you are responding to an explicit request ] [from a developer. ] [Reply only with text; DO NOT SEND ATTACHMENTS! ]
