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From: Thierry Herbelot <thierry@herbelot.com>
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Cc: Alex Lyashkov <umka@sevinter.net>, current@freebsd.org
Subject: Re: panic: Memory modified after free
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Le Friday 24 June 2005 18:59, Alex Lyashkov a écrit :
> I got a simular panic with RELENG_5.
>
> -
> #2  0xc04a562a in panic (fmt=0xc0602beb "sbappendstream 1") at
> /usr/src/sys/kern/kern_shutdown.c:566
> #3  0xc04ddd3a in sbappendstream_locked (sb=0xc1838bb4, m=0xc1084600) at
> /usr/src/sys/kern/uipc_socket2.c:739
> #4  0xc0541978 in tcp_input (m=0xc1084600, off0=40) at
> /usr/src/sys/netinet/tcp_input.c:1295
> #5  0xc053b011 in ip_input (m=0xc1084600) at
> /usr/src/sys/netinet/ip_input.c:776
> #6  0xc050e016 in netisr_processqueue (ni=0xc067af38) at
> /usr/src/sys/net/netisr.c:233
> #7  0xc050e1c4 in swi_net (dummy=0x0) at /usr/src/sys/net/netisr.c:340
> #8  0xc0493e98 in ithread_loop (arg=0xc0fd9500) at
> /usr/src/sys/kern/kern_intr.c:547
> #9  0xc049330c in fork_exit (callout=0xc0493d74 <ithread_loop>,
> arg=0xc0fd9500, frame=0xc99add38)
> --

it seems your panic is on the input path, "mine" was on the ouput path and I 
do not see any call to the uma subsystem.

	TfH