sendfile data corruption

[Fabian Keil]

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
> > 
> > It fixes apache 2.0.59 for me.
> 
> For me too, but I'm still seeing problems with Gatling/0.8.

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) @ /usr/src/sys/kern/uipc_syscalls.c:1335
 2nd 0xc27e5b10 inp (udpinp) @ /usr/src/sys/netinet/udp_usrreq.c:1120
 3rd 0xc27e30e0 so_snd (sleep mutex) @ /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.

For the rest of them please have a look at:
http://www.fabiankeil.de/tmp/freebsd/dmesg-with-lors.txt

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