Re: sendfile data corruption

Fabian Keil <freebsd-listen_at_fabiankeil.de> wrote:

> Fabian Keil <freebsd-listen_at_fabiankeil.de> wrote:
> 
> > Andre Oppermann <andre_at_freebsd.org> wrote:
> 
> > > Please try this patch:
> > > 
> > >   http://people.freebsd.org/~andre/sendfile_fix-20061112.diff

> I just had to reboot the system and noticed several LORs before
> the login prompt. Because of this one:
> 
> lock order reversal:
>  1st 0xc070b6a8 Giant (sleep mutex)
> _at_ /usr/src/sys/kern/uipc_syscalls.c:1335 2nd 0xc27e5b10 inp (udpinp)
> _at_ /usr/src/sys/netinet/udp_usrreq.c:1120 3rd 0xc27e30e0 so_snd (sleep
> mutex) _at_ /usr/src/sys/kern/uipc_sockbuf.c:95 KDB: stack backtrace:
> db_trace_self_wrapper(c069ae0c) at db_trace_self_wrapper+0x25
> kdb_backtrace(0,0,c071a380,c071a060,c06d24c4,...) at kdb_backtrace+0x29
> witness_checkorder(c27e30e0,9,c069fc63,5f) at witness_checkorder+0x586
> _mtx_lock_flags(c27e30e0,0,c069fc63,5f,c27e5b10,...) at
> _mtx_lock_flags+0x84
> socantsendmore(c27e3000,c27e5b10,0,c06a78e3,460,...) at
> socantsendmore+0x1d
> udp_shutdown(c27e3000,0,d4b01d04,c2662700,d4b01c84,...) at
> udp_shutdown+0x3a soshutdown(c27e3000,2,c2776af8,0,c2662700,...) at
> soshutdown+0x37 shutdown(c2662700,d4b01d04) at shutdown+0x5d
> syscall(b0003b,822003b,bfbf003b,bfbfc5d0,bfbfc6f0,...) at syscall+0x256
> Xint0x80_syscall() at Xint0x80_syscall+0x1f --- syscall (134, FreeBSD
> ELF32, shutdown), eip = 0x2810a277, esp = 0xbfbfc5bc, ebp = 0xbfbfc608
> ---
> 
> I assume there is a connection to your patch.

As I'm still getting these without Andre's patch
they must be the result of some other changes.

Fabian
-- 
http://www.fabiankeil.de/