Date: Mon, 11 Oct 2004 12:23:17 -0700 From: Sean McNeil <sean@mcneil.com> To: freebsd-current@freebsd.org Subject: natd crashing again with current/amd64 Message-ID: <1097522597.1123.4.camel@server>
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Since a build yesterday I am back to crashing. Something was fixed
Friday or Saturday that cured it, but now it is failing somewhere else:
Oct 11 07:36:19 server kernel: Fatal trap 12: page fault while in kernel mode
Oct 11 07:36:19 server kernel: fault virtual address = 0x18
Oct 11 07:36:19 server kernel: fault code = supervisor read, page
not present
Oct 11 07:36:19 server kernel: instruction pointer = 0x8:0xffffffff803528c0Oct 11 07:36:19 server kernel: stack pointer = 0x10:0xffffffffb1eea5f0
Oct 11 07:36:19 server kernel: frame pointer = 0x10:0xffffffffb1eea650
Oct 11 07:36:19 server kernel: code segment = base 0x0, limit 0xfffff, type 0x1b
Oct 11 07:36:19 server kernel: = DPL 0, pres 1, long 1, def32 0, gran 1
Oct 11 07:36:19 server kernel: processor eflags = interrupt enabled, resume, IOPL = 0
Oct 11 07:36:19 server kernel: current process = 249 (natd)
Oct 11 07:36:19 server kernel: trap number = 12
I don't have a traceback, but I can tell you where the failure is:
0xffffffff803528c0 is in m_copypacket (/usr/src/sys/kern/uipc_mbuf.c:452).
447 if (!m_dup_pkthdr(n, m, how))
448 goto nospace;
449 n->m_len = m->m_len;
450 if (m->m_flags & M_EXT) {
451 n->m_data = m->m_data;
452 n->m_ext = m->m_ext;
453 n->m_flags |= M_EXT;
454 MEXT_ADD_REF(m);
455 } else {
456 n->m_data = n->m_pktdat + (m->m_data - m->m_pktdat );
I am rebuilding world now and if it persists I will attempt to get my
kernel to drop into debug.
Sean
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