LOR with divert sockets

[Andrea Venturoli]

Hello.
I posted the following message to questions and Kris (which I thank) 
kindly suggested I should ask here wether someone is working on this.
I'll also forward it for inclusion on the list at 
http://sources.zabbadoz.net/freebsd/lor.html.


BTW, I don't think the hangs I'm experiencing depend on this, but they 
might be important to you anyway.

  bye & Thanks
	av.


------------------------
Hello.
As I have already written to this list, several of my 6.2 servers are
hanging very frequently.
I've managed to turn on the following options on one of them:

> options         KDB
> options         DDB
> options         KDB_UNATTENDED
> options         INVARIANTS
> options         INVARIANT_SUPPORT
> options         WITNESS
> options         DEBUG_LOCKS
> options         DEBUG_VFS_LOCKS
> options         DIAGNOSTIC

I hope I can do that soon on the others too.
In the meanwhile I have seen this in the log:

> Feb 24 17:51:53 soth kernel: lock order reversal:
> Feb 24 17:51:53 soth kernel: 1st 0xc6a37090 inp (divinp) @ /usr/src/sys/netinet/ip_divert.c:336
> Feb 24 17:51:53 soth kernel: 2nd 0xc070a18c tcp (tcp) @ /usr/src/sys/netinet/ip_fw2.c:1982
> Feb 24 17:51:53 soth kernel: KDB: stack backtrace:
> Feb 24 17:51:53 soth kernel: kdb_backtrace(0,ffffffff,c06c8f10,c06cadb0,c0694084,...) at kdb_backtrace+0x29
> Feb 24 17:51:53 soth kernel: witness_checkorder(c070a18c,9,c0665b07,7be) at witness_checkorder+0x578
> Feb 24 17:51:53 soth kernel: _mtx_lock_flags(c070a18c,0,c0665b07,7be) at _mtx_lock_flags+0x78
> Feb 24 17:51:53 soth kernel: check_uidgid(c6a890b0,6,c6507800,46c046c1,6e,...) at check_uidgid+0xdf
> Feb 24 17:51:53 soth kernel: ipfw_chk(e6cc49f0,c6cfdb00,c6507800,0,0,...) at ipfw_chk+0xd74
> Feb 24 17:51:53 soth kernel: ipfw_check_out(0,e6cc4ae8,c6507800,2,0) at ipfw_check_out+0xe0
> Feb 24 17:51:53 soth kernel: pfil_run_hooks(c0709d40,e6cc4b5c,c6507800,2,0,...) at pfil_run_hooks+0xc9
> Feb 24 17:51:53 soth kernel: ip_output(c6cfdb00,0,e6cc4b28,22,0,...) at ip_output+0x66a
> Feb 24 17:51:53 soth kernel: div_output(c67a8000,c6cfdb00,c6b35be0,0,e6cc4c08,...) at div_output+0x185
> Feb 24 17:51:53 soth kernel: div_send(c67a8000,0,c6cfdb00,c6b35be0,0,...) at div_send+0x3f
> Feb 24 17:51:53 soth kernel:
> Feb 24 17:51:53 soth kernel: sosend(c67a8000,c6b35be0,e6cc4c3c,c6cfdb00,0,0,c657aa80) at sosend+0x5eb
> Feb 24 17:51:53 soth kernel: kern_sendit(c657aa80,3,e6cc4cbc,0,0,0) at kern_sendit+0x104
> Feb 24 17:51:53 soth kernel: sendit(c657aa80,3,e6cc4cbc,0,bfbdebc4,...) at sendit+0x163
> Feb 24 17:51:53 soth kernel: sendto(c657aa80,e6cc4d04) at sendto+0x4d
> Feb 24 17:51:53 soth kernel: syscall(3b,3b,3b,2,34,...) at syscall+0x25b
> Feb 24 17:51:53 soth kernel: Xint0x80_syscall() at Xint0x80_syscall+0x1f
> Feb 24 17:51:53 soth kernel: --- syscall (133, FreeBSD ELF32, sendto), eip = 0x2812ef43, esp = 0xbfbdeafc, ebp = 0xbfbeeba8 ---
> Feb 24 17:51:53 soth kernel: ipfw: 65534 Deny TCP 192.168.0.3:52325 193.70.192.70:110 out via xl0


Any comments?

I hope I can provide other, possibly more useful informations, in the
near future.

  bye & Thanks
	av.
_______________________________________________
freebsd-questions at freebsd.org mailing list
http://lists.freebsd.org/mailman/listinfo/freebsd-questions
To unsubscribe, send any mail to "freebsd-questions-unsubscribe at freebsd.org"