Server segfaults on exit if server_log.txt is readonly

Server segfaults on exit if server_log.txt is readonly - Printable Version

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+--- Thread: Server segfaults on exit if server_log.txt is readonly (/showthread.php?tid=554822)

Server segfaults on exit if server_log.txt is readonly - xeeZ - 05.01.2015

This is the output from gdb:

Код:

Program received signal SIGSEGV, Segmentation fault.
=> 0xf7cf7c16 <fclose+22>:	cmpb   $0x0,0x46(%esi)
   0xf7cf7c1a <fclose+26>:	jne    0xf7cf7da0 <fclose+416>
   0xf7cf7c20 <fclose+32>:	mov    (%esi),%edx
   0xf7cf7c22 <fclose+34>:	test   $0x20,%dh
   0xf7cf7c25 <fclose+37>:	mov    %edx,%ecx
0xffffcd90:	0x08150d15	0x08150d10	0xffffcef8	0xf7eee9df
0xffffcda0:	0x00000000	0x00000000	0x00000000	0x0819f008
0xf7cf7c16 in fclose () from /lib/i386-linux-gnu/libc.so.6
(gdb) bt
#0  0xf7cf7c16 in fclose () from /lib/i386-linux-gnu/libc.so.6
#1  0x080a8925 in ?? ()
#2  0xf7cada83 in __libc_start_main () from /lib/i386-linux-gnu/libc.so.6
#3  0x0804b4d1 in ?? ()

Apparently the server tries to close server_log.txt when shutting down but fails because the file wasn't open.

AW: Server segfaults on exit if server_log.txt is readonly - Mellnik - 05.01.2015

Nice catch. Another entry on ****** server bug list.

Re: Server segfaults on exit if server_log.txt is readonly - Sew_Sumi - 06.01.2015

So you expect the server to be able to write to a read-only file

Re: Server segfaults on exit if server_log.txt is readonly - xeeZ - 06.01.2015

No, I'd expect it not to crash. Actually I don't care, just wanted to document this somewhere.

Re: Server segfaults on exit if server_log.txt is readonly - Sew_Sumi - 06.01.2015

Quote:

Originally Posted by xeeZ

No, I'd expect it not to crash. Actually I don't care, just wanted to document this somewhere.

Well, it's pretty stupid to have the server.log file read-only.

Even though it should say that it is read-only, and the server should shut down, it's only through actually setting the file to read-only, that this would happen, and no-one would really do that...

Re: Server segfaults on exit if server_log.txt is readonly - xeeZ - 07.01.2015

Indeed it's unusual to have a read-only server log, but it could be make so by accident. In fact that's what happened to me a couple of days back - the server was crashing for no apparent reason (no plugins, no anything, just a bare gamemode) and I totally wasn't noticing that until I ran it under gdb.

Re: Server segfaults on exit if server_log.txt is readonly - Sew_Sumi - 07.01.2015

And this is only on startup? It doesn't get to the point where it loads the gamemode?

Re: Server segfaults on exit if server_log.txt is readonly - Sew_Sumi - 07.01.2015

Quote:

Originally Posted by Gamer_Z

I do it always on my servers because I'm running everything through my own logging system. So it's common for me :P

So you don't use server.log?

How do you pipe it elsewhere?

Re: Server segfaults on exit if server_log.txt is readonly - TakeiT - 07.01.2015

Quote:

Originally Posted by Sew_Sumi

So you don't use server.log?

How do you pipe it elsewhere?

I don't use the server.log either, I use my own mysql based one so i can search with my ACP and delete any entries older than 30 days