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Date: Sun, 4 Aug 2002 19:28:47 -0700 (PDT)
From: Shizuka Kudo <shizukakudo_99@yahoo.com>
Subject: Re: current panic on apache2 after sys/kern/subr_mbuf.c commit
To: Shizuka Kudo <shizukakudo_99@yahoo.com>,
	freebsd-current@freebsd.org
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--- Shizuka Kudo <shizukakudo_99@yahoo.com> wrote:
> Dear all,
> 
> I have been experiencing panic with Apache2 since Jul 31. The system boot, but panic when
> someone
> access the apache2 service. After trace back, the subr_mbuf.c commit at around Jul 30 21:30 GMT
> is
> the candidate for this panic. Does anyone see the same problem as me?
> 

I think I find the problem which is the missing of assignment on one of the malloc call. Here's
the patch that seems to fix the problem.

--- usr/src/sys/kern/subr_mbuf.c        Thu Aug  1 22:24:41 2002
+++ /usr/src/sys/kern/subr_mbuf.c       Mon Aug  5 10:20:14 2002
@@ -1051,7 +1051,7 @@

 #define        _mext_init_ref(m, ref) do {                                    \
        if ((ref) == NULL)                                              \
-               malloc(sizeof(u_int), M_MBUF, M_NOWAIT);                \
+               (m)->m_ext.ref_cnt = malloc(sizeof(u_int), M_MBUF, M_NOWAIT);  \
        else                                                            \
                (m)->m_ext.ref_cnt = (u_int *)(ref);                    \
        if ((m)->m_ext.ref_cnt != NULL) {                               \


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