Bug 150475
| Summary: | Random Segfault, tested on multiple machines | ||||||
|---|---|---|---|---|---|---|---|
| Product: | [Fedora] Fedora | Reporter: | VaibhaV Sharma <vaibhav> | ||||
| Component: | webalizer | Assignee: | Joe Orton <jorton> | ||||
| Status: | CLOSED INSUFFICIENT_DATA | QA Contact: | |||||
| Severity: | medium | Docs Contact: | |||||
| Priority: | medium | ||||||
| Version: | 3 | CC: | achitnis, mattdm | ||||
| Target Milestone: | --- | ||||||
| Target Release: | --- | ||||||
| Hardware: | i686 | ||||||
| OS: | Linux | ||||||
| Whiteboard: | |||||||
| Fixed In Version: | Doc Type: | Bug Fix | |||||
| Doc Text: | Story Points: | --- | |||||
| Clone Of: | Environment: | ||||||
| Last Closed: | 2008-02-07 00:39:50 UTC | Type: | --- | ||||
| Regression: | --- | Mount Type: | --- | ||||
| Documentation: | --- | CRM: | |||||
| Verified Versions: | Category: | --- | |||||
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |||||
| Cloudforms Team: | --- | Target Upstream Version: | |||||
| Embargoed: | |||||||
| Attachments: |
|
||||||
Can you attach the config file you've used to reproduce this; does it work with the stock webalizer.conf? Created attachment 111742 [details]
webalizer.conf that is causing webalizer to segfault
It does not seem to segfault with the standard config file. It segfaults only with custom config files that most specifically this one. There is nothing out of the ordinary in this config file too because this is a modified copy of the sample .conf. Fedora Core 3 is now maintained by the Fedora Legacy project for security updates only. If this problem is a security issue, please reopen and reassign to the Fedora Legacy product. If it is not a security issue and hasn't been resolved in the current FC5 updates or in the FC6 test release, reopen and change the version to match. Thank you! Fedora Core 3 is not maintained anymore. Setting status to "INSUFFICIENT_DATA". If you can reproduce this bug in the current Fedora release please reopen this bug and assign it to the corresponding Fedora version. |
From Bugzilla Helper: User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.7.5) Gecko/20041111 Firefox/1.0 Description of problem: Webalizer randomly segfaults while reading the configuration file. Found this by running it with strace - ------------ set_tid_address(0xb7fe8928) = 5920 rt_sigaction(SIGRTMIN, {0xa073c0, [], SA_RESTORER|SA_SIGINFO, 0xa0e8d0}, NULL, 8) = 0 rt_sigaction(SIGRT_1, {0xa07430, [], SA_RESTORER|SA_RESTART|SA_SIGINFO, 0xa0e8d0}, NULL, 8) = 0 rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 getrlimit(RLIMIT_STACK, {rlim_cur=10240*1024, rlim_max=RLIM_INFINITY}) = 0 _sysctl({{CTL_KERN, KERN_VERSION}, 2, 0xbff6d0c8, 30, (nil), 0}) = 0 brk(0) = 0x9234000 brk(0x9255000) = 0x9255000 access("webalizer.conf", F_OK) = 0 open("webalizer.conf", O_RDONLY) = 3 fstat64(3, {st_mode=S_IFREG|0644, st_size=18181, ...}) = 0 mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0xb7fff000 read(3, "#\n# Sample Webalizer configurati"..., 4096) = 4096 read(3, "to the URL table items. This al"..., 4096) = 4096 --- SIGSEGV (Segmentation fault) @ 0 (0) --- +++ killed by SIGSEGV +++ ------------ First I thought this was a memory related problem, bad ram or something. But it segfaults at the *same* line when run on multiple machines. Tried running it through gdb - --------------- [vsharma@dalfry webalizer]$ gdb --args webalizer -d -c webalizer.conf GNU gdb Red Hat Linux (6.1post-1.20040607.43rh) Copyright 2004 Free Software Foundation, Inc. GDB is free software, covered by the GNU General Public License, and you are welcome to change it and/or distribute copies of it under certain conditions. Type "show copying" to see the conditions. There is absolutely no warranty for GDB. Type "show warranty" for details. This GDB was configured as "i386-redhat-linux-gnu"...(no debugging symbols found)...Using host libthread_db library "/lib/tls/libthread_db.so.1". (gdb) run Starting program: /usr/bin/webalizer -d -c webalizer.conf (no debugging symbols found)...(no debugging symbols found)...(no debugging symbols found)...(no debugging symbols found)...(no debugging symbols found)...(no debugging symbols found)...(no debugging symbols found)...(no debugging symbols found)...(no debugging symbols found)...(no debugging symbols found)...(no debugging symbols found)...(no debugging symbols found)...(no debugging symbols found)...[Thread debugging using libthread_db enabled] [New Thread -1208055584 (LWP 5926)] (no debugging symbols found)...(no debugging symbols found)... Program received signal SIGSEGV, Segmentation fault. [Switching to Thread -1208055584 (LWP 5926)] 0x008139fa in fgets () from /lib/tls/libc.so.6 (gdb) backtrace #0 0x008139fa in fgets () from /lib/tls/libc.so.6 #1 0x08049d06 in ?? () #2 0xbff5d830 in ?? () #3 0x00001000 in ?? () #4 0x00ac5060 in ?? () #5 0x00000000 in ?? () (gdb) --------------- Version-Release number of selected component (if applicable): webalizer-2.01_10 How reproducible: Always Steps to Reproduce: 1. Run webalizer by specifying your own config file location 2. 3. Actual Results: Runs sometimes but segfaults most of the time. Expected Results: It should run without segfaulting and generate the appropriate log statistics. Additional info: Also, noticed that my log files were zeroed a few days back. The only process running on the files is webalizer. Dont know if webalizer zeroed them or it was something else. But Webalizer definitely has some problems.