[uClibc 0000575]: syslog() blocks when syslogd dies

bugs at busybox.net bugs at busybox.net
Tue Jun 3 14:04:03 UTC 2008


A NOTE has been added to this issue. 
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http://busybox.net/bugs/view.php?id=575 
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Reported By:                akvadrako
Assigned To:                uClibc
====================================================================== 
Project:                    uClibc
Issue ID:                   575
Category:                   Other
Reproducibility:            always
Severity:                   minor
Priority:                   normal
Status:                     assigned
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Date Submitted:             12-01-2005 15:14 PST
Last Modified:              06-03-2008 07:04 PDT
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Summary:                    syslog() blocks when syslogd dies
Description: 
syslog() uses SIGPIPE to detect when the connection to syslogd is severed. 
However, when SIGPIPE is blocked, it blocks forever.  syslog() should use
non-blocking IO to ensure it's writes do not block.
====================================================================== 

---------------------------------------------------------------------- 
 vda - 06-03-08 07:04  
---------------------------------------------------------------------- 
Test program:

#include <syslog.h>

int main() {
        int i;
        for (i = 0; i < 10000; i++)
                syslog(LOG_INFO, "Testing,
disregard....................");
        return 0;
}

It indeed blocks if e.g. syslogd is stopped. 

Issue History 
Date Modified   Username       Field                    Change               
====================================================================== 
12-01-05 15:14  akvadrako      New Issue                                    
12-01-05 15:14  akvadrako      Status                   new => assigned     
12-01-05 15:14  akvadrako      Assigned To               => uClibc          
06-03-08 07:04  vda            Note Added: 0008064                          
======================================================================




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